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This module is a 6-channel isolated RTD temperature input module designed for high-accuracy temperature measurement in harsh and hazardous environments. It supports Pt100 (100 Ω) RTD sensors, integrates cold junction compensation, and communicates via Modbus RTU, with compatibility for LinkNet distributed I/O networks. The module is well suited for turbine and rotating equipment temperature monitoring.

Key Technical Specifications

RTD Input

Input channels: 6 independent channels

Sensor type: 100 Ω RTD (Pt100)

Channel isolation: Full isolation between channels

Temperature measurement: High-stability RTD signal acquisition

Measurement Performance

Accuracy: ±0.1% of full scale

Resolution: 12-bit

Signal processing: Built-in filtering and linear scaling

Communication

Protocol: Modbus RTU

Network compatibility: LinkNet distributed I/O network

Power Supply

Operating voltage: 18–32 VDC

Power consumption: ≤ 3.5 W

Auxiliary power: Integrated 24 VDC circuit power supply

Physical Characteristics

Dimensions (approx.): 140 × 110 × 40 mm

Weight (approx.): 900 g

Environmental & Compliance

Operating temperature range: −40 ℃ to +85 ℃

Hazardous area certification: Class I, Division 2 explosion-proof

Designed for industrial and field-mounted installations

Core Functions

High-precision Pt100 temperature signal acquisition

Channel-to-channel electrical isolation for enhanced reliability

Cold end (cold junction) compensation for accurate temperature measurement

Signal filtering and scaling to improve measurement stability

Suitable for hazardous area applications

Compatible with GE LM series gas turbine monitoring systems