Why Choose the IMO SMT-4PT iSmart PT100 Temperature Input Module?
The IMO SMT-4PT is a compact four-channel PT100 temperature input expansion module designed for the IMO iSmart programmable relay platform. It allows a compatible iSmart controller to monitor up to four PT100 resistance temperature detectors, providing accurate temperature measurement for industrial machinery, process control, HVAC and building automation applications.
As part of the IMO iSmart expansion module range, the SMT-4PT operates from a 24 V DC supply and provides four 12-bit PT100 temperature input channels. The module measures temperatures across a wide -100 to +600 °C range, allowing a single compact controller to monitor several temperature points within a machine or process.
With a temperature resolution of 0.1 °C and specified accuracy of ±1%, the SMT-4PT provides practical temperature monitoring for automation applications. Each input is assigned to a dedicated temperature register within the iSmart controller, while individual channel error indication assists with identifying wiring faults, disconnected sensors and out-of-range conditions.
Key Advantages
- Adds four PT100 temperature inputs to compatible IMO iSmart controllers.
- Wide -100 to +600 °C temperature measurement range.
- 0.1 °C temperature resolution for detailed process monitoring.
- 12-bit temperature input architecture for industrial measurement applications.
- Individual channel error indication helps identify sensor and wiring problems.
- 24 V DC supply compatible with standard industrial control systems.
- Compact expansion format simplifies installation within control panels.
- Suitable for machinery, HVAC, process control and temperature monitoring systems.
Key Features
- IMO iSmart PT100 temperature input expansion module.
- Four PT100 input channels.
- 12-bit temperature inputs.
- -100 to +600 °C measurement range.
- 0.1 °C resolution.
- ±1% specified accuracy.
- 24 V DC operating supply.
- 55 mA current consumption.
- 1.32 W power consumption.
- Dedicated AT01 to AT04 temperature registers.
- Individual error indication for all four temperature channels.
- Compatible with IMO iSmart programmable relay expansion systems.
Reliable PT100 Temperature Monitoring for iSmart Automation
PT100 resistance temperature detectors are widely used in industrial automation because their resistance changes predictably with temperature. The IMO SMT-4PT converts signals from up to four PT100 sensors into temperature values that can be processed directly by the connected iSmart controller, allowing temperature conditions to form part of the machine or process control logic.
The SMT-4PT also provides diagnostic support for each temperature channel. If an input is out of range because of incorrect wiring or a missing sensor, the corresponding channel is not updated and its dedicated error coil is activated. This functionality helps engineers incorporate sensor fault detection into automated control and alarm sequences.
Typical Applications
- Industrial temperature monitoring and control.
- Heating and cooling equipment.
- HVAC and building automation systems.
- Process temperature monitoring.
- Machine building and OEM equipment.
- Production and manufacturing machinery.
- Tank and vessel temperature monitoring.
- IMO iSmart automation system expansion.
