Time Guard MLB3000 Installation & Operating Instructions Manual page 10

PROBLEM
o Unit activates during
the daytime
o PIR coverage is
poor/sporadic
o Detection range varies
from day to day
5 YEAR
GUARANTEE
In the unlikely event of this product becoming faulty
due to defective material or manufacture, within 5 years
of the date of purchase, please return it to your supplier
in the first year with proof of purchase and it will be
replaced free of charge. For years 2 to 5 or any difficulty
in the first year telephone our helpline on 020 8450 0515.
Note: A proof of purchase is required in all cases. For all eligible replacements
(where agreed by Timeguard) the customer is responsible for all shipping/
postage charges outside the UK. All shipping costs are to be paid in advance
before a replacement is sent.
SOLUTION
The level of ambient light in the area may be too dark
for the current DUSK setting. During daylight, adjust the
DUSK control slightly anti-clockwise. When the lamp load
extinguishes, enter the detection area. If the PIR still
activates, the setting is still too high. Repeat the above
procedure until the PIR does not activate when you
enter the detection area. Refer to previous section
for more details.
Unit may be poorly located. See previous section –
'Selecting The Location' and re-locate the unit.
PIR sensors are influenced by climatic conditions.
The colder the ambient temperature, the more effective
the sensor will be. You may need to make seasonal
adjustments to the sensor head position to ensure
trouble-free operation all year round.