Voltage(V) & Miliamp(mA) Outputs

Select products by Output then Input and then Function.

The number of wires (e.g. 3-Wire) listed refers to the number of connections to power the Transmitter and connect the output.

Find a Product Output ⇒ Function ⇒ Input

dc mA/V 3-Wire
- dc mA/V 3-Wire, Select a Function
- ac Transducer
  - dc mA/V 3-Wire ac Transducer, Select Input Group
  - ac A
    - dc mA/V 3-Wire ac Transducer ac A, Select Product
    - ACT241 ac Current Transducer
  - ac V
    - dc mA/V 3-Wire ac Transducer ac V, Select Product
    - AVT245 ac Voltage Transducer
- Isolator
  - dc mA/V 3-Wire Isolator, Select Input Group
  - ac A
    - dc mA/V 3-Wire Isolator ac A, Select Product
    - ACT241 ac Current Transducer
  - ac V
    - dc mA/V 3-Wire Isolator ac V, Select Product
    - SI239 Signal Isolator
    - AVT245 ac Voltage Transducer
  - 4-20mA
    - dc mA/V 3-Wire Isolator 4-20mA, Select Product
    - SI231 Signal Isolator
    - SI239 Signal Isolator
  - dc mA/V
    - dc mA/V 3-Wire Isolator dc mA/V, Select Product
    - SI231 Signal Isolator
    - SI239 Signal Isolator
  - mV
    - dc mA/V 3-Wire Isolator mV, Select Product
    - MVT223 Millivolt Transmitter
    - SI239 Signal Isolator
  - RTD
    - dc mA/V 3-Wire Isolator RTD, Select Product
    - RTDT225 RTD Temperature Transmitter
  - Thermocouple
    - dc mA/V 3-Wire Isolator Thermocouple, Select Product
    - TCT226 Thermocouple Transmitter
  - Conductivity
    - dc mA/V 3-Wire Isolator Conductivity, Select Product
    - CDT228 Conductivity Transmitter
  - pH/REDOX
    - dc mA/V 3-Wire Isolator pH/REDOX, Select Product
    - PHT229 pH / Redox Transmitter
  - Resistance
    - dc mA/V 3-Wire Isolator Resistance, Select Product
    - RT243 Resistance Transmitter
  - Speed/ Frequency/ Pulse
    - dc mA/V 3-Wire Isolator Speed/ Frequency/ Pulse, Select Product
    - FRT250 Frequency Transmitter
  - Strain Gauge
    - dc mA/V 3-Wire Isolator Strain Gauge, Select Product
    - WT227 Strain Gauge Transmitter
- Transmitter
  - dc mA/V 3-Wire Transmitter, Select Input Group
  - ac A
    - dc mA/V 3-Wire Transmitter ac A, Select Product
    - ACT241 ac Current Transducer
  - ac V
    - dc mA/V 3-Wire Transmitter ac V, Select Product
    - SI239 Signal Isolator
    - AVT245 ac Voltage Transducer
  - 4-20mA
    - dc mA/V 3-Wire Transmitter 4-20mA, Select Product
    - SI231 Signal Isolator
    - SI239 Signal Isolator
  - dc mA/V
    - dc mA/V 3-Wire Transmitter dc mA/V, Select Product
    - SI231 Signal Isolator
    - SI239 Signal Isolator
  - mV
    - dc mA/V 3-Wire Transmitter mV, Select Product
    - MVT223 Millivolt Transmitter
    - SI239 Signal Isolator
  - RTD
    - dc mA/V 3-Wire Transmitter RTD, Select Product
    - RTDT225 RTD Temperature Transmitter
  - Thermocouple
    - dc mA/V 3-Wire Transmitter Thermocouple, Select Product
    - TCT226 Thermocouple Transmitter
  - Conductivity
    - dc mA/V 3-Wire Transmitter Conductivity, Select Product
    - CDT228 Conductivity Transmitter
  - pH/REDOX
    - dc mA/V 3-Wire Transmitter pH/REDOX, Select Product
    - PHT229 pH / Redox Transmitter
  - Potentiometer
    - dc mA/V 3-Wire Transmitter Potentiometer, Select Product
    - SWT240 Resistance Transmitter
  - Pressure
    - dc mA/V 3-Wire Transmitter Pressure, Select Product
    - PIC246 Pressure to Current Converter
  - Resistance
    - dc mA/V 3-Wire Transmitter Resistance, Select Product
    - RT243 Resistance Transmitter
  - Speed/ Frequency/ Pulse
    - dc mA/V 3-Wire Transmitter Speed/ Frequency/ Pulse, Select Product
    - FRT250 Frequency Transmitter
  - Strain Gauge
    - dc mA/V 3-Wire Transmitter Strain Gauge, Select Product
    - WT227 Strain Gauge Transmitter
dc mA/V 4-Wire
- dc mA/V 4-Wire, Select a Function
- ac Transducer
  - dc mA/V 4-Wire ac Transducer, Select Input Group
  - ac A
    - dc mA/V 4-Wire ac Transducer ac A, Select Product
    - SL345 AC and Bipolar Isolator
    - DCT247 Dc Current Transducer
    - ACT284 ac Transducer
    - ACT141 ac Current Transducer
  - ac Power
    - dc mA/V 4-Wire ac Transducer ac Power, Select Product
    - AWT190 Ac Active Power Transducer
    - ART191 Ac Active VAR Transducer
    - AVAT192 ac Active VA Transducer
    - APT193 Ac Active Phase Angle Trans.
  - ac V
    - dc mA/V 4-Wire ac Transducer ac V, Select Product
    - SL345 AC and Bipolar Isolator
    - SL350 Pulse Frequency Transmitter
    - ACT284 ac Transducer
    - AVT145 Ac Voltage Transmitter
  - dc A
    - dc mA/V 4-Wire ac Transducer dc A, Select Product
    - SL345 AC and Bipolar Isolator
    - DCT247 Dc Current Transducer
  - dc mA/V
    - dc mA/V 4-Wire ac Transducer dc mA/V, Select Product
    - SL345 AC and Bipolar Isolator
  - Speed/ Frequency/ Pulse
    - dc mA/V 4-Wire ac Transducer Speed/ Frequency/ Pulse, Select Product
    - SL350 Pulse Frequency Transmitter
- Alarm
  - dc mA/V 4-Wire Alarm, Select Input Group
  - ac A
    - dc mA/V 4-Wire Alarm ac A, Select Product
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
  - ac V
    - dc mA/V 4-Wire Alarm ac V, Select Product
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
  - Signal Powered
    - dc mA/V 4-Wire Alarm Signal Powered, Select Product
    - STI136 Single Trippoint Isolator
  - 4-20mA
    - dc mA/V 4-Wire Alarm 4-20mA, Select Product
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
  - dc mA/V
    - dc mA/V 4-Wire Alarm dc mA/V, Select Product
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
  - mV
    - dc mA/V 4-Wire Alarm mV, Select Product
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
  - RTD
    - dc mA/V 4-Wire Alarm RTD, Select Product
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
  - Thermocouple
    - dc mA/V 4-Wire Alarm Thermocouple, Select Product
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
  - Potentiometer
    - dc mA/V 4-Wire Alarm Potentiometer, Select Product
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
  - Resistance
    - dc mA/V 4-Wire Alarm Resistance, Select Product
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
  - Speed/ Frequency/ Pulse
    - dc mA/V 4-Wire Alarm Speed/ Frequency/ Pulse, Select Product
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
- Isolator
  - dc mA/V 4-Wire Isolator, Select Input Group
  - ac A
    - dc mA/V 4-Wire Isolator ac A, Select Product
    - SL345 AC and Bipolar Isolator
    - DCT247 Dc Current Transducer
    - ACT284 ac Transducer
    - ACT141 ac Current Transducer
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
  - ac V
    - dc mA/V 4-Wire Isolator ac V, Select Product
    - SL345 AC and Bipolar Isolator
    - SL350 Pulse Frequency Transmitter
    - ACT284 ac Transducer
    - AVT145 Ac Voltage Transmitter
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
    - SI139 Signal Isolator
  - Signal Powered
    - dc mA/V 4-Wire Isolator Signal Powered, Select Product
    - STI136 Single Trippoint Isolator
  - 4-20mA
    - dc mA/V 4-Wire Isolator 4-20mA, Select Product
    - SL332 Signal Isolator
    - SL335 Signal Splitter
    - SL339 Signal Isolator
    - SSP235 Signal Splitter
    - HVI237 5KV Isolator
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
    - SI139 Signal Isolator
  - dc A
    - dc mA/V 4-Wire Isolator dc A, Select Product
    - SL345 AC and Bipolar Isolator
    - DCT247 Dc Current Transducer
    - SI139 Signal Isolator
  - dc mA/V
    - dc mA/V 4-Wire Isolator dc mA/V, Select Product
    - SL332 Signal Isolator
    - SL335 Signal Splitter
    - SL339 Signal Isolator
    - SL345 AC and Bipolar Isolator
    - SSP235 Signal Splitter
    - HVI237 5KV Isolator
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
    - SI139 Signal Isolator
  - mV
    - dc mA/V 4-Wire Isolator mV, Select Product
    - SL340 Universal Transmitter
    - SSP235 Signal Splitter
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
    - SI139 Signal Isolator
  - RTD
    - dc mA/V 4-Wire Isolator RTD, Select Product
    - SL340 Universal Transmitter
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
  - Thermocouple
    - dc mA/V 4-Wire Isolator Thermocouple, Select Product
    - SL340 Universal Transmitter
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
    - TCT286 Thermocouple Transmitter/Isolator
  - Conductivity
    - dc mA/V 4-Wire Isolator Conductivity, Select Product
    - CDT128 Conductivity Transmitter
  - pH/REDOX
    - dc mA/V 4-Wire Isolator pH/REDOX, Select Product
    - PHT129 pH / Redox Transmitter
  - Position
    - dc mA/V 4-Wire Isolator Position, Select Product
    - TPT194 Tap Position Transducer
  - Potentiometer
    - dc mA/V 4-Wire Isolator Potentiometer, Select Product
    - SL340 Universal Transmitter
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
    - SI139 Signal Isolator
  - Resistance
    - dc mA/V 4-Wire Isolator Resistance, Select Product
    - SL340 Universal Transmitter
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
  - Speed/ Frequency/ Pulse
    - dc mA/V 4-Wire Isolator Speed/ Frequency/ Pulse, Select Product
    - SL350 Pulse Frequency Transmitter
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
  - Strain Gauge
    - dc mA/V 4-Wire Isolator Strain Gauge, Select Product
    - SL340 Universal Transmitter
    - WT127 Strain Gauge Transmitter
- Transmitter
  - dc mA/V 4-Wire Transmitter, Select Input Group
  - ac A
    - dc mA/V 4-Wire Transmitter ac A, Select Product
    - SL345 AC and Bipolar Isolator
    - DCT247 Dc Current Transducer
    - ACT284 ac Transducer
    - ACT141 ac Current Transducer
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
  - ac V
    - dc mA/V 4-Wire Transmitter ac V, Select Product
    - SL345 AC and Bipolar Isolator
    - SL350 Pulse Frequency Transmitter
    - ACT284 ac Transducer
    - AVT145 Ac Voltage Transmitter
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
    - SI139 Signal Isolator
  - Signal Powered
    - dc mA/V 4-Wire Transmitter Signal Powered, Select Product
    - STI136 Single Trippoint Isolator
  - 4-20mA
    - dc mA/V 4-Wire Transmitter 4-20mA, Select Product
    - SL332 Signal Isolator
    - SL335 Signal Splitter
    - SL339 Signal Isolator
    - SSP235 Signal Splitter
    - HVI237 5KV Isolator
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
    - SI139 Signal Isolator
  - dc A
    - dc mA/V 4-Wire Transmitter dc A, Select Product
    - SL345 AC and Bipolar Isolator
    - DCT247 Dc Current Transducer
    - SI139 Signal Isolator
  - dc mA/V
    - dc mA/V 4-Wire Transmitter dc mA/V, Select Product
    - SL332 Signal Isolator
    - SL335 Signal Splitter
    - SL339 Signal Isolator
    - SL345 AC and Bipolar Isolator
    - SSP235 Signal Splitter
    - HVI237 5KV Isolator
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
    - SI139 Signal Isolator
  - mV
    - dc mA/V 4-Wire Transmitter mV, Select Product
    - SL340 Universal Transmitter
    - SSP235 Signal Splitter
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
    - SI139 Signal Isolator
  - RTD
    - dc mA/V 4-Wire Transmitter RTD, Select Product
    - SL340 Universal Transmitter
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
  - Thermocouple
    - dc mA/V 4-Wire Transmitter Thermocouple, Select Product
    - SL340 Universal Transmitter
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
    - TCT286 Thermocouple Transmitter/Isolator
  - Conductivity
    - dc mA/V 4-Wire Transmitter Conductivity, Select Product
    - CDT128 Conductivity Transmitter
  - pH/REDOX
    - dc mA/V 4-Wire Transmitter pH/REDOX, Select Product
    - PHT129 pH / Redox Transmitter
  - Position
    - dc mA/V 4-Wire Transmitter Position, Select Product
    - TPT194 Tap Position Transducer
  - Potentiometer
    - dc mA/V 4-Wire Transmitter Potentiometer, Select Product
    - SL340 Universal Transmitter
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
    - SI139 Signal Isolator
  - Pressure
    - dc mA/V 4-Wire Transmitter Pressure, Select Product
    - PIC176 Pressure To Current Converter
  - Resistance
    - dc mA/V 4-Wire Transmitter Resistance, Select Product
    - SL340 Universal Transmitter
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
  - Speed/ Frequency/ Pulse
    - dc mA/V 4-Wire Transmitter Speed/ Frequency/ Pulse, Select Product
    - SL350 Pulse Frequency Transmitter
    - DTI135 Dual Trippoint Isolator
    - STI136 Single Trippoint Isolator
    - RAF185 Ramp Function
  - Strain Gauge
    - dc mA/V 4-Wire Transmitter Strain Gauge, Select Product
    - SL340 Universal Transmitter
    - WT127 Strain Gauge Transmitter
Select an Output (above)

Select products by Output then Input and then Function.

The number of wires (e.g. 3-Wire) listed refers to the number of connections to power the Transmitter and connect the output.

dc mA/V 3-Wire Output

Three Wire output or 3-wire transmitters have one power supply terminal in common with the output signal.

These transmitters can support zero based output signals
As the power is supplied separately output drive and produce auxiliary outputs to support input sensors such as load-cells are possible.
Three wire transmitters are available with and without Input to output isolation.

dc mA/V 4-Wire Output

Separately Powered or 4-wire transmitters are transmitters, isolators or converters requiring a separate power supply to operate.

The input signal is converted or isolated and re-powered to give a high-drive output signal. The transmitter becomes the source for the process signal.

The fully isolated supply has no galvanic connection between input and output. Most APCS products have a fully isolated supply on auxiliary powered units.
The Partially isolated supply will have some connection between input output or both. The APCS power drivers - PD121 and PD122 require a separate power supply to provide the necessary isolation path.

Only an isolator that provides true 3-way galvanic isolation will isolate all three paths supply, input and output.

Input or Signal Powered Transmitters

The 0-5V output signal is derived from the measured variable. This represents a load on the measured signal. In the case of a high current CT this load is minimual.