Kussmaul Electronics 091-205 - Manual (Page 2)

INTRODUCTION
The Model 091-205 AUTO PUMP TESTER is a ½ gallon tank with a pressure
gauge, bleed valve and air line that acts as a reservoir that may be pressurized by
an Auto Pump.
In order to test the AUTO PUMP it is necessary to connect the pump to an air
receiver and run the pump. This permits evaluating the run time required to pump
up a given volume and to check the set points of the pressure switch. The AUTO
PUMP TESTER contains a bleed valve which may be opened to reduce the tank
pressure and closed to measure the time required to reach the pressure switch cut-
out pressure.
PUMP TEST PROCEDURE
1. Open the bleed air valve on the Tester.
2. Connect the pump to be tested to the air inlet hose on the Tester.
3. Apply power to the pump and observe that the motor runs.
4. Close the bleed air valve and measure the time required for the tank pressure
to rise to either 90 psi or till the pressure switch interrupts the power.
5. Open the bleed air valve to reduce the tank pressure to the point at which the
pressure switch closes.
6. Close the bleed air valve to permit the tank pressure to build up.
7. Measure the time required for tank pressure to attain the switch cut out point.
8. Repeat the bleed – pump up cycle to verify the pump time required.
9. Adjust the pressure switch as required, cycling the pump off-on to verify
pressure switch operation