Description
HIMA Z7116
Technical Specifications: Channel count: 8 analog input channels Input signal range: 4-20mA Transmitter power supply: 24VDC loop power available per channel Resolution: 16 bit Isolation: Galvanic isolation between field side and system side SIL rating: SIL3 Bus interface: HIMax internal safety bus
Functional Features: Detect signal under range and over range. Detect loop break fault and short circuit fault. Support HART signal pass through. Hot swap module replacement. Front panel LED for channel status and fault indication. Built-in signal filtering.
Application Scenarios: Safety related flow, pressure, level, temperature measurement in chemical plant, oil & gas, power plant safety instrumented system.
Performance Parameters: Measurement accuracy ±0.1% full scale. Signal update rate 100Hz.
Material Composition: FR4 industrial circuit board. Precision reference resistors. Isolation transformers and optocouplers. Flame retardant plastic front cover. Gold plated backplane connector.
Structural Features: HIMax rack pluggable module form. Front terminal block for field transmitter wiring. LED indicators on front panel. Backplane connector for safety bus and power supply. EMI shielding structure.
Working Principle: 4-20mA current signal from field transmitter enters module input channel. Precision sampling circuit converts current signal into voltage signal. ADC chip converts analog voltage into digital value. Onboard microprocessor performs range check and fault diagnosis. Digital measurement data and fault flags are transmitted to safety controller through internal safety bus.
Installation Requirements: Install in HIMax safety rack slot. Field cable use twisted shielded pair. Shield ground at single end only. Keep analog cables away from AC power cables. Operating ambient temperature 0℃ to 60℃.
Usage Notes: Do not apply high voltage to analog input terminals. Set signal range matching field transmitter. Calibrate channel according to operation manual when required. Use only original HIMA replacement modules.
