| LED | Color | Meaning | |-----|-------|---------| | PWR | Green solid | Power OK | | STAT | Green blink | Normal operation (1 Hz) | | ERR | Red blink | Sensor error or configuration fault | | COMM | Yellow flicker | Modbus/communication active |
A transmitter is only as good as its last calibration. For a new install, you must perform a . Xnx Universal Transmitter Quick Start Guide
| Register | Description | R/W | |----------|-------------|-----| | 40001 | Process value (float, two registers) | R | | 40003 | Live mA output value (float) | R | | 40005 | Device status (bitfield) | R | | 40101 | Modbus address (1–247) | R/W | | 40102 | Baud rate (0=9600,1=19200,2=38400) | R/W | | LED | Color | Meaning | |-----|-------|---------|
| Symptom | Likely Cause | Quick Fix | | :--- | :--- | :--- | | | No power or reverse polarity | Check Terminals 1 & 2 polarity; Measure voltage (needs >10V) | | Fault LED flashing / 2.5 mA output | Sensor not detected or failed | Re-seat sensor module; Check for bent pins | | Reading stuck at 999 or negative | Sensor short circuit or wet | Dry sensor overnight in warm area; Replace if persists | | Cannot enter menu (Lock icon) | User access locked | Enter Admin password ( 111 default) or contact supervisor | | Slow response to gas | Sintered disk clogged | Clean with compressed air; Do not use solvents | The XNX features a non-intrusive interface operated by
If your Xnx is not behaving, consult this table before calling tech support.
The XNX features a non-intrusive interface operated by waving a magnet over magnetic switches, allowing configuration without opening the enclosure. XNX® Universal Transmitter Quick Start Guide
Use mechanically protected cable with 0.5mm² (20AWG) to 2.5mm² (~13AWG) cross-sectional area.