HIMA H6200A transmitter circuit

Product manual:

Function Description of HIMA H6200A Transmitter Circuit
HIMA H6200A is an analog input module used in industrial automation safety systems,
The transmitter circuit is mainly used to receive analog signals from field instruments (such as transmitters),
Typical is a 4-20 mA current signal. This circuit has the following key functions:

1. Power supply function of transmitter
H6200A provides internally isolated DC power supply to power external 2-wire transmitters.
The voltage is usually 24V, and the current is controlled to ensure power supply stability and safety.

2. Analog signal acquisition
For subsequent A/D conversion processing. H6200A will linearize the input signal and convert it into a data format recognizable by the control system.

3. Electrical isolation
Effectively prevent interference such as ground potential difference and overvoltage from entering the control system.

4. Fault monitoring
Equipped with the following fault detection functions:

Signal open circuit detection (such as transmitter disconnection)

Signal short circuit protection

Abnormal input voltage/current alarm

5. System integration capability
H6200A can be used as part of the HIMatrix or HIMax system,
Complete signal diagnosis, logical operations, and data upload through the security processor in the system backend.
Capable of redundant design to meet the application requirements of SIL3 level.

Brief composition of circuit modules (speculative technical structure)
Circuit section description
The power regulation module stably outputs 24V voltage, with overcurrent and reverse connection protection
The current sampling circuit uses precision sampling resistors to convert 4-20 mA into voltage
Isolation circuits use optocouplers or isolation amplifiers to achieve input/output isolation
Protection and filtering circuits perform surge suppression and electromagnetic interference filtering on input signals
Implement fault detection and alarm logic to trigger alarms for input disconnection, short circuit, abnormal range, and other situations

Product details picture:

H6200A

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