Air extraction monitoring system, ex-proof, from 25 m³/h
Item number: 205720W
Explosion protected pressure switches for monitoring technical ventilation
For notifying a fault in the air extraction system (not in the event of a power cut!)
With the new version of HSG71 in 2021, technical ventilation must be equipped with air extraction monitoring (e.g. flow monitors) regardless of the air exchange rate.
Differential pressure switch for volume flow control via measurement of differential pressure
For gas, mist, vapour and dusts in zones 1, 2, 21, 22 (non-aggressive media)
Sensor as piezo pressure transmitter
Switching delay to avoid error messages
Default setting 120 sec
Ex proof in accordance with ATEX II2(1)G Ex emb[ia] IIC T6 / II2(1)D Ex tD [iaD] A21 IP66 T6
Audible signal in switch cabinet when the required air extraction volume is not met (not in the event of a power cut)
Notice: When sited indoors, the customer must ensure the air extraction is channelled to a safe location outside. After installation of the extraction ducting the pressure conditions will change and the extraction volume flow will need to be set again by the customer. Our Service team would be happy to prepare a quotation for this readjustment operation.
Air extraction monitoring for hazardous materials stores from 25 m²
Explosion protected pressure switches for monitoring technical ventilation
For notifying a fault in the air extraction system (not in the event of a power cut!)
With the new version of HSG71 in 2021, technical ventilation must be equipped with air extraction monitoring (e.g. flow monitors) regardless of the air exchange rate.
Differential pressure switch for volume flow control via measurement of differential pressure
For gas, mist, vapour and dusts in zones 1, 2, 21, 22 (non-aggressive media)
Sensor as piezo pressure transmitter
Switching delay to avoid error messages
Default setting 120 sec
Ex proof in accordance with ATEX II2(1)G Ex emb[ia] IIC T6 / II2(1)D Ex tD [iaD] A21 IP66 T6
Audible signal in switch cabinet when the required air extraction volume is not met (not in the event of a power cut)
Notice: When sited indoors, the customer must ensure the air extraction is channelled to a safe location outside. After installation of the extraction ducting the pressure conditions will change and the extraction volume flow will need to be set again by the customer. Our Service team would be happy to prepare a quotation for this readjustment operation.
Air extraction monitoring for hazardous materials stores from 25 m²
Technical data
Product range
WHG/MC-Vario
Material
Steel
Included in delivery
-Differential pressure switch ex Bin-P500-2 -Silicone hose -Pipe bend -Discharge connection piece -Small parts (screws etc.)
Weight [kg]
1,7
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Air extraction monitoring system, ex-proof, from 25 m³/h