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Specification Parameters
Power Supply Parameters: Usually adopts DC power supply, possibly 24V DC. Some data show that the working power supply is 85 - 265VAC, 50Hz, 10W.
Working Environment: The operating temperature is generally -10℃ - 50℃, and the humidity is less than 95% RH (no condensation).
Sensor - Related: The sensor power supply may be 5V/100mA, the sensor operating temperature is ≤300℃, and the operating pressure is ≤3Mpa.
Accuracy and Resolution: The instrument accuracy class may be Class 3, the resolution can reach 0.01mm, and the maximum linear error is 0.05mm.
Sampling and Output: The sampling rate is more than 200 times per second, the analog output is 12 - bit, and the 4 - 20mA current signal is provided.
Display Parameters: It may adopt a 6 - digit LED nixie tube (double row) for display, and the maximum display division number is 100000 divisions.
Protection Level: The protection level is IP55, and the explosion - proof level is Exia IICT4.
Overall Dimensions: The overall dimensions are 45 (H) * 95 (W) * 163 (D) mm, and the opening dimensions are 41 (H) * 90 (W) mm.
Application Areas:
- PLC & DCS Integration: Can be integrated with PLC (Programmable Logic Controller) and DCS (Distributed Control System) for real-time data monitoring and adjustment.
- Real-Time Monitoring: Converts sensor signals into actionable data for system performance optimization.
- Hazardous Area Monitoring: Monitors critical parameters (e.g., gas leaks, temperature, pressure) in high-risk environments and transmits alarms via 4-20mA signals to control systems.
Circuit Composition (Speculative):
- Power Supply: Typically uses a 24V DC power source with resistors for circuit division (e.g., power supply resistor and current output resistor).
- Sensor Unit: The core component that detects physical changes and converts them into electrical signals, possibly using resistive strain gauges or similar principles with compensation circuits.
- Amplifier Circuit: Boosts weak sensor signals to the 4-20mA standard range, composed of operational amplifiers and adjustable resistors to calibrate the output current.
- Overload Protection: Prevents damage from voltage spikes or pressure surges using components like current-stabilizing diodes and fuses.
- Output Circuit: Converts the amplified current signal into a voltage via resistors and supplies operational voltage to external measurement or control devices.
Working Principle:
The sensor converts physical parameters into electrical signals, which undergo conditioning (amplification, filtering, linearization) before being converted into a standardized 4-20mA current signal. This signal is then transmitted to control systems or display units via the output circuit.
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