1, GM series diaphragm metering pump not on the amount
1) The liquid in the reservoir is too low; add the liquid to the reservoir.
2) Check valve damaged or contaminated; cleaned or replaced.
3) out of the tube blocked; clear the pipeline.
4) liquid freeze; dissolve the entire dosing system solution.
5) circuit fuse fuse; replace the fuse;
6) The thermal overload relay jumps open in the motor starter; reset the thermal overload device.
7) Cable disconnected; check location and repair.
8) the voltage is too low; test and adjust.
9) Pump is not filled with liquid. Open the outlet valve to pump liquid to empty.
10) Stroke set to zero position; readjust stroke setting.
2, GM metering diaphragm pump out of liquid volume
1) The stroke setting is incorrect; readjust the stroke setting.
2) The pump speed is wrong; Check whether the power supply voltage and frequency are consistent with the motor brand name.
3) lack of liquid absorption; increase the suction pipe diameter or increase the suction head.
4) Pipette leaks; repair pipettes.
5) Suction too high; rearrange the device to reduce suction.
6) liquid close to the boiling point; cooling liquid or increase suction head.
7) leakage of liquid lines or safety valves; repair or replacement of safety valve.
8) liquid viscosity is too high; reduce viscosity.
9) Check valve seat worn or contaminated; cleaned or replaced.
3, GM metering diaphragm pump fluid volume instability
1) Pipette missing; service pipette.
2) Leakage of safety valve; repair or replacement of safety valve.
3) liquid close to the boiling point; cooling liquid or increase suction head.
4) Check valve seat worn or contaminated; cleaned or replaced.
5) The line filter is clogged or contaminated; clean the filter.
4, GM metering diaphragm pump motor and pump overheating
1) Operating temperature of the motor and pump body is often too hot to touch, but should not exceed 93 ° C.
2) The power does not meet the electrical specifications of the motor; make sure the power and motor match correctly.
3) The pump is operating at more than rated capacity; reduce the pressure or stroke speed.
4) Lubricate the pump incorrectly; drain the engine oil and refill with the recommended amount of lubricant.
5, gear noise is too large
1) backlash is too large; replace the gear
2) bearing wear; replace the bearing
3) Lubricating oil label incorrect or not enough; replace or supplement the lubricating oil.
6, the bottom of the pump head material leak detection; diaphragm rupture; replace the diaphragm.
7, the bottom of the pump head detection hole oil leakage; seal rupture; replace the oil seal
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