UE One Series SIL-Certified Safety Transmitter-Switch

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Price $1,475.00

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Programmable pressure, differential pressure, and temperature transmitter-switch with safety relay output. Front-panel display and keypad adjustment, I Am Working self-diagnostics, NEMA 4X/IP66 epoxy-coated aluminum alloy 360 enclosure with tempered glass window, SIL-2 certified, SIL-3 capable UL listed, cUL certified, CSA approved, CE compliant.

United Electric's One Series Safety Transmitter was designed to simplify installation, improve productivity, and eliminate nuisance trips. The One Series Safety Transmitter is certified for use in SIL 2 functional safety applications (HFT=0), and is capable of SIL 3 applications when augmented by redundancy and voting logic.

These new combination transmitter/switches feature "I Am Working" sensor diagnostics with redundant data processing detect open, shorted, and plugged sensing elements. Their analog output conforms to the NAMUR NE 43 standard and provides process variable and detected-fault information. Discrete outputs provide a fail-safe (open) emergency shutdown when a fault is detected. Solid state relay setpoint and deadband are programmable over 100% of span. And its programmable high-capacity solid-state safety relay output enables the fastest emergency shutdowns.

  • Pressure ranges: -14.7 to 30 PSIG to 0-6000 PSIG, Differential pressure ranges: 0-5 to 0-200 PSID, Temperature ranges:-40° to 450°, 900° or 1000° F, -300° to 200° F, depending on mounting configuration
  • Type 4X/IP66 polyester-painted aluminum alloy 360 enclosure with UV-resistant pressure sensitive keypad and display faceplate
  • Explosion-proof, flameproof approvals for Class I, Groups A-D, Class II, Groups E-G, Class III, and Class I, Zone 1
  • 4-20 mA analog output compliant to NAMUR NE 43
  • User-configured solid state safety relay output, adjustable over entire sensor range
  • Two-wire loop power or 24 VDC external power
  • Configurable "I Am Working" self-diagnostics and solid state electronics
  • Certified for SIL-2 and SIL-3 applications

Model Selection Guide

Use this table to find the right model for your application. Looking for other ranges or configurations? Don't see the option you need? Call a Lesman sales specialist at 800-953-7626.

Description Catalog
One Series Field Safety System, 2-Wire Loop or 24V External Power, 4-20 mA Output, Two Status Switch Outputs Rated 30 VDC, 20 mA Max.
Solid State Relay Rated @ 250 VAC, 5 Amp
Solid State Relay Rated @ 30 VDC, 6 Amp
Solid State Relay Rated @ 130 VDC, 2.5 Amp

Sensor Type and
Range Selection
Pressure Sensor, 316L Stainless Steel, Welded Diaphragm, 1/2" NPTF
Differential Pressure Sensor, 316L Stainless Steel, Welded Diaphragm, 1/4" NPTM
Temperature Sensor, 100Ω RTD, 316SS Sheath, 0.25" OD


Range Max. Overrange  
-14.7 to 30 PSI
-14.7 to 100 PSI
0-5.00 PSI
0-15.00 PSI
0-30.00 PSI
0-50.00 PSI
0-100.0 PSI
0-300.0 PSI
0-500.0 PSI
0-1000 PSI
0-3000 PSI
0-4500 PSI
0-6000 PSI
60 PSI
200 PSI
10 PSI
30 PSI
60 PSI
100 PSI
200 PSI
600 PSI
1000 PSI
2000 PSI
6000 PSI
9000 PSI
12000 PSI
-_ 06
-_ 08
-_ 10
-_ 11
-_ 12
-_ 13
-_ 14
-_ 15
-_ 16
-_ 17
-_ 18
-_ 19
-_ 20

0-5.000 PSID
0-50.00 PSID
0-100.0 PSID
0-200.0 PSID
100 PSID
200 PSID
400 PSID
-_ 10
-_ 11
-_ 12
-_ 13

Temperature Range and Configuration
Stem-Mount Sensor
-40° to 450°F, 4" probe length
-40° to 450°F, 6" probe length
-40° to 450°F, 10" probe length
-_ L1
-_ L2
-_ L3

Remote Sensor
Fixed Cable Length
-300° to 200°F, 2.5" probe length, 6' MI cable
-40° to 450°F, 6" probe length, 6' Teflon® cable
-40° to 1000°F, 2.5" probe length, 6' MI cable
-_ C1
-_ R1
-_ H1

Remote Sensor
Custom Cable Length
(Specify When Ordering)
-300° to 200°F, 2.5" probe length, up to 30' MI extension cable
-40° to 450°F 6" probe length, up to 30' Teflon® extension cable
-40° to 1000°F, 2.5" probe length, up to 30' MI extension cable
-_ CC
-_ RC
-_ HC

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More Information
SIL-Rated Yes
Measured Variable Differential Pressure, Gauge Pressure, Temperature
Enclosure/Construction NEMA 4X, Div 1 Hazardous, Div 1 Zone 1 Hazardous, Div 2 Hazardous
Switch Output SPST, MOSFET/SSR, 4-20 mA, HART
Sensor Type RTD, Strain Gage
Adjustment External Adjustment
Measuring Range -14.7 to 30 PSIG to 0-6000 PSIG, 0-5 to 0-200 PSID, -300° to 1000° F

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