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Dwyer Series 1950 Explosion-Proof Differential Pressure Switch

SKU · 37048 · Series 1950 · Бренд: Dwyer Instruments

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Ключевые параметры

Measuring range

Setpoint models from 0.07–0.15 in w.c. up through 4–20 in w.c.; 1950P models 0.5–50 psid

Accuracy

Repeatability governed by model deadband tables (see Bulletin E-57 / DS)

Output

SPDT switch (common / NO / NC screw terminals)

Process connection

1/8 in female NPT high and low pressure ports

Electrical connection

1/2 in female NPT conduit

Approvals

UL; CSA; FM; CE

Параметр	Значение
Measuring range	Setpoint models from 0.07–0.15 in w.c. up through 4–20 in w.c.; 1950P models 0.5–50 psid
Accuracy	Repeatability governed by model deadband tables (see Bulletin E-57 / DS)
Output	SPDT switch (common / NO / NC screw terminals)
Process connection	1/8 in female NPT high and low pressure ports
Electrical connection	1/2 in female NPT conduit
Approvals	UL; CSA; FM; CE
Mounting	Diaphragm in vertical position; two mounting holes on 4-7/8 in BC
Setpoint	External screw adjustment on housing top; approximate deadbands per model chart
Electrical Rating	15 A @ 125/250/480 VAC; 1/8 HP @ 125 VAC; 1/4 HP @ 250 VAC (mica/phenolic silver)
Service	Air and non-combustible compatible gases only (use 1950G for combustible gases)
Enclosure Rating	NEMA 3 (IP54) weatherproof; NEMA 7 and 9 explosion-proof
Temperature Limits	−40 to 140 °F (−40 to 60 °C); model-specific limits for 1950P-8/15/25/50 and 1950-02
Pressure Limits	Continuous: 1950 in-w.c. models 45 in w.c.; 1950P 35 psi (1950P-50: 70 psi); surge limits per DS
Weight	3.25 lb (1.5 kg); 1950-02 about 4.4 lb (2 kg)