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OPERATING INSTRUCTIONS
IR-500-1S INFRARED THERMOMETER
ITEM NO.: 1389714
INTENDED USE
The infrared thermometer enables you to take contactless temperature measurements from -33 °C to
+500 °C. The thermometer also features a clock. The product is not designed for industrial or clinical use.
The product is powered via a CR2032 battery.
It is intended for indoor use only. Do not use it outdoors. Contact with moisture, e.g. in bathrooms, must be
avoided under all circumstances.
For safety and approval purposes (CE), you must not rebuild and/or modify this product. If you use
the product for purposes other than those described above, the product may be damaged. In addition,
improper use can cause hazards such as short circuiting, fire, electric shock etc. Read the instructions
carefully and keep them. Make this product available to third parties only together with its operating
instructions.
This product complies with the statutory national and European requirements. All company names and
product names are trademarks of their respective owners. All rights reserved.
DELIVERY CONTENT
• Infrared thermometer
• Wristband
• CR2032 battery
• Operating instructions
Up-to-date Operating Instructions:
1. Open www.conrad.com/downloads in a browser or scan the
displayed QR code.
2. Select document type and language and enter the item number
into the search field. After submitting the query you can download
displayed records.
SAFETY INSTRUCTIONS
Read the operating instructions carefully and especially observe the safety information.
If you do not follow the safety instructions and information on proper handling in this
manual, we assume no liability for any resulting personal injury or damage to property.
Such cases will invalidate the warranty/guarantee.
a) Persons / Product
• The device is not a toy. Keep it out of the reach of children and pets.
• Do not leave packaging material lying around carelessly. This may become dangerous
playing material for children.
• Protect the product from extreme temperatures, direct sunlight, strong jolts, high humidity,
moisture, flammable gases, vapours and solvents.
• Do not place the product under any mechanical stress.
• If it is no longer possible to operate the product safely, take it out of operation and protect it
from any accidental use. Safe operation can no longer be guaranteed if the product:
- is visibly damaged,
- is no longer working properly,
- has been stored for extended periods in poor ambient conditions or
- has been subjected to any serious transport-related stresses.
• Please handle the product carefully. Jolts, impacts or a fall even from a low height can
damage the product.
• Do not expose the device to high temperatures for prolonged periods.
• Avoid using the device near welding machines, induction heaters and other objects with
electromagnetic fields.
• When measuring reflecting objects, the temperature measured will be lower than the actual
temperature. These objects are a potential fire hazard.
• The thermometer is not designed to carry out measurements for taking vital or
security- related decisions.
b) Batteries
• Correct polarity must be observed while inserting the battery.
• The battery should be removed from the device if it is not used for a long period of time to
avoid damage through leaking. Leaking or damaged batteries might cause acid burns when in
contact with skin, therefore use suitable protective gloves to handle corrupted batteries.
• Batteries must be kept out of reach of children. Do not leave the battery lying around, as there
is a risk that children or pets may swallow it.
• Batteries must not be dismantled, short-circuited or thrown into fire. Never recharge non-
rechargeable batteries. There is a risk of explosion.
c) Miscellaneous
• Consult an expert when in doubt about operation, safety or connection of the device.
• Maintenance, modifications and repairs are to be performed exclusively by an expert or at a
qualified shop.
VERSION 01/16
If you are not sure about the correct connection or use, or if questions arise which are not covered by
these operating instructions, please do not hesitate to contact our technical support or another qualified
specialist.
OPERATING ELEMENTS
OPERATION
a) Inserting/changing the battery
Insert the battery before using the product for the first time. Replace the battery when the battery indicator
shows a low battery level.
Low battery: The battery must be changed. Measurements can still be made.
C
Empty battery: Measurements cannot be made.
C
Do not use the product for approximately 15 seconds before changing the battery so that it switches
to time mode. Remove the battery when the product displays the time.
b) Setting the time
1. The product turns on automatically after you insert the battery.
2. Press the MEAS. button (3) once and then press the MODE button (1) four times in quick succession.
The time on the display (4) starts to flash.
3. Press and hold the MODE button a fifth time until the hour value starts to flash.
4. Press the MEAS. button to change the hour value. Hold the button down to scroll through the hour
values quickly. Press and hold the MODE button to confirm the hour value. The minute value flashes.
5. Press the MEAS. button to change the minute value. Confirm your selection by pressing the MODE
button.
6. The infrared thermometer will switch back to the time display if no button is pressed for approximately
15 seconds.
c) Measuring the temperature
The temperature measured with the infrared sensor is the surface temperature of the
measured object. Interior temperatures cannot be measured.
Measure the temperature with the object in direct view and away from obstructions.
The device cannot measure through transparent surfaces (e.g. glass). Instead, the
thermometer measures the surface temperature of the transparent object.
Keep the lens of the infrared sensor clean and free from damage.
The infrared sensor is set to an emissivity of 0.95. This is suitable for measuring most thick everyday
objects. The measurement may be inaccurate when measuring the temperature of objects with a
significantly different emissivity. As a rule of thumb, the more reflective a material is for visible light, the
lower its emissivity. For example, polished copper has an emissivity of 0.04, whereas oxidised copper
(grey/green) has an emissivity of 0.87.
The emissivity of an object indicates how much infrared radiation it emits compared with an ideal
radiant heater (a black body).
Ensure that the measured object is bigger than the measuring spot. The temperature displayed on the
thermometer is the average temperature of the measured surface. The distance to the object and the size
of the measuring spot are in a 1:1 ratio. Before measuring the surface temperature of metal surfaces, apply
a piece of adhesive tape that is at least as big as the measuring spot to the measured object. Leave the
adhesive tape for a few minutes and allow it to come to the temperature of the measured object before
measuring.
1 MODE button
5
2 Battery compartment
3 MEAS. button
4
4 Display (temperature/time)
5 Infra-red sensor
3
2
1
1. Remove the battery compartment cover on the back of the product by
turning it anticlockwise. Do not use any sharp objects, as these may
damage the cover.
2. Insert a CR2032 battery with correct polarity in the battery
compartment (2) (observe plus/+ and minus/-). The positive
terminal (+) should point upwards. Ensure that the battery is inserted
under the angled metal contact.
3. Replace the battery compartment cover in the correct orientation.
Close the battery compartment cover by turning it clockwise.
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