The MTT MS3710-01 is a 4-wire version of the plug-in potentiometer transmitter, built for applications where the sensor sits some distance from the panel. By carrying the excitation current and the measurement signal on separate pairs of wires, it cancels out the voltage drop that would otherwise build up along long lead runs, so the reading stays accurate even when the potentiometer is mounted well away from its transmitter.
Like the rest of the plug-in transmitter series, the MS3710-01 clips into its own socket base, so a unit can be swapped out for calibration or replacement in seconds without disturbing the field wiring. It offers a choice of current or voltage outputs, with a second isolated output available for feeding a separate control or monitoring system, and flexible AC or DC power plus wall or DIN rail mounting make it straightforward to fit into an existing panel.
| Input Type | 4-wire potentiometer, 300Ω max. total resistance |
| Input Range | Selectable 50Ω to 200Ω in 50Ω increments |
| Excitation Current | Approximately 1mA |
| Lead Wire Resistance | 50kΩ max. per wire |
| Output | Current (0-20mA, 4-20mA) or voltage (10mV to ±10V ranges); optional second isolated output |
| Output Load | 750Ω max. (4-20mA single); 550Ω/350Ω max. (dual current); 10kΩ min. to 100kΩ min. (voltage, range dependent) |
| Isolation | 4-way isolation between input, output 1, output 2, and power |
| Insulation Resistance | 100MΩ min. at 500V DC |
| CMRR | 100dB min. (500V AC, 50/60Hz) |
| Power Supply | 100-240V AC, 24V DC (±10%), or 100-240V DC |
| Power Consumption | 5.5VA max. (AC), 1.6W max. (24V DC), 6.0W max. (DC), single output |
| Accuracy | Better than ±0.25% of span (at 25°C±5°C) |
| Temperature Effect | Better than ±0.2% of span per 10°C change |
| Response Time | 170ms max. (0-90%); 10ms max. with /K option |
| Adjustments | ±5% span zero and span trimmers |
| Dimensions | W29 × H86 × D125mm |
| Weight | 120g max. (main unit), plus 80g max. socket |
| Mounting | Wall or DIN rail mounting |
| Terminals | M3.5 screw terminals, 0.8-1.0 Nm torque |
| Operating Temperature | -5 to 55°C |
| Operating Humidity | 5 to 90% RH, non-condensing |
Frequently Asked Questions
What is the MTT MS3710-01 used for?
It reads a 4-wire potentiometer and converts its resistance into a standard current or voltage output, in an application where the potentiometer is far enough from the panel that lead resistance would otherwise affect accuracy.
What’s the difference between the MS3710-01 and the standard MS3710?
The standard MS3710 uses a simpler 2 or 3-wire connection suited to shorter cable runs. The MS3710-01 uses a 4-wire connection that cancels out lead wire voltage drop, so it stays accurate even with long cable runs between the potentiometer and the transmitter.
How does the 4-wire connection improve accuracy over distance?
It carries the excitation current and the measurement signal on separate wire pairs, so the resistance of the lead wires themselves doesn’t add error to the reading, unlike a 2-wire connection where lead resistance is indistinguishable from the sensor’s own resistance.
Can the MS3710-01 provide two separate outputs?
Yes — a second isolated output is available, so one potentiometer can feed a control loop and a separate monitoring or logging system at the same time.
How do I know if I need the 4-wire MS3710-01 instead of the standard MS3710?
If your potentiometer sensor is mounted more than a few metres from the transmitter, or you’re already seeing drift you suspect is from lead resistance, the MS3710-01 is the right choice. Send us your cable run length and we can confirm.
Download MTT MS3710-01 Slim Plug-In 4-Wire Potentiometer Transmitter information here
Spec Sheet: MTT MS3710-01 Spec Sheet
Manual: MTT MS3710-01 Manual
