Page 1
SERIES 629C | WET/WET DIFFERENTIAL PRESSURE TRANSMITTER
®
629C-RS
option
Conduit housing
with remote
sensor available
in 10´ or 20´
shielded or
armored cable
FEATURES/BENEFITS
• Versatile, high accuracy device for liquid or gas supports designs requiring more precise measurements in support of
application
•Removableterminalblockreduceswiringdifcultiessavinginstallationtime
• 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
DESCRIPTIONAPPLICATIONS
• Flow elements
• Coils
• Heat exchangers
• Chiller
• Filters
• Pumps
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.
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.
Page 2
OPTIONAL
OPTIONAL 1/4 NPT MALE FITTING
1
VIN
+
1
VIN
+
DIMENSIONS WIRING DIAGRAM
43/64
[17.15]
1-11/32
[34.29]
3-7/64
[78.83]
1-31/32
[50.16]
LCD
5-15/16 [150.88]
1/4 NPT FEMALE FITTING
7 [177.80]
1-27/64
[35.98]
HOW TO ORDER
Use the bold characters from the chart below to construct a product code.
-05 -CH -NIST-P3 -E2 -S1629C
SERIES
629C - Wet/wet differential pressure transmitter
RANGE
-01: 0 to 5 psid
-02: 0 to 10 psid
-03: 0 to 25 psid
-04: 0 to 50 psid
-05: 0 to 100 psid
-06: 0 to 150 psid
-07: 0 to 200 psid
-08: 0 to 300 psid
-09: 0 to 500 psid
-11: 0 to 0.5 bar differential
-12: 0 to 1 bar differential
-13: 0 to 2 bar differential
-14: 0 to 4 bar differential
-15: 0 to 6 bar differential
-16: 0 to 10 bar differential
-17: 0 to 15 bar differential
-18: 0 to 20 bar differential
-19: 0 to 30 bar differential
HOUSING
-CH: Conduit housing, NEMA 4X (IP66)
-R1: Conduit housing, NEMA 4X (IP66) with Remote Sensor and 10´
shielded cable
-R2: Conduit housing, NEMA 4X (IP66) with Remote Sensor and 20´
shielded cable
-R5: Conduit housing, NEMA 4X (IP66) with Remote Sensor and 10´
armored cable
-R6: Conduit housing, NEMA 4X (IP66) with Remote Sensor and 20´
armored cable
ACCESSORIES
PRESSURE
TRANSMITTER
PRESSURE
TRANSMITTER
2
3
4
2
3
4
COM
+-
SHIELD
Current output connection
COM
VO
SHIELD
+-
Voltage output connection
POWER
SUPPLY
10-35 VDC
RECEIVER
POWER
SUPPLY
13-35 VDC
OR 16-33 VAC
RECEIVER
OPTIONS
-3V: 3-way valve (only available with
-P2 process connection)
-AT: Aluminum tag
-AT: Factory calibration certicate
-LCD: LCD indication
-NIST: NIST traceable calibration
certicate
SIGNAL OUTPUT
-S: 4-20 mA
-S3: Field selectable 0-5, 1-5, 0-10,
2-10 VDC
ELECTRICAL CONNECTIONS
-E1: Cable gland with 3´ of prewired cable
-E2: Cable gland with 6´ of prewired cable
-E3: Cable gland with 9´of prewired cable
-E5: 1/2˝ female NPT conduit
-E9: M-12 4-pin connector
PROCESS CONNECTIONS
-P1: 1/4˝ male NPT
-P2: 1/4˝ female NPT
-P3: 1/4˝ male BSPT
-P4: 1/4˝ female BSPT
Model Description
A-62X-LCD
A-629C-3V
A-155
A-228
BBV-1B
Field-upgradeable LCD
3-way brass manifold valve
Cable gland with 1/2˝ NPT male
12˝ SS ex hose
Mini SS 3-valve black manifold
ORDER ONLINE TODAY!
dwyer-inst.com/Product/Series629C
DWYER INSTRUMENTS, INC.
©Copyright 2020 Dwyer Instruments, Inc.
Printed in U.S.A. 2/20 DS-629C Rev. 3
Important Notice: Dwyer Instruments, Inc. reserves the right to make changes to or discontinue any product or service identied in this publication without notice. Dwyer advises its customers to obtain the
latest version of the relevant information to verify, before placing any orders, that the information being relied upon is current.
Loading...