The bench test - Moving the goalposts | Archive Titles

Factspanel
Equipment:	Guardall V12
Product group:	PIR
Application:	Domestic & commercial
Manufacturer:	Guardall Ltd
Address:	Lochend Industrial Estate, Newbridge, Edinburgh EH28 8PL
Telephone:	0131 333 2900
Fax:	0131 333 4919
Available from:	Gardiner Security, CSD, A & A, Alarm Supplies, Greenhills, Enterprise, Verifier
Trade price (ex VAT):	£14.50
CE Mark awarded:	Yes
Lens type:	Volumetric fresnel
Interchangeable lenses:	Yes
Range on centre axis:	15m
No of detection zones:	216 detection points
Coverage adjustment:	+3deg-to-11 vertically, 5deg horizontally when corner mounted
Sensor:	Dual Hex (2 x 6 elements)
Temperature compensation:	Yes, profiled
Alarm period:	Approx 3 seconds
Pulse count:	2 detections within 25 seconds if enabled
Other signal processing options:	Gain selection switch, difference signal processing in ASIC
Walk test facility:	Yes
Housing material:	ABS plastic
Self-test functions:	Periodic electrical self test and low voltage detection
Power supply voltage:	9 to 16v DC
Max current consumption:	15mA
IP rating:	IP4x
Size in mm	98 x 67 x 46
Warranty:	5 years

Productassessment
Design and design features	*****
Circuitry and components	*****
Ease of installationand wiring	********
Range and variety of functions	********
Accompanying	*****
Technical advice and backup	*****
Value for money	*****
Key: Outstanding *** Very good Above average * Average ** Below average *

Stabilityassessment
Tolerance to cold air turbulence	*****
Tolerance to hot air turbulence	*****
Tolerance to quartz halogen lamp	*****
Tolerance to fluorescent tube	*****
Toleranceto test insect	*****
Key: Detector operated correctly throughout test *** Detector false alarmed after: 80% of test 50% of test * 20% of test ** Detector false alarmed before 20% of test *