The MTT MS3110 is a terminal block type potentiometer transmitter with two independent, isolated outputs. It accepts an input resistance range of 0~100Ω to 0~10kΩ, using a measuring voltage of approximately 0.5V. Lead wire resistance is tolerated up to 10% or less of total resistance per wire.
Output 1 and output 2 are independently configurable to current (0~20mA, 4~20mA) or voltage (10mV-20V) – useful when one signal needs to feed a PLC and a second, separate signal needs to feed a recorder or indicator at the same time. Output 1 zero is adjustable over approximately 0-30% of total resistance and span over 70-100%; output 2 zero and span are each adjustable by about ±5% of span. Accuracy is better than ±0.2% of span at 25°C±5°C, with temperature effect of ±0.2% of span per 10°C change. Standard response time is 170ms max (0 to 90%); a /K option brings this down to 10ms max. CMRR is 100dB min (500V AC, 50/60Hz).
There is 5-way isolation between input, output 1, output 2, power, and ground, with dielectric strength of 2000V AC for 1 minute (500V AC between outputs) and insulation resistance of 100MΩ min at 500V DC.
Power supply is flexible: 100-240V AC, 24V DC, or 110V DC, drawing 7.0VA (AC), 1.5W (24V DC), or 2.5W (110V DC). The unit mounts on DIN rail with M3.5 screw terminals, in an ABS resin (UL 94V-0) enclosure measuring W49.8 × H102.0 × D40.0mm and weighing under 140g.
| Input Resistance Range | 0-100Ω to 0-10kΩ |
| Measuring Voltage | Approx. 0.5V |
| Lead Wire Resistance | 10% or less of total resistance per wire |
| Output 1 & 2 | Current (0-20mA, 4-20mA) or voltage (10mV-20V), independently configurable |
| Zero Adjustment | Output 1: approx. 0-30% of total resistance; Output 2: approx. ±5% of span |
| Span Adjustment | Output 1: approx. 70-100% of total resistance; Output 2: approx. ±5% of span |
| Accuracy | Better than ±0.2% of span (at 25°C±5°C) |
| Response Time | 170ms max. (0 to 90%); 10ms max. with /K option |
| Temperature Effect | Better than ±0.2% of span per 10°C change |
| CMRR | 100dB min. (500V AC, 50/60Hz) |
| Power Supply | 100-240V AC, 24V DC, or 110V DC |
| Power Consumption | 7.0VA (AC), 1.5W (24V DC), 2.5W (110V DC) |
| Isolation | 5-way isolation between input, output 1, output 2, power, and ground |
| Insulation Resistance | 100MΩ min. (@ 500V DC) |
| Dielectric Strength | 2000V AC for 1 minute (500V AC between outputs) |
| Enclosure / Mounting | ABS resin (UL 94V-0), DIN rail mounting, M3.5 screw terminal |
| Dimensions | W49.8 × H102.0 × D40.0 mm |
| Weight | 140g max. |
| Operating Temperature | -5 to 55°C, 5-90% RH non-condensing |
| Storage Temperature | -10 to 60°C |
Frequently Asked Questions
What is the MS3110 used for?
It converts a potentiometric sensor’s changing resistance — such as a valve position feedback or float-type level sensor — into two independent, isolated DC outputs, so one measurement can feed two separate systems.
Can the MS3110 be used with AC power instead of 24V DC?
Yes. The MS3110 accepts 100-240V AC, 24V DC, or 110V DC, so it can be powered directly from panels that don’t have a dedicated 24V DC supply.
What’s the difference between the MS3110 and the MS3010?
The MS3110 gives two independent isolated outputs from one potentiometer input and can run on AC or DC power. The MS3010 is a single-output transmitter powered only by 24V or 12V DC. Choose the MS3110 when the same position or level reading needs to feed two separate devices, or when only AC mains power is available at the panel.
How do I know which MS3110 configuration I need?
It depends on your potentiometer’s resistance range, the output ranges needed on Output 1 and Output 2, and your available power supply. We’re happy to confirm the right configuration before you order.
Download MTT MS3110 Terminal Block Type Potentiometer Transmitter information here
Datasheet: MTT_SpecSheet_MS3110_Rev200_E
Manual: MTT_Manual_MS3110_Rev160_E
