Name: MTT MS3702 Slim Plug-In RTD Temperature Transmitter
Brand: MTT Instruments
SKU: MS3702
Availability: InStock

The MTT MS3702 is a slim, plug-in RTD temperature transmitter that converts input signals from an RTD into commonly used DC signals and provides isolated single or dual output.

Specifications

● POWER SECTION

Power Requirements

100 to 240V AC: 85 to 264V AC (47 to 63Hz)
24V DC: 24V DC±10%
100 to 240V DC: 85 to 264V DC

Power Sensitivity

Better than ±0.1% of span for each power supply range.

Power Line Fuse

160mA fuse is installed (standard).

Power Consumption

Power	100-240V AC	24V DC	100-240V DC
Single Output	5.5VA max	1.6W max	6.0W max
Dual Output	7.0VA max	1.8W max	6.0W max

● INPUT SECTION

Excitation Current

Approx. 1mA with Pt for 0 to 100°C

Lead Wire Resistance

200Ω max. per wire

Ranges Available

<Standard specifications>
(Temp at 0% input = 0°C)

Pt 100Ω	Specify between 0-50°C and 0-500°C in steps of 50°C (e.g. Pt 100Ω, 0 to 150°C).
JPt 100Ω	Specify between 0-50°C and 0-500°C in steps of 50°C (e.g. JPt 100Ω, 0 to 250°C).
Pt 50Ω	0 to 100°C

<Quasi-standard specifications>

RTD	Temperature Range (°C)	Input Span	Input Bias
Pt 100Ω	-200 to +850	50°C min.	Up to 4x the input span.
JPt 100Ω	-200 to +500	50°C min.
Pt 50Ω	-200 to +600	100°C min.
Ni 508.4Ω	-50 to +250	30°C min.

Input Spec Ex.: For Pt 100Ω (150 to 200°C), the input span is 50°C and the bias 150°C (3x the span).
Note: Any specification out of the temperature range or bias requirement listed above is handled as a special order.

● OUTPUT SECTION

Maximum Output Load

Voltage Output (DC)	1V span and up	2mA max.
	10mV	10kΩ min.
	100mV	100kΩ min.
Current Output (DC)	4-20mA single output	750Ω max.
	4-20mA dual output	Output 1: 550Ω max.
	4-20mA dual output	Output 2: 350Ω max.

Zero Adjustment

Approx. ±5% of span. (Adjustable by the front-accessible trimmer.)

Span Adjustment

Approx. ±5% of span. (Adjustable by the front-accessible trimmer.)

Burnout Protection

Upscale (even if any of the three wires, A, B, and B’ is opened)

Ranges Available

	Current Signal	Voltage Signal
Output Range (DC)	0 to 20mA	-10 to 10V
Output Span (DC)	4 to 20mA	10mV to 20V
Output Bias	0 to 100%	-100 to 100%

* For current output signals, the accuracy of any current output smaller than 0.1mA is not guaranteed.
Output Spec Ex. 1: For 4 to 20mA output, the output span is 16mA and the bias +25%.
Output Spec Ex. 2: For -1 to 4V output, the output span is 5V and the bias -20%.

● PERFORMANCE

Accuracy Rating

Better than ±0.15% of span (at 25°C±5°C).

Temperature Effect

Better than ±0.2% of span per 10°C change in ambient.

Response Time

170ms max. (0 to 90%) with a step input at 100%.

CMRR

100dB min. (500V AC, 50/60Hz)

Isolation

4-way isolation between input, output [Output 1/Output 2], power, and ground.

Insulation Resistance

100MΩ min. (@ 500V DC) between input, output [Output 1/Output 2], power, and ground.

Dielectric Strength

Input / Output [Output 1/Output 2] / [Power, Ground]: 2000V AC for 1 minute (Cutoff current: 0.5mA)
Power / Ground: 2000V AC for 1 minute (Cutoff current: 5mA)
Output 1 / Output 2: 500V AC for 1 minute (Cutoff current: 0.5mA)

Surge Withstand Capability

Tested as per ANSI/IEEE C37.90.1-1989.

Operating Environment

Ambient temperature: -5 to 55°C
Humidity: 5 to 90% RH (non-condensing)

Storage Temperature

-10 to 60°C

● PHYSICAL

Installation

Wall/DIN rail mounting

Wiring

M3.5 screw terminal connection (with a power terminal block cover & drop-out prevention screws)

Screwing Torque

0.8 to 1.0 [Nm] * Recommended

External Dimensions

W29 × H86 × D125mm (including the mounting screw and socket)

Weight

Main unit: 120g max.
Socket: 80g max.

● MATERIALS

Housing

ABS resin (UL 94V-0)

Terminal Block

PBT resin (UL 94V-0)

Terminal Block Cover

PC resin (UL 94V-2)

DIN Rail Stopper

PP resin (UL 94HB)

Screw Terminal

Nickel-plated steel

Contacts Material and Finish

Brass with 0.2µm gold plating

Printed Circuit Board

Glass fabric epoxy resin (FR-4; UL 94V-0)

Anti-Humidity Coating

HumiSeal® 1A27NS (Polyurethane)

* HumiSeal® is a registered trademark of Chase Corporation.

● STANDARDS CONFORMITY

CE Directive Conformity

EMC Directive (2014/30/EU)
EN61326-1: 2013
Low Voltage Directive (2014/35/EU)
IEC61010-1/EN61010-1: 2010
Installation Category II
Pollution Degree 2
Maximum operating voltage 300V
Reinforced insulation between [input/output/GND] and power.

Download MTT MS3702 Slim Plug-In RTD Temperature Transmitter information here

Datasheet: MTT_SpecSheet_MS3702_Rev27_E
Manual: