Xuzhou Haihe KD-I Gate Opening Indicator

1. Fully digital calibration: All parameter settings are completed via four keys on the panel. All set or calibrated parameters feature power-off memory function; parameter setting includes password protection.

2. The opening sensor requires no mechanical zero adjustment and allows software zero adjustment at any point.

3. Utilizes Modbus RTU communication protocol with configurable baud rates of 2400, 4800, and 9600. It can be directly integrated into communication networks of PLCs and host computer configuration software that support the Modbus-RTU protocol.

4. Miniaturized design, gate opening measurement, clear and intuitive Chinese LCD display, facilitating convenient human-machine interaction.

III. Technical Parameters

1. Measurement item: 1 channel of opening, 80 meters (MAX)

2. Resolution: 1cm

3. Measurement accuracy: ±2cm

4. Display method: 4*8 Chinese character library LCD display.

5. Connection method between sensor and display: 485 signal - 4-core RVVP cable; SSI signal - 4-core RVVP cable; Gray code signal - 15-core RVVP cable

6. Wired distance between sensor and display: SSI signal ≤200M; Gray code or 485 ≤1KM

7. Remote transmission method for output data: 4-20mA current output, corresponding range configurable; 485 signal

8. Alarm and control functions

1) Alarm control signal: Relay contact. Contact capacity: 3A 24VDC, 3A 250VAC.

2) Upper limit: When the opening is greater than or equal to the upper limit value, the upper limit relay contact closes;

3) Lower limit: When the opening is less than or equal to the lower limit value, the lower limit relay contact closes;

4) Water filling: When the opening value is within the range of the water filling position and water filling reset, the relay closes.

9. The microcontroller in the display is equipped with a Watchdog to prevent operational disorders.

10. Operating conditions:     

Ambient temperature: -25℃ ~ +60℃

Relative humidity: ≤95% (RH 40℃)

Power supply voltage: AC220 V ±10% ~ 50Hz

Power consumption: ≤20W

11. Display unit dimensions: 160 (W) × 80 (H) × 105 (D) mm

Panel cutout dimensions: 152 (W) × 76 (H) mm