Dwyer Instruments SERIES 629HLP Data Sheet

SERIES 629HLP | HIGH PRESSURE DIFFERENTIAL PRESSURE TRANSMITTERS

®

FEATURES/BENEFITS

• Rugged, versatile, high accuracy device

• For liquid or gas systems requiring precise measurements

• Provide excellent response and reliability

• Suitable for static and dynamic measurements

• Converts pressure changes into 4-20 mA or 0-10 VDC output

• Compact and lightweight, for exible and simple installation

• 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 or differential overpressure

DESCRIPTIONAPPLICATIONS

• Heat exchangers

• Fan coils/air handlers

• Core testing applications

• Hydraulic systems

• High line pressures/low DP

• Pumps

• Commercial/industrial processes

• Sanitary process

The Series 629HLP Differential Pressure Transmitters are suitable
for measuring over-pressure, under-pressure, and differential pressure in
compatible gases and liquids with 1% accuracy. The 629HLP is suitable
for all measuring tasks in commercial, industrial or sanitary applications.
Its single sensor design, allows it to measure small increment pressure
changes, and converts them to a linear analog output signal from 4-20
mA or 0-10 VDC.

SPECIFICATIONS

Service Compatible gases or liquids.

Wetted Material 304 SS, EPDM, silicone grease, alumina ceramic; Optional 3-way valve: Brass, copper, nylon, HNBR, FKM, NBR.

Housing Material ABS.

Enclosure Rating IP65.

Accuracy ±1% from -5 to 60°C (23 to 140°F).

Stability ±1% FS/year.

Temperature Limits Ambient: -10 to 60°C (14 to 140°F); Process: -10 to 80°C (14 to 176°F).

Relative Humidity 10 to 90% non-condensing.

Installation Position Not position sensitive.

Differential Pressure Range 0 to 1 bar; 0 to 2.5 bar; 0 to 4 bar; 0 to 6 bar.

Static Pressure Limits 25 bar (360 psi).

Over Pressure 5 bars for 0 to 1 bar and 0 to 2.5 bar ranges, 12 bars for 0 to 4 bar and 0 to 6 bar ranges; 70 psi for 0 to 15 psi and 0 to

Burst Pressure 8 bars for 0 to 1 bar and 0 to 2.5 bar ranges,18 bars for 0 to 4 bar and 0 to 6 bar ranges; 115 psi for 0 to 15 psi and 0 to

Output Signal 4-20 mA or 0-10 VDC.

Rated Supply Voltage 0-10 VDC output: 12-36 VDC or 12-32 VAC @ max load of 2K Ω 4-20 mA output: 8-36 VDC.
Max Loop Resistance (Supply voltage - 8 V) / 0.02 for 4-20 mA output.

Electrical Connections Form A DIN 43650.

Power Consumption V

Process Connections Standard: 1/4˝ female NPT, 1/4˝ female BSPT. With 3-way valve option: 1/8˝ female NPT, 1/8˝ female BSPT.

Weight 1 lb 4 oz (567 g).

Agency Approvals CE, RCM.

30 psi ranges, 174 psi for 0 to 60 psi and 0 to 90 psi ranges.

30 psi ranges, 260 psi for 0 to 60 and 0 to 90 psi ranges.

out = 13 mA max. Iout = 24 mA max.

DIMENSIONS

DIN CABLE
INLET
Ø.418 I.D.

2-41/64 [67.00]

APPROX. 6-15/16 [176.33]

5-19/32

1]

3-1/4

[82.40]

2-3/16
[55.40]

WIRING DIAGRAM

1-21/32

[42.00]

2-7/16 [62.00]

2-1/8

[53.81]

1-3/16
[30.00]

1/4 NPT OR
1/4 BSPT

VOUT (+)

PWR (+)

3

APPROX.

3-15/16 [100.03]

2-13/32

[60.96]

1-3/16
[30.00]

1

2

SHIELD

4-17/64
[108.33]

3-63/64
[101.02]

3

IOUT +

3 [76.2]

1

2

2-13/32
[60.96]

SHIELD

1-37/64

[40.13]

[142.1

COM (-)

Wiring - Voltage output Wiring - Current output

HOW TO ORDER

Use the bold characters from the chart below to construct a product code.

629HLP -S1-01 -FC-P2

SERIES

629HLP: Differential pressure transmitter

RANGE

-01: 0 to 1 bar

-02: 0 to 2.5 bar

-04: 0 to 4 bar

-06: 0 to 6 bar

-15: 0 to 15 psi

-30: 0 to 30 psi

-60: 0 to 60 psi

-90: 0 to 90 psi

IOUT -

OPTIONS

-3V: 3-way valve

-FC: Factory calibration

-NIST: NIST traceable calibration certicate

OUTPUT SIGNAL

-S1: 4-20 mA

-S5: 0-10 VDC

PROCESS CONNECTIONS

-P2: 1/4˝ female NPT

-P4: 1/4˝ female BSPT

USA: California Proposition 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

©Copyright 2020 Dwyer Instruments, Inc.
Printed in U.S.A. 3/20 DS-629HLP Rev. 3

Important Notice: Dwyer Instruments, Inc. reserves the right to make changes to or discontinue any product or service identied 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.

DWYER INSTRUMENTS, INC.