The ATJ-EN is a direct replacement for the ACB-E and is compatible with the same mounting bases. It is a multi-heat sensor fully compatible with Hochiki’s ESP Analogue Addressable Protocol. The ATJ-EN features both a fixed temperature heat element and a rate-of-rise heat element, which are configurable via the control panel. Either element, or both simultaneously, can be used to determine a fire condition.
The sensor’s polling LEDs can also be controlled from the control panel, operating in either pulsing or non-pulsing mode.
Key Features
- User-selectable operating modes
- Incorporates fixed temperature and rate-of-rise heat elements
- Twin LEDs providing 360° visibility (green during polling, red in alarm)
- Panel-controlled pulsing or non-pulsing LEDs
- Electronically addressed
- LPCB and VdS approved to Classes A1, B, and C
- SIL Level 2 approved variants available
- Available in white
Improvements
- New outer cover design with clear sensor-type markings
- Software enhancements
- Increased noise immunity
- Fully backwards compatible