Horstmann Radio Telemeter Series 2a User Manual May 2026

2A-UM-EN-2024-09 Last updated: September 2024 Supersedes all previous editions.

Introduction to the Series 2A The Horstmann Radio Telemeter Series 2A represents a significant leap in remote environmental monitoring and industrial telemetry. Designed for robustness and long-range communication, the Series 2A is not merely a data logger; it is a complete wireless data acquisition system. It transmits critical parameters—temperature, pressure, voltage, flow rates, and contact closures—from remote or hazardous locations back to a central receiver or SCADA (Supervisory Control and Data Acquisition) system. 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 | |-----------|---------| |

| 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. no active transmission