Setra Systems Multi-Sense 231RS User Manual

®

Multi-Sense

Model 231RS

Multi-Congurable, Wet-to-Wet

Differential Pressure Transducer

Setra’s Model 231RS is the industry’s rst multi-congurable,
wet-to-wet dierential pressure transducer utilizing remote
sensors. This design reduces labor and material costs versus
traditional copper piping installations. The 231RS has a robust,
NEMA 4 enclosure with an LCD display and a hinged, captive
cover allowing for easy access to switches in order to adjust
range and output. An optional display is available that allows
users to view high, low, and dierential pressure readings on a
simple rotating cycle.

Advantages of Remote Sensors

Remote sensors provide multiple advantages. By connecting
the high and low side transducers at the point of measurement
instead of running copper piping back to the transducer, the
labor and material costs are cut by one-third.

All Inclusive Field Selectable Design

The 231RS has a multi-congurable design, providing the user
with eld selectable ranges and outputs as well as push button
or remote zero. This design gives the user total exibility to
make changes on the job site.

Multiple Connector Options for Added Flexibility

The 231RS oers remote sensors that connect to the unit via
armored jacket, cable or conduit tting available in 10, 20, 30,
40 and 50 foot lengths. With the remote sensors, there is no
need for a 3 or 5 valve manifold and no risk to compromising
the electronics.

Display Options Available

The 231RS has an optional LCD display which gives the user
the ability to view the high, low and dierential pressure out­puts locally at the device. The visual indicator gives instant
feedback providing performance validation to the user.

n Wet-to-Wet w/ Remote Sensors
n Armored Jacket, Conduit, Cable Versions
n Optional LCD Display w/ Hinged Cover

Model 231RS Features:

• Remote Sensor Design

• Labor and Material Costs Cut By One Third

• Field Selectable Ranges

• Field Selectable Outputs

• Field Accessible Push Button & Remote Zero

• Jumper Selectable Port Swap

• All Cast Aluminum, NEMA 4 Rated Housing

• CE & RoHS Compliant

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

Applications:

• Energy Management Systems

• Process Control Systems

• Flow Measurement of Various Gases or Liquids

• Liquid Level Measurement of Pressurized Vessels

• Pressure Drop Across Filters

®

Multi-Sense

Model 231RS

Multi-Congurable, Wet-to-Wet Differential Pressure Transducer

REMOTE SENSOR
DIMENSIONS

Transducer w/Conduit (3M)

1/2 inch Conduit Opening

91.78

3.61

19.4
.76

1/2" CONDUIT

41.07

1.617

1/4" NPT MALE

GENERAL SPECIFICATIONS

Electrical Data (Voltage) Performance Data

Circuit 3-Wire Accuracy RSS4 (at constant temp.)

Excitation

1

Output

Output Impedance 30 Ohms Pressure Ranges (Selection Example, Pg 4.)

Circuit Consumption

Electrical Data (Current)

Circuit 2-wire (Reverse Excitation Protected) RS3 100 50 20 10 100

2

Output

External Load 0 to 250 Ohms RS5 250 125 50 25 250

COVER

Min. Supply Voltage

Max. Supply Voltage

Physical Description Thermal Eects

Case Die Cast Aluminum, Powder Coated Compensated Range °F (°C) +32 to +130 (0 to +54)

Pressure Fittings 1/4-18 NPT Male

Electrical Connection 1/2 in. Conduit Warm-up Shift <0.12% FS

Size 4.0 x 6 x 2 in. (102 x 152 x 51 mm) Response Time 1 to 5 sec. (selectable)

Weight 1.3 lb Proof Pressure 2 x Full Scale

Environmental Data

Operating3 Temperature °F (°C) -4 to +185 (-20 to -85)

Storage Temperature °F (°C) -4 to +185 (-20 to +85)

Vibration 10g from 50Hz to 2000 Hz

Shock 200g

15 to 30 VDC/18 to 30 VAC6 (Reverse
Excitation Protected)

Pressure Ranges A, B, C ±1.0% FS

0 to 5 VDC, 0 to 10 VDC, 1 to 5 VDC Pressure Ranges D ±2.0% FS

8 mA (typ.) at 5 VDC, 8 mA (typ) at 10
VDC, 40 mA (typ.) at 18-30 VAC

Range Code A B C D

RS1 50 25 10 5 50

RS2 75 37.5 15 7.5 75

4 to 20 mA RS4 150 75 30 15 150

15 VDC + 0.02 x Resistance of receiver
plus line)

30 VDC + 0.004 x Resistance of receiver
plus line)

Pressure Media

Liquids or Gases Compatible with 17-4 PH Stainless Steel

Note: Hydrogen not recommended for use with 17-4 PH stainless steel

5

Zero/Span Shift %FS/100°F

(50°C)

Burst Pressure

1

Calibrated into a 50K ohm load, operable into a 5000 ohm load or greater.

2

Calibrated at factory with a 24 VDC loop supply voltage and a 250 ohm load.

3

Operating temperature limits of the electronics only. Pressure media temperatures may be

considerably higher or lower.

4

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

5

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

Specications subject to change without notice.

6

NOT RECOMMENDED TO CONNECT VAC EXCITATION TO EARTH (SAFETY) GROUND

2.0 (1.8)

15 x Full Scale (50 psi), 10 x Full Scale
(75 x 150 psi), 8 x Full Scale (250 PSI)

Max. Line

Pressure

Transducer w/Hirschmann
Connector (AJ)

7.3
.29

31.8

1.25

19.4
.76

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

41.07

1.617

1/4" NPT MALE

HIRSCHMAN CONNECTOR

Transducer w/Packard
Connector (4M)

3 PIN PACKKARD
CONNECTOR

79.2

3.12

19.4
.76