Mp1000(Svc) -Bomba de Infusion

MEDIFUSION

MP-1000 Service Manual

Before using the pump, please carefully read safety precautions.

Daiwha Co., Ltd

Copyright 2002, DAIWHADAIWHA Corporation, Ltd. All rights reserved.

This Manual describes the usage of an infusion pump(model : MP-1000) manufactured by Daiwha Co., Ltd

Only the person who is authorized by the company can repair this equipment and change a circuit. The equipment that is dismantled or repaired without prior permission cannot receive a post-management service.

Parts and circuits used in this equipment can be changed for better performance and safety reasons.

After reading this manual, put it in a place with easy access so that everybody can use it.

If you have any questions or concerns regarding this equipment and user manual, feel free to contact the company at the number below.

Address:

TEL:FAX:

Daiwha Co., Ltd., 733-18 Daiwha Bldg Yeoksam-dong Kangnam-Ku Seoul, Korea (822) 558 - 17116(822) 554 - 0317

Safety precautions are divided into the following categories depending on the level of the expected hazard and damage caused by the inappropriate use of the product and the level of urgency that requires actions.

- Danger : If you do not follow the instruction, it will cause severe injuries or even death.

- Warning : If you do not follow the instruction, it can cause serious injuries or death.

- Caution : If you do not follow the instruction, it can cause minor injuries or damage on the product.

Table of Contents

1. Precautions

2. General Description

3. Characteristics

4. Parts Description

5. Checkout

6. Theory of Operation

7. Trouble Shooting

8. Disassembly and Reassembly

9. Parts Breakdown

10. PCB

11. Schematic

1. Precautions

The following information is provided to help the user operate the pump safely and accurately and further prevent safety hazard or physical injuries or damage.

Danger

1. Keep the pump away from inflammable anesthetic.

Warning

1. Make sure that an inlet that is connected to the external power stays dry all the time.

2. Do not use a mobile phone, radio set or defibrillator generating high frequency near the pump.

3. Do not use this pump in MRI rooms, high-presser rooms or places while high electromagnetic radiation is generated.

4. Be sure not to set the infusion set in a reversed manner to normal pump operation. The patient's blood will be drawn up into the tubing.

Caution

1. Operate the pump by the designated steps.

2. When external power sources are used, keep in mind the following matters: 1) Use the power cord for the hospital and plug it into a grounded outlet. 2) Prior to use, check the rated voltage and frequency.3) Be sure to check whether an extension cord is abnormal or not.

3. Use only the person educated about the pump or a skilled hand

4. Attach the pump securely to an infusion stand and ensure its stability. If the pump happens to be dropped, or given any hard shocks, do not use it. Please call local agencies or the company.

5. During Infusion, frequently check the infusion line such as a rupture in the filter or a leak in the line. Check both pump and patient's conditions on a regular basis while drugs are infused. To ensure good patient connection to the infusion line, a male-to-female luer-lock type connection is recommended.

Caution

6. Pay close attention to the following matters when the infusion set is used.1) Use a designated infusion set for infusion pump. If any infusion set other than specified is used, proper flow rate accuracy and alarm function(air and occlusion) are not guaranteed. If the designated set is not available, contact company.

2) Do not pull on the tubing with excessive force. Then the intended flow rate may not be achieved.

3) Fit the tubing inside of the door from bottom to top. Securely set the tubing along the groove of the Peristaltic device . If not, free flow or leak can be occurred.

4) Do not connect an infusion set administrated from an infusion pump to another infusion line administrated only by the manual roller clamp(gravity infusion) because this may influence the accuracy of infusion and alarm functions.

5) When drugs are infused for extended time, change the tubing location once every 12 hours to use the tubing within the margin of errors.

6) Do not reuse the infusion set.

7. When the pump is operated under the shown description conditions, the flow rate accuracy may be incorrect.1) Using drugs of the higher viscosity such as dextrose 50%.2) Operating under an ambient temperature between +5 and +40, a relative humidity between 20% and 90%.

8. Pay attention to the following matters when the pump operates on battery.1) Check the battery use time. (The battery can be used for 2 hours at flow rate 25 ml/h if it is fully charged.)

2) Connect the main power to charge the battery if the indicator that displays Low Battery Alarm indicator on the front is turned on or the alarm sounds.

3) Charge the internal battery to full capacity by connecting the pump to an AC power supply for at least 15 hours.

4) When external(AC/DC) power is supplied, 3 lamps of the Battery capacity indicator is turned on, no concern with battery capacity.

9. Never connect both AC and DC power sources to the infusion pump at the same time. Using the DC power, be sure to check the polarity of the DC jack.

10. Do not sterilize the pump with autoclave or E.O gas. Do not wipe the pump with thinner, solvent, benzene, ammonia, acetone, etc. Use a wet cloth to clean it.

11. The infusion set used for all the tests in the IEC60601-2-24 and this manual is Korea Vaccine Type T Code 243.

12. Do not dismantle the pump.

2. General Description

2.1 Introduction

This manual provides service information for the Medifusion MP-1000 Volumetric Infusion Pump for qualified engineers and service personnel. Refer to the pump's User Manual for detailed operating instructions.

2.2 Technical SpecificationsProduct NameVolumetric infusion pumpModel Name MP-1000

Infusion PrinciplePeristaltic semi-transit fingerRange ofFlow Rate

0.1 ~ 99.9 ml/h : Increase and decrease by 0.1 ml/h100 ~ 999 ml/h : Increase and decrease by 1 ml/h

Accuracy 5% (Korea Vaccine type T : Code 243) Range of

Total Volume1~9999 ml orIndefinite

1 ~ 9999 ml : Increase and decrease by 1 ml

Range ofInfused Volume0.1 ~ 9999 ml

0.0 ~ 99.9 ml : Increase by 0.1 ml100 ~ 9999 ml : Increase by 1 ml

Purge Rate 700 ml/h (Subject to change)Purge volume3 ml (Subject to change)K.V.O Rate 1 ml/h (Subject to change)Display 7 segment (4 digit * 2 line)

Battery Used time - 2 hours or more (at flow rate 25 ml/h)Charging time - Approximately 15 hours

Alarm

Visible and audible alarm* Door open* Occlusion (Detection range : 100~950 mmHg) - Down-Stream Occl. 3 steps are adjustable.* Air(Bubble) detection* Low battery* Infusion complete* Alarm for abnormal operation

Power supply* 100~240 VAC, 50/60Hz (Fuse : 250V, T3.15A)* 12 VDCPower consumption30 VA

ClassificationClass , Type BF, IPX 1(Drip-proof)Dimensions(DWH)125166258 mm

Weight Approximately 3.2 kg

3. Characteristics3.1 Memory function1) The last used flow rate, total volume and options of the setting mode are saved when the pump is selected by pressing the START key .

2) The saved data are preserved semi-permanently by the inner memory.

3.2 Characteristics of the occlusion detection1) This test was performed according to the IEC 60601-2-24.2) The characteristics about the maximum time, pressure generated and bolus volume for activation of the occlusion alarm when the pump is operating at the flow rate 1ml/h and 25ml/h. For each flow rate, the occlusion pressure detection level was set to each of the 3 different levels (Low, Middle, High).

3) Infusion set : KOREA VACCINE TYPE T CODE 243

Each pump can be a numerical difference.

Flow rate(ml/h)

Occlusion level

Occlusion Pressure(mmHg)

Time toalarm

Bolus volume(ml)

1Low 371 18min 20sec0.18Middle 570 39min 15sec0.38High 950 1h 30min0.51

25Low 285 30sec 0.15Middle 535 1min 0.28High 921 2min 50sec0.73

3.3 Function of the Drop sensor (Option)1) The drop sensor alarm is activated in the case of accidental free flow, flow error or empty container. If it occurs, the pump is stopped.

2) It is recommended that the drop sensor be used for additional safety.3) When using the drop sensor, drop volume of the infusion set should be selected rightly at the Infusion set Setting mode. And options of Drop Sensor set ON. (See the 7. Setting mode).

4) Attach the drop sensor on the chamber of the infusion set by squeezing the drop sensor with your fingers. The drop sensor should be located between the drop nozzle of chamber and the surface of the solution. Ensure that the drop sensor is located between the drop nozzle of drop chamber and the surface of the solution as to avoid any incorrect detection.

5) When the drop sensor is attached, position the drop chamber vertically. If positioned inclined, correct drop sensor alarm is not ensured.

6) Ensure that the drop sensor is not exposed to direct sunlight.7) Always maintain clean the surface of the chamber of the infusion set located the drop sensor inside.

3.4 Flow rate accuracy1) This test was performed according to the IEC 60601-2-24.2) The test is devised to characterize the steady-state flow and to identify errors both in the mean flow and in variations about the mean flow. The graphs, START-UP CURVE and TRUMPET CURVE , are shown to illustrate the whole and instant flow rate accuracy of the pump. The measured flow rates are flow rate 1 and 25ml/h. And a used infusion set is Korea Vaccine Type T Code 243.

3) These graphs are related to the performance of the infusion set. So, the graphs can only serve as a representation of the performance of the combination of infusion set and pump.

3.4.1. START-UP CURVE The graph of time (horizontal axis) versus flow rate (vertical axis) give a clear and

simple picture of the general stability with time. This is generated during the stabilization period and produces the so-called START-UP CURVE . The start-up time to reach the desired flow rate decreases as the desired flow rate is increased.

Flow rate : 1 ml/h

0.00

0.50

1.00

1.50

2.00

2.50

3.00

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120

Test period, t(min)

Flow

rate

, Qi(m

l/h)

Flow rate : 25 ml/h

0

5

10

15

20

25

30

35

40

45

50

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120

Test period, t(min)

Flow

rate

, Qi(m

l/h)

3.4.2. TRUMPET CURVE The graph of observation interval (horizontal axis) versus percentage error (vertical axis)

is processed to integrate flow over a range of time periods. The maximum positive and negative errors occurring within these time periods are plotted. The end of the trumpet curve shows the regularity of the flow rate as measured for the 2, 5, 11, 19, and 31-minute window. The end of the trumpet curve becomes smaller as the flow rate is increased.

Flow rate : 1 ml/h

-100.0

-80.0

-60.0

-40.0

-20.0

0.0

20.0

40.0

60.0

80.0

2 5 11 19 31Observation interval (min)

Percentage error of flow

Flow rate : 25 ml/h

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

2 5 11 19 31Observation interval (min)

Percentage error of flow

4. Parts Description

4.1. Front

Item No. Function

1) Handle

2) Door Protects pumping unit, sensor, infusion set etc.,

3) Door handle Opens and closes pump door.

4.2. Key

Item No. Function

1) Purge key 8This key is used for purge. The total purge volume will be

infused automatically at the set up purge flow rate each time the key is pressed. (Note : It does not sense air and occlusion.)

2) Select key 9

- During setting : This key is used to set up the total volume, infused volume and flow rate.

- During infusion : This key is used to view the total volume and the infused volume.

3) Mode key 10 This key is used to convert the options for the pump.

4) Fast up/down key 11

This key is used to set up the total volume or the flow rate. The number increases in increments of 10 each time the key is pressed. The number rapidly increases while the key is being held down.

5) Slow up/down key 12

This key is used to set up the total volume or the flow rate. The number increases by one each time the key is pressed. The number rapidly increases while the key is being held down.

6) Start key 13 This key is used to start infusion.

7) Stop key 14

This key is used to stop infusion. In addition, when the key is pressed for one or two seconds while setting up the total volume and flow rate (including the infused volume), the set data will be cleared off.

8) On/off key 15

This key is used to turn the pump on/off. Press the key for two or three seconds to turn the pump on/off. If external power is supplied, the battery will be charged even if the corresponding indicator is off.

4.3. Display

Item No. Function

1) Flow rate display Window 1

This Window displays the infusion flow rate to the patient. It will be blinked when a flow rate set up function is selected (by pressing the SELECT KEY ).

2) Volume display Window 4

This Window displays the total volume or infused volume to the patient. It will be turned on along with the Total volume selection indicator when a Total volume set up function is selected (by pressing the SELECT KEY ). However, only the Infused volume selection indicator will be turned on when the infused volume is displayed.

3) Total volume selection indicator3

This indicator will be turned on when selecting Total volume selection (by pressing the SELECT KEY ). At this time, the total volume data will be displayed on the Volume display Window .

4) Infused volume selection indicator2

This indicator will be turned on when infused volume is selected (by pressing the SELECT KEY ). At this time, Infused volume data will be displayed on the Volume display Windows .

5) Purge indicator5 This indicator will be turned on when purge starts (by pressing the PURGE key ). It will be turned off when purge stops.

6) STOP indicator6 This indicator will be turned on when infusion is stopped. It will be turned off when infusion starts.

Item No. Function7) Infusion indicator7 This indicator displays the drug infusion state in percentage(%)

8) AC/DC indicator16 This indicator will be turned on when external power(AC/DC) is supplied. It will be turned off when operating on batteries.9) Battery capacity indicator 17

This indicator displays the battery capacity state in three levels. When external(AC/DC) power is supplied, 3 lamps of this indicator is turned on, no concern with battery capacity.

10) Air alarm indicator 18

This indicator will be blinked in addition to the alarm sounding when an air(bubble) sensor detects bubbles during the infusion process.

11) Occlusion alarm indicator 19

This indicator will be blinked in addition to the alarm sounding when an up or down occlusion sensor detects the infusion set being blocked during the infusion process.

12) Door open alarm indicator20

This indicator will be blinked in addition to the alarm sounding when the door is open or somebody opens the door forcefully during the infusion process. However, the indicator will be turned on without the alarm sounding when the door is open after the infusion is stopped.

13) Low Battery alarm indicator21

This indicator will be blinked in addition to the alarm sounding when the battery is exhausted.

14) Completion alarm indicator22

This indicator will be blinked in addition to the alarm sounding when infusion is completed.

15) Micro function indicator 23

This indicator will be turned on only in micro mode (Flow rate : 0.199.9ml/h).

4.4. Rear

Item No. Function

1) Nurse call port 26Connected to nurse call equipment by nurse call cable, this

port transmits warning to the nurse call equipment during the infusion.

2) Drop sensor port (option) 25 This port is connected to a drop sensor.

3) Power switch28 This switch is used to turn power on/off.4) DC power port 27 12 - 15 VDC power can be supplied through this port.

5) AC power port 29 100 - 240 VAC and 50/60 Hz can be supplied through this port. 6) Clamp 34 Secures the pump to the pole.7) Battery cover35 Easy change to the battery

4.5. Door Inside

Item No. Function1) Up occlusion detector 29

This part senses whether or not the tubing is blocked on the upper part of the pump.

2) Lever 30Pull down the lever to open the Pumping unit and push it

back to close it. When the door is closed without pushing the lever back, the lever will be pushed back automatically..

3) Pumping unit31 This part is used to infuse drugs by pressing the tubing on the infusion set.4) Down occlusion detector 32

This part senses whether or not the tubing is blocked on the lower part of the pump.

5) Air detector33 This part is used to prevent air from being infused by detecting air in the infusion set.

5. Checkout

5.1. Checkout of power1) Connect the infusion pump to AC power. Unload the set into the pump and close the pump door at this time.

2) Verify that AC/DC indicator is on.3) Turn the power switch on at the rear of the pump.4) Verify that all of the battery capacity indicators in the front of the pump are on.5) Verify that AC/DC indicator is off, When the pump disconnect with AC power. And verify that the battery capacity indicator in the front of the pump is on.

6) Connect the infusion pump to AC power again and Verify that AC/DC indicator is on.

5.2. Self test1) Press the on/off key at the front of the pump for 2 seconds and check that the pump performs the following self test.

2) The following displays illuminate momentarily; Alarm indicators, Infusion indicators. Total volume indicator and infused volume indicator, purge indicator, stop indicator and battery capacity indicator

3) All segments of the flow rate display window and volume display window illuminate momentarily.

4) Press the on/off key at the front of the pump for 2 seconds and verify that display turn off.

5.3. Accuracy test1) Turn the pump on and load an infusion set without air in the tubing 2) Program a flow rate of 100 ml/h and a total volume of 100 ml and verify that infused volume is 0 ml.

3) Start infusion by pressing the START key. While the pump is running, check for the normal operation without occlusion and that no bubbles are seen in the tubing.

4) When the pump has delivered the selected volume, the pump activates an audible alarm, illuminates the completion alarm LED, and switches to a KVO(Keep vein Open) rate.

5) To stop the infusion, press the STOP key and verify infusion time and infused volume.

5.4. Door open alarm test1) Turn the pump on and load an infusion set without air in the tubing 2) Verify that the door open alarm LED is on when the door is opening.3) Close the door and press the START key4) Open the pump door. Verify that the door open alarm indicator flashes and the audible alarm is activated.

5) To stop the door open alarm, press the STOP. 6) Verify that Door open indicator is on.

5.5. Air alarm test1) Turn the pump on and load an infusion set without air in the tubing.

2) Start infusion by pressing the START key. 3) Introduce an air into the infusion set. The air size should be greater than 3 mm (Approximately 30 ul).

4) When the air sensor detects air bubble, the air alarm indicator flashes and the audible alarm is activated.

5) To stop the AIR alarm, press the STOP.6) Verify that the AIR alarm indicator is on.

5.6. Down stream occlusion alarm test1) Turn the pump on and load an infusion set without air in the tubing.2) Start infusion by pressing the START key. 3) Fold and completely pinch the tubing just below the pump. 4) When the occlusion alarm is activated, the occlusion alarm indicator flashes and the audible alarm are activated.

5) To stop the occlusion alarm, press the STOP. And verify that the occlusion alarm indicator is on.

5.7. Up stream occlusion alarm test1) Turn the pump on and load an infusion set without air in the tubing.2) Start infusion by pressing the START key. 3) Fold and completely pinch the tubing just above the pump. 4) When the occlusion alarm is activated, the occlusion alarm indicator flashes and the audible alarm is activated.

5) To stop the occlusion alarm, press the STOP. And verify that the occlusion alarm indicator is on.

5.8. Low battery alarm test1) Turn the pump on and load an infusion set without air in the tubing 2) Program a flow rate of 10 ml/h and a total volume of 100 ml and verify that infused volume is 0 ml

3) Start infusion by pressing the START key. Verify that the micro function indicator is on and the stop indicator is off and the infusion indicator is blink.

4) Disconnect the infusion pump to AC power. No change in pumping should occur, but the AC/DC indicator should turn off within a few seconds.

5) IF low battery alarm is activated, plug the pump back in. Operation should continue without interruption, the AC/DC indicator should turn on and low battery alarm turn off.

5.9. Test mode1) Turn the pump on2) Press the MODE Key when infusion is stopped and then Program Version will be displayed. At this time, press the MODE Key one more time to enter into the

3) Check that the voltages displayed in the volume display window are within specification. the voltages displayed display the input voltage of A/D converter.

Description DisplaySpecification(hexadecimal) Remark

Air sensor (VAIR)Above 50HWhen tubing set00H 2H When tubing not set

Low Battery (VLB)E4H 2H When the pump connect with AC power91H 2H When the low battery alarm is activated

Up stream occlusion (VUP ) 9AH 2H When tubing not set

Down stream occlusion (VDOWN ) 9AH 2H When tubing not set

Note) Hexadecimal display

5.10. Electrical Safety TestTest the pump's leakage current and ground impedance with IEC 60601-1. Leakage current

should not exceed 1mA. Ground impedance should not exceed 0.1 using 25A

5.11. User maintenance5.11.1. Replacement of fuse of power inlet1) Remove the AC power from the pump2) Remove fuse box from the power inlet3) Replace with a new fuse of the same value, type and voltage.(250V, T3.15A)4) Reassemble fuse box and perform the electrical safety test to verify proper grounding impedance.

5.11.2. Replacement Of Battery1) Turn off and unplug the pump2) Remove battery cover and disconnect the connector from battery terminals3) Reassembly the battery into the pump in reverse order and reassembly battery cover4) Be careful with the polarities of the female connectors

5.11.3. Battery chargingThe battery is recharged whenever the pump is plugged in regardless of whether the pump

is on or off. To charge the battery, simply plug the pump into a 100-240 VAC outlet. The battery must be stored in a charged condition and should be recharged at least once a month.

5.11.4. CleaningThe pump should be cleaned as soon as possible after each use to minimize the

accumulation and harming of spilled solutions . Case and panel may be cleaned with a soft cloth moistened with cold or warm water. Before cleaning the pump, be sure to turn off the pump by Power switch , and disconnect the AC power port or DC power port from the pump. Do not sterilize the pump with autoclave or E.O gas and do not use thinner, solvent, benzene, ammonia or acetone.

6. Theory of Operation

6.1 Block Diagram

Oscillator OfCPU

ROM Battery ChargerOscillator OfAir Sensor

Detector OfPower

Power Battery

Air Sensor

Display Controller

Display(7 Segment

& LED)

A/D Converter Amplifier& RectifierReceiver OfAir Sensor

Key Controller

Buzzer Controller

Buzzer Driver

AmplifierDown Straem Occlusion Sensor

Key Pad

Motor Controller

Nurse CallDriver

AmplifierUp Straem Occlusion Sensor

SensorController

Detector OfRotation

Detector OfDrop

Detector OfDoor

Pumping Base

Nurse Call

EEPROM

CPU

Power Controller

6.2. Power supply part

Power supply part consists of SMPS and 5V regulator, battery, and battery charger. The AC power inputs into inlet with EMC/EMI filter. SMPS converts from DC power. Whenever

the SMPS is activated by AC power, the AC/DC indicator on the front is lit. SMPS (Switching Mode Power Supply) converts AC power (100~240VAC, 50/60Hz) into DC power(15VDC, 2.3A).

The SMPS has over-voltage and over-current protection. Two 3.15A slow blow replacement fuses are required for AC. Battery charger will charge the battery as long as the pump is connected to a specified AC power. 5V regulator circuit on the main rear board generates 5V(Vcc) for electronic components from

the output of SMPS and internal battery. .

6.3. CPU part CPU part consists of controller(CPU) and EPROM, EEPROM, address decoder and oscillator,

reset circuit.The controller(CPU) controls all pump function and gather data from the key controller, A/D

converter, EEPROM and alarm controller. The controller utilizes 16 address line and 8 data line.Program reserved at the EPROM make the system work and main data will be maintained at

the serial EEPROMOscillator generates 12MHz clock and pulse divider generates a pulse for the A/D converter.

6.4. Key control part

Key control part consists of keypad and key controller. The key is multiplexed 4 x 4 array, which is scanned by key controller. One of 4 select lines determine which four keys are read. All normal key depressions are decoded by this matrix.

6.5. Display part

Display part consists of display controller and two 7-segments with 4digits and several LED.Two-display controller manages display and displays are turned on in order. Alarm/operation

indicators are managed by the controller, while AC/DC indicator are managed by its own circuit.

6.6. Motor control part

Motor control part consists of motor and motor driver, rotation detector. The motor adopts bi-polar stepping motor to precise control and is controled by 1/8, 1/4, 1/2 micro step control in order to precise than control. The motor is shut down when an alarm or failure occurs. The motor speed range permits infusions from 1 to 999 ml/hThe motor rotation detector assures that pump drive rotation occurs or the motor shuts down.

CPU reads the motor rotation signal via the sensor controller.

6.7. Sensor

1) Air sensor partThe air sensor part consists of an ultrasonic transmitter and receiver mounted on opposite

sides of the tubing path. The transmitter consists of an oscillator and piezo ceramic that transform electric energy into mechanical energy. The transmitter consists of signal process part and piezo ceramic that transform mechanical energy into electric energy. The transducers operate on the principle that air in the tubing transmits ultrasonic energy

much less effectively than fluid. This energy is amplified, rectified, applied to the A/D converter and than converted into a digital signal. The CPU monitors the signal and activates an AIR alarm if it detects the absence of a level energy.

2) Occlusion sensor partThe down and up stream occlusion sensor consists of a moving magnet and hall sensor

that detects magnet. As the condition of infusion set, up and down of magnet, which is tangled by the end of occlusion is sensed by hall sensor. The moving magnet is spring-loaded against the tubing, when pressure down stream of the pump increase, the magnet moves from its original position, which in turns change the voltage of the sensor. If the occlusion is sufficient to cause a specific voltage change, the CPU activates an alarm. There is a maximum expansion of the tubing beyond which the pump will no longer permit

operation.

3) Low battery detectorThe input voltage is sensed by step-downed in use of resistance. The alarm works when

the voltage goes down under base line. When the voltage goes below impracticable figure, the display and motor stop.

4) Door Open SensorWhen the door is opened, the drop in voltage that is sensed by the distance between the

magnet stuck to the door and hole sensor. After all, the alarm works

7. Trouble Shooting

7.1. Trouble shooting Table7.1.1. When AC power and battery is abnormal

Table 1. Power & Battery BlockNo. Symptoms Causes Corrective Actions

1AC/DC indicator is off while pump is running on AC

1.Abnormal AC power2.Abnormal Fuse and SMPS3.Abnormal AC/DC indicator4.Malfunction in power circuit

1.Check AC power (100VAC~240VAC)2.Check power cable and fuse3.Check AC/DC indicator and D154. Check

2AC/DC indicator is on while pump is running on internal battery

1.Abnormal D16 1. Check D16

3Battery capacity indicator is off while power switch is on.

1.Malfunction in power circuit2.Malfunction in A/D Converter 3.Abnormal Battery capacity indicator4.Abnormal operation of display circuit5.Abnormal operation of CPU circuit

15. Check

4Low battery alarm is lit while power switch is on at AC power.

1.Malfunction in A/D Converter1.Check

5If battery capacity indicator is on, on/off key is not accepted

1.Abnormal On/off key 2.Malfunction in key scan circuit

1. Check On/off key2. Check

6When the on/off key push, the pump is not off

1.The pump is infusing2.The alarm is activated3.Error massage is displayed4.Abnormal on/off key

1~2. Push the stop key and turn pump off3. Check 4. Check

7When the power switch is off, the pump is not off

1.Abnormal power switch1. Check Power switch 2. Check J12 and cable

8When power switch is on, battery capacity indicators are off on internal battery.

1.The battery is not charged2.Malfunction in battery circuit3. Same cause as

1~2.Check 3.Check

9The Battery capacity indicators are off after charging.

1.The battery charge time is insufficient2.The life span of battery is exhausted3.Same cause as

1.Charging battery during 15 hours2.Replace Battery3.Check

10 Battery operating time is short 1.Same cause as 1.Check

11 Battery is not charged1.Abnormal Battery2.Malfunction in battery charge circuit

1.Replace Battery 2.Check

12When Supplying DC power, the pump not turn on

1.Abnormal DC jack2.Abnormal Connector J193.Abnormal D19

1.Replace DC jack2.Check J12 and cable3.Replace D9

7.1.2. When display is abnormal Table 2. Display Block

No. Symptoms Causes Corrective Actions

1 Central alarm indicators are abnormal1.Connector is not properly connected2.Abnormal alarm indicators

1.Check J19, J21 and alarm cable

2.Check alarm indicators

2One of volume, flow rate display segment is displayed

1.Display select controller is abnormal 1.Check

3One or more flow rate and volume display segment is not displayed.

1.Flow rate or volume display segment is abnormal

1.Check flow rate or volume display segment

4Flow rate display window is not displayed.

1.Flow rate display segment is abnormal2.Display data controller is abnormal

1.Check flow rate display segment2.Replace U23

5All flow rate display segment display same character.

1.Display data controller is abnormal 1.Replace U23

6One or more flow rate display segment is not displayed.

1.Flow rate display segment is abnormal2.Display select controller is abnormal

1.Check flow rate display segment2.Check

7 Volume display window is not displayed.1.Volume display segment is abnormal 1.Check volume display segment

8All volume display segment and indicator is not displayed.


9All volume display segment display same character.


10One or more volume display segment is not displayed.

1.Volume display segment is abnormal2.Display select controller is abnormal

1.Check volume display segment

2.Check

11 Only Indicators are not displayed. 1.Abnormal indicator1.Check indicator

12 The brightness of segment is irregularly1.Abnormal segment and indicator.2.Abnormal RA3-RA6

1.Check segment and indicator(LED).

2.Check RA3-RA6

7.1.3. When Key is abnormalTable 3. Keypad Block


1 All front keys are disabled.

1.When blinking error massage2.Malfunction in key scan circuit 3.Abnormal key controller enable signal4.Malfunction in CPU circuit

1.Check list

2~4.Check

2 One or more keys are not accepted.

1.When Infusing 2.Alarm is activated3.When

4.When

5.Abnormal key6.Malfunction in key scan circuit

1.Only STOP, START key is usable2.Only STOP key is usable3.Purge, select, start key is not usable at 4.Only slow up/down key, fast up/ down key is usable at 5.Check key6.Check

7.1.4. When Occlusion sensor is abnormal

Table 4. Occlusion Detector No. Symptoms Causes Corrective Actions

1 Occlusion sensor is not detected

1.Infusion set other than the specified is used2.Infusion set is misloading3.Malfunction in occlusion sensor circuit

1.Use recommend infusion set2.Reload Infusion set3.Check occlusion circuitUp Occlusion=> Check Down Occlusion=> Check

2Occlusion alarm is activated without occlusion

1.Infusion set is misloading2.Malfunction in occlusion sensor circuit

1.Reload Infusion set2.Check occlusion circuitUp Occlusion=> Check Chart 15Down Occlusion=> Check Chart 16

7.1.5. When Air sensor is abnormalTable 5. Air Detector Block


1 Air sensor is not detected

1.Below 2mm air bubble2.Air sensor is nonsensitive3.Malfunction in air sensor circuit

23.Check

2 Air alarm is activated without air bubble

1.Misloading Infusion set2.Air sensor is sensitive3.Malfunction in air sensor circuit

1.Reload infusion set23.Check Chart 14

7.1.6. When Door sensor is abnormalTable 6. Door Block


1When opening door, the door open alarm indicator is off.

1.Abnormal door open alarm indicator2.Malfunction in door circuit3.Malfunction in display circuit

1.Check door open alarm indicator

2.Check 3.Check list

2When closing door, the door open alarm indicator is on.

1.Malfunction in door circuit2.Malfunction in display circuit

1.Check 2.Check list

3Door open alarm occurs while the pump is running

1.Malfunction in door circuit 1.Check

7.1.7. When drop sensor s abnormalTable 7. Free-Drop Detector Block


1

"F.Err" alarm is activated When free flow not occur (When using drop sensor)

1.Drop sensor is not properly attached2.Abnormal drop sensor plug3.Drop sensor is internally broken

1.Properly attach Drop sensor

2.Check plug3.Check drop sensor circuit

2

"F.Err" alarm is not activated When free flow occurs (When using drop sensor)

1.Option of drop sensor is off2.Same cause as

1.Option of drop sensor sets on at

2.Check list

7.1.8. When buzzer is abnormalTable 8. Buzzer Block


1 Audible alarm dose not sound 1.Abnormal buzzer2.Malfunction in buzzer circuit

1.Check buzzer2.Check

2 Audible alarm is low or high.

1.Option of alarm sound is low or high2.Malfunction in buzzer circuit

1.Reset option of alarm sound at

2.Check R12, R14, R17

3 Audible alarm is abnormal 1.Abnormal buzzer1.Replace buzzer

4 Audible alarm is on (when infusing)1.Low battery voltage is detected 1.Recharging battery

5When the STOP key press, audible alarm is not off (when infusing)

1.Error massage display2.Abnormal STOP key3.Malfunction in key circuit

1.Check list2.Check Stop key3.Check

6 Audible alarm is always on 1.Malfunction in buzzer circuit1.Check

7.1.9. When Error code is displayedTable 9. Error States

No. Symptoms Causes Corrective Actions1 "Er. 01"is displayed and the buzzer sounds.1.Two or more key is pressed1.Check Chart 7

2 "Er. 02"is displayed and the buzzer sounds.1.Malfunction in A/D converter circuit 1.Check Chart 13

3 "Er. 03"is displayed and the buzzer sounds.1.Malfunction in EEPROM1.Replace EEPROM

4 "Er. 04"is displayed and the buzzer sounds.1.Rotation of pump is abnormal1.Check pumping unit2.Check

5 "Er. 05"is displayed and the buzzer sounds.1.When the pump is stop, pumping unit rotate

1.Check pumping unit2.Check

6 "Er. 06"is displayed and the buzzer sounds.1.Backlashing of motor1.Check Motor and replace

7 "Er. 07"is displayed and the buzzer sounds.1.Initial position of pumping unit is abnormal 1.Check Checker assembly

7.1.10. EtcTable 10. Others


1 The flow rate accuracy is low

1.The infusion set is not properly set2.Option of accuracy is low or high3.Abnormal pumping unit

1.Reloading Infusion set

2.Reset option of accuracy at 3.Check pumping unit

2 Nurse call is always on or off.

1.When the nurse call plug is abnormal2.When the nurse call circuit is abnormal

1.Check plug2.Check

7.2. Troubleshooting Flowchart

7.2.1. Chart1(When power is abnormal)

Chart 1

Connect AC power,Power S/W is ON

SMPS output= 15V?

J12.1 = 15V?

AC/DCLED is ON?

U34.1 > 13V ?

U34.4 = 5V?

Table 1-1

Check U34, C31

Check J12, cable

Check D15, LED26

Check power S/W,D16

SMPS input =AC power ?

Replace SMPS

AC power is 100VAC~240VAC?

Check fuse and power cable

Connect AC power of 100~240VAC

Chart 3

Table 1-3

Y

Y

N

N

N

N

Y

N

Y

N

Y

Y

N

Y

7.2.2. Chart2 (When battery is not charged)

Chart 2

Charge time >15hours?

Table 1-1

Battery voltage> 11V ?

Chart 3Check charge circuit

A/D Converter is not detect power

Connect AC power?

Connect AC power,Charge for 15 hours

Connect AC power,Power S/W is ON

U33.3 - U33.2= 1.25V?

Replace U33

J12.1 = 15V?

Check power S/W, D17

Y

N

N

Y

N

Y

N

N

Y

Y

7.2.3. Chart3 (When A/D Converter not detect power)

Chart 3

Li = E4H?

J20.B3 =4.45V?

Check A/D Converter

Chart 13

Check battery capacity indicator

Calibraton VR9 ,Check R50

Table 1-4

Table 1-3

Y

N

N

Y

7.2.4. Chart4 (Checkout of CPU circuit)

Frequency of U5.19= 12MHz?

Check U6, U7 Return

Chart 4

Correct waveform of U5.29?

Replace CrystalCheck CPU

Correct waveform of U5.1?

N

Y

Y

N

Y

N

7.2.5. Chart5 (Checkout of enable signal of controllers)

Detect waveformof U15.3 ?

Detect waveformof U10.3?



Chart 5

Check and replace U13


*Controller Enable Signal U10.11 Key Controller U10.8 Sensor Controller U10.6 Display Select Controller U15.6 Flowrate FND Data Controller U15.8 Volume FND Data Controller U13.4 Buzzer Controller U20.1 A/D Converter ALE/START U20.4 A/D Converter OE U20.13 Motor Controller




Check and replaceJ9, J26 and cable


U10 : OR GATE U12 : 2 TO 4 DECODER U13 : NOT GATE U15 : AND GATE U20 : NOR GATE

Y

Y

Y

Y

N

N

N

N

N

Y

7.2.6. Chart6 (When Display is abnormal)

When Flow rate display window is abnormal,

replace U23,When Volume display window is abnormal,

replace U25

Correct waveformof U29.4 ?

* Function of Registor array RA3 : Brightness of Flow rate FND a-d RA4 : Brightness of Flow rate FND e-g RA5 : Brightness of Flow rate FND a-d, LED1, LED2, LED3, LED21 RA6 : Brightness of Flow rate FND e-g LED8, LED9, LED10, LED20, LED12, LED13, LED14

Malfunctionin CPU

Abnormal displayselect enable signal

Malfunction in Display select controller

Malfunction inDisplay data controller

Chart 6

Abnormal FND, LED? Replace FND, LED

Correct waveformof U30.11-18 ?

Correct waveform ofU29.7, U29.9-15 ?

Replace U30Correct waveform

of U29.5 ?

Chart 4

Correct waveformof U5.1 ?

Check and replaceJ9, J26, cableReplace U29

Chart 5

*Enable Signal Line to select FND or LED U30.11 => U26.12(4th FND of Volume display window) U30.12 => U26.9(3rd FND of Volume display window) U30.13 => U26.8(2nd FND of Volume display window) U30.14 => U26.6(1st FND of Volume display window) U30.15 => U24.6(1st FND of Flow rate display window) LED1, LED2, LED3 LED8, LED9, LED10, LED11 U30.16 => U24.8(2nd FND of Flow rate display window LED12, LED13, LED14, LED15, LED6, LED7 U30.17 => U24.9(3rd FND of Flow rate display window) LED20, LED21 U30.18 => U24.12(4th FND of Flow rate display window

*Functional term of componenet U24 : Flow rate display winow (FND) U26 : Volume display winow (FND) LED1 : Battery capacity indicator (Empty) LED2 : Battery capacity indicator (Middle) LED3 : Battery capacity indicator (Full) LED8 : Total volume indicator LED9 : Infused volume indicator LED10 : Stop indicator LED11 : Purge indicator LED20 : Infusing indicator 1 (below 50%) LED21 : Infusing indicator 2 (above 50%) LED12 : Air alarm indicator LED13 : Occlusion alarm indicator LED14 : Door alarm indicator LED15 : Low Battery alarm indicator LED6 : Completion indicator LED7 : Micro function indicator

N

N

Y

Y N

N

Y

N

Y

N

Y

Y

7.2.7. Chart7 (When Key is abnormal)

Abnormal Key?

Replace Key Correct waveformof U36.1?

Correct insertion of RA2?

Table 1-6

Table 1-5Table 10-1

Correct waveformof U5.1?

Chart 5

Chart 4

Malfunctionin CPU

Chart 7

Alarm?

Check alarm

Correct waveformof U36.4-6 ?

Replace U36Replace RA2Replace U35

Y

N

N

Y

Y

Y

N

Y

N

N

Y

N

7.2.8. Chart8 (Checkout of Door open sensor)

Correct positionof Door sensor?

Reset magnet

Correct polarity of magnet

in Door handle?

Door open

J5.3="H"?

Door close

J5.3="L"?

Chart 8

Replace U8

Short or open sensor cable?

Replace cableReplace Door sensor

Reset Door sensor PCB

Detect signalof U8.1?

Check J20, J22


Chart 5

Y

N

Y

Y

Y

N

N

N

Y

N

N

Y

N

7.2.9. Chart9 (Checkout of Buzzer)

Check D4 and buzzzer


Chart 9

Door open alarmis activated

Correct waveformof U16 output?

*Output of U16 Small : U16.11 Middle : U16.14 High : U16.1


Check J20, J22Replace U16

Chart 5 Sound buzzer continuously?

Check Q4, Q5, Q6, U16and replace

Y

Y

N

N

Y

N

Y

N

7.2.10. Chart10 (Checkout of Nurse Call)

Chart 10

Chart 9

Check D25, Q2, Q7, K1and replace

Short or open external cable?

Replace cable

Sound buzzer?

Y

Y

N

7.2.11. Chart11 (Checkout of pumping unit)

Replace U8

Chart 11

Detect signalof U1.8, U1.12?

Detect signalof J17.2?

Detect signalof J17.3 ?

Infusion at 100ml/h

Replace MotorChecking Sensor1(SS1)

Replace MotorChecking Sensor2(SS2)

Replace U1

Operate pumping unit?

Break checker cable?

Rotate checker?

Replace checker cable

Chart 12

Reassemble Checker

Reassemble timingbelt and pully

Rotate motor?Y

N

Y

N

Y

Y

N

N

N

N

Y

Y

N

Y

7.2.12. Chart12 (Checkout of Motor driver)

Chart 12

Break motorcable?

Correct waveformof J13.1-J13.6?

Correct R51, R52, R56, R57, C26,

C29, D11-D14?

Replace

Correct waveformof U28.9, U28.19?

Replace U28



Replace U27

Replace U27, U32

Replace U32

Replace motor cable

Release pully and start infusion

Rotate motor?

Reassemble pummping unitReplace motor

U27.1 = 2.9V and

U27.2 = 2V ?

Check R45, R46, R48, R49

Y

Y

N

Y

Y

Y

Y

Y

N

Y

N

N

N

N

N

N

7.2.13. Chart13 (Checkout of A/D Converter)

Chart 13

Detect signalof U19.7 ?

U19.10 =375KHz?

Malfunction in CPU

U4.10 =12MHz?

Replace U19 Replace U4

Return

Chart 4

Detect signalof U19.22 ?

Chart 5

N

Y N

Y

N

Y

Y

N

7.2.14. Chart14 (Checkout of Air Sensor driver)

Chart 14

Set infusion set

Replace air sensor cable

Correct waveform of U17.12 ?

Select

Correct waveform of U19.1 ?

Replace Air Sensor ass'y

Calivration of VR10 *Not set infusion set : Below 04H *Set infusion set : Above 50H

Check R21, R19, R16

Y

Y

N

N

7.2.15. Chart15 (Checkout of Up stream Occlusion driver)

Chart 15

Release Infusion setand

Select

o1=9BH~99H?

Change the positionocclusion Finger

Changeo1?

Replace sensor ass'y

Set VR7 to MAX

o1 = A0H~A5H?

Replace Occlusionsensor ass'y

Correct position ofSensor?

Check R26, R28,R30, R31

Set positionof Sensor

Set VR7 to MAX

Changeo1?

o1 =00H?

CheckUp occlision cable

J20.B11= OV?

Error 2?

J10.2, J10.4> 2V?

J10.2 >J10.4?

Check magnet

U22.14>3.5V?

Correct R26, R28,R30, R31?

Replace ReplaceU22Replace

D7 Replace

Sensor ass'y

Chart 13 ReplaceA/D Converter

N

Y

N

Y

N

N

N

Y

Y

Y

Y

N

Y

NY

N

N

YN

Y

N

Y

Y

N

7.2.16. Chart16 (Checkout of down stream Occlusion driver)

Chart 16

Release Infusion setand

Select

o2=9BH~99H?

Change the positionocclusion Finger

Changeo2?

Replace sensor ass'y

Set VR8to MAX

o2= A0H~A5H?

Replace Occlusionsensor ass'y

Correct position ofSensor?

Check R39, R41,R42, R43

Set VR8 to MAX

Changeo2?

o2=00H?

Check Downocclision cable

J20.A3= OV?

Set positionof Sensor

Error 2?

J11.2, J11.4> 2V?

J11.2>J11.4?

Check magnet

U22.7 >3.5V ?

Correct R39, R41,R42, R43?

Replace ReplaceU22Replace

D8Replace

ensor ass'y

Chart 13

ReplaceA/D Converter

Y

N

Y

Y

N

Y

N

YN

Y

Y

Y

Y

N

Y

NY

N

N

N

N

Y

N

N

7.2.17. Chart17 (When POWER S/W is ON, Battery capacity indicator is off)

AC/DCLED is on?

Battery capacity indicator is off ?

Chart 1

Table 1-1

Replace batterycapacity indicatorU34.4=5V?

J20.B3=4.45V?

Chart 17


Chart 3

Chart 1

malfunction in CPU

Chart 4

U5.18=12MHz?

Chart 5

Chart 6

Chart 7

Diplay is on?


Chart 13

malfunction in A/D Converter

N

N

Y

Y

Y

N

Y

Y

N

Y

N

N

N

Y

Y

N

7.3. Waveform

7.3.1. Waveform of CPU

(1) Display Select Controller Enable Signal - U5.1(=U29.5)

(2) PSEN Signal - U5.29

7.3.2. Waveform of Display

(1) Display Data Controller Enable Signal - U23.11(=U15.6), U25.11(=U15.8)

(2) Display Select Controller Enable Signal - U29.4, U29.5(=U5.1) : (When flow rate display window blink)

(3) Display Select Controller Enable Signal - U29.4, U29.5(=U5.1) : (When volume display window blink)

(4) Display Select Controller Output - U30.11, U29.15(=U30.8)




7.3.3. Waveform of Key

(1) Key Controller Enable - U36.1(=U10.11), Key Scan Signal - U36.4



7.3.4. Waveform of buzzer

(1) Buzzer Controller Output - U16.14(sound level - Middle) : When door open alarm is activated

Output of U16 according to sound level Low : U16.11 Middle : U16.14 High : U16.1

7.3.5. Waveform of Checker

(1) Checker Sensor - J17.3(SS2), J17.2(SS1) : When flow rate is 100ml/h

Typical example

7.3.6. Waveform of Motor

(1) Motor Controller - U28.9, U28.19 : When flow rate is 100ml/h

Typical example

(2) Motor Driver - U27.10, U27.15 : When flow rate is 100ml/h

Typical example(3) Motor Driver - U32.10, U32.15 : When flow rate is 100ml/h

Typical example

7.3.7. Waveform of A/D Converter

(1) A/D Converter EOC - U19.7(=U5.14)

(2) A/D Converter - Start Signal : U19.22(U20.1), EOC Signal : U19.7(U5.14)

7.3.8. Waveform of Air Sensor

(1) Transmitter - U17.12, Receiver - U19.1 :

Typical example

7.4. Test mode (Calibration)

7.4.1. Reference of each sensor

[Reference of each sensor at ]

DescriptionDisplayReference(Hexa-decimal)

CheckPoint

Reference voltage

Adjustcomponent Remark

Air Sensor above 50HU19.26above 1.25V VR10 When tubing setsUp Stream Occlusion Sensor9AH U19.27 3V VR7 When tubing not setDown StreamOcclusion sensor9AH U19.28 3V VR8 When tubing not setLow battery(Power Detector)E4H U19.1 4.46V VR9

When the pump connects the AC power

7.4.2. Adjust each sensor

(1) Calibration of air SensorAdjust waveform of transmitter by VR6, VR11 and VR12. (See 7.3.8. waveform of air

Sensor). and adjust that the voltage of receiver is 00H when tubing set and it is 50h when tubing not set by VR10 When the voltage of air sensor downs 20H, air alarm is activated. If air sensor is

abnormal, check the air sensor by

(2) Calibration of up/down Occlusion SensorAdjust that the voltage of A/D converter input is 9AH by VR7(Up), VR8(Down).Down Occlusion adjust sensitivity of 3 levels at . When occlusion alarm is

activated, Occlusion alarm indicator is blinks with audible alarm. Up Occlusion not adjust sensitivity.When occlusion is not detected, check the occlusion sensor by

Table - Table 4>.

7.4.3. Calibration of Low Battery(Power Detector)

[Reference voltage of Low Battery(Power Detector)]

Voltageof Battery

Voltageof U19.1

Display (Hexadecimal)Change of Battery capacity indicator

AC power4.45V E4H AC/DC LED ON11.6V(Full)3.59V B8H All battery capacity indicators are on

9.74V 2.99V 98H Two battery capacity indicators are on9.56V 2.91V 95H One battery capacity indicator is on9.33V 2.83V 91H Battery capacity indicators are off8.8V 2.66V 88H Motor stops8.33V 2.5V 80H Display is off7.8V 2.32V 77H System is off (Reset)

Adjust voltage of low battery is E4H by VR9 when connecting the AC power. If voltage drops above 81H(voltage of U18.1=2.52V), display is turn off regardless of connecting the AC power.

8. Disassembly and Reassembly

Disassembly of the Infusion pump MP-1000 is limited to the mechanical component and PCB assemblies. The pump that is dismantled or repaired without prior permission cannot receive a post-management service.Always make sure the pump is unplugged and that the pump is turn off before disassemble.

Component of Infusion pump MP-1000 is sensitive to electrostatic discharge damage. Always disassemble and reassemble the pump on an anti-static mat.

8.1. Separation of front case and rear case (See 9.5)1) Turn the pump off and remove screw at rear case. Take care not to lay the pump face down on components that could damage the front panel.

2) Separate the front and rear case by slowly lifting the rear case. 3) Avoid stressing the pump's internal cabling when separating the front and rear case. 4) Stand the rear case horizontally 5) Disconnect the connectors, J11, J12 from the main rear PCB ass'y and disconnect the connector J8 from the main front PCB ass'y and disconnect the ground cable from the power inlet

6) Reassemble case in reverse order. Verify cable route7) Perform the operational checkout (See 3.)

8.2. Replacement of PCB ass'y of front case (See 9.1)1) Separate the front case and rear case completely. (See 8.1)2) Disconnect the connectors, J13, J1, J5, J11, from the main rear PCB ass'y and disconnect the connector J6 from the main front PCB ass'y

3) Remove screw of the main front PCB ass'y and lift main PCB ass'y. Then disconnect connector, J22 from bottom of main front PCB ass'y.

4) Remove screw main rear PCB ass'y and separate main rear PCB ass'y and main front PCB ass'y

5) Disconnect connector, J21 from the alarm PCB ass'y and remove screw of the display and alarm PCB ass'y. Then separate the display and alarm PCB ass'y.

6) Reassemble PCB ass'y in reverse order.

8.3. Replacement of Air sensor ass'y (See 9.1)1) Separate the front case and rear case completely. (See 8.1)2) Disconnect connector of air sensor ass'y, J6 from the main front PCB ass'y and remove screw of air sensor ass'y.

3) Separate air sensor ass'y and front case by lifting air sensor ass'y.4) Reassemble the air sensor ass'y in reverse order. 5) Do not reuse the air sensor ass'y.

8.4. Replacement of door and door handle (See 9.5)1) Open the door and remove screw from door pin.2) Pull bottom door pin up and pull top door pin down. Then separate door and front case.

3) Remove pin hole cover and E-ring(82) from the door handle pin and push door handle pin out of door and separate handle.

4) Reassemble the door and door handle in reverse order.5) Do not reuse the E-ring

8.5. Replacement of Up / Down stream occlusion sensor (See 9.4)1) Separate the front case and rear case completely. (See 8.1)2) Disconnect the two connectors J10, J11 from Main front PCB ass'y. 3) Remove occlusion sensor PCB ass'y from occlusion sensor ass'y.4) Separate the door. (See 8.4)5) Remove screw from the occlusion sensor ass'y inside door, push the occlusion sensor ass'y out of door

6) Reassemble the occlusion sensor ass'y in reverse order.7) Do not reuse the PCB ass'y and sensor ass'y.

8.6. Replacement of Door latch (See 9.1 and 9.4)1) Open the door. Remove screw from the slide knob and separate the knob.2) Remove screw from the door latch and separate the door latch.3) Reassemble the door latch in reverse order.

8.7. Replacement of Motor (See 9.4)1) Separate the front case and rear case completely. (See 8.1)2) Disconnect the two connectors J13, J10 from the main front PCB ass'y.3) Separate the door. (See 8.4)4) Remove screw from the up occlusion sensor ass'y.5) Remove screw from door base plate and separate the motor ass'y. 6) Remove wrench screw from the motor ass'y and separate the pulley. Then separate the motor and buffer jig.

7) Reassemble the motor in reverse order.

8.8. Replacement of Checker, checker PCB ass'y and door sensor PCB ass'y (See 9.3)1) Separate the front case and rear case completely. (See 8.1)2) Disconnect the connectors, J1, J5, J11 from the main front PCB ass'y.3) Remove screw from the door sensor PCB ass'y and checker PCB ass'y. Separate the door sensor PCB ass'y and checker PCB ass'y.

4) Separate the door. (See 8.4)5) Remove screw from the down occlusion sensor ass'y.6) Remove screw from the checker and separate checker.7) Reassemble in reverse order.

8.9. Replacement of pumping unit (See 9.4) 1) Separate the front case and rear case completely. (See 8.1)

2) Separate the door and separate motor ass'y and checker PCB ass'y, checker.3) Remove the screw from the pumping unit and separate pumping unit and front case by

pushing the pumping unit out of door.4) Reassemble the pumping unit in reverse order.5) Perform the accuracy test.

8.10. Replacement of Clamp (See 9.2)1) Separate the front case and rear case completely. (See 8.1)2) Remove the screw from the clamp plate and separate the clamp ass'y.3) Reassemble the clamp in reverse order.4) Perform the ground impedance test.

8.11. Replacement of External connector PCB ass'y and DC jack PCB ass'y, power switch (See 9.2)1) Separate the front case and rear case completely. (See 8.1)2) Remove the screw from the external PCB ass'y and DC jack PCB ass'y. Separate the external PCB ass'y and DC jack PCB ass'y.

3) Separate power switch from the rear case by pushing4) Reassemble the clamp in reverse order.

8.12. Replacement of SMPS (See 9.2)1) Separate the front case and rear case completely. (See 8.1)2) Remove cable from the SMPS3) Remove label and screw, then separate SMPS. 4) Reassemble the clamp in reverse order. 5) Perform the ground impedance test.

8.13. Replacement of power inlet (See 9.2)1) Separate the front case and rear case completely. (See 8.1)2) Separate External PCB ass'y and DC jack PCB ass'y. 3) Remove cable from the power inlet.4) Separate connector hole cover and DC jack hole cover.5) Remove inlet label.6) Remove screw and separate power inlet.7) Reassemble the clamp in reverse order. 8) Perform the ground impedance test.

9. Parts Breakdown

9.1. Front case assembly (1)

No. Description Qty No. Description Qty1 Door base plate 1 10 Flat head screw (M3X8L)62 Case front 1 11 Flat washer (ID=3.2, OD=6)63 Door hinge 2 12 Spring washer (ID=3.2)224 Display PCB ass'y 1 13 Pan head screw (M3X8L)195 Main front PCB ass'y 1 14 Flat washer (ID=3.2, OD=8)166 Main rear PCB ass'y 1 15 Pan head screw (M3X5L) 37 Alarm PCB ass'y 1 16 Nut (M3) 48 Air sensor ass'y 1 17 Toothed lock washer (ID=3.2)49 Door latch 1 18 PCB supporter(H=17.0) 4

9.2. Rear case assembly

No. Description Qty No. Description Qty10 Flat head screw (M3X8L)2 26 Clamp body 112 Spring washer (ID=3.2)8 27 Clamp Locker 113 Pan head screw (M3X8L)6 28 E-ring (5) 114 Flat washer (ID=3.2, OD=8)8 29 Power switch 119 SMPS 1 30 Connector hole cover220 DC jack PCB ass'y 1 31 DC jack hole cover 121 Ext. connector PCB ass'y1 32 Inlet label 122 Plat head screw (M4x15L)4 33 Power inlet 123 Clamp plate 1 34 Pan head screw (M3X10L)224 Case rear 1 35 Battery pack 125 Clamp handle 1 36 Battery cover 1

9.3. Pumping unit assembly

No. Description Qty No. Description Qty10 Flat head screw (M3X8L)1 53 Finger - A 216 Nut (M3) 4 54 Pumping unit case - left139 Magnet(5) 2 55 Pan head screw (M3X35L)444 Slide knob 1 56 Buffer pully 145 Slide 1 57 Wrench screw (M3X5L) 446 Roller 4 58 Bearing 247 Presser 1 59 Teflon washer 248 Pumping unit cover 1 60 CAM 749 Mini Presser spring 2 61 CAM spacer 650 Mini presser 2 62 CAM shaft 151 Finger shaft 1 63 Pumping unit case - right152 Finger - B 5

9.4. Front case assembly (2)

No. Description Qty No. Description Qty10 Flat head screw (M3X8L)4 66 Stepping motor 111 Flat washer (ID=3.2, OD=6)4 67 Buffer jig 112 Spring washer (ID=3.2)17 68 Pulley 113 Pan head screw (M3X8L)13 69 PCB supporter (H=5.0) 214 Flat washer (ID=3.2, OD=8)13 70 Motor checker PCB ass'y115 Pan head screw (M3X5L)4 71 Checker 157 Wrench screw (M3X5L) 2 72 Down Occl. sensor PCB ass'y164 Up Occl. sensor PCB ass'y1 73 Door sensor PCB ass'y165 Timing belt 1

9.5. Case assembly

No. Description Qty No. Description Qty11 Flat washer (ID=3.2, OD=6)2 79 Flat head screw (M3X5L)212 Spring washer (ID=3.2)6 80 Door 114 Flat washer (ID=3.2, OD=8)4 81 Door handle pin 139 Magnet(5) 1 82 E-ring(3) 174 Overlay 1 83 Handle rubber 175 Alarm window 1 84 Rubber foot 476 Door Handle 1 85 Pan head screw (M3X75L)277 Pin hole cover 2 86 Pan head screw (M3X45L)278 Door pin 2 87 Pan head screw (M3X15L)2

10. PCB

10.1 Main front PCB

10.2 Main rear PCB

10.3 Display PCB

10.4 Rotation checker PCB

10.5 Occlusion sensor PCB (Up / Down stream)

10.6 Air sensor PCB

10.7 External connection PCB

10.8 DC jack PCB

10.9 Door PCB

10.10 Drop Sensor PCB

11. Schematic

11.1. Schematic of power control

11.2. Schematic of CPU

11.3. Schematic of address decoder

11.4. Schematic of display control

11.5. Schematic of motor control

11.6. Schematic of AD converter

11.7. Schematic of buzzer and nurse call control

11.8. Schematic of additional sensor

11.9. Schematic of key control

11.10. Schematic of external connection

11.11. Schematic of drop sensor

Mp1000(Svc) -Bomba de Infusion

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