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5.
OpERATION
5.1.
INSTALLING/cHANGING BATTERy fig.1
WARNING Point away from eyes when inserting batteries.
‰
5.1.1.
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.
5.1.2.
Insert 2 x AAA batteries, observe polarity.
5.2.
DISTANcE TO SpOT SIZE, fig.1
5.2.1.
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 fig 2.
5.2.2.
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.
5.3.
EMISSIVITy SEE cHART BELOW AND 5.5.4.4.
most organic materials and painted or oxidized surfaces have an emissivity of 0.95 (preset in the unit). Inaccurate readings will result from
measuring shiny or polished metal surfaces. To compensate for this, use C/F button to go up and laser backlight button to go down the
units emissivity reading or cover the surface to be measured with masking tape or flat black paint. measure the tape or painted surface
when the tape or painted reach the same temperature as the material underneath.
Material
Emissivity
Aluminium
0.30
Asbestos
0.95
Asphalt
0.95
Basalt
0.70
Brass
0.50
Brick
0.90
Carbon
0.85
Ceramic
0.95
Concrete
0.95
Copper
0.95
dirt
0.94
5.3.1.
Frozen food
0.90
5.3.2.
Hot food
0.93
5.3.3.
Glass (plate)
0.85
5.3.4.
Ice
0.98
5.3.5.
5.3.6.
5.4.
LOcATING A HOT SpOT fig.2
5.4.1.
To find a hot spot, aim away from the object then scan across with an up and down motion, until the hot spot is located.
5.5.
READING TEMPERATURE fig.3
5.5.1.
Pull trigger to display temperature value with SCAn mode.
5.5.2.
Release trigger and scroll to Hold mode to save the data automatically.
The unit will turn off if there is no further operation.
5.5.3.
°c & °F Button
Switch between Celsius and Fahrenheit, as well as emissivity (see 5.5.4.4.
and Self Calibration, see 5.5.4.5).
5.5.4.
Mode Button
Switch between modes mAX - mIn - AT - emS - CAl - meAS-URInG
InTeRFACe
5.5.4.1.
mAX: measures max temperature
5.5.4.2.
mIn: measures minimum temperature
Note: during measurement keep the mode button pressed down to
switch between mAX or mIn view.
5.5.4.3.
AT: Current environmental temperature.
5.5.4.4.
emS: emissivity can be set between 0.10 and 1.00. Use the °C/°F key to increase
the value. Use the laser/backlight button to decrease the value.
5.5.4.5.
CAl: Calibration Mode. the unit can be adjusted between -5.0°C and +5°C.
Use the °C/°F key to increase the value. Use the laser/backlight button to
decrease the value.
5.6.
Laser/Backlight On/Off Button
5.6.4.1.
Press the trigger and the backlight switch and the back light will turn off.
5.6.4.2.
laser operates in all modes except emS and CAl, (as button is used to decrease these values).
6.
MAINTENANcE
6.1.
LENS cLEANING
6.1.1.
Blow off loose particles using clean compressed air, wear safety goggles. Gently brush remaining debris away with a water moistened
cotton swab.
6.1.2.
Clean the case with a damp cloth and mild soap.
© Jack Sealey limited
Material
Emissivity
Iron
0.70
lead
0.50
limestone
0.98
oil
0.94
Paint
0.93
Paper
0.95
Plastic
0.95
Rubber
0.95
Sand
0.90
Skin
0.98
Snow
0.90
Steel
0.80
Textiles
0.94
Water
0.93
Wood
0.94
Original Language Version
Trigger
depressed
fig.2
fig.3
fig.1
VS900.V4 Issue 1 21/08/19
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