Instruction Manual

Page 16 of 19 ESP FIREbeam – Installation Manual
 2011 Hochiki Europe (UK) Ltd
2-3-0-1340/ISS2/DEC11
Phase - When using multiple beams that face each other the beam output signals
could phase together and can cause unreliable readings, by setting each beam to
phase differently alleviates this problem. Use the
right and left keys to give
each beam a different phase pattern (length between output beam sample times)
you can choose between 0 (default setting) and 6. Press
enter to return to
‘Mode Change’ or
down to go to ‘Hysteresis’.
Hysteresis - Changing the hysteresis will change the delay in returning from a
fire state back to a normal state. For example, the beam is factory set at 15% so if
the beam falls into fire at 65% (35% threshold) it has to recover 15% to 80%
before it returns to normal. This action prevents small fluctuations in returned
signal causing the beam to fall in and out of a fire state. This can be adjusted
between 1% and 40% by using the
right and left keys. Press enter to
return to ‘Mode Change’ or
down to go to ‘Comp Fire – Fault’.
Press
enter to return to ‘Mode Change’.