Labconco XPert Filtered Balance Stations 3962622 User Manual

Page 65

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Chapter 8: Troubleshooting

Product Service 1-800-522-7658

PROBLEM

CAUSE

CORRECTIVE ACTION

Lights do not work.

Lamp not installed
properly.

Inspect lamp installation.

Lamp wiring
disconnected.

Inspect lamp wiring.

Defective lamp.

Replace lamp.

Light switch is
defective.

Replace light switch.

Defective electronic
ballast.

Replace ballast.

Airflow monitor malfunction.

No power.
No lights.
No display.

Power cable to circuit board is disconnected
and needs to be connected. Sensor cable
needs to be connected. Power supply is not
plugged into proper voltage; plug in power
supply. Verify that all airflow monitor
interface cables are connected. Check fuses
on enclosure.

No audible alarm.

Alarm has been temporarily silenced using
“SILENCE ALARM” or “enter” buttons.

Wrong alarm set point.

Airflow monitor was not properly adjusted.
Repeat calibration steps outlined in this
manual in Chapter 6 or in the supplied
Digital 1000 Monitor Manual.

Constant audible alarm.

Check airflow and calibration of airflow
monitor. See Chapter 6.

Continuous alarm.

Check the face velocity of the enclosure as
the airflow of the system may have changed.
If incorrect, adjust the speed control to
increase face velocity. The HEPA filter may
have become loaded. If face velocity is
correct, calibrate the airflow monitor
outlined in this manual in Chapter 6.

Monitor alarms; air way
to airflow monitor
sensor is blocked by
insects, dust or debris.

Lightly clean the airway with clean air. Be
careful not to touch sensitive electrical
components.

Audible disable will not
stay operational.

An alarm condition must be continuously
present before the audible alarm can be
silenced. If flow conditions fluctuate near
the alarm set point, the airflow monitor will
automatically reset it. Action should be
taken to bring the enclosure airflow into
proper operating parameters or adjust the
alarm set point lower.

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