OPERATING INSTRUCTIONS
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Version 05/10
LCD Handheld Thermometer DT-300
Item-No. 10 08 27
Intended Use
The thermometer is intended for temperature measurements, using a high-grade steel penetration probe, in the range -50 to +300°C. The temperature is only measured at the probe’s tip.
The penetration probe can be used for liquids and solid substances.
In addition, the Min. and Max. values can be selected in the display. The temperature unit can
be switched between °Celsius to °Fahrenheit. Alarm levels can be set for Hi and Lo values. An
audible alarm will sound as soon as these values are reached.
The thermometer must not be left in running microwave ovens or hot ovens, since this will
deform the plastic and thus damage the unit.
The housing and the sensor are splash-proof and are thus suitable for use in humid environments. The device can be washed, in case of heavy soiling.
The thermometer is battery-operated and it requires two micro batteries (AAA). To improve
readability, the device can be placed on the folding stand. The sensor cable can be stored under
the folding stand, in order to save space.
Do not use in explosive areas or on persons or animals.
Any other use than described above is not permitted, it could cause damage to the product and
personal injury. No part of the product may be modified or rebuilt!
The safety instructions are to be observed without fail!
Safety Instructions
Please read all of the operating instructions before using the product for the
first time; they contain important information about the correct operation.
The warranty will be void in the event of damage caused by failure to observe
these safety instructions! We do not assume any liability for any consequential damage!
Nor do we assume any liability for material and personal damage caused by
improper use or non-compliance with the safety instructions! The warranty
will be void in such cases.
This device left the manufacture’s factory in a safe and perfect condition.
We kindly request the user to observe the safety instructions and warnings contained in these
operating instructions to preserve this condition and to ensure safe operation. Please pay attention to the following symbols:
A triangle containing an exclamation mark indicates important information in these
operating instructions which is to be observed without fail.
This product has been CE tested and complies with the required European
guidelines.
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The „hand“ symbol is used to indicate where specific hints and information on handling are given.
The unauthorized conversion and/or modification of the product is inadmissible for reasons of
safety and approval (CE).
Avoid strong mechanical stress, vibrations or blows.
Keep the unit out of the reach of children. It is not a toy. Keep it out of the reach of children!
Always insert the penetration probe into the device during work breaks or storage. Risk of injury!
Use heat-protection gloves when making measurements on hot objects. Do not touch the
sensor immediately after a measurement. Let the sensor cool down first, before you touch or
clean it.
Do not leave packaging materials unattended. They could become a dangerous playthings for
children.
On industrial sites, the accident prevention regulations of the association of the industrial workers’ society for electrical equipment and utilities must be followed.
Measurement instruments used at schools, training facilities, do-it-yourself and hobby workshops should not be handled unless supervised by trained, responsible personnel.
Do not leave flat batteries in the device. Even batteries protected against leakage can corrode
and thus release chemicals that could be detrimental to your health or destroy the device.
Remove the batteries, if the appliance is not to be used for long while, to prevent leaking.
Leaking or damaged batteries might cause acid burns if the come into contact with the skin.
Therefore, use suitable protective gloves.
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Do not leave batteries lying around carelessly. They might be swallowed by children or pets. If
swallowed, consult a doctor immediately.
Make sure that the batteries are not short-circuited. Do not throw batteries into a fire.
Batteries (non-rechargeable) must not be recharged. There is danger of explosion.
Description of the Parts
1 High-grade steel penetration probe
2 LCD display (LCD = Liquid Crystal Display)
3 On/Off switch
4 MIN/MAX display key
5 Record reading key
6 Key to set HI Alarm
7 Switching key °C/°F
8 Key to set LO Alarm
9 Battery compartment
10 Folding stand with cable compartment
Start-up
Inserting / Replacing Battery
When using for the first time, the batteries enclosed must be inserted. The battery needs replacing, when the battery change icon appears on the display or when the device cannot be
switched on.
Proceed as follows to replace the batteries:
Open the battery compartment (9) on the back of the device, using a coin
or a suitable screwdriver. Remove the cover from the device. Make sure
that the rubber seal does not become lost.
Now, place 2 new batteries in the battery compartment, paying attention
to the correct polarity. Observe the polarity labelling in the battery compartment.
Close the battery compartment carefully. Make sure that the rubberseal
is correctly inserted.
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Suitable batteries can be ordered with the Order No. 65 23 03.
Please order 2 x.
Switching the thermometer on and off
Press the „ON/OFF“ key (3) to turn the device on. The current temperature of the sensor is displayed. The sensing element is located in the first
5 cm section of the tip. Only place this section in the heat source.
The probe handle can be fastened sideways on to the thermometer. Push
the probe handle, from the top, into the holding strip. To remove, push the
handle upwards.
After a while, the thermometer switches off automatically to save battery
energy. You can switch the device off manually at any time. Press the
„ON/OFF“ key.
Selecting the measurement unit
Press the „°F/°C“ key (7), while the thermometer is turned on. Every time it is pressed, the
measurement unit is switched. The selected unit is shown on the display.
MIN-/MAX Measurement Display
The thermometer saves the minimum and maximum temperature automatically after each startup. This saved measured value can be displayed by using the „MIN/MAX“ key (4). Every time
you press this key, the display switches from the MIN. value to the MAX. value and so on. After
a few seconds, the device automatically switches back to the normal measurement display.
The MIN and MAX values are deleted, when the device is switched off.