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DWYER 685 differential pressure transmitter

The Series 685 Differential Pressure Transmitter is used to measure differential pressure and vacuum. The adjustable pressure range and output signal make it the ideal choice for installers and maintenance professionals. It has a user-configurable response time via a jumper and can be mounted in any orientation. Applications include building automation systems, clean room monitoring, valve and flap control, filter monitoring, and air flow control. It has an adjustable pressure range, a single button to zero, and can be reset to factory settings with a long button press. No additional reference pressure sources or separate calibration devices are necessary.

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Made in USA. brand DWYER, model 685

International delivery to United Arab Emirates, Kuwait, Qatar, Saudi Arabia, Saudi Arabia, Bahrain, Oman and other Middle Eastern countries.
Our warehouses are located in UAE. Delivery to other countries (Europe, North and South America, Asia, Africa) is discussed individually.

Retail price from $112

Available

Available

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Founded in 1931, DWYER manufactures equipment for measurement, conversion and control – pressure, temperature, level, flow.

Advantages

Only the best I&C brands

Our company is a UAE supplier of control and measuring instruments from well-known world brands

Advantages

Discounts for organisations

We sell high-tech equipment at best prices. We provide really advantageous conditions for partners

Advantages

Fast delivery across the Middle East

Supply to United Arab Emirates, Kuwait, Qatar, Saudi Arabia, Bahrain, Oman and other countries

Advantages

Professional advice on device selection

Our specialists are ready to advise you on any technical question. We can find an analogue of any device

Description of DWYER 685

PRODUCT APPLICATIONS

  • Building automation, air-conditioning and clean room technology
  • Valve and shutter control
  • Filter, ventilator and fan monitoring
  • Air-flow control

FEATURES

  • Cost effective and compact device suitable for OEM applications where space, simplicity, and value are key
  • Single button to zero saves maintenance time
  • Factory restore to defaults with a long button press
  • User-adjustable response time provides versatility for many applications

Technical specifications of DWYER 685

  • Service: Air and non-corrosive gases.
  • Sensor Type: Piezoresistive pressure sensor.
  • Output Signal: 2-wire: 4-20 mA; 3-wire: 0-10 V.
  • Supply Voltage: 2-wire: 18-30 VDC; 3-wire: 18-30 VAC/DC
  • Loop Resistance: 2-wire: 500 Ω max; 3-wire: ≥ 1 kΩ (≤ 10 mA)
  • Maximum Current Draw: 2-wire: 21 mA; 3-wire: 40 mA.
  • Accuracy*: ≤ ±0.5% RSS (BFSL), ± 1Pa.
  • Thermal Effects*:  See model-dependent specifications table.
  • Long-Term Stability*: ≤ ±1% RSS per year.
  • Temperature Limits: -4 to 158°F (-20 to 70°C).
  • Humidity Limits: 0 to 95% RH, non-condensing.
  • Response Time: 1 s (default) or 200 ms (user selectable).
  • Pressure Connections: 6 mm hose connection.
  • Electrical Connection: Spring connector for cable and leads up to 1.5 mm² .
  • Cable Conduit: Cap nut conduit, 15 mm (across flats), made of polyamide.
  • Mounting: Screw fastening with sheet metal screws.
  • Housing Material: ABS.
  • Housing Dimensions: Ø 66 x 28 mm.
  • Enclosure Rating: IP54.
  • Weight: 1.6 oz (46 g).
  • Compliance: CE, UKCA.

Accessories for

Photo Model Description
A-360 Aluminum DIN rail - only available in 1 m length (2.8 ft).
A-302F-A 303 SS Static pressure tip with mounting flange, for 3/16" I.D. rubber or plastic tubing. 4" insertion depth, includes mounting screws
A-480 Plastic static pressure tip
A-489 4" 303 SS straight static pressure tip with flange, 1/4" hose barb.
A-685-DIN DIN rail adapter kit for Series 685
SCD-PS 100 to 240 VAC/VDC to 24 VDC power supply

Prices for

Model Description Availability Price Qty Buy
685-00 Differential pressure transmitter, 0-1" w.c., 4-20 mA output Delivery time from 12 weeks from 128$
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685-00-V Differential pressure transmitter, 0-1" w.c., 0-10 V output Delivery time from 12 weeks from 112$
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685-01 Differential pressure transmitter, 0-2" wc, 4-20mA output Delivery time from 12 weeks from 112$
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685-01-V Differential pressure transmitter, 0-2" wc, 0-10 V output Delivery time from 12 weeks from 112$
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685-02 Differential pressure transmitter, 0-3" wc, 4-20mA output Delivery time from 12 weeks from 128$
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685-02-V Differential pressure transmitter, 0-3" wc, 0-10 V output Delivery time from 12 weeks from 112$
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685-03 Differential pressure transmitter, 0-5" wc, 4-20mA output Delivery time from 12 weeks from 112$
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685-03-V Differential pressure transmitter, 0-5" wc, 0-10 V output Delivery time from 12 weeks from 112$
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685-04 Differential pressure transmitter, 0-10" wc, 4-20mA output Delivery time from 12 weeks from 128$
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685-04-V Differential pressure transmitter, 0-10" wc, 0-10 V output Delivery time from 12 weeks from 128$
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685-05 Differential pressure transmitter, 0-15" wc, 4-20mA output Delivery time from 12 weeks from 112$
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685-05-V Differential pressure transmitter, 0-15" wc, 0-10 V output Delivery time from 12 weeks from 112$
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685-06 Differential pressure transmitter, 0-20" wc, 4-20mA output Delivery time from 12 weeks from 128$
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685-06-V Differential pressure transmitter, 0-20" wc, 0-10 V output Delivery time from 12 weeks from 112$
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+
685-07 Differential pressure transmitter, 0-25" wc, 4-20mA output Delivery time from 12 weeks from 112$
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685-07-V Differential pressure transmitter, 0-25" wc, 0-10 V output Delivery time from 12 weeks from 112$
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685-08 Differential pressure transmitter, 0-40" wc, 4-20mA output Delivery time from 12 weeks from 128$
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685-08-V Differential pressure transmitter, 0-40" wc, 0-10 V output Delivery time from 12 weeks from 112$
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685-09 Differential pressure transmitter, 250 Pa, 4-20mA output Delivery time from 12 weeks from 112$
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685-09-V Differential pressure transmitter, 250 Pa, 0-10 V output Delivery time from 12 weeks from 112$
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685-10-V Differential pressure transmitter, 750 Pa, 0-10 V output Delivery time from 12 weeks from 112$
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685-10 Differential pressure transmitter, 750 Pa, 4-20 mA output Delivery time from 12 weeks from 128$
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685-11 Differential pressure transmitter, 1250 Pa, 4-20mA output Delivery time from 12 weeks from 112$
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685-11-V Differential pressure transmitter, 1250 Pa, 0-10 V output Delivery time from 12 weeks from 112$
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685-12 Differential pressure transmitter, 2500 Pa, 4-20mA output Delivery time from 12 weeks from 128$
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685-12-V Differential pressure transmitter, 2500 Pa, 0-10 V output Delivery time from 12 weeks from 112$
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685-13 Differential pressure transmitter, 5000 Pa, 4-20mA output Delivery time from 12 weeks from 112$
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685-13-V Differential pressure transmitter, 5000 Pa, 0-10 V output Delivery time from 12 weeks from 112$
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+
A-302F-A 303 SS Static pressure tip with mounting flange, for 3/16" I.D. rubber or plastic tubing. 4" insertion depth, includes mounting screws Delivery time from 12 weeks from 12$
-
+
A-360 Aluminum DIN rail - only available in 1 m length (2.8 ft). Delivery time from 12 weeks from 11$
-
+
A-480 Plastic static pressure tip Delivery time from 12 weeks from 2$
-
+
A-489 4" 303 SS straight static pressure tip with flange, 1/4" hose barb. Delivery time from 12 weeks from 10$
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+
A-685-DIN DIN rail adapter kit for Series 685 Delivery time from 12 weeks from 14$
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+
SCD-PS 100 to 240 VAC/VDC to 24 VDC power supply Delivery time from 12 weeks from 38$
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+
Expand Table

User Guide and Instruction manual for DWYER 685

You can request the necessary certificates, documentation, instructions and user guide for DWYER 685 using the special form.

You can buy DWYER 685 in UAE at a price starting from 112 $ in «Texair FZCO» by leaving a request on the website, by phone +441225535040 or by email . DWYER 685 price are subject to change depending on exchange rates. We deliver instruments by transport companies in United Arab Emirates, Kuwait, Qatar, Saudi Arabia, Saudi Arabia, Bahrain and other Middle Eastern countries.

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