Starting at $280.30USD
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Dwyer

668 Differential Pressure Transmitter

Capable of measuring low pressures with a ± 1% accuracy

Starting at
$280.30USD
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668 Differential Pressure Transmitter 02452

Our 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.

• 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


 

ServiceAir and non-conductive gases
Accuracy± 1% FS (RSS), (includes non-linearity, hysteresis, and non-repeatability)
Temperature LimitsOperating: 0°F - 150°F (-18°C - 65°C);
Storage: -40°F - 185°F (-40°C 85°C)
Pressure Limits10 PSIG (0.69 Bar)
Compensated Temperature Range0°F - 150°F (-18°C - 65°C)
Thermal Effects0.033% FS/°F (0.18% FS/°C)
Supply Voltage12 VDC - 30 VDC
Output4 - 20 mA, 2-wire
Zero and Span Adjustment± 1 mA, non-interactive
Response Time< 60 ms
Loop Resistance0 Ω - 800 Ω
Electrical ConnectionTerminal strip
Pressure Connection3/16 in OD fitting for 1/4 in ID tubing
HousingFire retardant glass filled polyester
Weight3 oz (85 g)
Agency ApprovalCE

• Variable air volume systems
• HVAC
• Building management
 

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