Features

Multi-channel monitoring
Provides six temperature monitoring channels, allowing simultaneous measurement of multiple temperature points for comprehensive thermal data acquisition.

Multiple input types
Supports two types of temperature inputs — Resistance Temperature Detector (RTD) and Thermocouple (TC) — to meet various sensor connection requirements.

Signal processing and alarm
Processes and conditions the input temperature signals, comparing them with user-programmable alarm setpoints. When the temperature exceeds the preset threshold, the system automatically issues an alarm signal.

Flexible configuration
Modules can be configured using the 3500 rack configuration software. Users can select RTD or TC measurement modes, or a combination of both, depending on application requirements.

Strong anti-interference capability
Available in two versions: RTD/TC non-isolated and TC isolated. The TC isolated version provides 250 VDC channel-to-channel isolation, effectively preventing external electrical interference.

Redundancy configuration support
When used in a Triple Modular Redundant (TMR) configuration, temperature monitors must be installed in adjacent groups of three. The system employs dual voting logic to ensure accurate operation and eliminate single-point failures.

Technical Specifications

Input impedance: Greater than 10 MΩ per lead input

RTD current source: 925 ± 15 μA per sensor at 25°C (single current source for 4-wire RTD, dual current sources for 3-wire RTD)

Temperature measurement range: Depends on the sensor type

Type E thermocouple: -100°C to +1000°C

Type J thermocouple: 0°C to +760°C

Type K thermocouple: 0°C to +1370°C