Horstmann Radio Telemeter Series 2a User Manual -

Keep this manual with the equipment at all times. Before disposing of the unit, remove the battery and recycle responsibly.

| LED State | Meaning | |-----------|---------| | | Powered on, no active transmission, idle mode | | Flashing Green (1Hz) | Normal operation – sampling inputs, no alarm | | Flashing Amber | Transmitting data packet – radio burst active | | Flashing Red (fast) | Low battery or input over-range alarm | | Solid Red | Critical fault (internal memory corruption or radio PLL unlock) | 2.2 I/O Terminal Block (Internal) Remove the four corner screws to access the terminal block. Do not open in a wet or explosive environment. horstmann radio telemeter series 2a user manual

2A-UM-EN-2024-09 Last updated: September 2024 Supersedes all previous editions. Keep this manual with the equipment at all times