Eaton MTL831C Simulated multiplex transmitter

Specific Parameters

Brand Eaton

Product Series Eaton MTL830 Series Intrinsically Safe Transmitter

Product Type Intrinsically Safe Analog Multiplexer Transmitter

Model MTL831C

Intrinsically Safe Rating Suitable for Zone 0, Zone 1 Hazardous Areas

Input Type Up to 16 thermocouples/millivolt sources (max ±60mV), or 15 2/3/4-wire RTDs (PT100/PT1000 compatible)

Signal Transmission Single-pair data highway transmission, supporting dual redundant links, compatible with highway power supply

Transmission Distance Up to 2km in hazardous areas, up to 3km in safe areas (compatible with low-capacitance and low-resistance cables)

Power Supply Powered by data highway, no independent on-site power supply required

Supply Voltage 12-36VDC wide voltage adaptation

Power Dissipation Maximum 180mW at 12V/20mA signal, peak power consumption 220mW

Output Signal Digital signal, compatible with MTL838C receiver proprietary protocol

Fuse Specification 63mA, 5×20mm glass fuse, DIN 41571 standard, semi-time-lag (M)

Ripple Coefficient Input and output circuit ripple ≤0.8mA peak-to-peak

Installation Method Compatible with ENC8/ENC83 series enclosures, supporting multi-unit stack installation

Physical Weight 1050g

Warranty Period 12 Months

Origin United States

Supporting Equipment Compatible with MTL838C receiver, MTL3053 isolator, MTL4220 earth fault detector

Product Performance

Intrinsically safe design covers Zone 0/1 hazardous areas without additional explosion-proof measures. Combined with wide voltage adaptation capability, it can operate stably in high-risk scenarios and voltage fluctuation environments, ensuring personnel and equipment safety.

Supports mixed access of thermocouple, millivolt source and RTD signals, newly compatible with PT1000 RTD. A single device can be expanded to 32-channel input (two units sharing a link), adapting to signal collection needs in complex scenarios.

Integrated design of signal transmission and power supply simplifies on-site wiring. The transmission distance of 2km in hazardous areas and 3km in safe areas, combined with low ripple coefficient, improves signal transmission accuracy by 15% compared with the previous generation.

Dual redundant link configuration automatically switches to the standby link when a single link fails. Combined with earth fault linkage protection, the fault response time is ≤10ms, ensuring uninterrupted signal transmission.

Compatible with ENC8/ENC83 series enclosures with IP67 protection level, supporting multi-unit stack installation, occupying small space and adapting to different scale control cabinet layouts.

Integrated 63mA fuse and overload protection circuit can resist on-site circuit short circuit and overload risks, extend equipment service life and reduce operation and maintenance costs.

Compatible with Eaton MTL series receivers and isolators, seamlessly connecting to existing MTL systems, and can directly replace MTL831B without system reconstruction, facilitating the upgrade of old projects.