Monmouth Scientific PCR650, Руководство по эксплуатации и техническому обслуживанию

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If the night door is removed during the UV cycle, the function will be cancelled.
The UV light will switch off, the fan and fluorescent light will switch on and the
cabinet will return to normal mode ready for use.
UV TIMER ALARM
The UV timer is pre-set to alarm after a 1000 hrs of tube operation. The tube
should be replaced at this interval. Although the blue light will still be visible the
UV power from the tube will be diminished.
When the tube operation exceeds the pre-set limit, during a UV cycle an audio
beep will be observed every minute.
To reset the alarm timer, switch the cabinet off, press and hold the “LIGHT “
and the “ UV “ button and switch the cabinet on again. When an audio beep
sounds release the buttons. The counter will be reset and the system return to
normal mode.
LOW AIRFLOW ALARM
The airflow is continuously monitored while the cabinet is running. An audible
alarm will sound if the airflow drops below a preset level and the red low airflow
warning light will flash on the control panel. This is an indication that the Pre-
Filter requires replacement – see section 4. If changing the pre-filter does not
cancel the alarm the cabinet requires re-calibration or a new main HEPA filter.
SYSTEM MONITOR
The UV timer control circuit has a monitoring component which will indicate a
system failure. All red warning lights will flash on and off, a continuous audio
alarm will sound and the fluorescent light will be switched off.
If this occurs the cabinet is unsafe to use. Contact Monmouth Scientific for
further advice.
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