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Functions and Features
Daylight Harvest
Light will not switch on
when natural light is
sufficient, even there is
motion detected.
The light switches on
automatically with
presence when natural
light is insufficient.
The light turns on at full or dims to maintain the lux level. The light output
regulates accroding to the level of natural light available.
The light dims to stand-by
period after hold-time and
stays on selected minimum
dimming level.
The light switches off when
the ambient natural light is
sufficient.
The light switches off
completely after the
stand-by period.
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Selecting this mode will activate the following logic:
Manual on - The lights will not switch on until they have manually been switched on at the wall switch. The occupancy sensor is
inactive whilst the lights are off.
Auto off - When the lights are on, the sensor becomes active and monitors the space for activity. Once the area is vacated
(absence setection), the sensor will automatically switch off the lights if the last person out forgets to switch off the light
manually.
Note: The wall switch can be assigned to function or , but not both. The default function is manual override.
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Semi-auto Mode (Absence Detection)
Manual Override
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* Short Push (<1s): on/off function;
On
→
Off: the light turns off immediately and cannot be triggered ON by motion until the expiration of pre-set hold-time. After this
period, the sensor goes back to normal sensor mode.
Off
→
On: the light turns on and goes to sensor mode, no matter if ambient Lux level exceeds the daylight threshold or not.
* Long Push (>1s): adjust the target lux level by turning the light up or down. Both the adjustment on remote control and push switch
can overwrite each other. The last adjustment remains in memory.
Note: if end-user do not want this manual override function, just leave the “push” terminal unconnected to any wire.
With the help of push-switch, this sensor can be over-ridden by the end-user to manually switch on/off the light, or adjust the target lux
level by push-switch, which makes the product more user-friendly and offers more options to fit some extra-ordinary demands:
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Synchronisation Function
By connecting the “SYNC” terminals in parallel (see wiring diagram), no matter which sensor detects motion, all HIR27 in the group
will turn on the lights when surrounding natural light is below the daylight threshold. The detection area could be widely enlarged in
this way.
Subject to change without notice.
Edition: 30 Jun. 2021 Ver. A0 Page 7/9
