Sealey VS900.V3 User manual

INFRARED LASER DIGITAL
THERMOMETER (12:1)
MODEL NO: VS900.V3
Thank you for purchasing a Sealey product. Manufactured to a high standard, this product will, if used according to these
instructions, and properly maintained, give you years of trouble free performance.
IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS & CAUTIONS. USE
THE PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE AND/OR
PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. KEEP THESE INSTRUCTIONS SAFE FOR FUTURE USE.
1. SAFETY
1.1. General Safety
WARNING! Ensure that Health & Safety, local authority and general workshop practice regulations
are adhered to when using this equipment.
WARNING! DO NOT aim the laser beams at your or another person’s or animal’s eye and beware
of reflections from mirrors or other shiny surfaces.
9Familiarise yourself with the applications, limitations, and potential hazards of the thermometer.
9Keep the thermometer clean and in good condition.
9Protect the thermometer from the following:
Electro-magnetic fields from engine components, arc welders and induction heaters closer than
125mm.
Static electricity.
Thermal shock caused by large and/or rapid ambient temperature change.
High temperatures.
8DO NOT get the thermometer wet or use in damp or wet locations or areas where there is condensation.
8DO NOT take readings through transparent materials such as glass or clear plastic. The surface
temperature of these materials will be measured.
8DO NOT use the thermometer in areas where there is steam, dust or smoke. These conditions will
result in erroneous readings.
8DO NOT use the thermometer for any purpose other than that for which it is designed.
8DO NOT allow untrained persons (particularly children) to operate the thermometer.
8DO NOT operate the thermometer when you are tired or under the influence of alcohol, drugs or
intoxicating medication.
1.2. Laser Safety
The VS900.V3 utilises a Class II laser that emits low levels of visible radiation (i.e. wavelengths between 400 and 700 nanometres)
which are safe for the skin but not inherently safe for the eyes. The Class II emission limit is set at the maximum level for which eye
 protectionisnormallya󰀨ordedbynaturalaversionresponsestobrightlight.Accidentaleyeexposureisthereforenormallysafe, 
 althoughthenaturalaversionresponsecanbeoverriddenbydeliberatelystaringintothebeam,andcanalsobeinuencedbythe
use of alcohol or drugs.
WARNING! DO NOT look or stare into the laser beam as permanent eye damage could result. Be aware that reflections of the laser
beam from mirrors or other shiny surfaces can be as hazardous as direct eye exposure.
2. INTRODUCTION
High resolution laser thermometer that detects energy emission in the infrared spectrum and converts reading into a display of temperature.
Features laser pointer, data hold function and auto power off. Temperature is displayed on a large 23mm LCD panel with back-lit display for use
in low light areas. Temperature can be shown in either °C or °F. The Digital Thermometer is powered by a 9V cell (supplied).
3. SPECIFICATION
Model No:.......................................................................................VS900.V3
Focal Ratio:..............................................................................................12:1
Temperature Range:......................................{-50 to +380°C (-58 to +716°F)}
Accuracy (0°C to +380°C ):.............+/-1.5°C or +/-1.5% whichever is greater
Accuracy (-50°C to -0°C):.....................................................................+/-3°C
Resolution:..................................................................................1°C or 0.1°F
Repeatability:............................................................................1% of reading
Response time:.......................................................500mSec, 95% response
Spectralresponse:.............................................................................8-14μm
Emissivity:....................................................................................0.95 Preset
Operating Temperature: ..........................................0 to +40°C (32 to 104°F)
Operating Humidity:............10 to 95%RH non-condensing up to 30°C (86°F)
Storage Temperature:..........................................-20 to +60°C (-4 to +140°F)
Power:...........................................................................9V battery (supplied)
Typical battery life:....................Non laser mode: 22 hrs; Laser mode: 12 hrs
Weight: ...............................................................................................147.5g
Dimensions: ..........................................................153mm x 101mm x 43mm
VS900.V3 Issue 3 (HF) 11/04/18
Original Language Version
© Jack Sealey Limited
Refer to
instructions
Warning laser
beam

4. SET UP
4.1.  Installing/ChangingBattery(g.1)
4.1.1. On either side of the trigger, where the handle moulding meets the main body there are two very
shallow recesses. Place thumb and finger into these recesses and pull the front section of the handle
forward and down to reveal the battery compartment.
4.1.2. Attachthebatteryconnectortothebatteryterminalsandplacethebatteryintothebatterycompartment   
making sure that the connection leads will not foul the cover when it is closed.
4.1.3. When the ‘battery low’ indicator appears on the display replace the battery immediately,
(See Environmental Protection)
5. OPERATION AND APPLICATION
5.1.  Depressthetrigger(1)ing3toswitchontheunit,the‘SCAN’iconwillilluminate.
5.2.  Decidewhatunitsarerequiredbypressingthe‘°C/°F’button(3)ing3.Thebuttonwilltoggle 
 betweenthespeciedunits.
5.3. Pay attention to the distance from the thermometer to the target as the
 targetsurfacesizeincreaseswithdistance.Aratioof12:1exists,seeg2.      
Make sure the target is larger than the unit’s spot size. The smaller the
target, the closer the distance “D”. When accuracy is critical ensure the
target is at least twice the spot size.
5.4. The unit is equipped with a laser for the purpose of aiming only. With the
 laserbutton(2)ing3inthe‘on’or‘o󰀨’mode,aimatthetargetsurface      
and depress the trigger. The temperature of the target surface will be
displayed on the LCD display screen. When the trigger is released the
reading will be held for 7 seconds approximately; the ‘HOLD’ icon will
be illuminated in this period; and then the thermometer will automatically
shut down unless the trigger is depressed again.
5.5. To locate a hot spot on a large surface, aim the thermometer as in 4.4, then scan across the area with a controlled uniform “zig-zag”
sweep until youlocatethespot,asillustrateding4.
6. NOTES ON EMISSIVITY
6.1. Emissivity is a term used for the ability of a surface to radiate energy. This unit has been pre-set with an emissivity of 0.95, which
makes it suitable for 90% of typical applications.
6.2. Inaccurateresultswilloccurwhentargetingshinyorpolishedsurfaces.Asatip,applyanonreectivetapetotheareatobe 
tested allowing time for the surface temperature of the tape to reach that of the substrate.
7. CLEANING
7.1. The sensor lens is delicate and should be kept clean at all times. Use a cotton bud and medical alcohol, allowing lens to dry. The
casing can be cleaned with a moist cloth and mild soap but never submerged.
2) Laser
on/o󰀨
3) Units
°C/°F
4) Back light
on/o󰀨
1)Trigger
fig.3
Trigger
Depressed
fig.4
fig.1
fig.2
VS900.V3 Issue 3 (HF) 11/04/18
Original Language Version
© Jack Sealey Limited
ABCD
E
G
F
LCD Display-:
A:Dataholdicon
B: Scanning icon
C: Laser "ON" icon
D: Backlight "ON" icon
E: Battery status icon
F: Temperature units (°C or °F)
G: Temperature reading

Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR
01284 757500 01284 703534 [e-mail] www.sealey.co.uk
ENVIRONMENT PROTECTION
Recycleunwantedmaterialsinsteadofdisposingofthemaswaste.Alltools,accessoriesandpackagingshouldbesorted,takento
a recycling centre and disposed of in a manner which is compatible with the environment. When the product becomes completely
unserviceable and requires disposal, drain any fluids (if applicable) into approved containers and dispose of the product and fluids
according to local regulations.
WEEE REGULATIONS
Dispose of this product at the end of its working life in compliance with the EU Directive on Waste Electrical and Electronic Equipment
(WEEE). When the product is no longer required, it must be disposed of in an environmentally protective way. Contact your local solid
waste authority for recycling information.
BATTERY REMOVAL. SEE SECTION 4.
UndertheWasteBatteriesandAccumulatorsRegulations2009,JackSealeyLtdarerequiredtoinformpotentialpurchasersofproducts
containing batteries (as defined within these regulations), that they are registered with Valpak’s registered compliance scheme. Jack
Sealey Ltd Batteries Producer Registration Number (BPRN) is BPRN00705.
Note: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior
notice.
Important: No Liability is accepted for incorrect use of this product.
Warranty: Guarantee is 12 months from purchase date, proof of which is required for any claim.
VS900.V3 Issue 3 (HF) 11/04/18
Original Language Version
© Jack Sealey Limited