2
Helvar 313 Low-Profile Microwave Detector: Installation Guide
60 mm
50 mm
76 mm
Ø
5
65 mm
Ø
76
Connection and Fixing
Mounting hole
Surface Back Box SBB-A, SBB-AB
1.
2.
3.
4.
Attach
the cable
clamp.
If required,
connect
the external
power cable.
Ø
68 mm
WARNING
Take special care
when bending springs
to install the unit.
Note: Order the SBB-A or SBB-AB surface mount boxes separately.
•
Position the sensor so that the occupants of the room are normally inside the detection zone.
•
Do not install the sensor within 1 m of any lighting, forced air heating, or ventilation equipment.
•
Do not fix the sensor to an unstable or vibrating surface.
•
Install the unit as far away as possible from the surface of metal objects.
•
The detection pattern illustrated (see ‘Detection Pattern’ on page 1) is based on a mounting height of 2.8 m.
A lower mounting height will decrease the overall size of the detection zone.
Installation Notes
Installation
All dimensions in millimetres.
1. Install the unit: see ‘Connection and Fixing’ on page 2.
2a. Connect the DALI terminal blocks to the sockets located at the rear of the sensor.
2b. If required, connect the optional power supply. See ‘External Power Supply (Optional)’ on page 3.
3. Power the unit up.
4. After the lighting load switches on, by default it will switch off after 20 minutes of no movement detected.