Dwyer 604A Differential Pressure Transmitter

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604A Differential Pressure Transmitter

Specifications/Part Numbers

Ranges down to 0.1"WC

2, 3 or 4 wire operation

Pressure rated to 30 PSIG

The Dwyer Series 604A differential pressure transmitter offers very
low ranges down to 0-0.1" w.c. yet withstands continuous pressure to 30
PSIG. The tough filled Nylon housing features simple surface mount-
ing arrangement and barbed connections. The units are compact and
lightweight yet provide overall accuracy of ±2%. Output signal is 4-20
mA. Zero and span adjustments plus terminal block connections are
easily accessible but protected in auxiliary housing.

Specifications

Maximum Pressure:

50 PSIG surge; 30 PSIG continuous to either pressure connection

Media Compatibility:

Air and non-combustible, non-corrosive gases

Power Supply:

13-35 VDC; 2, 3 or 4 wire
18-26 VAC; 4 wire

Connections:

4 screw terminal block

Output Signal:

4-20 mADC (limited at 38 mA DC)

Loop Resistance:

DC: 0-1100 ohms
AC: 0-1130 ohms

Current Consumption:

DC: 38 mA maximum
AC: 76 mA maximum

Construction:

Mineral and glass filled nylon housing, high impact acrylic cover, silicone rubber diaphragm

Weight:

6 oz. (170 g)

Span and Zero adjustments:

Protected potentiometers

Pressure Connections:

Barbed, for 3/16" I.D. tubing

Performance:
(at 70°F/21°C)

Zero Output:	4 mA DC
Full Span Output:	20 mA DC
Accuracy: (includes linearity, hysteresis, repeatability)	±2% of full span output
Span & Zero:	Adjustable to 0.05% of full span
Warm up Time:	10 minutes
Thermal Errors:	±1%/50°F, typical

Operating Temperature:

20 to 120°F (-7 to 49°C)

Standard Accessories:

Mounting Screws (2); #10 x 1" long pan head sheet metal screws.

Part Numbers

Model Number	Range (inches of water) as stocked	Minimum Range	Maximum Range
604A-0 604A-1 604A-2 604A-3	0-0.5 0-2.0 0-10 0-50	0-0.1 0-0.5 0-2.0 0-15	0-1.0 0-4.0 0-20 0-120

Contact Us

John Sherman Agencies Ltd.
1641 Venables Street
Vancouver, British Columbia, Canada
V5L 2H1

Phone: 604-254-9622
Fax: 604-254-3123

e-mail: info@johnsherman.com