In many safety-instrumented systems, critical variables like pressure, temperature, and flow are monitored via analog signals. The HIMA TM202-A00-B00-C00-D00-E00-G00 termination module provides the essential physical and electrical interface for these variables. It ensures that the 4-20mA current loop from a field transmitter is accurately delivered to the HIMax analog input modules for logic evaluation.
Accuracy is the primary metric for the TM202. The module is designed with high-grade components that minimize signal drift and resist temperature-induced fluctuations. The "A00-B00-C00" configuration refers to the standard, non-modified electrical profile, making it a versatile choice for a wide range of industrial sensors. It supports the transmission of HART data if paired with a HART-compatible HIMax I/O module.

The TM202 mounts onto the HIMax baseplate, allowing for a clean and efficient cabinet layout. The field wiring is terminated at the front of the module, while the connection to the system backplane is made at the rear. This separation of field and system wiring reduces the risk of accidental damage to the controller during field-side troubleshooting. The module’s design allows for quick visual inspection of all connection points.
Like all HIMax components, the TM202 supports advanced diagnostics. It can identify out-of-range signals, such as those caused by a transmitter failing low or high. This data is critical for the safety logic to determine if the process is in a safe state or if a sensor failure requires a fallback response. The robust shielding within the TM202 ensures that even in electrically noisy environments, the analog value remains stable.
The HIMA TM202 series is used in critical applications across the globe, from pharmaceutical batching to nuclear power plant cooling systems. Its adherence to IEC 61508 and other safety standards ensures that it provides the necessary performance for SIL 3 safety functions, protecting people, the environment, and capital assets.



