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KDYUSH.413347.005-12 UM IGM-10 battery supply User manual rev-17-10-16

“IGM-DETECTOR” CO. LTD

Gas analyzer

IGM–10

(with battery supply)

User manual

KDYUSH.413347.005-12 UM

Saint Petersburg


2016


Table of contents

Introduction..........................................................................................................................................3

1. Application notes........................................................................................................................4

2. Specification................................................................................................................................5

3. Delivery set.................................................................................................................................6

4. Description and operation...........................................................................................................6

5. Explosion protection.................................................................................................................10

6. Marking and sealing..................................................................................................................11

7. Package.....................................................................................................................................11

8. Safety precautions.....................................................................................................................11

9 Special conditions of use...........................................................................................................12

10 Proper use..................................................................................................................................13

Appendix A.......................................................................................................................................15

Appendix B .......................................................................................................................................16

Appendix C.........................................................................................................................................21

Appendix D........................................................................................................................................23

Appendix E.........................................................................................................................................25

Appendix F.........................................................................................................................................27

Appendix G.........................................................................................................................................28


IntroductionThis User manual is designed to study the arrangement, design and operation of IGM-10 gas analyzer (hereinafter, gas analyzer or GA) with modifications IGM-10-X-2X, IGM-10-Х-3Х (with built-in battery supply).The User manual contains the basic technical data and characteristics of GA, recommendations on maintenance, as well as other information necessary for the proper operations.For modifications IGM-10-Х-00, IGM-10-Х-01 and IGM-10-Х-11 (modifications with external power supply) issued User manual KDYUSH. .413347.005 UM.

Main application of GA is explosive areas in accordance with the marking Ex 1Exd [ib] IIBT6 X, with possible formation of explosive mixtures of gases and vapors with the air.

Measurement method: IR-absorption Sampling method: diffusionGA operating position is arbitrary. Operating mode is continuous.Analyzed ambience - workplace air as per 12.1.005-88 GOST StandardGA design and modification are presented in the Appendix A. Calibration period: 1 year.

Example identification when ordering:"IGM–10-1-22 Gas analyzer, KDYUSH.413347.005".

Abbreviations and symbols adopted in this User manual:UM – User manualGA – gas analyzerLEL – lower explosive limit UART – Universal Asynchronous Receiver / TransmitterMTBF – mean time between failuresLED – light-emitting diode


1. Application notes

1.1. GA is designed for automatic continuous measurement of the concentration of explosive hydrocarbon gases or carbon dioxide in the surrounding atmosphere. The calibration of explosive gas is produced with samples of methane, propane or hexane.The gas analyzer complies with the requirements of GOST 12.2.007.0, GOST R 51330.0 (IEC 60079-0) , GOST R51330.1 (IEC 60079 - 1), GOST R51330.10 (IEC 60079-11), GOST R51330.13 (IEC 60079-14) , GOST 13320 , GOST 27540 and GOST 26.011.

Application area is explosive zones of premises and zones near external technological installations with possible formation of explosive mixtures of gases and vapors with air according to GOST R51330.13 (IEC 60079-14) and the marking Ex 1Exd [ib] IIBT6 X.

1.2. The gas analyzer is designed for permanent installation and provides displaying of information on the measured value of the concentration by digital serial interface (Appendix E). Additionally, depending on modification UART, RS-485 or RS-232 with data flow hardware control RTS/CTS is used. All digital interface options operate under MODBUS® protocol (Appendix F). Besides it on a separate line, apart from digital interface exchange there are digital signals:

IGM-10-Х-Х0: “ALARM” (short circuit in external power supply to “ALARM” line) signalize about rising the concentration beyond predefined thresholds

IGM-10-Х-Х2 и IGM-10-Х-Х4: "ALARM1" and "ALARM2" The gas analyzer provides an indication of exceeding of the measurement range.

These thresholds can be adjusted by digital interface. the results of self-diagnosis in accordance with Table 1 and Table 2.

Table 1 Modifications conditions indication IGM-10-Х-20, IGM-10-Х-30

RS-485 MODBUS «ALARM» signalConcentration

register Status register

Defective gas analyzer, no voltage supply

None None None

Voltage supply is within the prescribed limits, GA is OK

Concentration reading

No failure None

Exceedance of the measuring range


Category of threshold

exceedance External voltage

Optical sensor failure, optics contamination, reduced voltage supply

«FFFF» reading Category of failure None

Table 2. Modifications conditions indication IGM -10-Х-22, IGM-10-Х-32 и IGM-10-Х-24, IGM-10-Х-34


RS-232 MODBUS «ALARM1» signal

«ALARM2» signalConcentration

register Status register

Defective gas analyzer, no voltage supply

None None Non-continuous

Non-continuous

Voltage supply is within the prescribed limits, GA is OK


No failure Non-continuous

Non-continuous

Exceedance of the 1st measuring range


Category of exceedance of the

1st thresholdContinuous Non-

continuousExceedance of the 2nd

measuring rangeConcentration

readingCategory of

exceedance of the 2nd threshold

Continuous Continuous

Optical sensor failure, optics contamination, reduced voltage

supply

«FFFF» reading

Category of failureNon-

continuousContinuous

1.3. Operating conditions: Temperature range - 40 … 60 0С; Relative humidity 30 … 98 %; Atmospheric pressure 80 … 120 kPa; The content of mechanical and corrosive contaminants in the controlled environment must not

exceed the limits of the maximum allowable concentration acc. to GOST 12.1.005.1.4 GA climatic category – B5, II atmospheric pattern acc. to GOST 15150.

2 Specification2.1. Explosion proof mark is 1Exd [ib] IIBT6X according to GOST R 51330.0 (IEC 60079-0),

GOST R 51330.1 (IEC 60079-1), GOST R 51330.10 (IEC 60079-11).2.2. GA electric shock protection class: III acc. to GOST 14254 (IEC 529)2.3. Ingress protection rating corresponds to IP65 according to IEC 60529.2.4. Dimensions of the gas analyzer, mm, no more than 115×90×220.2.5. Weight, kg: not more than 1.5.2.6. Power supply: built-in li-ion battery of high capacity with nominal voltage of 3.6V. The

average current with an unloaded interface, not more than: 2 mA.2.7. Warm-up time, sec, not more than: 120.2.8. Continuous operation from one battery (if the sampling rate for the interface RS485 is not

more than 1 time in 30 min., UART and RS232 – not more than 1 time in two minutes) - at least 1 year.

2.9. Accuracy and measuring range: for each modification in accordance with Table A.1 of Appendix A.


2.10. Intrinsic error limit, not more than:±(3 +0.02*С) LEL for IGM-10-1-х, IGM-10-2-х, IGM-10-3-х modifications acc. to Table A.1

2.11. Temperature, pressure and humidity performance (additional error), is according to Table А.2 of Appendix A.

2.12. Setting time limit, sec, not more than: 20.2.13. Additional absolute limit of error, not more than:

±0,5∆d at the ambient temperature range of operation for every 100С; ±0,5∆d at the pressure change of the environment in the operation range for every 3.3

kPa.2.14. Limit of the gas analyzer operation without adjustment of the output signal: at least 12

months.2.15. The gas analyzer has no physical damage, normal functioning during and after test 1 mm

shift for freq. 10-30 Hz, acceleration=19,6 m/s2 for 31-150 Hz, acc. IEC 60068-2-6.2.16. The gas analyzer has immunity to conducted disturbances 80-1000Mhz, 3V/m intensity acc.

to EN/IEC 61000-4-6, Severity level 2.2.17. Transportation conditions:

ambient temperature from -50 to 600C; relative humidity from 30 to 98%; atmospheric pressure from 80 to 120 kPa.

2.18. Total average service life – 10 years.

3 Delivery set3.1. Standard delivery set of the gas analyzer is shown in Table 2.

Table 2Name Designator Quantity

IGM-10 Gas analyzer KDYUSH.413347.005 1PGS adapter1) KDYUSH. 301191.049 1Packing box KDYUSH. 413935.013 1Datasheet KDYUSH.413347.005-ХХ 1User manual 1) KDYUSH.413347.005-12 UM 1IGM software2) n/d 1Note:1) The quantity is subject to agreement with the customer in the case of group delivery to one address.2) On request.

4 Design and operation4.1. Gas analyzer principleThe principle of GA operation is based on selective absorption of infrared radiation o f i n v e s t i g a t e d g a s molecules (in the wavelength of 3,31um for methane.

The infrared radiation of a light-emitting diode permeates a measuring diffusion-type gas cell and gets at 2 light-sensitive cells; one of them is responsive to radiation in the range of wavelength of 3.31 m only, while the other one registers radiation in the range of wavelength of 3.5 to 3.7 m. The investigated gas present in the cell absorbs radiation of the operating wavelength (p= 3,31 m) and does not affect radiation of the reference operating wavelength (o=3,65 m). The amplitude Ip of the light-sensitive cell operating signal changes upon changing concentration in accordance with equation:


Iр/ Iо = ехр { - [ К(р) - К (о)]СL }; (1)where:К () - absorption coefficient at a given wavelength;L - optical length of the cell;С - gas measured concentration;Iр, Iо - amplitude of the signal on the receiver.

The concentration of the gas is given by:С = -Ln (Ip/Io) /(L [ K (р) - К (о) ]); (2)

Using differential dual wavelength method of registration allows eliminating influence of water vapour, contamination of optical elements and other non-selective hindrances affecting both channels similarly.

4.2. Construction design

The general view of the gas analyzer (modification with a connector) is shown in Pic 1.

Picture 1

Structurally, the gas analyzer is a cylindrical metal body with a cover on the side surface of which there is a connector or a cable gland (depending on the modification) for connecting external circuits and the optical sensor module.

Outline drawing of the gas analyzer is shown in Appendix D of this manual. The device consists of the following modules: infrared optical sensor MIPEX-02; controller and interface module.Infrared optical sensor MIPEX-02-X-X-X.1X includes infrared light-emitting diode (LED), LED receivers of Signal and Reference channels, analog amplifiers, microcontroller and supply voltages unit.The sensor gives the value of the gas measured concentration in the UART direct digital interface. The sensor is intrinsically safe with Ex ia IIС U marking, and connected to the gas analyzer with intrinsically safe circuits.


Depending on modification the interface module includes a microcontroller, interface and signal generator «ALARM».

The microcontroller performs the following functions: management of all nodes of the interface module; indication of the gas analyzer status and mode; information exchange.

GA switching on and switching off performs automatically in case of external power supply; for IGM-10-X-X4 modification an additional power control by external lines is provided – at PWR_EN line closure to СОМ line, the battery supply voltage is given at internal circuits, when breaking the PWR_EN and COM lines – takes off.External circuit connection pattern – in acc. with Picture B1-B6 of Apendix B and instructions of section 9. The connector pin assignment for IGM-10-X-20 is shown in Picture 2, for IGM-10-Х-22 – in picture 3 and for IGM-10-Х24 in the picture 4.

XP1

All voltages are measured with respect to pin 7 (COM line).1. External voltage to +12V which is necessary for «Alarm» signal generation. Internal

key incircle tis voltage to pin 6 (Alarm circuit) if the measured gas concentration exceedes the predetermined first threshold.

2. Line B of RS485 interface.3. Line A of RS485.4. A terminal for load resistor connection for RS485interface lines.5. A terminal for load resistor connection for RS485interface lines. When pins 4 and 5

close to A and B lines an internal load switches on (sequentially 120 ohm resistor with size 0,01 µF).

6. Alarm signal (description is above)7. Common circuit (COM line

Net →

+3.6VExt 1

RS485B 2

RS485A 3

RT1 4

RT2 5

Alarm 6

COM 7


Picture 2. Plug pins assignment of IGM-10-Х-20

All voltages are measured with respect to pin 7 (COM line).1. «Alarm1» signal. Internal key encircle this line to pin 7(COM circuit) if the measured gas concentration exceeds the predetermined first threshold.2. Line RTS of RS232 interface.3. Line СTS of RS232 interface.4. Line TX of RS232 interface.5. Line RX of RS232 interface.6. «Alarm2» signal. Internal key encircle this line to pin 7 (COM circuit) if the measured gas concentration exceeds the predetermined second threshold.7. Common circuit (COM line).

Picture 3. Plug pins assignment of IGM-10-Х-22

Net →

Alarm1 1

RTS 2

CTS 3

TxD 4

RxD 5

Alarm2 6

COM 7

Net →

Alarm1 1

PWR_EN 2

COM 3

TxD 4

RxD 5

Alarm2 6

COM 7


All voltages are measured with respect to pin 7 (COM line).1. «Alarm1» signal. Internal key encircle this line to pin 7(COM circuit) if the measured gas concentration exceeds the predetermined first threshold.2. PWR_EN line. Line encircles to COM line (pin 3) and the supply voltage from the battery goes to internal circuits.3. COM line. Line encircles PWR_EN line (pin 2) and the supply voltage from the battery goes to internal circuits.

4. Line TX of RS232 interface.5. Line RX of RS232 interface.6. «Alarm2» signal. Internal key encircle this line to pin 7 (COM circuit) if the measured gas concentration exceeds the predetermined second threshold.7. Common circuit (COM line).

5. Explosion protection5.1 The gas analyzer explosion protection is provided by "flameproof enclosure" according to GOST R51330.1 (IEC 60079 - 1), and "intrinsically safe electrical circuit" level "ib" according to GOST R51330.10 (IEC 60079-11), the marking 1Exd [ib] IIBT6 X in accordance with GOST R 51330.0 (IEC 60079-0). The explosion protection design is shown in Appendix B.

5.2 The gas analyzer explosion protection is achieved by: encasement of electronic parts in the flameproof enclosure with a slit field of explosion-proof coupling of parts and assemblies of the flameproof enclosure that can withstand explosion pressure and avoid the transmission of the explosion to the surrounding explosive atmosphere. The assembling of parts are noted in the drawing as "Grease" with acceptable parameters of explosion protection for flameproof screw joints: the number of complete turns of screw thread intact, axial length and thread pitch according to the requirements of GOST R51330.1 (IEC 60079 - 1); sealing of light transmitting windows, MIPEX-02 interface node and external switching connector with a compound according to GOST R51330.1 (IEC 60079 - 1); protection from loosening of all the elements holding the parts that ensure explosion protection of the gas analyzer; mechanical strength of the gas analyzer encasement complies with GOST R 51330.0 (IEC 60079-0); corrosion protection grease for all surfaces marked with the word "Grease"; limiting the heating temperature of the outer parts of the gas analyzer (85 0C);

type of protection "intrinsically safe" is achieved by limiting the parameters of electric circuits of the intrinsic safety barrier of the power module and encoder interface, «ALARM» («ALARM1», «ALARM2») interface module to the intrinsically safe values in accordance with GOST R51330.10 (IEC 60079-11); provision of the necessary clearances and creepage paths according to GOST R51330.10 (IEC 60079-11); warning signs on the cover of the gas analyzer housing "Do not open in hazardous areas!”X sign standing after the explosion-proof marking means that the operation of the gas

analyzer must comply with specific conditions. (Ref. p. 9.1 of the present manual).


6 Marking and sealing

6.1. Marking of the gas analyzer comprises:

- name and trademark of the manufacturer;

- name and designation of the gas analyzer;

- month and year of manufacture;

- gas analyzer number in the numbering system of the manufacturer;

- identification of technical specifications;

- measuring range;

- basic measurement error;

- designation of protection;

- warning notice "intrinsically safe";

- warning inscription "Do not open in hazardous areas!";

- IP code;

- operating temperature range;

- supply voltage parameters;

- power consumption;

- name of the certification body and the certificate number;

- GND sign.6.2. The gas analyzer is sealed at the factory.

7 Package7.1. The gas analyzer and maintenance documentation are packed in a cardboard box.

The cardboard box with the gas analyzer is covered with plastic tape with an adhesive layer.

7.2. Represervation storage time is 1 year.

8 Safety precautions8.1. Using of GA is allowed only for persons who are appropriately trained on

safety and who have studied this UM.8.2. When working with the cylinder containing calibration gas mixtures under

pressure, it is necessary to comply with the safety requirements in accordance with the "Rules of construction and safe operation of vessels working under pressure" approved by the State Technical Supervision of Russia dd. 04.18.95.

8.3. Operating staff is recommended to train at the production plant.8.4. Repairing of the gas analyzer must be carried out only by the manufacturer’s

personnel or persons authorized by the manufacturer for repairs.8.5. Before switching on the gas analyzer, check the absence of external defects,

safety of the seals, presence of all fasteners.8.6. The operation of the gas analyzer having mechanical damage of the housing or

the sealing is prohibited.8.7. The gas analyzer housing must be grounded.


8.8. It is not allowed to release the control gas mixture into the atmosphere of working premises at the adjustment and calibration of the gas analyzer.

9 Special conditions of use9.1. Special conditions of application marked with X after explosion-proof marking,

including the following requirements: operation and installation of the gas analyzer must be carried out by the personnel who

are informed of operation rules of electrical installations in hazardous areas, who studied this manual, certified and approved by an administration order for working with these products;

cabling in hazardous areas in accordance with the Installation Operating Procedures; the gas analyzer should be protected from bumps and falls during operation; operation of the gas analyzer with damaged housing or sealing is prohibited;

installation and connection of the gas analyzer must be must be carried out without power supply;

parameters of power supply and the interface must correspond to the intrinsic safety parameters of the Appendix B.

Connection of the supply circuits of RS-485 interface and «ALARM» signal of IGM–10–Х–20 must be performed in accordance with Picture B.1 of Appendix B through diode safety barrier marked Exib IIB, Exia IIB, located in a non-explosive area, with the following parameters of intrinsic safety:

max. output voltage (U0 ) - to 12V max. output current ( I 0 ) - up to 250 mА input capacitance of RS-485 interface circuits Ci = 1,1 uF input inductance of RS-485 interface circuits Li = 0 mH input capacitance of “ALARM” circuits Ci = 0 uF input inductance of “ALARM” circuits Li = 0 mH

Connection of RS-485 interface circuits of IGM–10–Х–22 must be performed in accordance with Picture B.1 and B.2 of Appendix B through diode safety barriers Exib IIB, Exia IIB compliant, located in a non-explosive area, with the following parameters of intrinsic safety:

max. output voltage (U0 ) – up to 12 V max. output current ( I 0 ) - up to 250 mA input capacitance of RS-485 interface circuits Ci = 1,21 uF line inductance of RS-485 interface circuits Li = 0 mH.

Connection of RS-485 interface circuits of IGM–10–Х–22 must be performed in accordance with Picture B.2 of Appendix B through diode safety barriers Exib IIB, Exia IIB compliant, located in a non-explosive area, with the following parameters of intrinsic safety:

max. output voltage (U0 ) - to 12V max. output current ( I 0 ) - up to 250 mА input capacitance of RS-232 interface circuits Ci = 1,1 uF input inductance of RS-232 interface circuits Li = 0 mH input capacitance of “ALARM” circuits Ci = 0 uF input inductance of “ALARM” circuits Li = 0 mH

connection of “ALARM1” and “ALARM2” circuits of IGM–10–Х–22 must be performed in accordance with Picture B.2 of Appendix B through diode safety barriers Exib IIB, Exia IIB compliant, located in a non-explosive area, with the following parameters of intrinsic safety:

o max. output voltage (U0 ) - to 28V


o max. output current ( I 0 ) - up to 250 mА o input capacitance of “ALARM1” and “ALARM2” circuits Ci = 0 uFo input inductance of “ALARM1” and “ALARM2” circuits Li = 0 mH

connection of “ALARM1” and “ALARM2” circuits of IGM–10–Х–24 must be performed in accordance with Picture B.3 of Appendix B through diode safety barriers Exib IIB, Exia IIB compliant, located in a non-explosive area, with the following parameters of intrinsic safety:

o max. output voltage (U0 ) - to 28Vo max. output current ( I 0 ) - up to 250 mА o input capacitance of “ALARM1” and “ALARM2” circuits Ci = 0 uFo input inductance of “ALARM1” and “ALARM2” circuits Li = 0 mH

connection of UART circuits of IGM–10–Х–24 must be performed in accordance with Picture B.3 of Appendix B through diode safety barriers Exib IIB, Exia IIB compliant, located in a non-explosive area, with the following parameters of intrinsic safety:

o max. output voltage (U0 ) - to 5Vo max. output current ( I 0 ) - up to 250 mА o input capacitance of UART interface circuits Ci = 1,1 uFo input inductance of UART interface circuits Li = 0 mH

connection of the external circuits of IGM-10-X-30 must be performed in accordance with Picture B.4 of Appendix B, the voltage must not exceed the values Um: 12V.

connection of the external circuits of IGM-10-X-32 must be performed in accordance with Picture B.5 of Appendix B, the voltage must not exceed the values Um:

- for «ALARM1» и «ALARM2» circuits Um=28V- for RS-232 MODBUS interface circuits Um=12V

connection of the external circuits of IGM-10-X-34 must be performed in accordance with Picture B.6 of Appendix B, the voltage must not exceed the values Um:

- for «ALARM1» и «ALARM2» circuits Um=28V- for UART MODBUS interface circuits Um=5V

10 Proper use10.1 General requirements10.1.1. Using of GA is allowed only for persons who had an appropriate safety training, who have studied this UM and have a qualification in electrical safety.

10.2 Pre-starting procedure10.2.1. If the gas analyzer was in transport containers at negative temperature, hold it at the

temperature of 10-350C at least for an hour.10.2.2. Unpack the GA. Check completeness, presence of seals, marking Ex, make sure there

are no mechanical damages.10.2.3. Caution! To prevent a wasteful discharge of the battery IGM-10-Х-20, IGM-

10-Х-22 modifications comes with a battery compartment disconnected from the electronic circuit! Switching on and off of the gas analyzer is carried out manually outside hazardous areas. To bring the GA into operation, the user must remove the top cover in accordance with Appendix F, plug in the connector of the battery compartment to the connector XP1 of the electronic


board and install the cover back.

10.3 Explosion protection during installation Installation of the gas analyzer on site must be carried out in accordance with the prescribed order of placing the monitoring system, which is used as part of the gas analyzer.10.3.2. The electrical connections must comply with Picture B.1 of Appendix B. 10.3.3. Installation of the gas analyzer must be carried out in accordance with the manufacturer's documentation.

10.4 Operation procedure 10.4.1. Explosion protection during operation.

10.4.1.1. The gas analyzer must have an external grounding.10.4.2 Initial checking of the gas analyzer performance.

10.4.2.1. Connecting of the gas analyzer.Remove the top cover in accordance with Appendix F, plug in the connector of the battery compartment to the connector XP1 of the electronic board and install the cover back. Connect the interface circuit in accordance with Picture B.1 of Appendix B.

10.4.2.2. Alarm and indication must be performed in accordance with Table 1 after switching on of the gas analyzer in a room with an atmosphere containing no combustible gas impurities.

10.4.2.3. After the supply of external power to the gas analyzer the current of 4 mA is on its analog output (when using an analog output) or 0 concentration value when using a digital interface. After 2 minutes the gas analyzer automatically controls the content of combustible gases in the working area and its output displays the concentration in accordance with Appendix E.

10.4.2.4. When achieving threshold concentration of combustible gases the gas analyzer performs indication and alarm in accordance with Table 1.

10.5 Technical maintenance 10.5.1Technical maintenance is performed to ensure the normal operation of the gas analyzer during its operating life. The maintenance should be conducted by instructed persons who studied this UM who had a safety training when working on electrical installations in potentially explosive areas in accordance with the established procedure, and training at the production plant.10.5.2. Types and dates of service:

GA construction check - monthly; checking of operation – annually (if GA is switched off); cleaning of the housing and metal-ceramic filter - annually.

10.5.3. Control of normal operation.Control of normal operation is carried out automatically, the main faults are displayed in accordance with Table 1.10.5.4. Zero setting and calibration of the gas analyzer is performed annually in accordance with the procedure (Appendix 3). Zeroing setting must be performed directly after installation on site before commissioning of the gas analyzer.

10.6 Storage and transportation10.6.1. Transportation conditions in acc. with GOST 15150.10.6.2. Transportation of the gas analyzers must be carried by all modes of enclosed transport, as

well as in heated sealed compartments of aircraft in accordance with transport regulations, operating in the appropriate mode of transport.


10.6.3. Gas analyzers in the manufacturer’s packaging must be kept in warehouses of the supplier and the customer.

10.6.4. Storage rooms must not contain harmful impurities that cause corrosion.10.6.5. Gas analyzers in pack of the manufacturer must be kept in a rack-type store.10.6.6. The distance between heating devices of the storage and gas analyzers should be at least

0.5 m.10.6.7. The gas analyzer should be reconcervated upon expiration of represervation storage.


Appendix А

Design and modification

Construction design of the gas analyzer:IGM–10–1– 0 0 -1

a b c d

a Modification according to Table А.1 (measured gas).b Connection type: 0 - With external power supply, connector;1 - Built-in battery supply, cable gland.c Interface type:0- RS-485 MODBUS® and ALARM relay;

2 - RS-232 MODBUS® ALARM1 и ALARM2 relays; 4 – UART and ALARM1 и ALARM2 relays; d Data protocol modification No sign – standart data protocolSpecial version of data protocol is numerated.

Table А.1 – Gas analyzer modifications

Modification Test gas Measuring range Accuracy Temperature

IGM -10-1- methane 0–100 % LEL ±(3 +0.02*С) % LEL - 40… 65 0СIGM -10-2- propane 0–100 % LEL ±(3 +0.02*С) % LEL - 40 … 65 0СIGM -10-3- hexane 0–50 % LEL ±(3 +0.02*С) % LEL - 40 … 65 0СIGM-10-3- carbon oxide 0 – 25 5 Vol.

25±(0.1+0,05*С) %Vol. - 10 … 40 0С

Example identification when ordering:

IGM-10-1-22 gas analyzer for measuring of methane concentration, battery-operated, RS-485

MODBUS® interface.


Appendix BPicture B.1 – Diagram of connection of IGM-10-X-20 to an intrinsically safe power source and RS-485 interface and ‘ALARM” signal.

1. Installation of external circuitry must be conducted in accordance with the current regulatory documentation.2. Power supply and interface circuit connection is allowed only through intrinsic safety barriers (IB) that have a permission to use category [ib] IIB.3. Internal parameters of the intrinsic safety of the power circuit [ib] IIB: Li = 0 mH, Ci = 1,1 uF.4. Internal parameters of the intrinsic safety of the interface circuit [ib] IIB: Li = 0 mH, Ci = 0 uF..

"ALARM" signalR1

COMRS

R

D RS485A(D0)

RS485B(D1)

X1

Uп <12 V

IGM-10-Х-20

Non-explosive areaExplosion-hazard area

1COM

NumNet

IS Barrier

Uo < 12 IS Barrier

Io < 250 mA

7COMRS

6ALARM

5RT2

4RT1

3RS485A(D0)

2RS485B(D1)Two channel IS barrier Uo < 12 VIo < 250 mA

1+Uext

NumNet

IS Barrier

Uo < 12 VIo < 250 mA


Picture B.2 – Diagram of connection of IGM-10-X-22 to an intrinsically safe power circuits RS-232 interface and ‘ALARM1”, “ALARM2” signal.

Explosion-hazard area Non-explosive area

IS Barrier ALARM1

IGM-10-Х-22 Uo < 28 VIo < 250 мА

IS Barrier ALARM2Uo < 28 V

X1Io < 250 мА

Net NumAlarm1 1

RTS 2 RTSNonpolar two

channel IS barrier

CTS 3 CTSUo < 12 VIo< 250 мА

TxD 4

RxD 5Alarm2 6COMRS 7 Nonpolar two

Channel ISbarrier TXD

RXD

Uo < 12 BIo < 250 мА

COMRSNet Num

COM 1

1. Installation of external circuitry must be conducted in accordance with the current regulatory documentation.2. Power supply and interface circuit connection is allowed only through intrinsic safety barriers (IB) that have a permission to use category [ib] IIB.3. Internal parameters of the intrinsic safety of the power circuit [ib] IIB: Li = 0 mH, Ci = 1,1 uF.4. Internal parameters of the intrinsic safety of the interface circuit [ib] IIB: Li = 0 mH, Ci = 0 uF..


Appendix BPicture B.3 – Diagram of connection of IGM-10-X-24 to an intrinsically safe power circuits

UART MODBUS interface and ‘ALARM1”, “ALARM2” signal.

Explosive area Non-explosive area

IS barrierIGM-10-Х-24 Uo < 28 V

Io < 250 мА

IS barrierUo < 28 VIo < 250 мА

X1Net Num

Two channelAlarm1 1

PWR_EN 2 IS barrierCOM 3 Uo < 5 VTxD 4 Io < 250 мАRxD 5

Alarm2 6COM 7

Net NumCHASSY 1

1. Installation of external circuitry must be conducted in accordance with the current regulatory documentation.2. Power supply and interface circuit connection is allowed only through intrinsic safety barriers (IB) that have a permission to use category [ib] IIB.3. Internal parameters of the intrinsic safety of the UART interface circuit [ib] IIB: Li = 0 mH, Ci = 1,1 uF.4. Internal parameters of the intrinsic safety of the "Alarm1" и "Alarm2” interface circuit [ib] IIB: Li = 0 mH, Ci = 0 uF..

Picture B.4 – Diagram of connection of IGM-10-X-30 to external circuits.


Explosive area Non-explosive area1

Cover 1ExdIIBT6

Cable glandExdIIC/ExeII/ExiaIICIGM-10-Х-30

A3/XP2

Net Num 1+UExt 1

2Alarm 2

3RS485B(D1) 3 Cable, acc. to4RS485A(D0) 4

5 GOST R 51330.0-99,RT1 5

6 GOST R 51330.13-99RT2 6

7GND 7

Net NumCOM 1

1. Installation of external circuitry must be conducted in accordance with the current regulatory documentation.2. Power supply and interface circuit connection is allowed only through intrinsic safety barriers (IB) that have a permission to use category [ib] IIB.3. Internal parameters of the intrinsic safety of the UART interface circuit [ib] IIB: Li = 0 mH, Ci = 1,1 uF.4. Internal parameters of the intrinsic safety of the "Alarm1" и "Alarm2” interface circuit [ib] IIB: Li = 0 mH, Ci = 0 uF.

2

R1 ALARM

U <12 V7

4 RS485A(D0)D

3 RS485B(D1) R

7 COMRS


Picture B.5Diagram of IGM-10-X-32 connection to external circuits.

Explosive area Non-eplosive area

Cover 1ExdIIBT6 R1 R2 U <28 V

1 ALARM1Cable gland

2ExdIIC/ExeII/ExiaIIC ALARM2IGM-10-Х-32

7 COM_ALMA3/XP2Net Num

1 COM_RS232Alarm1 12

Alarm2 2 3RTS3RTS 3 Cable, acc. to4

CTS 4 45 GOST R 51330.0-99, CTSTxD 5

6 GOST R 51330.13-99RxD 6 5

TXD7GND 7

6RXD

Net NumCOM 1 GROUND

Picture B.6 – Diagram of IGM-10-X-34 connection to external circuits.

Explosive area Non-explosive area

R1 R2 U <28 VCover 1ExdIIBT6

1ALARM1

Cable gland6ExdIIC/ExeII/ExiaIIC ALARM2IGM-10-Х-347 COM_ALM

A3/XP2

Net Num 1 COM_UARTAlarm1 1

2PWR_EN 2 4

TXD3COM 3 Cable, acc. to4TxD 4 5

5 GOST R 51330.0-99, RXDRxD 5

6 GOST R 51330.13-99Alarm2 6 27

COM 7

3SA1 "Power Enable"

Net NumCOM 1

GROUND

Appendix C


Picture C.1 – Explosion proof of IGM-10-Х-XX.


Appendix ECommunication protocol

Interface: RS-232 (19200, 8-E-1, RTS/CTS).

Protocol: MODBUS RTU supports the following commands:- Reading from the device. Command Code 03 (Read Holding Registers,- Recording of a word to the device. Command Code 06 (Write Single Register).

Registers of the device (all 16-bit):

Register # Register address Description Access Type

1 0 Address of the device Rd/Rc word2 1 Serial number of the device (low-

order byte)Rd word

3 2 Serial number of the device (high-order byte)

Rd word4 3 Condition of the device Rd/Rc word5 4 Temperature, °С Rd int6 5 Concentration Rd/Rc word7 6 Threshold concentration Rd/Rc word8 7 Software version Rd word

Register 1:15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Address (1 – 247) Stop bit Parity Speed

- Exchange rate via RS-485 channel::1 - 1200 baud,2 - 2400 baud,3 - 4800 baud,4 - 9600 baud,5 - 19200 baud,6 - 38400 baud,7 - 57600 baud,8 - 115200 baud.- Parity:

0 - none,1 - odd parity,2 - even parity.

- Stop bit (amount of stop bit): 1 or 2.To change the device address or exchange rate the user needs to record the new values into the appropriate fields of the register. The record of the values different from the specified does not lead to a change in the contents of the corresponding fields of the register.

Register 2:15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Device number (low-order)

Register 3:15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0


Device number (high order)

Register 4:15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Start Conc Sens Opt Dep Pow Check

Status flag: Check - 0 - failure / 1 – normal function (Conc| Opt | Sens |). Pow – 1- low battery / normal function Dep - 1 - depassivation of the battery / 0 – normal consumption

Conc - 1 – exceedance of the concentration threshold / 0 - normal functionOpt - 1 – the device is non-functional (optics contamination) / 0 – normal functionSens - 1 - the device is non-functional (hardware error) / 0 – normal functionStart - 1 – heating of the device / 0 – normal functionRecord:

0х0400 / 0х0000 - switching on / off of the imitation mode.

Register 5:15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0Rd. Temperature * 100, С

Register 6:15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Concentration * 100, % об.Reading:

0хFFFF - the device is not functional (see Register 4).Recording:

0xFFFF - setting of the factory scale factor 0xBBBB - zeroing of the device.True concentration (concentration in vol. % * 100) - scaling of the device.

Register 7:15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Threshold concentration No.1 * 100, % vol.

The change of the threshold is performed with recording of a new value to the register (in % vol. * 100).

Note:

The device returns the standard error codes that correspond to the specification of the Protocol MODBUS v1.1b. It also returns code 03 (invalid value) if scaling of the readings are incorrect.


Appendix F

Instructions for connecting power supply from the battery to internal circuits of IGM-10-Х-20, IGM-10-Х-22:- Unscrew the locking screw on top cover of the gas analyzer- Remove the top cover by the thread - Connect the connector of the battery compartment to the connector XP1 of the electronic board (see Picture F.1).- Put the cover back.- Lock the locking screw.

Connector of the battery packConnector of the battery pack


Appendix G

Calibration of the gas analyzer

1. Zeroing and calibration of the gas analyzer is performed annually when preparing for the verification. Zeroing is also performed directly after installation on site before commissioning.

2. When performing calibration, one uses tools given in Picture G.1 and in the list of control gas mixtures, the communication protocol is given in Appendix E.

Picture G.1 – calibration diagram

Interface circuits must be connected according to Appendix B.

3. Zeroing and calibration of the gas analyzer is performed by a testing engineer with regard to the following order:

- Connect the adapter with the gas analyzer- Supply control gas mixture No.1, in a minute issue a command of zeroing “0” via serial digital interface. The readings of the gas analyzer must be settled at 0. Zeroing of GA is performed.- Supply control gas mixture No.2, in a minute perform scaling of the concentration, for which record the unknown quantity of the concentration of the control gas mixture No.2 in the register of concentration. The readings of the gas analyzer must be settled to the unknown quantity.

5

76

314

2

6. Gas redactor 7. Flow meter

1. IGM-10 gas analyzer2. Adapter 3. Interface cable4. ЭВМ5. Control gas mixture


- Supply control gas mixture No.3 and check the readings of the gas analyzer in accordance with Appendix E.- In the case of non-compliance of the readings to the concentration value of the control gas mixture No.3, the zeroing and calibration must be repeated. In the case of repeated non-compliance of the readings to the concentration value of the control gas mixture No.3, the gas analyzer should be changed and sent to the manufacturer for repairing.

List of control gas mixtures

*Note: For concentration expressed in vol. %, the conversion into % LEL is performed with the following formula:

% LEL =100 C ; %

C hwhereС – volume concentration, vol.%С(h) – LEL of a component , % (coefficient),С(h) = 4,4 % – for methane; С(h) = 1,7 % – for propane; С(h) = 1 % – for hexane.

IGM–10–1–XX gas analyzer: Table H.1Control gas mixture No.

Components Measuring component,

vol. (% LEL)

Acceptable tolerance

limit, vol. %


limit, vol. %

Registration number

1 N2 100 - - GOST 9392-742 СН4 – N2 2,2 (50) ±0,25 ±0,04 3883-873 СН4 – N2 3,9 (88) ±0,25 ±0,04 3883-87

IGM–10–2–XX gas analyzer: Table H.2Control gas mixture No.


vol. (% LEL)


limit, vol. %


limit, vol. %

Registration number

1 N2 100 - - GOST 9392-742 С3Н8 – N2 0,85 (50) ±0,05 ±0,015 5328-903 С3Н8 – N2 1,5(88) ±0,1 ±0,05 ЭМ 06.01.648


IGM–10–3–XX gas analyzer:

Table H.3

Control gas mixture No.


vol. (% LEL)


limit, vol. %


limit, vol. %

Registration number

1 N2 100 - - GOST 9392-742 С6Н14 – N2 0,25 (25) ±0,025 ±0,010 5322-903 С6Н14 – N2 0,45 (45) ±0,025 ±0,010 5322-90

IGM–10–4–XX gas analyzer:Table H.4Control

gas mixture

No.

Components Measuring component, vol. (% LEL

Acceptable tolerance limit,

vol. %

Acceptable tolerance limit,

vol. %

Registration number

1 N2 100 - - GOST 9293

2 СО2 – N2 1,0 ±0,1 ±0,029741-2011(06.01.054)

3 СО2 – N2 1,8 ±0,1 ±0,029741-2011(06.01.054)

4 СО2 – N2 5,0 ±0,5 ±0,049742-2011(06.01.064)

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