Bio-rad Model EP-1 Econo Pump Manual do Utilizador descarregar pdf (Página 21)

Section 9

Troubleshooting

Problem Possible Cause Solution

Pump displays Power surge or 1. Turn the power switch off.

"OUT" brownout 2. Press and hold down the

down arrow key and the CAL

key simultaneously while turning

the power switch on. This will

reset the pump. If the pump was

previously calibrated you will

have to recalibrate it.

Pump displays Power outage If you wish to continue a run in

"FAIL" progress, press program run key.

Otherwise, press the run/stop

key.

Pump will not run No power Verify that powercord is plugged

(no LEDs lit) in and the power switch is turned

on.

Fuses Check that proper fuses are

installed and intact.

Insure that the calibration indica-

torlight is not flashing. For pump

to run, this light must either be

off or steadily lit.

Liquid remains Platen not adjusted Platen too loose. Turn platen

stationary in tubing screw clockwise just until liquid

begins moving within tubing.

Clogged tubing, Check tubing, fittings, and valves

valves, or fittings for obstructions.

Damaged tubing Check pump tubing for damage.

Replace damaged tubing.

Flow rate not Pump tubing Replace tubing.

consistent damaged or worn out

Platen adjustment Adjust platen.

incorrect

Wrong tubing size Re-select tubing size on front

selected panel of pump.

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Bio-rad Model EP-1 Econo Pump Manual do Utilizador Página 21