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629C Wet/Wet Differential Pressure Transmitter

Monitors differential pressure of air and compatible gases and liquids with 0.5% accuracy, dual pressure sensors, zero adjust button

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$492.00 CAD
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The Series 629C Wet/Wet Differential Pressure Transmitter monitors differential pressure of air and compatible gases and liquids with 0.5% accuracy. The design employs dual pressure sensors converting pressure changes into a standard 4 - 20 mA output signal or field selectable voltage. Small internal volume and minimal moving parts result in exceptional response and reliability. The terminal block, as well as a zero adjustment button, are easily accessed under the top cover. The Series 629C Differential Pressure Transmitter is designed to meet NEMA 4X (IP66) construction.

• Versatile, high accuracy device for liquid or gas supports designs requiring more precise measurements in support of application
• Minimum components provide excellent response and reliability
• Zero control reduces installation and service time
• Terminal block reduces wiring difficulties saving installation time
• Optional LCD indicator provides local status to identify operational conditions
• Optional 3-way valve manifold supports higher line pressures or simplifies removal of transmitter without interrupting process


Service Compatible gases and liquids
Wetted Materials Without valve: 316, 316L SS.
Additional wetted parts with valve option: Buna-N, silicone grease, PTFE, brass 360, copper, and reinforced copolymer
Accuracy 0.5% FS (includes linearity, hysteresis & repeatability)
Stability 1% FS/year
Temperature Limits 0F - 200F (-18C - 93C)
Compensated Temperature Limits 0F - 175F (-18C - 79C)
Pressure Limits See Chart on Catalog
Thermal Effect Avg 0.04%/F (0.072%/C) (includes zero and span)
Power Requirements 2-wire: 10 - 35 VDC;
3-wire: 13 - 35 VDC or isolated 16 - 33 VAC (reverse polarity protected)
Output Signal 2-wire: 4 - 20 mA;
3-wire: Field selectable 0 - 5, 1 - 5, 0 - 10, or 2 - 10 VDC
Zero and Units Push buttons inside conduit enclosure
Response Time 400 ms
Loop Resistance Current Output: 0 Ω - 1250 Ω (max),
Rmax = 50 (Vps-10);
Voltage Output: Minimum load resistance = 5 kΩ
Current Consumption 28 mA (max)
Electrical Connections Removable terminal block; 1/2 in female NPT conduit
Process Connections 1/4 in female or male NPT
Display Optional 4-1/2 digit LCD field attachable display
Enclosure Rating Designed to meet NEMA 4X (IP66)
Mounting Orientation Not position sensitive
Weight 10.1 oz (286 g)
Agency Approvals CE

• Flow elements
• Heat exchangers
• Filters
• Coils
• Chiller
• Pumps