This document describes the features and characteristics of Honeywell/Commercial Switch&Sensor's GTN series gear sensors, including the use of magnetic bias Hall effect IC to measure the movement of ferrous metals, integrated signal diagnostic function, compact design, and robust structure.
The GTN series Hall‑effect gear sensors use a magnet‑biased Hall IC to detect the movement of ferrous‑like metal. When the target passes the sensor, the magnetic field of a permanent magnet changes, producing an open‑collector switch pulse whose frequency is proportional to gear speed. Integrated diagnostics monitor the output to detect supply open‑circuit or short‑circuit conditions.
The manual covers sensor installation (flush mounting, selectable probe lengths, sealed AMP connectors), technical specifications such as supply voltage, output type, measurement frequency range, IP rating and temperature limits, as well as ordering information for the various GTN part numbers. This manual is written in Chinese.
| Output signal type | Open‑collector (collector open) |
|---|---|
| Protection rating | IP67, IP68, IP69K |
| Operating temperature | -40 °C to +125 °C |
| Pull‑up resistor (high/low) | 18 kΩ / 1 kΩ (12 V version) |
| Maximum supply current | 20 mA (max 40 mA) |
It provides an open‑collector (collector‑open) switch output.
Integrated signal diagnostics monitor the output amplitude and can detect if the sensor’s supply is open‑circuit or short‑circuit.