Setra Systems Multi-Sense 231RS User manual

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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 out-
puts 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
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

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.
Multi-Sense®Model 231RS
Multi-Congurable, Wet-to-Wet Differential Pressure Transducer
GENERAL SPECIFICATIONS
Electrical Data (Voltage) Performance Data
Circuit 3-Wire Accuracy RSS4 (at constant temp.)
Excitation 15 to 30VDC/18 to 30VAC6(Reverse
Excitation Protected) Pressure Ranges A, B, C ±1.0% FS
Output10 to 5 VDC, 0 to 10 VDC, 1 to 5VDC Pressure Ranges D ±2.0% FS
Output Impedance 30 Ohms Pressure Ranges (Selection Example, Pg 4.)
Circuit Consumption 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 Max. Line
Pressure
RS1 50 25 10 5 50
Electrical Data (Current) RS2 75 37.5 15 7.5 75
Circuit 2-wire (Reverse Excitation Protected) RS3 100 50 20 10 100
Output24 to 20 mA RS4 150 75 30 15 150
External Load 0 to 250 Ohms RS5 250 125 50 25 250
Min. Supply Voltage 15 VDC + 0.02 x Resistance of receiver
plus line) Pressure Media
Max. Supply Voltage 30 VDC + 0.004 x Resistance of receiver
plus line)
Liquids or Gases Compatible with 17-4 PH Stainless Steel
Note: Hydrogen not recommended for use with 17-4 PH stainless steel
Physical Description Thermal Eects5
Case Die Cast Aluminum, Powder Coated Compensated Range °F (°C) +32 to +130 (0 to +54)
Pressure Fittings 1/4-18 NPT Male Zero/Span Shift %FS/100°F
(50°C) 2.0 (1.8)
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 Burst Pressure 15 x Full Scale (50 psi), 10 x Full Scale
(75 x 150 psi), 8 x Full Scale (250 PSI)
Operating3Temperature °F (°C) -4 to +185 (-20 to -85) 1Calibrated 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 RECOMMENDEDTO CONNECTVAC EXCITATION TO EARTH (SAFETY) GROUND
Storage Temperature °F (°C) -4 to +185 (-20 to +85)
Vibration 10g from 50Hz to 2000 Hz
Shock 200g
Transducer w/Hirschmann
Connector (AJ)
Transducer w/Conduit (3M)
1/2 inch Conduit Opening
Transducer w/Packard
Connector (4M)
REMOTE SENSOR
DIMENSIONS
41.07
1.617
31.8
1.25
19.4
.76
7.3
.29
1/4" NPT MALE
HIRSCHMAN CONNECTOR
19.4
.76
79.2
3.12
3 PIN PACKKARD
CONNECTOR
91.78
3.61
19.4
.76
41.07
1.617
1/4" NPT MALE
1/2" CONDUIT
COVER

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.
Side View
Bottom View
Front View
Multi-Sense®Model 231RS
Multi-Congurable, Wet-to-Wet Differential Pressure Transducer
DIMENSIONS
Conduit Version Cable Version
Bottom View
Valve A1
High
Low Pressure
Remote Sensor
High Pressure
Remote Sensor Valve B1
Low
Valve A = High Side Valve
Valve B = Low Side Valve
1. Valves not included.
Pipe
Pipe
INSTALLATION
Model 231RS
5.56
141.2
6.00
152.4
R .10
2.5
.35
8.8
2.00
50.8
1.22
31
1.66
42.2
1.56
39.6
.95
24.1
5.16
131.1
1/2" CONDUIT
OPENING
HI (+) LO (-)
1.98
50.3
4.00
102
4.87
123.6
5.08
129
Side View
Front View

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.
Multi-Sense®Model 231RS
Multi-Congurable, Wet-to-Wet Differential Pressure Transducer
ORDERING INFORMATION
2 3 1 G
Ordering Example: 231GRS44MN10 = Model 231RS w/Range Code RS4, 1/4-18 NPT Ext. Remote Sensor (Cable Version) , No Display, 10ft. Cable 1
NOTE: NOT RECOMMENDED TO CONNECT VAC EXCITATION TO EARTH (SAFETY) GROUND
Model Range Specication1Pressure Connection Display Cable2
231G = 231RS Unidirectional Bidirectional 3M 1/4-18 NPT Ext. Remote Sensor
(Conduit Version- No Cable Provided) N No Display 10 10ft
RS1 5, 10, 25, 50 PSID ±5, ±10, ±25, ±50 PSID 4M 1/4-18 NPT Ext. Remote Sensor
(Cable Version) D LCD Display 20 20ft
RS2 7.5, 15, 37.5, 75 PSID ±7.5, ±15, ±37.5, ±75 PSID AJ 1/4-18 NPT Ext. Remote Sensors
(Armored Jacket Version) 30 30ft
RS3 10, 20, 50, 100 PSID ±10, ±20, ±50, ±100 PSID
1For higher ranges contact factory.
2 Cable lengths only available with Pressure Connection
Code 4M (up to 30 ft) and AJ (up to 50 ft).
3Only available on Armored Jacket Pressure Connection
40 40ft
RS4 15, 30, 75, 150 PSID ±15, ±30, ±75, ±150 PSID 50 50ft
RS5 25, 50, 125, 250 PSID ±25, ±50, ±125, ±250 PSID
SSP231RS REV. K 04/2017
Examine the pressure application and determine what is the Highest System Line Pressure.
Determine what is the Dierential 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
Dierential 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
Range
Code A B C D Max. Line Pressure
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
PRESSURE RANGE CODE SELECTOR (IMPORTANT: READ BEFORE ORDERING)