668C-3

668C-3 is a low cost series 668 differential pressure transmitter. It is capable of measuring low pressures with ±1% accuracy, ideally suited for proper building pressurization and air flow control. Transmitters can withstand up to 10psig 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. Good accuracy at low pressure ranges provides exceptional value for ensuring control and minimizing costly out of specification conditions. Typical applications include variable air volume systems, HVAC and building management.

• Differential pressure transmitter with conduit cover, range from 0-1.0W.C
• Features reverse-polarity protection
• High overpressure rating eliminates possible damage to unit reducing unnecessary service time
• Operating temperature limits from 0 to 150°F (-18 to 65°C)
• Supply voltage range from 12 to 30V DC
• 4 to 20mA, 2-wire output
• Response time is less than 60ms and loop resistance range from 0 to 800 ohm
• Terminal strip electrical connection
• 3/16˝ OD fitting for 1/4˝ ID tubing pressure connection
• Fire retardant glass filled polyester housing