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Press the HOLD button to freeze the reading on the display. HOLD will appear on the top part of the 6.
display. Press the HOLD button again to return to the display of real-time temperature readings.
Press the button 9 to activate/deactivate the backlight.7.
Press the on/off button to switch the device off. If no button is pressed for 20 minutes, the device 8.
will automatically power off.
The section “Adjusting settings” describes how to deactivate the auto-off function.
Special functions
MAX/MIN button
Press once:
Real-time reading appears on top•
The maximum reading (MAX) of the current measurement process appears •
underneath
Point in time, at which the maximum reading was measured, is displayed at •
lower edge of the display in minutes and seconds (min:sec) or in hours and
minutes (hour:min)
Press twice:
Real-time reading appears on top•
The minimum reading (MIN) of the current measurement process appears •
underneath
Point in time, at which the minimum reading was measured, is displayed at •
lower edge of the display in minutes and seconds (min:sec) or in hours and
minutes (hour:min)
Press three times:
Real-time reading appears on top•
The average reading (AVG) of the current measurement process appears •
underneath
The running total time of the current measurement process is displayed at •
lower edge of the display in minutes and seconds (min:sec) or in hours and
minutes (hour:min)
Press and hold the MAX/MIN button for approx. two seconds to return to normal display mode.
Adjusting settings
Press the SET button. SETUP will appear on the top left corner of the display. TYPE will appear on 1.
the bottom left corner.
Press the ENTER button to select the temperature sensor type.2.
UsingtheHOLDorMAX/MINbuttons,youcanswitchbetweentypesKandJ.Conrmyourselection3.
by pressing the ENTER button. The display will show SLP.
Press the ENTER button to activate/deactivate the auto-off function.4.
Using the HOLD or MAX/MIN buttons, you can switch between SLP ON (auto-off function on, clock 5.
symbol appears top-right in display) and SLP OFF (auto-off function off, clock symbol no longer
displayed).ConrmyourselectionbypressingtheENTERbutton.ThedisplaywillshowT1.
Press the ENTER button to compensate any deviation (OFFSET) in measurement accuracy of 6.
sensor T1.
Press the HOLD or MAX/MIN buttons to set any deviation adjustment (± 5 ºC; ± 9 ºF/K). The 7.
displayedreadingchangesaccordingly.ConrmyourselectionbypressingtheENTERbutton.
You can nd further details in the section “Determining deviation of a sensor’s measurement
accuracy”.
To return to the normal display mode, press the SET button.8.
If you only want to make a specic adjustment, press the SET button and select the required
point using the HOLD or MAX/MIN button. Then press the ENTER button and make the
adjustment.
Determining deviation of a sensor’s measurement accuracy
Turn the thermometer on and place the relevant sensor in an optional temperature calibrator or in 1.
any other reference location with a known and stable temperature.
Wait until the thermometer’s display has stabilised.2.
If there is a difference, you can manually compensate it (see section “Adjusting settings”).3.
MAINTENANCE AND CLEANING7.
No maintenance is necessary for the device apart for occasional cleaning and the changing of the battery.•
Clean the exterior of the device with a soft, dry cloth or brush only.•
Never use aggressive or chemical cleaning agents, since this might damage the surface of the •
housing or impair operation.
DISPOSAL8.
General
In order to preserve, protect and improve the quality of environment, protect human health
and utilise natural resources prudently and rationally, the user should return unserviceable
product to relevant facilities in accordance with statutory regulations.
The crossed-out wheeled bin indicates the product needs to be disposed separately and
not as municipal waste.
Batteries / rechargeable batteries
The user is legally obliged (battery regulation) to return used batteries and rechargeable
batteries. Disposing used batteries in the household waste is prohibited! Batteries/
rechargeable batteries containing hazardous substances are marked with the crossed-out
wheeled bin. The symbol indicates that the product is forbidden to be disposed via the
domestic refuse. The chemical symbols for the respective hazardous substances are Cd =
Cadmium, Hg = Mercury, Pb = Lead.
You can return used batteries/ rechargeable batteries free of charge to any collecting point of
your local authority, our stores or where batteries/ rechargeable batteries are sold.
Consequently you comply with your legal obligations and contribute to environmental protection!
TECHNICAL DATA9.
Operating voltage: 3 x 1.5 V/DC battery (type AAA)
Max. current consumption: approx. 7 mA
Measuring range:
-200 ºC to +1372 ºC / -328 ºF to +2501 ºF (K type)
-210 ºC to +1100 ºC / -346 ºF to +2012 ºF (J type)
Accuracy:
± 0.15 % rdg + 1 ºC / 1.8 ºF (> -100 ºC / -148 ºF)
± 0.5 % rdg + 2 ºC / 3.6 ºF (< -100 ºC / -148 ºF)
Temperature sensor measuring range
(included):
-20 ºC to +250 ºC / -4 ºF to +482 ºF
Resolution:
0.1 ºC/ºF/K (< 1000)
1ºC/ºF/K(≥1000)
Operating temperature: 0 ºC to +50 ºC / +32 ºF to +122 ºF
Operating humidity:
max. 80 % (< 31 ºC / 87 ºF)
linearlydecreasingto50%(≥40ºC/104ºF)
Storage temperature: -10 ºC to +50 ºC / +14 ºF to +122 ºF
Storage humidity: < 80 %
Dimensions (W x H x D): 62 x 28 x 162 mm
Weight: 183 g
OPERATING INSTRUCTIONS
Version 08/10
PL-120 T1 THERMOMETER
Item No. 12 34 01
INTENDED USE1.
This product is designed for temperature measurement and is especially suitable for use in laboratories
and industrial areas. Temperature measurement is done via a temperature sensor. Temperature can
be measured with temperature sensors of type K and J. Measurement readings can be frozen on
the screen. The product can display the minimum, maximum and average readings of a particular
measurement process. Temperature can be displayed in ºC (Celsius), ºF (Fahrenheit) or K (Kelvin). The
product features an auto-off and a backlight function. Power is supplied by three AAA batteries.
Measurements should not be carried out under unfavourable ambient conditions. Adverse conditions are:
Moisture or excessive humidity•
Dustandammablegases,vapoursorsolvents.•
Thunderstormsorsimilarconditionssuchasstrongelectrostaticelds,etc.•
This product fulls European and national requirements related to electromagnetic compatibility
(EMC). CE conformity has been veried and the relevant statements and documents have been
deposited at the manufacturer.
Unauthorised conversion and/or modication of the device are inadmissible because of safety and
approval reasons (CE). Any usage other than described above is not permitted and can damage the
productandlead to associated risks such asshort-circuit,re, electric shock, etc. Please readthe
operating instructions thoroughly and keep them for further reference.
CONTENT OF DELIVERY2.
Thermometer•
Temperature sensor (K-type)•
3 x AAA batteries•
Operating instructions•
SAFETY INSTRUCTIONS3.
We do not assume liability for resulting damages to property or personal injury if
the product has been abused in any way or damaged by improper use or failure to
observe these operating instructions. The warranty/ guarantee will then expire!
The icon with exclamation mark indicates important information in the operating
instructions. Carefully read the whole operating instructions before operating the
device, otherwise there is risk of danger.
Persons / Product
The product is not a toy and should be kept out of reach of children!•
When used in conjunction with other devices, observe the operating instructions and safety notices •
of connected devices.
Protect the product from extreme temperatures, direct sunlight, strong jolts, high humidity, moisture, •
ammablegases,vapoursandsolvents.
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. -
In schools, training facilities, hobby or self-service workshops, handling of electrical devices must be •
monitored by trained personnel.
When operating on commercial premises, the relevant accident prevention regulations of workers’ •
compensation boards for electrical equipment must be observed.
Makesuretherearenodeviceswithstrongelectricormagneticeldssuchastransformers,motors,•
cordlesstelephonesandradio-controlleddevicesinthevicinityoftheproductasthesecaninuence
the product.
Do not switch the product on immediately after it has been taken from a cold to a warm environment. •
The condensation that forms might destroy the product. Allow the product to reach room temperature
before switching it on.
Batteries
Correct polarity must be observed while inserting the batteries.•
Batteries 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 risk, •
that children or pets swallow it.
All the batteries should be replaced at the same time. Mixing old and new batteries in the device can •
lead to battery leakage and device damage.
Batteriesmustnotbedismantled,short-circuitedorthrownintore.Neverrechargenon-rechargeable•
batteries. There is a risk of explosion!
Miscellaneous
Repair works must only be carried out by a specialist/ specialist workshop.•
If you have queries about handling the device, that are not answered in this operating instruction, our •
technical support is available under the following address and telephone number: Voltcraft
®
, 92242
Hirschau, Lindenweg 15, Germany, phone 0180 / 586 582 7
OPERATING ELEMENTS4.
1
2
3
4 5 6
9
8
7
1. CFK button 6. Display
2. SET button 7. HOLD button
3. ENTER button 8. MAX/MIN button
4. On/off button 9. Backlight
5. T1 port
INSERTING / REPLACING BATTERIES5.
Unscrew the screw on the battery compartment cover using a Phillips screwdriver and take off the 1.
cover of the battery compartment.
Insert three AAA batteries, observing the correct polarity. Take note of the labelling on the inside of 2.
the battery compartment.
Close the battery compartment.3.
Replace the batteries when the battery icon appears on the display.
OPERATION6.
Do not measure the temperature of live parts or leads, as touching them might •
cause a potentially lethal electric shock. Also, the thermometer and sensor could
be damaged.
The sensor included with delivery can only be used for measurements in dry •
environments and on surfaces with a temperature of > -20 ºC and < +250 ºC. It
is not suitable for use in humid environments or to measure the temperature of
uids.
The accuracy of the gauge is only assured when the thermometer is operated at a •
temperature range of +18 ºC to +28 ºC (excluding the temperature sensor).
The thermometer (excluding the temperature sensor) must not be used outside •
the operating temperature range. Please note the specications on operating
temperature in the Technical Data section.
You can utilize the entire measurement range of the thermometer with optionally •
available temperature sensors.
Basic functions
Connect the temperature sensor to port T1 on the top of the device. Only one direction is possible. 1.
Please note the polarity labelling on the temperature sensors’ plug and on the side of the port.
You can also connect a temperature sensor of type J to the thermometer; these are optionally
available.
Press the on/off button to switch the device on.2.
Place the sensor at the locations which you want to measure.3.
The display will show the temperature reading. If no temperature sensor is connected, four horizontal 4.
bars will be displayed instead of a temperature reading.
Press the CFK button to switch between Celsius (C), Fahrenheit (F) and Kelvin (K).5.
These operating instructions are published by Voltcraft®,
Lindenweg 15, D-92242 Hirschau/ Germany, Phone +49 180 586 582 7.
Allrightsincludingtranslationreserved.Reproductionbyanymethod,e.g.photocopy,microlming,orthe
capture in electronic data processing systems require the prior written approval by the editor. Reprinting,
also in part, is prohibited.
Theoperatinginstructionsreectthecurrenttechnicalspecicationsattimeofprint.
Wereservetherighttochangethetechnicalorphysicalspecications.
© Copyright 2010 by Voltcraft®.
V3_0810_02-SB
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