Dwyer Instruments DA-31-2-9 | Pressure Switch | 10-300 PSIG | Lower Mount | Brass | 120-240V AC/DC | ...

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Part Number : DA-31-2-9

Consumers claim that the best pressure switches available are the Series DA/DS Bourdon Tube Pressure Switches. One of the largest ranges of pressure switches available worldwide is the Mercoid DA/DS Series. The sensitivity and repeatability of the DA/DS Series are exceptionally excellent. Two external modifications are available for the DA Models: one for adjusting the operating point at high pressure and the other for adjusting the operating point at low pressure. Over the whole range, the deadband—the difference between the high and low setpoints—can be changed. Only one external adjustment is available for establishing the operating point on the DS Models. We have the snap action switch available for mercury-free switches. There is also a mercury switch that is hermetically sealed.

Specification
Features
Catalog

Specifications

Details

Series

DA/DS BOURDON TUBE PRESSURE SWITCHES

Repeatability

±1% of full operating range; ±1.5% on DS-7300 models.

Weight

General purpose: 4 lb (1.8 kg). Weatherproof: 6 lb (2.7 kg). Explosion-proof: 8 lb (3.5 kg).

Type

Pressure Switch

Material

Wetted: Brass; 403 SS; or 316 SS.

Maximum operating temperature

180°F (82°C)

Maximum Operating Pressure

Maximum pressure of the operating range

IP PROTECTION RATING

General purpose; weatherproof or explosion-proof.

Type

Switch: SPST mercury switch; SPDT mercury switch; SPDT snap switch.

Connection

Electrical: Screw terminal

Horizontal/ Vertical

Vertical

Set Point

Thumbscrew

Approvals

CSA; FM; UL

Dwyer Instruments DA-31-2-9 | Pressure Switch | 10-300 PSIG | Lower Mount | Brass | 120-240V AC/DC | 1/4" NPT M Kuwait

Part Number : DA-31-2-9

Sauermann Flush-mount multifunction pressure transmitter | Range -100 to +100 Pa

Part Number : CPE 310-S

Sauermann Flush-mount multifunction pressure transmitter | Range -100 to +100 Pa Kuwait

Part Number : CPE 310-S

Sauermann Flush-mount multifunction pressure transmitter | Range -1000 to +1000 Pa

Part Number : CPE 311-S

Sauermann Flush-mount multifunction pressure transmitter | Range -1000 to +1000 Pa Kuwait

Part Number : CPE 311-S

Sauermann Large display multifunction transmitter | 24 Vac power supply

Part Number : CA310-B

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Part Number : CA310-H

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Part Number : C310-BO

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Part Number : C310-HO

Winters LE150R11 | Pressure Transmitter | LE1 SERIES | 0 - 2.5 BAR, 4 - 20MA, MICRO-DIN, 304 SS | 1/4'' NPT, 0.5% ACCURACY

Part Number : LE150R11

Winters LE1150R11 | Pressure Transmitter | LE1 SERIES,0-10 BAR, 4 - 20MA | MICRO-DIN, 304 SS, 1/4'' NPT, 0.5% ACCURACY

Part Number : LE1150R11

Winters LE1300R11 | Pressure Transmitter | LE1 SERIES,0-25 BAR, 4 - 20MA | MICRO-DIN, 304 SS, 1/4'' NPT, 0.5% ACCURACY

Part Number : LE1300R11

Winters LE1500R11 | Pressure Transmitter | LE1 SERIES, 0 - 40 BAR, 4 - 20MA | MICRO-DIN, 304 SS, 1/4'' NPT, 0.5% ACCURACY

Part Number : LE1500R11

Winters LE11000R11 | Pressure Transmitter | LE1 SERIES,0-60 BAR, 4 - 20MA | MICRO-DIN, 304 SS, 1/4'' NPT, 0.5% ACCURACY

Part Number : LE11000R11

Winters LE12000R11 | Pressure Transmitter | LE1 SERIES, 0 - 100 BAR, 4 - 20MA | MICRO-DIN, 304 SS, 1/4'' NPT, 0.5% ACCURACY

Part Number : LE12000R11

Winters LE16000R11 | Pressure Transmitter | LE1 , 0 - 400 BAR, 4 - 20MA | MICRO-DIN, 304 SS, 1/4'' NPT, 0.5% ACCURACY

Part Number : LE16000R11

Differential pressure switches, Setting range 20-200 Pa

Part Number : Si-DPMS-1

Differential pressure switches, Setting range 50-500 Pa

Part Number : Si-DPMS-2