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668D-05-1 | Compact differential pressure transmitter | 4 to 20 mA | 0 to 2.5" w.c. | Dwyer

Compact differential pressure transmitter, 4 to 20 mA, 0 to 2.5" w.c.

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Instruction Manual Series 668B/D Catalog Page More Info

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Compact differential pressure transmitter | 4 to 20 mA | 0 to 2.5" w.c.

Series 668B/D Compact Differential Pressure Transmitters

Ranges from 0.1 to 100 in w.c., Overpressure Protection to 15 psig, ±0.8% Accuracy

Our low cost Series 668B/D Compact Differential Pressure Transmitters are capable of sensing differential gage pressure with ±0.8% FS accuracy, and converts this pressure difference to a proportional high level analog output for both unidirectional and bi-directional pressure ranges. These transmitters can withstand up to 15 psig overpressure with no damage to the unit. The compact, lightweight design makes installation simple and easy. Units are protected against incorrect wiring, and include a protective terminal cover.

Calibration Option available under Accessories.

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Product Applications

HVAC and VAV control
Clean rooms and isolation rooms
Duct static pressure measurement

Protection from 15 psi overpressure & incorrect wiring
High accuracy at low pressure ranges
Two package selections allows easy device mounting to best fit application pressure connections

Specifications

Series: 668B/D Compact Differential Pressure Transmitters
Category/Type: Pressure
Type: Differential Pressure
Series: 668B/D Compact Differential Pressure Transmitters
Service: Air and non-conductive gases.
Accuracy: ±0.8% FS.
Temperature Limits: Operating: 0 to 170°F (-18 to 77°C); Storage: -40 to 185°F (-40 to 85°C).
Pressure Limits: 15 psig (1.0 bar).
Thermal Effects: ±0.03% FS/°F (±0.054% FS/°C).
Compensated Range: From 40 to 170°F (4.4 to 77°C).
Power Requirements: 12 to 32 VDC.
Output Signals: 4 to 20 mA (2-wire); 0 to 10 VDC (3-wire); or 0 to 5 VDC (3-wire).
Zero Adjustment: Accessible under the small terminal cover.
Electrical Connection: Terminal strip.
Process Connection: 3/16" OD barbed brass for 1/8" ID push-on tubing.
Enclosure: Stainless steel and PC+ABS alloy; UL 94 V-0 rated.
Weight: 4.0 oz (113 g).
Agency Approvals: CE.