MTT MS3706B Slim Plug-In Strain Gauge Transmitter
MTT-MS3700-Series-Dimension

MTT MS3706B Slim Plug-In Strain Gauge Transmitter

SKU: MS3706B Categories: , Tag:
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The MS3706B is a high-precision, slim plug-in strain gauge transmitter engineered to provide stable excitation voltage to strain-gauge type pressure sensors, load cells, and related bridge transducers[cite: 1419]. It accurately captures low-level millivolt signals and converts them into standard, linear process signals, offering versatile isolated single or dual output configurations for data acquisition and process control loops[cite: 1419, 1420]. Built for space-restricted industrial enclosures, the module features a ultra-slim 29mm wide profile optimized for wall or DIN rail mounting[cite: 1424, 1518]. The MS3706B is designed with a premium 4-way galvanic isolation barrier rated for a 2000V AC dielectric strength [cite: 1565, 1582], completely separating the input, power supply, and individual output channels to eliminate ground loops, suppress electrical noise, and maintain superior signal integrity in harsh factory automation environments[cite: 1565, 1580].

Key Product Features

  • Precision Bridge Excitation: Delivers stable, field-configured excitation outputs of 5V DC or 10V DC to power low-impedance strain gauge networks and industrial load cells[cite: 1419, 1422, 1474].
  • Flexible Multi-Range Inputs: Supports highly sensitive low-level DC inputs including 0-1mV, 0-2mV, ±1mV, and ±2mV, with customizable options for specialized sensor requirements[cite: 1422].
  • Robust 4-Way Galvanic Isolation: Complete structural isolation among input, output channels, and power paths prevents cross-talk and delivers a common-mode rejection ratio (CMRR) of 100dB minimum[cite: 1560, 1565].
  • Independent Signal Calibration: Outfitted with front-accessible zero and span trimmers providing an adjustment range of approx. ±5% of span for simplified field commissioning[cite: 1515, 1520].
  • Resilient Structural Build: Housed in a flame-retardant, UL 94V-0 rated ABS resin casing [cite: 1501] equipped with M3.5 drop-out prevention screws [cite: 1501] and a standard premium HumiSeal® polyurethane protective coating[cite: 1501].
Technical Specifications
● POWER SECTION
Power Requirements100 to 240V AC: 85 to 264V AC (50 to 60Hz) [cite: 1422, 1439]
24V DC: 24V DC ±10% [cite: 1422, 1441]
100 to 240V DC: 85 to 264V DC [cite: 1422, 1442]
Power SensitivityBetter than ±0.1% of span for each power supply range[cite: 1446].
Power Line Fuse160mA fuse is installed as standard[cite: 1448].
Power Consumption
Configuration100-240V AC24V DC100-240V DC
Single Output7.0VA max [cite: 1455]2.1W max [cite: 1456]7.2W max [cite: 1457]
Dual Output7.0VA max [cite: 1458]2.4W max [cite: 1459]8.4W max [cite: 1460]
● INPUT SECTION
Input Options (DC)Standard Range: 0 to 1mV (Code A) | 0 to 2mV (Code B) [cite: 1422]
Bipolar Range: ±1mV (Code AW) | ±2mV (Code BW) [cite: 1422]
Custom Range (Code 0): Available between -5mV and 5mV [cite: 1422, 1483]
(Min. span: 0.8mV, Max. span: 10mV, Bias: -100 to 100%)[cite: 1484, 1485].
*Note: For ranges including negative inputs, the input span scales from 1.6mV to 10mV[cite: 1487, 1488].
Excitation Voltage5V DC (Code E2): at 120Ω bridge resistance[cite: 1422, 1476].
10V DC (Code E3): at 350Ω bridge resistance[cite: 1422, 1477].
Custom Voltage (Code 0): Dynamic range from 3 to 10V DC[cite: 1422, 1486].
Input ResistanceWith Power: 1MΩ minimum[cite: 1463].
Without Power: 10kΩ minimum[cite: 1464].
Allowable Input Voltage30V DC maximum, continuous[cite: 1475].
● OUTPUT SECTION
Output Range OptionsAvailable individually for Output 1 and Output 2[cite: 1422, 1465]:
Current (DC): 4 to 20mA (Code A) | 0 to 20mA (Code D) | Custom current signal (Code Z)[cite: 1422].
Voltage (DC): 0-10mV, 0-100mV, 0-1V, 0-10V, 0-5V, 1-5V, ±1V, ±10V, ±5V, or Custom Voltage (Code 0)[cite: 1422].
*Note 1: When a voltage output is chosen for Output 1, current output cannot be selected for Output 2[cite: 1465, 1466].
*Note 2: For current output signals, precision is not guaranteed for outputs below 0.1mA[cite: 1536, 1537].
Extended Output Range limitsCurrent Signal Range: 0 to 20mA DC | Output Span: 4 to 20mA | Bias: 0 to 100%[cite: 1525, 1527, 1531, 1534].
Voltage Signal Range: -10 to 10V DC | Output Span: 10mV to 20V | Bias: -100 to 100%[cite: 1526, 1529, 1532, 1535].
Maximum Output LoadCurrent Output (Standard): Single 4-20mA output: 750Ω max[cite: 1508, 1509]. | Dual 4-20mA output: Output 1 is 550Ω max; Output 2 is 350Ω max[cite: 1466, 1510, 1512, 1514].
Current Output (Option /L): High-load dual configuration yields Output 1: 750Ω max / Output 2: 550Ω max[cite: 1469, 1470].
Voltage Output: 1V span and higher: 2mA max[cite: 1499, 1500]. | 10mV span: 10kΩ min[cite: 1503, 1504]. | 100mV span: 100kΩ min[cite: 1505, 1506].
Zero AdjustmentApprox. ±5% of span (Adjustable via front-accessible trimmer)[cite: 1515, 1516].
Span AdjustmentApprox. ±5% of span (Adjustable via front-accessible trimmer)[cite: 1520, 1521].
● PERFORMANCE
Accuracy RatingBetter than ±0.5% of span (at 25°C ±5°C)[cite: 1543, 1544].
Temperature EffectBetter than ±1.0% of span per 10°C change in ambient[cite: 1547, 1549].
Response Time85ms max. (0 to 90%) with a step input at 100%[cite: 1552, 1553].
CMRR100dB min. (500V AC, 50/60Hz) [cite: 1560].
Isolation4-way isolation between input, output [Output 1/Output 2], power, and ground[cite: 1565, 1568].
Insulation Resistance100MΩ min. (@500V DC) between input, output [Output 1/Output 2], power, and ground[cite: 1573, 1575].
Dielectric StrengthInput / Output [Output 1/Output 2] / [Power, Ground]: 2000V AC for 1 minute (Cutoff current: 0.5mA)[cite: 1581, 1582].
Power / Ground: 2000V AC for 1 minute (Cutoff current: 5mA)[cite: 1582].
Output 1 / Output 2: 500V AC for 1 minute (Cutoff current: 0.5mA)[cite: 1582].
Surge Withstand CapabilityTested as per ANSI/IEEE C37.90.1-1989[cite: 1583, 1584].
● PHYSICAL
InstallationWall/DIN rail mounting[cite: 1501].
Wiring ConnectionM3.5 screw terminal connection (with a power terminal block cover & drop-out prevention screws)[cite: 1501].
Screwing Torque0.8 to 1.0 [Nm] * Recommended[cite: 1501].
External DimensionsW29 × H86 × D125 mm (including the mounting screw and socket)[cite: 1501].
WeightMain unit: 120g max. | Socket: 80g max[cite: 1501].
● MATERIAL
HousingABS resin (UL94V-0)[cite: 1501].
Terminal BlockPBT resin (UL 94V-0)[cite: 1501].
Terminal Block CoverPC resin (UL 94V-2)[cite: 1501].
DIN Rail StopperPP resin (UL 94HB)[cite: 1501].
Screw TerminalNickel-plated steel[cite: 1501].
Contacts Material & FinishBrass with 0.2µm gold plating[cite: 1501].
Printed Circuit BoardGlass fabric epoxy resin (FR-4: UL 94V-0)[cite: 1501].
Anti-Humidity CoatingHumiSeal 1A27NS (Polyurethane)[cite: 1501].
● STANDARDS CONFORMITY
Operating EnvironmentAmbient Temperature: -5 to 55°C [cite: 1585]
Humidity: 5 to 90% RH (non-condensing) [cite: 1586, 1593]
Storage Temperature: -10 to 60°C [cite: 1591, 1592]
* HumiSeal® is a registered trademark of Chase Corporation[cite: 1540].

Download MTT MS3706B Slim Plug-In Strain Gauge Transmitter information here

Datasheet: MTT_SpecSheet_MS3706B_Rev20_E
Manual:

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