The HZW series gate position meter (gate opening sensor) is specifically designed for gate measurement characteristics, utilizing photoelectric or contact encoders, and is manufactured with precision variable-speed mechanisms internally. It offers multiple output signal options for users to choose from, including parallel Gray code, serial RS485, 4-20mA standard analog signals, and SSI synchronous serial signals. This sensor is easy to install, highly adaptable, stable, and reliable, integrating detection and A/D conversion into one unit, with a power-off memory tracking function. It is suitable for measuring the lifting height of various gates (such as flat gates, radial gates, miter gates, gantry cranes, bridge cranes, etc.). Its functionality, features, and reliability are highly trusted and praised by water conservancy and hydropower engineering technicians.

I. Main Technical Specifications:

The technical specifications of this sensor mainly depend on the encoder used. Optional encoders include: HGD65535 photoelectric encoder, HJZ8192 contact encoder, or various imported encoders.

1. HGD65535 Photoelectric Encoder (Patent No.: ZL 2010 2 0521497.9)

Encoding Characteristics: Encoding, 1024 sets of codes per cycle, continuous 64 cycles (i.e., 1024*64)

Operating Voltage: DC12-24V

Dimensions: Main body diameter 60, length 64

Operating Environment Temperature: -20℃ to +75℃ (non-condensing)
Storage Environment Temperature: -25℃ to +80℃

Power Consumption: ≤70mA (varies with output signal and supply voltage)

Protection Level: IP64

Output Signals: A-4-20mA; B-Parallel Gray Code; M-RS485; S-Serial SSI Signal

2. HJZ8192 Contact Encoder

Encoding Characteristics: 128 sets of codes per cycle, continuous 64 cycles (i.e., 128*64)

Operating Voltage: Not exceeding DC30V

Dimensions: See the figure below

Operating Environment Temperature: -30℃ to +85℃ (non-condensing)
Relative Humidity: <90% (40℃)

Power Consumption: ≤40mA (determined by the decoding circuit)

Protection Level: IP64

Output Signals: A-4-20mA; B-Parallel Gray Code; M-RS485; S-Serial SSI Signal

3. JX8192 Mechanical Encoder

Encoding Characteristics: 32 sets of codes per cycle, continuous 256 cycles (i.e., 32*256)

Operating Voltage: DC12V

Dimensions: See the figure below

Operating Environment Temperature: -20℃ to +75℃ (non-condensing)
Storage Environment Temperature: -25℃ to +80℃

Power Consumption: ≤40mA

Protection Level: IP64

Output Signals: A-4-20mA; B-Parallel Gray Code; M-RS485; S-Serial SSI Signal

4. 12*12 Magnetoelectric Encoder

Encoding Characteristics: Encoding, 4096*4096

Operating Voltage: DC12-24V

Dimensions: See the figure below

Operating Environment Temperature: -20℃ to +75℃ (non-condensing)
Storage Environment Temperature: -25℃ to +80℃

Power Consumption: 29mA at 12V power supply; 16mA at 24V power supply. This parameter may vary with output interface and supply voltage.

Protection Level: IP65

Output Signals: A-4-20mA; M-RS485; S-Serial SSI Signal

Gate Position Meter Installation*Usage and Precautions:

1. This sensor is a high-precision instrument. Do not strike, drop, or collide with it during installation.

2. Connections between the sensor and external components should avoid rigid connections. Instead, use couplings, connecting gears, or synchronous belts for transmission.

3. During installation, ensure that the allowable axial load is not exceeded. Do not exceed the limit load.

4. Do not exceed the encoder's maximum rotational speed. Exceeding this limit may result in loss of electrical signals.

5. Ensure correct wiring. Incorrect wiring may damage the internal circuit of the sensor.

6. Do not bundle the sensor's output wires with power lines or transmit them through the same conduit. Avoid using near distribution panels to prevent interference.