Dwyer IS626 User Manual

Bulletin E-IS-626

MALE NPT/BSPT CONNECTOR WITH CABLE GLAND

1/4 NPT or
1/4 BSPT

1-1/16 [26.99] HEX

5-3/16 [131.75]

6-1/4 [158.75] MAX

ø1 [25.40]

1/4 NPT OR

1/4 BSPT

1-1/16 [26.99] HEX

MALE NPT/BSPT CONNECTOR WITH MALE M-12 CONNECTOR

5-1/16 [128.58]

5-21/32 [143.67]

ø1 [25.40]

ø1 [25.40]1-1/16 [26.99] HEX

5-1/16 [128.58]

5-21/32 [143.67]

FEMALE NPT/BSPT CONNECTOR WITH MALE M-12 CONNECTOR

1/4 NPT OR

1/4 BSPT

FEMALE

CD

= CRITICAL DIMENSION
STANDARD TOLERANCES UNLESS NOTED:
ALL DECIMAL DIMENSIONS ± /005
ALL ANGLES ± 1’

FEMALE NPT/BSPT CONNECTOR WITH CABLE GLAND

1-1/16 [26.00] HEX

5-3/16 [131.76]

5-1/4 [158.75]

1/4 NPT OR

1/4 BSPT

FEMALE

ø1 [25.40]

Series IS626 Pressure Transducer

Specifications - Installation and Operating Instructions

The Dwyer Series IS626 Pressure Transducer convert pressure into a

standard 4-20 mA output signal. The Series IS626 can be used to accu­rately measure compatible gases and liquids. Series IS626 full scale ac­curacy is 0.25% (see specifications). Designed for industrial
environments with a NEMA 4X (IP66) housing, this transmitter resists
most effects of shock and vibration.

SPECIFICATIONS
Service: Compatible gases and liquids.
Wetted Materials: Type 316, 316L SS.
Accuracy: 0.25% full scale (includes linearity, hysteresis, and repeata-

bility).

Temperature Limit: 0 to 176°F (-18 to 80°C).
Compensated Temperature Range: 0 to 176°F (-18 to 80°C).

Intrinsic Safety Approval Classification

The IS626 is UL listed for use in Hazardous (Classified) Locations. The
protection method is by Intrinsic Safety, “ia”. It was investigated by UL
under UL Standard 913 Sixth Edition and CSA Standard No. 157-92.

Thermal Effect: ±0.02% FS/°F (includes zero and span).
Pressure Limits: See Pressure Range Table (Next Page).
Power Requirements: 10 to 28 VDC.
Output Signal: 4 to 20 mA.
Response Time: 50 msec.

For use in Hazardous (Classified) Locations:
Class I Div. 1 Groups A,B,C,D
Class II Div. 1 Groups E,F,G
Class III Div. 1
Temperature Code: T4 @ 80°C ambient
Install in accordance with control drawing 01-700797-00.

Loop Resistance: 0 - 900 ohms maximum.
Current Consumption: 38 mA (maximum).
Electrical Connections: 3 ft. cable or 4-pin M-12 Connector.
Process Connection: 1/4˝ male/female NPT and BSPT.
Enclosure Rating: NEMA 4X (IP66).
Mounting Orientation: Mount in any position.
Weight: 8.9 oz (252 g).

WARNING: To prevent ignition of flammable or
combustible atmospheres, disconnect power be­fore servicing.
Use with approved safety barriers using entity eval­uation.

Agency Approvals: CE, UL Intrinsically Safe to UL Standard 913. (See
Intrinsic Safety Approval Classification)

The following standards were used for CE approval:

IEC 61000-4-2: 2001
IEC 61000-4-3: 2006
IEC 61000-4-4: 2004
IEC 61000-4-5: 2005
IEC 61000-4-6: 2006

IS626 Entity Parameters

Vmax

28VDC

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: [phone] e-mail: [e-mail]

Imax

93mA

Ci

0.051_F

Li

240_H

Pi

0.651W

IEC 61000-4-8: 2001
CENELEC EN 55011: 2003
CENELEC EN 61326: 2003
89/336/EEC EMC Directive

Phone: [phone] www.dwyer-inst.com

CAUTION: Do not exceed specified supply voltage

POWER
SUPPLY
10-28 VDC

-

RECEIVER

BLACK

RED

PRESSURE

TRANSDUCER

mA

TERMINAL 4 (-)

TERMINAL 1 (+)

ratings. Permanent damage not covered by war­ranty will result. This device is not designed for 120
or 240 volt AC operation. Use only on 10 to 28
VDC.

5. Wiring

An external power supply delivering 10-28 VDC with minimum current ca­pability of 40 mA DC (per transducer) is required to power the control loop.
See Fig. A for connection of the power supply, transducer and receiver.
The range of appropriate receiver load resistance (RL) for the DC power
supply voltage available is expressed by the formula:

Pressure Range Table

Pressure
Range (psig)

30˝ Hg-0
30˝ Hg-0-15
30˝ Hg-0-30
30˝ Hg-0-45
30˝ Hg-0-60
30˝ Hg-0-100
0-5
0-15
0-30
0-50
0-100
0-150
0-200
0-300
0-500
0-1000
0-1500
0-2000
0-3000
0-5000
0-8000

Maximum
Pressure (psig)

30
30
60
100
200
200
10
30
60
100
200
300
400
600
1000
2000
3000
4000
6000
7500
10000

Over
Pressure (psig)

150
150
300
300
500
500
50
150
300
300
500
750
1000
1500
2500
5000
5000
5000
7500
10000
12000

INSTALLATION

1. Location: Select a location where the temperature of the transducer will

be between 0 and 176°F (-18 to 80°C). Distance from the receiver is lim­ited only by total loop resistance. The tubing or piping supplying pressure
to the unit can be practically any length required but long lengths will in­crease response time slightly.

2. Position: The transducer is not position sensitive. However all stan­dard models are originally calibrated with the unit in a position with the
pressure connection downward. Although they can be used at other an ­gles, for best accuracy it is recommended that units be installed in the po­sition calibrated at the factory.

L max

Vps - 12.3V

=

20 mA

R

Shielded cable is recommended for control loop wiring.

Fig. A

When using cable version IS626, black wire is negative (-) and red wire
is positive (+). When using 4-pin M-12 connector models, wire to pins as
shown below in Fig. B.

Fig. B

Male-12 Connector

3. Pressure Connection: Use a small amount of plumber’s tape or other

suitable sealants to prevent leaks. Be sure the pressure passage inside
the port is not blocked.

4. Electrical Connections
Wire Length - The maximum length of wire connecting the transducer

and receiver is a function of wire size and receiver resistance. Wiring
should not contribute more than 10% of the receiver resistance to total
loop resistance. For extremely long runs (over 1000 feet), choose re­ceivers with higher resistance to minimize the size and cost of connecting
leads. Where wiring length is under 100 feet, wire as small as 22 AWG can
be used.