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 incorporates both a fixed temperature heat element and a rate-of-rise heat element, which are controlled via the control panel. This allows either element, or both simultaneously, to be active when determining a fire condition.
Sensor polling LEDs can also be configured from the control panel to operate in either pulsing or non-pulsing mode.
Key Features
- User-selectable operating modes
- Incorporates fixed temperature and rate-of-rise heat sensing elements
- Twin LEDs providing 360° visibility (green during polling, red during alarm)
- Panel-controlled pulsing or non-pulsing LED operation
- 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 identification markings
- Software enhancements
- Increased noise immunity
- Fully backwards compatible