Features
- Air and non-conductive gases
- ±1% FS accuracy
- Operating temp: 0 to 150°F
- 10 psig over pressure
- 4 to 20 mA, 2-wire output
- 3/16in OD fitting for 1/4in ID tubing pressure connection
The Dwyer 668 Differential Pressure Transmitter is capable of measuring low pressures with a ±1% accuracy.
It is 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.
Applications for the 668 include:
Variable air volume systems
HVAC
Building management
