Control unit for monitoring of ventilation.

Pressure alarm with internal pressure switch, change over relay and battery backup of 6 - 8 hours in case of power failure.

The pressure alarm is intended for control of ventilation plants, but can also be used for e.g. control of local exhaust ventilation.

If the pressure drops, an integrated audible and red light alarm is activated. The light alarm will be deactivated when the pressure returns to normal level. It is possible to mute the audible alarm by pressing the button on the front, and it will not revert to active mode until the pressure has returned to normal level. A green light on the front is active when power is connected.

For proper functioning of the pressure alarm, power must be connected to clamp L2 from the switch operating the ventilation plant. Clamp L1 must be connected to mains supply which only is disrupted in case of power failure.

When the ventilation plant - and at the same time also the pressure alarm - is turned on - the red light alarm will be activated (low pressure) there as the audible alarm will only be activated if normal pressure is not reached after approx. 30 seconds.

Tariff Number 90268020
EAN-Number 5703471491456
Size (HxWxD) 120x122x60mm
Enclosure IP 22
Supply Voltage 230VAC
Frequency 50 - 60Hz
Max. tolerance of supply 10%
Output Power (W / VA) 3.5-5W
Ambient temperature 0 - 50°C
Relay output 250V 1A

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