Series 629 Wet/Wet Differential Pressure Transmitter

0.5% Accuracy, NEMA 4X Enclosure

The SERIES 629 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 for two wire circuits. Small internal volume and minimum moving parts result in exceptional response and reliability. Terminal block zero and span adjustments are easily accessed under the top cover. The Series 629 Differential Pressure Transmitter is designed to meet NEMA 4X (IP66) construction.

This series is being phased out in 2017, see Series 629C for additional ranges.

California Residents:  Click Here for Proposition 65 WARNING.

Product Applications

  • Flow Elements
  • Heat Exchangers
  • Filters
  • Pumps
  • Coils
  • Chiller

Models & Ordering

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Model Description Usually Ships Price Order
629-02-CH-P2-E5-S5
Ships: 2-3 Weeks
Price: $285.00
Wet/wet differential pressure transmitter, range 10 psid, conduit housing, 1/4" NPT female process connections, 0-10 V output. 2-3 Weeks $285.00 Order
629-03-CH-P2-E5-S5
Ships: 2-3 Weeks
Price: $285.00
Wet/wet differential pressure transmitter, range 25 psid, conduit housing, 1/4" NPT female process connections, 0-10 V output. 2-3 Weeks $285.00 Order
629-04-CH-P2-E5-S5
Ships: 2-3 Weeks
Price: $285.00
Wet/wet differential pressure transmitter, range 50 psid, conduit housing, 1/4" NPT female process connections, 0-10 V output. 2-3 Weeks $285.00 Order

Specifications

Service:
Compatible gases and liquids.
Wetted Materials:
Without valve: 316, 316L SS. Additional wetted parts with 3-way valve option: Buna-N, silicone grease, PTFE, brass 360, copper, reinforced acetal copolymer.
Accuracy:
±0.5% F.S. (includes linearity, hysteresis, and repeatability).
Temperature Limits:
0 to 200°F (-18 to 93°C).
Compensated Temperature Limits:
0 to 175°F (-18 to 79°C).
Pressure Limits:
See Ordering page.
Thermal Effect:
0.02%/°F (0.036%/°C) includes zero and span.
Power Requirements:
13 to 30 VDC.
Output Signal:
4 to 20 mA. Optional 0 to 5 or 0 to 10 VDC.
Response Time:
50 ms.
Loop Resistance:
0 to 1300 Ω maximum for current output. For voltage outputs, minimum load resistance: 2000 Ω.
Electrical Connections:
Terminal block; 1/2" female NPT conduit.
Process Connection:
1/4" female NPT.
Enclosure Rating:
Designed to meet NEMA 4X (IP66).
Mounting Orientation:
Mount in any position.
Weight:
10.1 oz (286 g).
Agency Approvals:
CE.

NOTE:
Pressures exceeding the working pressure limit may cause a calibration shift of up to ±3% of full scale.

Features

  • 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
  • Span and zero controls reduce installation and service time
  • Terminal block reduces wiring difficulties saving installation time
  • Optional LED indicator provides local status to identify operational conditions
  • Optional 3-way valve manifold supports higher line pressures or simplifying removal of transmitter without interrupting process

Options

  • -3V 3 Way Valve Package for Chillers.
  • -LED 4.5 Digit LED Display.

Accessories

Model Number Description Usually Ships Price Order
641-LED Field-upgradeable LED. Next Day $130.00 Order
Cable gland with 1/2 A-155 Cable gland with 1/2" male NPT fitting. Next Day $16.00 Order
Mini 3-valve block manifold BBV-1B Mini 3-valve block manifold Next Day $127.00 Order
Stainless steel flex hose, 12 A-228 Stainless steel flex hose, 12" (30.48 cm) long, 1/8" male NPT connections. 2-3 Weeks $34.75 Order
A-131A 3-Way manifold & bracket for pressure transmitters. 1-2 Weeks $135.00 Order

Videos

Model Chart

EXAMPLE 629 06 CH P1 E1 S1 AT Series 626-06-CH-P1-E1-S1-AT Wet/Wet Differential Pressure Transmitter, range 0-150 psid, conduit housing, NEMA 4X (IP66), 1/4" male NPT, 3 ft. cable, 4-20 mA output, with aluminum tag.
SERIES 629             Wet/Wet Differential Pressure Transmitter
RANGE   02
03
10
04
05
06
07
08
09
91
          0-10 psid
0-25 psid
0-30 psid
0-50 psid
0-100 psid
0-150 psid
0-200 psid
0-300 psid
0-500 psid
0-6 Bar
HOUSING     CH         Conduit Housing, NEMA 4X (IP66)
FITTINGS       P1
P2
P3
      1/4" Male NPT
1/4" Female NPT
BSPT ISO 228 R 1/4"
ELECTRICAL
CONNECTIONS
        E1
E2
E3
E5
    3 Ft. Cable (GH, CH)
6 Ft. Cable (GH, CH)
9 Ft. Cable (GH, CH)
Conduit Connection (CH, EH)
ELECTRICAL
OUTPUT
          S1
S2
S3
S4
S5
S6
  4-20 mA
1-5 Volts
2-10 Volts
0-5 Volts
0-10 Volts
1-6 Volts
OPTIONS             AT
LED
NIST
PRESET
3V
Aluminum Tag
LED Indication
NIST Certification
Preset Transmitter
3-Way Valve

Product Literature

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