Press the HOLD button to freeze the readings 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 SET button 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
T1/T2 button
Press once:
Reading of sensor T2 appears on top
•
Reading of sensor T1 appears underneath
•
Press twice:
Difference between both readings (T1-T2) appears on top
•
Reading of sensor T1 appears underneath
•
Press three times:
Difference between both readings (T1-T2) appears on top
•
Reading of sensor T2 appears underneath
•
Press four times:
Normal display (T1 top, T2 underneath)
•
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)
When in MIN/MAX mode, you can switch between T1, T2 and T1-T2 by pressing the
•
T1/T2 button.
Press and hold the MAX/MIN button for approx. two seconds to return to normal display mode.
•
Adjusting settings
Press and hold the SET button for approx. two seconds. SETUP will appear on the top left corner of
1.
the display. TYPE will appear on the bottom left corner.
Press the ENTER button to select the temperature sensor type.
2.
Using the HOLD or MAX/MIN buttons, you can switch between types K and J. Confirm your
3.
selection 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). Confirm your selection by pressing the ENTER button. The display will show T1.
Press the ENTER button to compensate any deviation in measurement accuracy of sensor T1.
6.
Press the HOLD or MAX/MIN buttons to set any deviation adjustment (± 5 ºC; ± 9 ºF/K). The
7.
displayed reading changes accordingly. Confirm your selection by pressing the ENTER button. The
display will show T2.
Proceed as described above to compensate a deviation in measurement accuracy of sensor T2.
8.
You can find further details in the section “Determining deviation of a sensor’s measurement
accuracy”.
To return to the normal display mode, press and hold the SET button for approx. two seconds.
9.
If you only want to make a specific adjustment, press and hold 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.
After you have manually compensated a deviation, the top display will then show the OFFSET
indicator in normal display mode. The previously input deviation value is being added to or
subtracted from the reading.
MAINTENANCE ANd CLEANING
7.
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.
dISPOSAL
8.
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 dATA
9.
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 % + 10 ºC / 1.8 ºF (> -100 ºC / -148 ºF)
± 0.5 % + 20 ºC / 3.6 ºF (< -100 ºC / -148 ºF)
± 0.5 % + 10 ºC / 1.8 ºF (T1-T2)
Temperature sensor measuring range
(included):
-20 ºC to +250 ºC / -4 ºF to +482 ºF
Resolution:
0.1 ºC/ºF/K (< 1000)
1 ºC/ºF/K (≥ 1000)
Operating temperature:
0 ºC to +50 ºC / +32 ºF to +122 ºF
Operating humidity:
max. 80 % (< 31 ºC / 87 ºF)
linearly decreasing to 50 % (≥ 40 ºC / 104 ºF)
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:
184 g
OPErATING INSTruCTIONS
Version 06/10
PL-120 T2 THErMOMETEr
Item No. 12 34 02
INTENdEd uSE
1.
This product is designed for temperature measurement and is especially suitable for use in laboratories
and industrial areas. Temperature measurement is done via two temperature sensors. 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 can calculate the difference between two temperature readings and display the result. 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
•
Dust and flammable gases, vapours or solvents.
•
Thunderstorms or similar conditions such as strong electrostatic fields, etc.
•
This product fulfils European and national requirements related to electromagnetic compatibility
(EMC). CE conformity has been verified and the relevant statements and documents have been
deposited at the manufacturer.
Unauthorised conversion and/or modification 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
product and lead to associated risks such as short-circuit, fire, electric shock, etc. Please read the
operating instructions thoroughly and keep them for further reference.
CONTENT Of dELIVEry
2.
Thermometer
•
2 x Temperature sensors (K-type)
•
3 x AAA batteries
•
Operating instructions
•
SAfETy INSTruCTIONS
3.
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,
•
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.
-
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.
Make sure there are no devices with strong electric or magnetic fields such as transformers, motors,
•
cordless telephones and radio-controlled devices in the vicinity of the product as these can influence
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.
Batteries must not be dismantled, short-circuited or thrown into fire. Never recharge non-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 ELEMENTS
4.
1
2
3
4
5
6
7
10
9
8
1. CFK button
6. T2 port
2. T1/T2
button
7.
Display
3. ENTER button 8. HOLD button
4. On/off button
9. MAX/MIN button
5. T1 port
10. SET button
INSErTING / rEPLACING BATTErIES
5.
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.
OPErATION
6.
do not measure the temperature of live parts or leads, as touching them might
•
cause a potentially lethal electric shock. Also, the thermometer and sensors
could be damaged.
The sensors included with delivery can only be used for measurements in dry
•
environments and on surfaces with a temperature of > -20 ºC and < +250 ºC. They
are not suitable for use in humid environments or to measure the temperature
of fluids.
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 sensors).
The thermometer (excluding the temperature sensors) must not be used outside
•
the operating temperature range. Please note the specifications 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 sensors to ports T1 and T2 on the top of the device. You may also connect
1.
just one temperature sensor. Only one direction is possible. Please note the polarity labelling on the
temperature sensors’ plugs and on the side of the ports.
You can also connect temperature sensors of type J to the thermometer; these are optionally
available.
Press the on/off button to switch the device on.
2.
Place the sensors at the locations which you want to measure.
3.
The display will show the temperature readings (T1 top, T2 underneath). If no temperature sensor is
4.
connected, four horizontal 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.
All rights including translation reserved. Reproduction by any method, e.g. photocopy, microfilming, or the
capture in electronic data processing systems require the prior written approval by the editor. Reprinting,
also in part, is prohibited.
The operating instructions reflect the current technical specifications at time of print.
We reserve the right to change the technical or physical specifications.
© Copyright 2010 by Voltcraft®.
*02_06/10_01-SB
