Product Overview

The Series 629C Wet/Wet Differential Pressure Transmitter monitors
differential pressure of compatible gases and liquids with 0.5% accuracy.
The design employs dual pressure sensors converting pressure changes
into a 4-20 mA or voltage output signal. Small internal volume and
minimal moving parts result in exceptional response and reliability. The
wiring terminals and zero adjustment button are easily accessed under
the removable cover. The Series 629C is designed to meet NEMA 4X
(IP66) weatherproof construction.
• Versatile, high accuracy device for liquid or gas supports designs requiring more precise measurements in support of
application
•Removableterminalblockreduceswiringdifcultiessavinginstallationtime
• Optional LCD indicator provides local status to identify operational conditions
• Optional 3-way valve manifold allows the transmitter to be zeroed without removing it from service and protects the
transmitter from damage due to water hammer
• Remote sensor option reduces installation labor and material
• Flow elements
• Coils
• Heat exchangers
• Chiller
• Filters
• Pumps
FEATURES/BENEFITS
DESCRIPTIONAPPLICATIONS
SERIES 629C | WET/WET DIFFERENTIAL PRESSURE TRANSMITTER
®
629C-RS
option
Conduit housing
with remote
sensor available
in 10´ or 20´
shielded or
armored cable
SPECIFICATIONS
Service Compatible gases and liquids.
Wetted Materials Without valve: 316, 316L SS. With valve option: Buna-N, silicone grease, PTFE, brass 360, copper, and reinforced
copolymer.
Accuracy ±0.5% FS (includes linearity, hysteresis & repeatability).
Thermal Effect Avg 0.04%/°F (0.072%/°C) (includes zero and span).
Display Optional 4-1/2 digit LCD eld attachable display.
Stability ±1% FS/yr.
Temperature Limits 0 to 200°F (-18 to 93°C).
Pressure Limits See chart on catalog page.
Power Requirements 10-35 VDC (2-wire); 13-35 VDC, or isolated 16-33 VAC (3-wire).
Output Signal 4-20 mA (2-wire); Field selectable: 0-5, 1-5, 0-10, or 2-10 VDC (3-wire).
Zero and Span Adjustments Push buttons inside conduit enclosure.
Loop Resistance Current output: 0 to 1250 Ω max; Voltage output: Load resistance 5 k Ω min.
Current Consumption 28 mA max.
Electrical Connections Removable terminal block; 1/2˝ female NPT conduit.
Process Connections 1/4˝ female or male NPT.
Mounting Orientation Not position sensitive.
Weight 10.1 oz (286 g).
Agency Approvals CE.