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4114 Universal Transmitter

4114 Universal Transmitter

Quick Overview

The 4114 is a programmable universal transmitter suitable for Thermocouple, RTD, Resistance, mV, mA or Voltage inputs and 3.75 kVAC galvanic isolation. The unit converts the input into a configurable 0(4)-20mA or 0-10V output that is proportional and linear to the value of the input. Units are available with the 4501 programming display or the 4511 Modbus communications/programming interface. Universal AC or DC power supply.
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  • Linearised, electronic temperature measurement with RTD or TC sensor.
  • Conversion of linear resistance variation to a standard analogue current / voltage signal, i.e. from solenoids and butterfly valves or linear movements with attached potentiometer.
  • Power supply and signal isolator for 2-wire transmitters.
  • Process control with standard analogue output.
  • Galvanic separation of analogue signals and measurement of floating signals.
  • The 4114 is designed according to strict safety requirements and is thus suitable for application in SIL 2 installations.


  • Input for RTD, Thermocouples, Ohm, potentiometer, mA, mV and V
  • 2-wire supply > 16 V
  • FM-approved for installation in Div. 2
  • Output: 0(4)-20mA, 20-0(4)mA or 0-10V or 10-0V
  • Universal AC or DC supply
  • Programmable by way of detachable display front (4501), process calibration, signal simulation, password protection, error diagnostics and help text available in several languages.
  • Modbus RTU output via 4511 deteachable display


4501 Display / programming front


  • Communications interface for modification of operational parameters in 4114.
  • Can be moved from one 4114 module to another and download the configuration of the first converter to subsequent converters.
  • Fixed display for readout of process data and status

Technical characteristics:

  • LCD display with 4 lines; line 1 (H = 5.57 mm) shows input signal, line 2 (H = 3.33 mm) shows units. Line 3 alternates between digital output value and scaling (kHz, Hz, mHz, P/m, P/h, P/d) or shows TAG no. Line 4 shows tendency readout for the input signal and communication status.
  • Programming access can be blocked by assigning a password. The password is saved in the converter in order to ensure a high degree of protection against unauthorised modifications to the configuration.


4511 Modbus Communications Interface


  • The 4511 detachable display adds Modbus RTU RS485 serial communications to all current and future 4000/9000 series units
  • All individual unit operating parameters can easily and quickly be configured by using the Modbus communication or by using the front display menu
  • The 4511 display can be used to read the process signal, simulate the output signal, indicate sensor errors and interna device errors

Technical characteristics:

  • 4511 has full 4501 functionality for programming and display
  • RS485 Modbus RTU protocol 
  • Multi-drop half-duplex connection via shielded RJ45 connector on top of module
  • Modbus parameters such as address, baud rate, stop bit(s) and parity bits are configured from, and stored on, the 4511 interface
  • 2.5kVAC galvanic isolation between serial wiring and 4000/9000 units

If required, Omni Instruments will program a 4114, 4501 or 4511 to your specific requirements. Please contact us for details.

Availability: Stock Item


Components / Downloads

For further information, technical advice, or a quotation please call or email us. If you are not sure which product you need one of our technical sales advisors will be happy to discuss your application. We also accept company purchase orders by fax or post. Credit card orders can also be placed over the phone for any product.

PR 4114 Programmable Universal Transmitter
PR4114 Programmable Universal Transmitter with universal AC or DC power supply. Input: RTD; Thermocouples; Ohm; potentiometers; mA; V. Output: 0(4)-20mA; 0-10V. Galvanic isolation of inputs and outputs. Power supply 21.6 - 253vAC or 19.2 - 300vDC plus 16-25vDC auxiliary supply. DIN Rail mounted. Dimensions: 109 x 23.5 x 104mm. Operating Temperature -20 to +60 C, 0-95%RH (non-condensing).
View FileDatasheet
   Size: (358.61 KB)
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CJC Connectors
CJC Connector for Single channel units. CJC connector for channel 1. Can be used for 4114, 4116, 4131, 5114A, 5115A, 5116A, 5131A, 6331A, 6335A, 6337A, and 6350A.
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Detachable Keypad / Display / Programmer
4501 Programming display for systems 4000 and 9000 devices. Each 4501 display can be used on several different units to allow for modification/transfer of operation parameters or on an individual unit as a fixed display for readout of process data and status. The 4501 display clicks onto the front of the units are is interchangeable between units for programming or display.
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Detachable Communication Interfaces
4511 Programming display and Modbus RTU protocol interface for systems 4000 and 9000 devices. Each 4511 display can be used on several different units to allow for modification/transfer of operation parameters or on an individual unit as a fixed display for readout of process data and status, plus as an RS485 Modbus RTU connection to a local network. The 4511 display clicks onto the front of the device and an RJ45 connector on top of the unit allows for connection to a Modbus network.
View FileDatasheet
   Size: (311.08 KB)
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PR Custom Configuration
Complete programming and configuration of programmable PR units to client specifications prior to shipping.
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