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TFA_No. 31.1136_Anleit_Sprach
RAY - Infrared Thermometer
4. Use
• Press the black measuring button on the inside of the handle to turn on the device.
• All segments will be displayed for a short moment.
• The backlight is automatically activated (default). The symbol
• Press the
button to turn off or turn on the backlight. The
symbol disappears or appears on the display.
• The laser is automatically activated (default). The symbol
• Press the
button to deactivate or activate the laser. The symbol disappears or appears on
the display.
• Press and hold the measuring button, on the display appear "SCAN" and the measured tempe-
rature.
• With the laser the measuring point can be focused exactly.
• Release the measuring button.
• On the display appears HOLD.
• The latest measured temperature stays for a few seconds on the display.
• When the device is not used, it will automatically switch off after a few seconds.
• Press the °C/°F button to change the temperature display from °C (default) to °F.
5. Distance, Spot Size, and Field of View
• As the distance (D) from the object increases, the spot size (S) of the area measured by the
unit becomes larger a ratio D:S = 12:1 (e.g. 120 cm distance = 10 cm spot size). To get the
most accurate temperature reading, aim at the target as near as possible.
• Should the distance be too great, there is a risk that the temperature has also been taken out-
side the aimed target.
Please take note of the following:
• Not recommended for use in measuring shiny or polished metal surfaces (stainless steel,
aluminium, etc.).
• The unit cannot measure through transparent surfaces such as glass or plastic. It will meas-
ure the surface temperature of the glass instead.
6. Care, maintenance, battery replacement
• The sensor lens is the most delicate part of the thermometer. Please protect the sensor part
from dirt.
• Clean your instrument with a soft damp cloth. Do not use solvents or scouring agents.
• Remove the batteries if you do not use the product for a long period of time.
• Change the batteries, when the battery symbol appears on the display.
• Confirm the device is power off before changing the batteries.
7. Troubleshooting
Problems
Solutions
➜ Switch on the device – press the measuring button
No display
➜ Ensure that the batteries polarity is correct
➜ Change the batteries
➜ Measured temperature is outside measuring range
Display HI/LO
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appears on the display.
appears on the display.
RAY - Infrared Thermometer
8. Waste disposal
Never dispose of empty batteries and rechargeable batteries in household
waste. As a consumer, you are legally required to take them to your retail store
or to an appropriate collection site depending on national or local regulations in
order to protect the environment.
The symbols for the heavy metals contained are:
Cd = cadmium, Hg = mercury, Pb=lead
This instrument is labelled in accordance with the EU Waste Electrical and Elec-
tronic Equipment Directive (WEEE).
Please do not dispose of this instrument in household waste. The user is obli-
gated to take end-of-life devices to a designated collection point for the dispos-
al of electrical and electronic equipment, in order to ensure environmentally-
compatible disposal.
9. Specifications
Temperature range
-50 °C .... +500°C (- 58°F...+932°F)
Accuracy
0°C...+500°C (+32°F...+932°F) ±1,5°C (±2,7°F) or ±1,5 %
-50°C...0°C (-58°F...+32°F) ±3°C (±5°F) whichever is
greater
Storing temperature
-20°C...+60°C (-4°F...+140°F)
Working temperature
0°C ... +40°C (32°F...104°F)
Emissivity
0,95 fest
Resolution
0,1°C / 0,1°F
Response time
<1 second
Distance to spot size
12 : 1
Repeatability
1 % of the measuring or 1°C
Spectral response
8-14 um
Power consumption:
Batteries 2 x 1,5 V AAA (not included)
Automatic off-function
approx. 8 seconds
Dimensions
39 x 76 x 145 mm
Weight
108 g (instrument only)
TFA Dostmann GmbH & Co. KG, Zum Ottersberg 12, D-97877 Wertheim.
No part of this manual may be reproduced without written consent of TFA Dostmann. The tech-
nical data are correct at the time of going to print and may change without prior notice.
The latest technical data and information about your product can be found by entering your
product number on our homepage.
www.tfa-dostmann.de
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