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This Wet/Wet Differential Pressure Transmitter converts a positive.Refrigeration & HVAC Equipment

This Wet/Wet Differential Pressure Transmitter converts a positive or a positive differential pressure measurement into a standard 4-20 mA output signal. Designed for use as a wet/wet differential pressure transmitter, units can be used to measure gas or liquid pressures compatible with 316/316L stainless steel wetted parts. With an accuracy of ±0.5% FS, the Series 655 Pressure Transmitter can measure 5.0 inches w.c.d (1.24 kPa), with working pressures up to a maximum 100 psi (6.89 bar).

CAUTION: Do not exceed specified supply voltage ratings. Permanent damage not covered by warranty will result. This device is not designed for 120 or 240 volt AC operation. Use only 16 to 35 Vdc.

Features

Wet/Wet Low Differential Pressure
– 0-5" w.c.
Withstands High Pressure
– 100 PSI Maximum Working Pressure
Excellent Wetted Materials
– 316/316L Stainless Steel
External Span And Zero Adjustments
– +/- 10% of span
Highly Accurate
– +/-0.5% Full Scale

Applications

Refrigeration & HVAC Equipment
Chill Water Line Pump Monitoring
Water Filter Monitoring
Process Control

SPECIFICATIONS

Service	Compatible, non-combustible gases & liquids
Wetted Materials	Types 316, 316L SS
Accuracy	+/-0.5% F.S. (Includes linearity, hysteresis & repeatability)
Stability	+ 1% F.S./yr
Temperature Limits	40 to 120°F (4.44 to 48.9°C)
Pressure Limits	100 psi (6.89 bar) continuous; 500 psi (34.5 bar) burst
Thermal Effect	0.025% F.S./¼F (0.045% F.S./°C)
Power Requirements	16-35 VDC (2 wire)
Power Requirements	Output Signal 4 to 20 mA
Zero & Span Adjustments	Accessible Potentiometers
Zero & Span Adjustments	±10% of span
Loop Resistance	DC; 0-1250 ohms maximum
Current Consumption	DC; 38 mA max
Electrical Connections	3 position plastic terminal block
Process Connections	1/4" female NPT
Enclosure Rating	Designed to meet NEMA 4X
Mounting Orientation	Not position sensitive
Weight	1 lb., 11.7 oz. (785 g)

CAT NO.

MODEL

DEscRIPTION

AVAIL

PRICE

DW6551

655-1

Wet/Wet Differential Pressure Transmitter

Yes

1,293,840