MTT MS3763 Slim Plug-In RTD Differential Temperature Transmitter

The MTT MS3763 Slim Plug-In RTD Differential Temperature Transmitter measures the temperature difference between two Pt100 or JPt100 RTD sensors and converts that differential directly into an isolated, standard DC current or voltage output. This makes it a practical solution for monitoring temperature-rise applications such as heat exchanger inlet/outlet differences, cooling tower approach temperature, or bearing temperature deviation, where the difference between two points matters more than either absolute reading on its own.

Built-in burnout protection drives the output upscale if an RTD lead fails, giving operators an unmistakable signal that something needs attention rather than a misleadingly stable reading. Front-accessible trimmers allow zero and span to be adjusted on site, and dual isolated outputs let the differential reading be sent to two separate destinations from a single module. An optional fast-response configuration and an enhanced load-capability option are also available, letting the MS3763 be tailored to processes where response speed or driving a heavier output load matters most.

Temperature Range0 to 50°C (fixed)
Differential Range0 to 20°C (fixed)
RTD TypesPt 100Ω or JPt 100Ω (2-wire, JIS standard)
Excitation CurrentApprox. 2mA
Lead Wire Resistance50Ω max per wire
Output TypesSingle or dual isolated outputs; current 0-20mA or 4-20mA; voltage 0-10mV through ±10V DC
Output Load750Ω max (single 4-20mA); 550Ω/350Ω (dual)
AdjustmentApprox. ±5% of span, zero and span, via front trimmers
AccuracyBetter than ±0.2% of span (15-35°C ambient); ±0.2% of span per 10°C temperature effect
Response Time200ms max (0-90%); optional fast response 10ms max with /K option
CMRR100dB min. (500V AC, 50/60Hz)
Isolation4-way isolation between input, output, power, and ground; 100MΩ min. insulation resistance @500V DC; 2000V AC dielectric strength (input/output), 500V AC (output-to-output)
Power Supply100-240V AC, 24V DC, or 100-240V DC; 5.5-6.5VA (AC) / 1.5-1.8W (DC)
DimensionsW29 x H86 x D125mm
Weight120g (main unit) / 80g (socket) max
TerminalsM3.5 screw terminals with drop-out prevention, 0.8-1.0 Nm torque
MountingWall or DIN rail mount
Operating Conditions-5 to 55°C, 5-90% RH non-condensing
Storage Temperature-10 to 60°C
Additional FeaturesBurnout protection (upscale on wire failure); optional enhanced load capability (/L: 750Ω/550Ω outputs)

Download MTT MS3763 Slim Plug-In RTD Differential Temperature Transmitter information here

Datasheet: MTT_SpecSheet_MS3763_Rev24_E

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