The MTT MS3770 Slim Plug-In Split-Range Transmitter takes a single DC current or voltage input and divides it into two separate, isolated output signals, each covering a defined portion of the input range. This is the standard building block for split-range control strategies, such as driving a heating valve over the lower half of a controller’s output and a cooling valve over the upper half, letting one control loop coordinate two final control elements without additional PLC logic.
Each output’s split point is independently adjustable, and the module can be configured for either a V-shaped or parallel output characteristic depending on how the two actuators need to hand off from one another. Front-accessible trimmers provide zero adjustment for fine calibration, and four-way galvanic isolation between input, both outputs, and power keeps each split-range signal clean and protected from noise and ground loops as it is distributed to its respective actuator.
| Input Types | 4-20mA DC, 0-10V DC, or 1-5V DC |
| Input Resistance | 1MΩ min. (voltage); 250Ω (4-20mA current) |
| Max Allowable Input | 30V DC (voltage); 40mA DC (current) |
| Output Types | 4-20mA DC, 0-10V DC, or 1-5V DC (dual isolated outputs) |
| Max Output Load | 2mA (voltage output); 600Ω (current output) |
| Zero Adjustment | ±1% of span via front-accessible trimmer |
| Split Range | Output 1 adjustable over 0-65% of input range; Output 2 adjustable over 35-100% of input range |
| Output Characteristic | Selectable V-shaped or parallel split-range configuration |
| Accuracy | Better than ±0.3% of span (at 25°C±5°C) |
| Temperature Effect | ±0.2% of span per 10°C change |
| Response Time | 500ms max (0-90%) |
| CMRR | 100dB min. |
| Isolation | 4-way isolation between input, Output 1, Output 2, power, and ground; 100MΩ min. insulation resistance @500V DC; 2000V AC dielectric strength for 1 minute |
| Power Supply | 100-240V AC (85-264V, 47-63Hz), 24V DC ±10%, or 100-240V DC (85-264V); 6.5VA max (AC) / 2.0W max (24V DC) / 2.5W max (DC) |
| Dimensions | W29 x H86 x D125mm |
| Weight | 120g (main unit) / 80g (socket) |
| Terminals | M3.5 screw terminals, 0.8-1.0 Nm torque |
| Mounting | Wall or DIN rail mount |
| Operating Conditions | -5 to 55°C, 5-90% RH non-condensing |
| Storage Temperature | -10 to 60°C |
Frequently Asked Questions
What is the MTT MS3770 used for?
It takes a single DC current or voltage input and divides it into two separate, isolated output signals, each covering a defined portion of the input range. It’s the standard building block for split-range control strategies, such as driving a heating valve over the lower half of a controller’s output and a cooling valve over the upper half, letting one control loop coordinate two final control elements without additional PLC logic.
How is the split point set?
Each output’s split point is independently adjustable: Output 1 over 0-65% of the input range and Output 2 over 35-100%, so the two ranges can overlap or sit back-to-back depending on how your process needs the transition handled.
What’s the difference between V-shaped and parallel configuration?
The module can be configured for either a V-shaped split (where both outputs move in a converging pattern) or a parallel split-range configuration, depending on how your two final control elements need to respond across the input range. Tell us your control strategy and we can confirm which configuration fits.
What input and output signal types does it accept?
Input accepts 4-20mA DC, 0-10V DC, or 1-5V DC, and output is available in the same three types, dual isolated outputs. Tell us your controller’s output signal and your two final control elements’ input requirements and we can confirm the setup.
How do I know if the MS3770 is right for my application?
If a single controller output needs to drive two final control elements across different portions of its range, such as a heat/cool valve pair, the MS3770 splits that signal without extra PLC logic. Send us your input signal and your two output requirements and we can confirm before you order.
Download MTT MS3770 Slim Plug-In Split-Range Transmitter information here
Spec Sheet: MTT_SpecSheet1_MS3770_Rev120_E
Manual: MTT_Manual1_MS3770_Rev110_E
