The MTT MS3704W is a slim plug-in high-level signal conditioner with two isolated outputs that can each be set to a different signal type and range, rather than mirroring one another. That means a single input, such as a 4-20mA current loop, can simultaneously feed one output configured as 4-20mA for a control system and a second output configured as 0-5V for a separate recorder or display, without needing two separate conditioners.
Both outputs stay isolated from each other, the input, and the power supply, keeping the two downstream circuits fully independent. Like the rest of the plug-in transmitter range, the MS3704W clips into its own socket base so the unit can be swapped for calibration or replacement in seconds without disturbing the field wiring, and flexible AC or DC power plus wall or DIN rail mounting make it easy to fit into an existing panel.
| Input | 4-20mA DC, 0-20mA DC, 0-1V DC, 0-10V DC, 0-5V DC, or 1-5V DC |
| Output 1 & Output 2 | Independently configurable: 4-20mA DC, 0-20mA DC, 0-5V DC, or 1-5V DC (each output set separately) |
| Isolation | 4-way isolation between input, Output 1, Output 2, and power |
| Power Supply | 100-240V AC (50/60Hz), 24V DC ±10%, or 100-240V DC |
| Accuracy | Better than ±0.1% of span (at 25°C±5°C) |
| Temperature Effect | Better than ±0.2% of span per 10°C change |
| Response Time | 85ms maximum (0-90%) |
| CMRR | Minimum 100dB |
| Dimensions (W x H x D) | 29mm x 86mm x 125mm |
| Weight | Main unit 120g; socket 80g |
| Mounting | Wall or DIN rail mounting, plug-in socket base |
| Terminals | M3.5 screw terminals |
| Operating Temperature | -5 to 55°C ambient |
| Operating Humidity | 5-90% RH, non-condensing |
Frequently Asked Questions
What is the MTT MS3704W used for?
It takes a single DC current or voltage input and re-transmits it as two independent, isolated outputs, so one field signal can feed two separate systems at once — for example a PLC and a chart recorder — each with its own signal type and range.
Can Output 1 and Output 2 be set to different signal types?
Yes — each output is configured separately, so you could have Output 1 as 4-20mA for a controller and Output 2 as 0-5V for a display, from the same input signal.
What’s the difference between the MS3704W and the MS3704SW?
The MS3704SW is a switch-selectable 1-5V/4-20mA isolator with two outputs of the same type. The MS3704W accepts a wider range of DC current or voltage inputs and lets each of its two outputs be configured independently to a different signal type and range.
What’s the difference between the MS3704W and the standard MS3704?
The standard MS3704 gives a single output. The MS3704W adds a second isolated output that can be configured independently of the first, so it can feed two downstream systems from one input.
How do I know which MS3704 model I need?
Send us your input signal type and range, whether you need one output or two, and whether those outputs need to be the same or different signal types — we’ll confirm the right MS3704 variant for your application.
Download MTT MS3704W Slim Plug-In High-Level Signal Conditioner information here
Spec Sheet: MTT MS3704W Spec Sheet
Manual: MTT MS3704W Manual
