Sump and Sewage Pump Manufacturers Association · Sump and Sewage Pump Manufacturers Association...
Transcript of Sump and Sewage Pump Manufacturers Association · Sump and Sewage Pump Manufacturers Association...
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SSPMASump and Sewage Pump Manufacturers Association
Since 1956, we are a North American trade organization of sump, effluent, and sewage pump manufacturers and their suppliers.
Working together to:
□ train wastewater and plumbing professionals, and
□ create product performance and safety standards.
SSPMA members collaborate with each other and government regulators to educate consumers and professionals on the latest products, their
application, proper sizing techniques, safe installation and use, and good maintenance practices.
www.SSPMA.org 1
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Pumps bearing the “SSPMA-Certified” seal have been tested by the member manufacturer in accordance with SSPMA
Industry Standards.
The Standards are designed to provide accurate performance data for sump, effluent and sewage pumping equipment, to
assist in their proper application and selection.
www.SSPMA.org 2
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SSPMA MEMBERSBarnes Pumps / Crane Pumps & Systems
Champion Pump Company, Inc.
Eco-Flo Products Inc. / Ashland Pump Company
Franklin Electric / Little GiantGlentronics, Inc.
Goulds Water Technology, a xylem brand
Liberty Pumps
Pentair Water
Superior Pump Company
Zoeller Companywww.SSPMA.org
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SSPMA ASSOCIATE MEMBERSAK Industries
Alderon Industries
John Crane, Inc.
LevelGuard / Touch Sensor Technologies
See Water, Inc.
SJE-Rhombus
Topp Industries, Inc.
www.SSPMA.org 4
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Troubleshooting Pumps, Panels, Switches With Digital
Multimeters
Bo Gell
Product Manager – Wastewater
Goulds Water Technology
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• Safety
• Digital Multimeters
• Tests
• Line To Line Resistance, Insulation Resistance, Capacitor, Amps, Voltage
Agenda
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Warning
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Electrical Shock
Lethality due to electric
shock is dependent on:
Current
Duration
Pathway
Voltage
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Electrical Shock
Body (skin) resistance can vary
from 100,000 ohms to 500 ohms
depending on moisture and skin
conditions. Cardiac arrest can
occur with a current as little as
60 mA.
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Effects Of Current In The Human Body
WARNING – Graphic Photo On Next Slide!
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Only 20% of electric shock patients die from the effects of shock, the
rest die from internal and external burns
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Personal Safety Equipment
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CAT ratings established by IEC
determines the maximum voltage
spike an instrument can withstand
CAT Ratings - Meters
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CAT Ratings - Meters
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Troubleshooting Basics
Never Overlook The Obvious
Power on?
Check connections
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Look For The CAUSE Of Failure, Rather Than Treating The EFFECT
IE – Replacing Control Box
Bad components, or is something causing the component to fail?
Troubleshooting Basics
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Buy A Quality RMS Multimeter
AC/DC Voltage and Amperage, Resistance, Frequency, Capacitance, Insulation resistance
Know Your Meter! (Read the manual)
Measure Voltage & Amperage – Write Down
Line to line voltage
Line to ground voltage
Amperage – Start, Run, Winding?, Based on performance
Amperage changes with voltage
Take Digital Photo Of Installation And Send
Troubleshooting Basics
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Tools
Quality Multimeter Tech Support Website/App
MAID, IOM, SM
Simpson 372
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Simpson 372
The Simpson Ohmmeter Model 372 Series 3 is a six range instrument. It measures values from 0.2 to 50 M with an accuracy of ±3% of arc.
For best results, select the range in order that the attained readings are near mid scale.
Units can be repaired and or calibrated.
(May provide new leads)
Simpson Electric
National or local service centers
Older units can be retrofitted with replacement battery.
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Do not use the Meter or test leads if they appear damaged, or if the Meter is not operating properly. If in doubt, have the Meter serviced.
Always use the proper terminal, switch position, and range for measurements before connecting Meter to circuit under test.
Verify the Meter’s operation by measuring a known voltage.
Do not apply more than the rated voltage as marked on the Meter, between the terminals or between any terminal and earth ground.
Use caution with voltages above 30 V ac rms, 42 V ac peak, or 60 V dc. These voltages pose a shock hazard.
Replace the battery as soon as the low battery indicator appears.
Disconnect circuit power and discharge all high-voltage capacitors before testing resistance, continuity, diodes, or capacitance.
Do not use the Meter around explosive gas or vapor.
When using the test leads, keep your fingers behind the finger guards.
Remove test leads from the Meter before opening the Meter case or battery door. Never operate the Meter with the cover removed or the battery door open.
Comply with local and national safety requirements when working in hazardous locations.
Use proper protective equipment, as required by local or national authorities when working in hazardous areas.
Avoid working alone.
Use only the replacement fuse specified or the protection may be impaired.
Check the test leads for continuity before use. Do not use if the readings are high or noisy.
Meter Guidelines
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Fluke 1587 - Insulation Multimeter
Fluke 1587
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RMS VoltageAC voltage rises positive and falls negative 60 times per second, so how do you state its value? Industry practiceis to quote the RMS voltage. RMS is a value 70.7% of the peak positive voltage. An RMS voltage will produceexactly the same heating rate in a resistive load as a DCvoltage of the same value. RMS is the acronym for themathematical steps used in its derivation. Square the voltage at all moments in an AC cycle, take the mean ofthese, and then take the square root of the mean. For reasons lost in obscurity, the steps are stated in reversesequence, Root Mean Square.
RMS
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The 1587 is equipped with an ac low-pass filter. When
measuring ac voltage or ac frequency (B), press the blue
button to activate the Low-Pass Filter function (K). The
Meter continues measuring in the selected ac mode, but
now the signal diverts through a filter that blocks unwanted frequencies above 800 Hz. The low pass filter can improve measurement performance on composite sine waves that are typically generated by inverters and variable frequency motor drives.
Autoranging is not available with the Low-Pass filter function.
Lo-Pass Filter
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To alert you to the presence of a potentially hazardous voltage, when the Meter detects a voltage ≥ 30 V or a voltage overload (OL), the lightning symbol is displayed.
Unsafe Voltage
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Fuse
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To test the batteries, press HOLD and turn to the rotary switch to the INSULATION position. This initiates a battery test and displays the charge level of the battery.
Testing The Batteries
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Resistance
Due to the inability to ‘zero out’
the digital meter, check
resistance of the leads and
subtract from your resistance
readings
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VARI
Power On Voltage
Amperage
Power Off Resistance
Insulation
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AC Voltage
Input -
Typical Allowable Range ±10%
Low Voltage = Higher Amps
Test Under Load
Line To Line
Line To Ground
Output On Drive –
Varies
Need Lo Pass Filter To Accurately Measure
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Voltage
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AmperageWhat Is It?
Hydraulic AnalogyVoltage≈ Pressure
Current ≈ Flow
Resistance ≈ Friction Loss
What It Means –Currents above these values indicate system problems.
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AmperageWhat Are Good Values?
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AmperageHow Do I Measure It?
Load/Output/Pump
Typically Use Current Clamp
FLA, SFA, LRA
Max/Min/Avg
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High Amps?
• Input Voltage
• Impeller
• Motor
• Duty Point
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Resistance is simply that – similar to friction loss in a piping system – too much resistance generates heat – all motor windings have a specification for winding resistance
What it Means
1. If all ohm values are normal, the motor windings are neither shorted nor open, and the cable colors are correct.
2. If any one ohm value is less than normal, the motor is shorted.
3. If any one ohm value is greater than normal, the winding or the cable is open or there is a poor cable joint or connection.
Winding ResistanceWhat Is It?
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Winding ResistanceWhat Are Good Values?
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Winding ResistanceHow Do I Measure?
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Winding ResistanceIs There Anything Else I Need To Know?
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Insulation Resistance
What Is It?
If motor windings or cable has “leaks” in the insulation, the motor can trip protection like a short circuit.
To properly test wire insulation you “megger”, or test to see if a high voltage will “leak” to ground from the wire/winding.
This is similar to a “hydro” test of a pump system – if the pump seal does not leak at 360PSI, the insulation on the windings is less likely to leak when tested at 500 volts.
The Fluke 1587 can produce as much as 1000 volts (dc) to “megger” motor windings or submersible drop cable.
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Insulation ResistanceWhat Are Good Values?
Based on Simpson 372…
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Insulation ResistanceHow Do I Measure It?
Determine Test Voltage
Test Each Lead To Ground
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Test Voltage
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Test Voltage
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Frequency (Hz)
Used For Drives
Note: Follow direction of arrow on clamp
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Continuity
• Continuity– POWER OFF!
– May be used to identify floats
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Capacitor (Power Off!)
Disconnect and Discharge the capacitor prior to test!
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dc Voltage
Used For Drives With Voltage
Transducers
Output to transducer
Input to drive
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Sump and Sewage Pump Manufacturers Association
This concludes the education portion of this session
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Pumps bearing the “SSPMA-Certified” seal have been tested by the member manufacturer in accordance with SSPMA
Industry Standards.
The Standards are designed to provide accurate performance data for sump, effluent and sewage pumping equipment, to
assist in their proper application and selection.
www.SSPMA.org 50