Dwyer - Differential Pressure Transmitter, Series 668

Brand: Dwyer
Model No: Series 668

$0.00

The low cost SERIES 668 Differential Pressure Transmitter is capable of measuring low pressures with a ±1% accuracy - ideally suited for proper building pressurization and air flow control. Transmitters can withstand up to 10 psig overpressure with no damage to the unit. Variable capacitance sensor design provides excellent sensitivity and long-term stability. Compact, lightweight design makes installation simple and easy. Units also feature reverse-polarity protection.

Product Applications

Variable air volume systems
HVAC
Building management

Features

Good accuracy at low pressure ranges provides exceptional value for ensuring control and minimizing costly out of specification conditions
High overpressure rating eliminates possible damage to unit reducing unnecessary service time

Specifications

Service	Air and non-conductive gases.
Accuracy	±1% FS (RSS), (includes non-linearity, hysteresis, and non-repeatability).
Temperature Limits	Operating: 0 to 150°F (-18 to 65°C), Storage: -40 to 185°F (-40 to 85°C).
Pressure Limits	10 psig (0.69 bar).
Compensated Temperature Range	0 to 150°F (-18 to 65°C).
Thermal Effects	0.033% FS/°F (0.18% FS/°C).
Supply Voltage	12 to 30 VDC.
Output	4 to 20 mA, 2-wire.
Zero and Span Adjustment	±1 mA, non-interactive.
Response Time	<60 msec.
Loop Resistance	0 to 800 Ω.
Electrical Connection	Terminal strip.
Pressure Connection	3/16" OD fitting for 1/4" ID tubing.
Housing	Fire retardant glass filled polyester.
Weight	3 oz (85 g).
Agency Approval	CE.