Setra 231RS Data sheet

Multi-Sense® Model 231RS

Wet-to-Wet, Differential, Multi-Configurable Pressure Transducer

231RS Cable Version

FEATURES

■ Wet-to-Wet Transducer w/ Remote Sensors

■ Conduit and Cable Versions

■ Field Selectable Output - True 4 to 20 mA,

0 to 5, 1 to 5, and 0 to 10 VDC

231RS Conduit Version

Industry First Wet-to-Wet

Remote Sensor Design

DESCRIPTION

etra’s 231RS with remote sensors reduces labor, materials,
and time. The sensors are installed directly into the pipe

S

and electrical connection is made between the remote
sensors and the Model 231RS via cables or conduit, reducing
labor cost by one-third and the cost of copper to connect the
pressure transducer to the pipe. Startup time is reduced since
purging air out of the lines is not necessary.

The Multi-Sense® Model 231 Wet-to-Wet differential pres­sure transducer’s all inclusive design provides users with field
accessible ranging, choice of output and field zeroing.

NOTE: Setra quality standards are based on ANSI-Z540-1.
The calibration of this product is NIST traceable.

■ Each Unit Provides 4 Unidirectional and 4

Bidirectional Switch Selectable Pressure
Ranges

■ Field Accessible Push-Button Zero and

Remote Zero

■ Jumper Selectable Port Swap

■ Optional LCD

■ All Cast Aluminum, NEMA4 Rated Housing

■ CE and RoHS Compliant

APPLICATIONS

■ Energy Management Systems

■ Process Control Systems

■ Flow Measurement of Various Gases or

Liquids

■ Liquid Level Measurement of Pressurized

Vessels

DIFFERENTIAL PRESSURE

SPECIFICATIONS

Performance Data

Accuracy RSS1 (at constant temp.)
Pressure Ranges A, B, C ±1.0% FS
Pressure Range D ±2.0% FS

Pressure Ranges (Selection Example, Pg.4)

Range
Code

RS1 50 25 10 5 50

RS2 75 37.5 15 7.5 75

RS3 100 50 20 10 100

RS4 150 75 30 15 150

RS5 250 125 50 25 250

Thermal Effects
Compensated Range °F (°C) +32 to +130 (0 to +54)
Zero Shift %FS/100°F (50°C) 2.0 (1.8)
Span Shift %FS/100°F(50°C) 2.0 (1.8)

Warm-up Shift <0.12% FS
Response Time 1 to 5 sec. (selectable )
Proof Pressure 2 x Full Scale
Burst Pressure 15 x Full Scale (50 psi)
10 X Full Scale (75 x 150 psi)
8 x Full Scale (250 psi)

A B C D Max. Line

2

Line Pressure

Determines

Selection of Range

Code

Pressure

Environmental Data

Temperature
Operating3 °F (°C) -4 to +185(-20 to +85)
Storage °F (°C) -4 to +185(-20 to +85)
Vibration 10g from 50 Hz to 2000 Hz

Shock 200g

Physical Description

Case Die Cast Aluminum, Powder
Coated
Pressure Fittings 1/4-18 NPT Male
Electrical Connection 1/2 in. Conduit
Size 4.0 x 6 x 2 in.
(102 x 152 x 51mm)

Weight 1.3 lb (Case Only)

Pressure Media

Liquids or Gases Compatible with 17-4 PH Stainless Steel
Note: Hydrogen not recommended for use with 17-4 PH stainless
steel.

1

RSS of Non-Linearity, Hysteresis, and Non-Repeatability.

2

Units calibrated at nominal 70˚F. Maximum thermal error computed from

this datum.

3

Operating temperature limits of the electronics only. Pressure media

temperatures may be considerably higher or lower.

Electrical Data (Voltage)

Circuit 3-Wire
Excitation 15 to 30 VDC/18 to 30 VAC
(Reverse Excitation Protected)
Output4 0 to 5 VDC
0 to 10 VDC
1 to 5 VDC
Output Impedance 30 Ohms
Current Consumption 8 mA (typ.) at 5 VDC
8 mA (typ.) at 10 VDC
40 mA (typ.) at 18-30 VAC

Electrical Data (Current)

Circuit 2-Wire
(Reverse Excitation Protected)
Output5 4 to 20 mA
External Load 0 to 250 Ohms
Minimum supply voltage (VDC ) = 15 + 0.02 x (Resistance
of receiver plus line).
Maximum supply voltage (VDC) = 30 + 0.004 x
(Resistance of receiver plus line).

4

Calibrated into a 50K ohm load, operable into a 5000 ohm load

or greater.

5

Calibrated at factory with a 24 VDC loop supply voltage and a

250 ohm load.

Specifications subject to change without notice.

©2011 Setra Systems, Inc. All rights reserved. The Setra Systems name and logo are registered trademarks of Setra Systems, Inc. Phone: [phone] • Fax: [phone] • setra.com

1

Multi-Sense® Model 231RS

Wet-to-Wet, Differential, Multi-Configurable Pressure Transducer

WIRINGDIMENSIONS

DIFFERENTIAL PRESSURE

1.98

50.3

Side View

IN

MM

4.00

102.0

6.0

152.4

R 0.1

2.5

0.35

8.8

1.56

39.6

141.2

Conduit Version

5.56

6.00

152.4

5.56

141.2

Front View

1.22

30.9

5.16

131.1

Bottom View

1.98

50.3

1.24

31.5

2 x

0.86

21.9

2.00

50.8

0.95

24.1

IN

MM

DC/AC
Power Supply

Controller

Voltage

Relay

+

+

3-Wire - Voltage Output

0 to 5 VDC

0 to 10 VDC

1 to 5 VDC

Remote Zero

R 0.1

0.35

8.8

2.5

1.22

31.0

Front View

1.56

39.6

2.0

50.8

1.66

42.2

5.16

131.1

Bottom View

Cable Version

4.0

102

Side View

0.95

4.87

123.6

5.08

129.0

DC Power
Supply

Controller

Current

(4-20 mA)

Relay

SSP231RS Rev.A 09/14/111

+

+

2-Wire - Current Output

4 to 20 mA

Remote Zero

2

Phone: [phone] • Fax: [phone] • setra.com ©2011 Setra Systems, Inc. All rights reserved. The Setra Systems name and logo are registered trademarks of Setra Systems, Inc.

Multi-Sense® Model 231RS

Wet-to-Wet, Differential, Multi-Configurable Pressure Transducer

DIFFERENTIAL PRESSURE

DIMENSIONS

3.61

91.7

1.68

42.5

1/2 inch Conduit Opening

1.40

35.48

1.62

41.2

3/4” HEX

1/4” NPT

IN

MM

WIRING

Terminal Block

(CN8 & CN11)

4

3

2

1

(GND)

+OUT

COM

+EXC

Transducer w/Conduit

Conduit Adapter

Transducer w/Conduit

1.46

37.1

3.00

76.0

1.62

41.2

IN

MM

0.325

8.3

Terminal Block

(CN8 & CN11)

4

(Shield)

3

+OUT (White) C

2

COM (Black) A

1

+EXC (Red) B

3-Pin Packard

Transducer w/Pack ard Connector

Connector

Transducer w/Pack ard Connector

©2011 Setra Systems, Inc. All rights reserved. The Setra Systems name and logo are registered trademarks of Setra Systems, Inc. Phone: [phone] • Fax: [phone] • setra.com

3

INSTALLATION

Multi-Sense® Model 231RS

Wet-to-Wet, Differential, Multi-Configurable Pressure Transducer

Model 231RS

DIFFERENTIAL PRESSURE

Valve A

High

High Pressure

Remote Sensor

1

Valve A = High Side Valve
Valve B = Low Side Valve

Pipe

1. Valves not included.

Low Pressure

Remote Sensor

Pipe

PRESSURE RANGE CODE SELECTOR (IMPORTANT: READ BEFORE ORDERING)

Examine the pressure application and determine what is the Highest System Line Pressure.
Determine what is the Differential Pressure being measured.
Find the MAX. Line Pressure in the table on the right that is > to your Highest System Line Pressure.
Verify that your DP falls within the selectable ranges in that row.
Follow that row to the left and select that range code.

Example: Highest System Line Pressure: 125 psig

Range
Code

RS1 50 25 10 5 50

RS2 75 37.5 15 7.5 75

RS3 100 50 20 10 100

RS4 150 75 30 15 150

RS5 250 125 50 25 250

Differential Pressure Measured: 75 psid
“Max Line Pressure” ≥ to System Line Pressure: 150 psid (75 psid DP falls within ranges in this row)
Select Range Code: RS4

A B C D Max. Line

Valve B

Low

1

Line Pressure

Determines

Selection of Range

Code

Pressure

ORDERING INFORMATION

2 3 1 G

Model Range Code Pressure Connection Display Cable

231G = 231RS See Table 1 Below 3M 1/4-18 NPT Male Remote Sen-

sor (Conduit Version)

4M 1/4-18 NPT Male Remote Sen-

sor (Cable Version)

Ordering Example: 231GRS44MN10 = Model 231RS w/Range Code RS4, 1/4-18 NPT Male Remote Sensor
(Cable Version) , No Display, 10ft. Cable

Table 1. Range Specifi cation

2

UNIDIRECTIONAL PRESSURE RANGES BIDIRECTIONAL PRESSURE R ANGES

5, 10, 25, 50 psid ±5, ±10, ±25, ±50 psid

15, 30, 75, 150 psid ±15, ±30, ±75, ±150 psid

25, 50, 125, 250 psid ±25, ±50, ±125, ±250 psid

4

RANGE CODE

RS1

RS2 7.5, 15, 37.5, 75 psid ±7.5, ±15, ±37.5, ±75 psid

RS3 10, 20, 50, 100 psid ±10, ±20, ±50, ±100 psid

RS4

RS5

1. Cable lengths only available with Pressure Connection Code 4M. 2. For higher ranges contact factory.

Phone: [phone] • Fax: [phone] • setra.com ©2011 Setra Systems, Inc. All rights reserved. The Setra Systems name and logo are registered trademarks of Setra Systems, Inc.

1

Std. N No Display Std. 10 10ft

SSP231RS RevB 08/30/11

Opt. D LCD Display Opt. 20 20ft

Opt. 30 30ft