Series AT1ADPS ATEX/IECEx Approved ADPS Adjustable Differential Pressure Switch

The ADPS in Flame-Proof Enclosure

This Series is no longer available, please see Series AT-ADPS for the suggested replacement.

Please see Series ADPS for non-ATEX/IECEx approved.

California Residents:  Click Here for Proposition 65 WARNING.


Air and non-combustible, compatible gases.
Wetted Materials:
Diaphragm material: Silicone; Housing material: Switch body: PA 6.6 and POM; Cover: Polystyrene; Brass or SS depending on pressure connections chosen.
Temperature Limits:
Process and ambient temperature from -4 to 185°F (-20 to 85°C)
(Note: Product temperature limits differ from case).
Pressure Limits:
40 in w.c. (10 kPa).
Switch Type:
Electrical Rating:
Max. 1.5 A/250 VAC, max. switching rate: 6 cycles/min.
Set Point Adjustment:
Hand knob on pressure switch inside case. (De-energize before opening case).
Mounting Orientation:
Vertically, with pressure connections pointing downwards.
Mechanical Working Life:
Over 106 switching operations.
Enclosure Rating:
IP66. IP65 with option OPV, overpressure relief valve.
Housing Material:
Texture epoxy coat RAL7038.
Pressure Connections:
1/8" NPT female brass (SS optional). In presence of acetylene it is necessary to use SS.
Electrical Connections:
Two 1/2" FNPT. Cable gland not included.
7 lb (3.2 kg).
ATEX Certificate:
BVI 14ATEX0072.
Agency Approvals:
ATEX Compliant CE 1370 Ex II 2G Ex d IIC T6 Gb / II 2D Ex tb IIIC T85°C Db, -60°C=Tamb=+60°C IECEx Compliant: Ex d IIC T6 Gb / Ex tb IIIC T85°C Db

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