MTT MS3704 Slim Plug-In High-Level Signal Conditioner

The MTT MS3704 is a slim plug-in high-level signal conditioner that accepts a wide range of standard DC current or voltage signals and delivers them as one or two galvanically isolated DC outputs. Because it handles a broad span of input types, from milliamp current loops to voltages of several hundred volts, it can standardize signals from many different field instruments into a common, isolated output that downstream equipment can read safely.

Like the rest of the plug-in transmitter range, the MS3704 clips into its own socket base so the unit can be swapped for calibration or replacement in seconds without disturbing the field wiring. Where a dual-output configuration is used, both outputs stay isolated from each other, the input, and the power supply, letting one signal drive a control loop and an independent monitoring or logging system at the same time. A fast-response option is available for applications where the standard response time is not quick enough, and flexible AC or DC power plus wall or DIN rail mounting make it easy to fit into an existing panel.

Input TypesDC current (100μA to 200mA) or DC voltage (200mV to 600V); common ranges include 4-20mA, 0-20mA, 0-10V, 4-10V, ±5V, ±10V
Input Resistance10Ω to 1MΩ depending on signal type
Allowable Input30V DC max. continuous (voltage inputs); 40mA DC max. continuous (current inputs)
Output0-20mA DC current or 10mV-20V DC voltage (single or isolated dual output)
Output Load (4-20mA)750Ω max single output; 550Ω/350Ω max for dual outputs
Isolation4-way isolation between input, Output 1, Output 2, power, and ground
Power Supply100-240V AC, 24V DC, or 100-240V DC (4.0VA max single, 5.0VA max dual at 100-240V AC)
AccuracyBetter than ±0.1% of span (at 25°C±5°C)
Response Time85ms maximum (0-90%); 10ms with /K fast-response option
Temperature EffectBetter than ±0.2% of span per 10°C change
CMRRMinimum 100dB
Insulation Resistance100MΩ minimum at 500V DC
Dielectric Strength2000V AC for one minute
Dimensions (W x H x D)29mm x 86mm x 125mm
WeightMain unit up to 120g; socket up to 80g
MountingWall or DIN rail mounting, plug-in socket base
TerminalsM3.5 screw terminals
Operating Temperature-5 to 55°C ambient
Operating Humidity5-90% RH, non-condensing

Download MTT MS3704 Slim Plug-In High-Level Signal Conditioner information here

Datasheet: MTT_SpecSheet_MS3704_Rev28_E

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