Supervision - Alarm; Pir Sensor - Labconco ReVo User Manual

In Service mode the following can be adjusted:
Airflow speeds downflow and exhaust through 2 air flow sensors.
•
The setting and calibration of the Alarms: Analogue air flow sensors or pressostats.
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The configuration of the cabinet options: UV–light, light mode setting, electrical outlets, gas
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resettable valves, PIR sensor.
External control setting: Output 0-10 VDC to volume gauge, external blower dampers or CTS,
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input from external blower or CTS or pressure gauge mounted in the exhaust channel.
• Decontamination through H
6.3 Supervision – Alarm
The cabinet safety is constantly supervised so that any deviation from safe conditions or any fault in
the supervision system will be indicated immediately.
Safe conditions are indicated by a green LED light in the button for fan at normal velocity. Unsafe
conditions will be indicated both acoustically and visually by red flashing LED light.
The alarm will be initiated if:
The vertical air velocity inside the work area is outside the limits.
•
The air volume exhausted is below the limits.
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• The fan is running at reduced velocity.
After a power failure AND on normal start-up.
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Optional 3rd sensor: A sensor mounted in the exhaust channel.
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By activating the alarm (button 3) when the cabinet runs at reduced speed the red LED will change
from flashing to constant light.
The alarm will be deactivated when the fan is running at normal velocity, all conditions are safe, or
the cabinet is switched off.
(The whole display can be flashing if there is an alarm – this setting is done as a default in alarm
setting).
6.4

PIR sensor

If the operation of the cabinet must be automatic – i.e. the cabinets is ready to work when the
operator sticks an arm in the work chamber.
The purpose of the application of the PIR sensor is to save energy when the cabinet is not in active
use, either during the working day or overnight. It has to be made very clear, that the cabinet does
not offer protection for product or operator while running in NightSmart. If the NightSmart option is
activated, the cabinet will not comply with GMP. The NightSmart is ideal for keeping the cabinet
clean during downtime. The cabinet should not run in NightSmart with product in the chamber.
One of the risks while running in NightSmart is that the air barrier is easily broken by external
influences like doors opening and movement in front of the cabinet. To minimize this risk, the
following sequence has been implemented in the control system:
O , Chlorine Dioxide, or Formalin.
2 2
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