Dwyer Instruments 626,628 Data sheet

®

SERIES 626 & 628 | INDUSTRIAL PRESSURE TRANSMITTER/TRANSDUCER

FEATURES/BENEFITS

Standard:

• NEMA 4X rated enclosure

•Robust316LSSoillledsensor

• CE Approved Design

• 626: 0.25% FS

• 628: 1.0% FS

Optional:

• Advanced environmental protection

• C-276 wetted materials

• Digital or Analog Outputs (I2C)

•Customrangeconguration

• Overpressure and/or vacuum

626/628 Pressure Transmitters with

General Purpose Housing (-GH)

protection

APPLICATIONS

• Booster stations

• Pumping systems

• Irrigation equipment

• PTO systems

• Submersible pump control

626/628 Pressure Transmitters

with Conduit Box Housing (-CB)

and LCD display

DESCRIPTION

The SERIES 626 & 628 Pressure Transmitters feature a piezo-resistive sensor contained in a compact, rugged, NEMA 4X (IP66) stainless steel general
purpose housing or cast aluminum conduit housing.

Dwyer offers optional congurations to address multiple common points of failure that have traditionally challenged the use of similar products in extreme

conditions. The 626 & 628 are uniquely suited for precision irrigation and additional outdoor power equipment applications. The corrosion resistant 316L
stainless steel wetted parts allow the Series 626 & 628 transmitters to measure pressure in a multitude of processes from simple irrigation systems to
chemical dosing and injection systems. Optional wetted materials such as C-276 offer chemical compatibility with aggressive media. The 626 & 628 can be

congured to provide advanced environmental protection. This includes, but is not limited to, freeze/thaw protection for outdoor cold weather applications,
vibration resistance, and/or overpressure protection to protect the sensors against pressure surges or pump cavitation. The Series 626 & 628 are available

in absolute and gauge pressure ranges with a variety of optional outputs, process connections, electrical terminations, and select agency approvals to
allow you to select the correct transmitter for your application.

ContactDwyerInstrumentstodaytodiscussyourspecicapplicationneeds.

SPECIFICATIONS

Wetted Materials Type 316L SS. (Consult factory for additional options)

Temperature Limit 0 to 200°F (-18 to 93°C).

Compensated Temperature

Thermal Effect ±0.2% FS/°F (includes zero and span).

Pressure Limits See table on catalog page.

Power Requirement

Output Signal

Response Time 300 ms.

Loop Resistance

Current Consumption

Electrical Connections

Process Connections 1/4˝ male or female NPT and BSPT.

Enclosure Rating NEMA 4X (IP66).

Agency Approvals Standard: CE; Optional: NSF/ANSI 61/372, ANSI/UL 218, ANSI/UL 508, NEPA 20

Service Compatible gases and liquids.

Accuracy

Display Optional 4-1/2 digit LCD eld attachable display.

Stability 1.0% FS/year (typ).

Weight 10 oz (283 g).

626: 0.25% FS, 0.20% RSS; 628: 1.0% FS, 0.5% RSS; 626 Absolute Ranges: 0.5% FS, 0.30% RSS. (Includes
linearity, hysteresis, and repeatability).

0 to 175°F (-18 to 79°C).

Range

10 to 30 VDC (for 4 to 20 mA, 0 to 5, 1 to 5, VDC outputs); 13 to 30 VDC (for 0 to 10 VDC output); 5 VDC ±0.5 VDC
(for 0.5 to 4.5 VDC ratiometric output), 10 to 35 VDC (for 4 to 20 mA with -CB option); 13 to 35 VDC or isolated 16
to 33 VAC (for selectoable output with -CB option).
4 to 20 mA, 0 to 5 VDC, 1 to 5 VDC, 0 to 10 VDC, or 0.5 to 4.5 VDC, or selectable 0 to 5, 1 to 5, 0 to 10, 2 to 10
VDC for -CB option.

0 to 1000 Ohms max. R max = 50 (Vps-10) Ohms (4 to 20 mA output), 0 to 1250 Ohms max. Rmax = 50(Vps-10)

Ohms (4 to 20 mA output with -CB option), 5K Ohms (0 to 5, 1 to 5, 0 to 10, 0.5 to 4.5 VDC output).

38 mA maximum (for 4 to 20 mA output); 10 mA maximum (for 0 to 5, 1 to 5, 0 to 10, 0.5 to 4.5 VDC output); 140 mA
maximum (for all 626/628/629-CH with optional LED).
Conduit housing (-CH): Terminal block, 1/2˝ female NPT conduit; General purpose housing (-GH): Cable DIN EN

175801-803-C.

dwyer-inst.com

DWYER INSTRUMENTS, INC.

T: 219-879-8000 | F: 219-872-9057 | [e-mail]
800-872-9141

®

DIMENSIONS

6-23/64 [161.528]

L

LIQUID TIGHT FITTING
CORD DIAMETER RANGE
.200
(5.08

TO .350

TO 8.89)

11/32 [34.131]

HOW TO ORDER

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

SERIES

626 - 0.25% full scale accuracy
628 - 1.0% full scale accuracy

RANGE

-00 - 0 to 15 psia*

-01 - 0 to 30 psia*

-02 - 0 to 50 psia*

-03 - 0 to 100 psia*

-04 - 0 to 200 psia*

-05 - 0 to 300 psia*

-06 - 0 to 5 psi

-07 - 0 to 15 psi

-08 - 0 to 30 psi

-09 - 0 to 50 psi

-10 - 0 to 100 psi

-11 - 0 to 150 psi

-12 - 0 to 200 psi

-13 - 0 to 300 psi

ACCESSORIES

Model Description Model Description
A-164
A-62X-LCD
A-960

2-1/8 [53.975]
1/4 NPT OR BSPT

23/32
[18.256]

59/64 [23.415]

Conduit Housing General Purpose Housing

FEMALE FITTING

2-21/32 [67.46]
OPTIONAL
1/4 NPT
OR BSPT
MALE FITTING

626 -05 -CH -P3 -E1 -S1 -NIST

-14 - 0 to 500 psi

-22 - 0 to 600 psi

-15 - 0 to 1000 psi

-16 - 0 to 1500 psi

-18 - 0 to 3000 psi

-19 - 0 to 5000 psi

-26 - 0 to 8000 psi

-67 - 0 to 0.5 bar*

-71 - 0 to 2.5 bar*

-75 - 0 to 10 bar*

-81 - 0 to 40 bar*

*Only available on

-GH housing models

16.4´ (5 m) cable with M-12 4-pin female connector
Field-upgradeable LCD

3´ (1 m) Packard cable

3-7/32
[81.756]
OPTIONA
LCD

A-961
A-962

7/8 [22.23]

HEX

9´ (3 m) Packard cable
20´ (7 m) Packard cable

1/4 NPT

2-27/64 [61.52]

3-13/64 [81.36]

Ø55/64 [21.83]

OPTIONS

-AT - Aluminum tag

-LED - Bright red LED display

-NIST - NIST traceable calibration certicate

-NW - NSF/ANSI 61/372 certied

SIGNAL OUTPUT

-S1 - 4 to 20 mA

-S2 - 1 to 5 VDC

-S4 - 0 to 5 VDC

-S5 - 0 to 10 VDC

-S7 - 0.5 to 4.5 VDC

-S8 - 0 to 5, 1 to 5, 0 to 10, 2 to 10 VDC

ELECTRICAL CONNECTIONS

-E1 - Cable gland with 3´ of prewired cable

-E3 - Cable gland with 9´ of prewired cable

-E4 - DIN EN 175801-803-C

-E5 - 1/2˝ female NPT conduit

-E6 - M-12 4-pin connector UL listed

-E8 - Packard connector

-E9 - M-12 4-pin connector non-UL listed

PROCESS CONNECTIONS

-P1 - 1/4˝ male NPT

-P2 - 1/4˝ female NPT

-P3 - 1/4˝ male BSPT

-P5 - 1/4˝ female SAE w/ refrigerant

valve depressor

-P9 - 1/2˝ male NPT

HOUSING

-CB - Conduit box housing

-GH - General purpose housing

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.

dwyer-inst.com

T: 219-879-8000 | F: 219-872-9057 | [e-mail]
800-872-9141

DS-626/628 Rev. 6 | 1/18