Operation - VOLTCRAFT 10 09 12 Bedienungsanleitung

Replace the battery if the empty battery symbol (17) is shown in the display.
1. Fold open the battery compartment lid (9) opening the battery compartment (7).
2. Remove the worn battery from the battery clip and connect a new battery of the same type
with the correct polarity to the battery clip. The battery clip is constructed to only have the
battery connected with the correct polarity. Do not use force when plugging in!
3. Close the battery compartment (7) by closing the battery compartment lid (9).

Operation

Operating principle
IR thermometers measure the surface temperature of an object. The sensor on the device
records the heat radiation from the object which is emitted, reflected and transmitted, and con-
verts this information into a temperature value.
The emission level is a value used to describe the energy radiation characteristics of a material.
The higher the value, the more capable the material is of emitting radiation. Many organic
materials and surfaces have a degree of emission of approx. 0.95. Metallic surfaces or shiny
materials have a lower degree of emission and therefore return inaccurate measuring values.
Therefore the emission ratio can be set at the the devices IR 650-12D and IR 800-20D.
Measuring:
1. Direct the measuring hole (8) best vertically on the measuring object. Observe the
measuring object not to be smaller than the IR-measuring spot of the device (also refer to
IR-measuring spot size).
2. Press the measuring button (5) and hold it down. The measuring value is indicated on the
display (22). The displayed value corresponds with the average surface temperature of the
IR-measuring spot. During measurement "SCAN" (10) is shown in the display.
3. After releasing the measuring button (5) the last measuring value (22) will be displayed for
further 7 seconds for better readout. "HOLD" (11) will also be displayed.
4. 7 seconds after releasing the measuring button (5) the device turns off automatically.
5. When the measuring temperature range is exceeded "——" is displayed.
For determination of the hottest spot of the measuring object you have to "scan"
the object with impressed measuring buttton (5) performing systematic zigzag-
movements until you have found the hottest spot. The highest temperature
measured is shown in the lower left of the display as Maximum temperature (20).
In order to obtain exact measuring values the infrared thermometer has to be
adjusted to the ambient temperature. Allow the device to adjust to the ambient
temperature when relocating.
Shiny surfaces affect the measuring result. For compensation, the shiny part of the
surface can be covered with adhesive tape or matt black paint. The device is not
able to take measurements through transparent surfaces such as glass. Instead,
it measures the surface temperature of the glass.
Longer measurements of high temperature with low measuring distance lead to
self-heating of the measuring device and thusly to mismeasurement. In order to
obtain exact measuring values think of following rule of thumb: The higher the tem-
perature the higher the measuring distance and the shorter the measuring time.
IR measuring spot size - Distance to Spot ratio; D/S
In order to obtain precise measuring results, the object to be measured must be larger than the
measuring spot of the IR thermometer. The temperature recorded is the average temperature
of the area measured. The smaller the object to be measured, the shorter the distance must be
to the infrared thermometer. The precise size of the measuring area is shown in the following
diagram. It is also printed on the device. For precise measurements, the object to be measured
should be at least twice the size of the measuring spot.
D:S 20:1 IR 800-20D
Spot 12,7 mm
Distance 254 mm
D:S 12:1 IR 650-12D
Spot 12,7 mm
Distance 152 mm
Laser
InfraRed
25,4 mm 38,1 mm
508 mm 762 mm
Laser
InfraRed
25,4 mm 38,1 mm
305 mm 457 mm
The optimal measuring distance for the devices IR 650-12D and IR 800-20D is
the focal point of both target lasers since here is the most precise measuring
ensured. The size of the measuring spot in the focal point is 12.7 mm (0.5 inch)
Dual target laser
The dual target laser can be activated and deactivated. Turn the measuring device on by
pressing the measuring button (5). Press the button "up" (2). With the laser is activated
"Ziellaser Aktiv" (12) is displayed. When pressing the button "up" (2) again the target laser is
deactivated, "Ziellaser Aktiv" (12) goes out.
Background illumination
With running measuring device use the button "down" (4) to activate/deactivate the background
illumination.
°C/°F conversion between measurement units
Using the switch °C/°F (6) the measuring unit can be switched from °C (degree Celsius) to °F
(degree Fahrenheit). The switch is located in the battery compartment (7).
Setting the emission level
The measuring device allows setting the emission ratio. Thus different materials and surfaces
can be measured precisely (also refer to Mode of Operation).
1. Turn the measuring device on by pressing the measuring button (5).
2. Press the button "Mode" (3) that often until the symbol for the emission ratio (19) starts
flashing in the display.
3. Using the buttons "up" (2) and "down" (4) the emission ratio can be adjusted from 0.10 to
1.00 depending on the respective measuring object.
4. Confirm your input with the measuring button (5) or press the button "Mode" (3) in order to
get to the next setting.
5. After turning off the device the set value remains stored.
Right after the technical data you will find a table with typical materials and their
emission ratio. Many organic materials have an emission ratio of 0.95. Thus the
default setting of the emission ratio is 0.95. To determine the emission ratio of a
surface the temperature of the surface to be measured can also be measured with
a conventional thermometer and with a special surface sensor. Change the emis-
sion ratio of the infrared thermometer until the measuring value (22) matches this
of the conventional surface measuring. This, however, is only necessary for highly
precise measurements.
Permanent operation (Locking function)
The measuring device is equipped with a locking function for long-term measurements.
1. Turn the measuring device on by pressing the measuring button (5).
2. Press the button "Mode" (3) that often until the symbol for permanent measuring (13) starts
flashing in the display.
3. The permanent measuring function can be activated using the buttons "up (2) and "down
(4) (Display "ON").
4. As soon as you press the measuring button (5) the permanent measuring function is acti-
vated. The measuring device now measures permanently until the measuring button (5) is
pressed again. Besides the present measuring value (22) the maximum temperature (20)
is also displayed.
Alarm mode
The measuring device is equipped with an alarm function when it exceeds preset temperature
values. The alarm is effected by a beeper and by flashing red of the background illumination.
Due to this function the measuring device can be used optimally for e.g. controls. The device
disposes of two adjustable temperature values (upper and lower alarm value). The alarm is
triggered on underrunning the lower alarm value or exceeding the upper alarm value. Those
values can be adjusted and activated independently.
To activate the alarm, proceed as follows:
1. Turn the measuring device on by pressing the measuring button (5).
2. Press the button "MODE" (3) as often till the symbol for the upper alarm value (14) is
flashing and a temperature value is displayed.
3. Using the buttons "up" (2) and "down" (4) sets the upper alarm value which triggers the
alarm on excession.
4. To activate the upper alarm value press the button "MODE" (3) as often till the symbol for
the upper alarm value (14) is flashing and "ON" or "OFF" is displayed.
5. The upper alarm value can be activated "ON" or deactivated "OFF" using the buttons "up"
(2) and "down" (4).
6. Press the button "MODE" (3) as often till the symbol for the lower alarm value (15) is flashing
and a temperature value is displayed.
7. Using the buttons "up" (2) and "down" (4) sets the lower alarm value which triggers the
alarm on underrun.
8. To activate the lower alarm value press the button "MODE" (3) as often till the symbol for
the lower alarm value (15) is flashing and "ON" or "OFF" is displayed.
9. The lower alarm value can be activated "ON" or deactivated "OFF" using the buttons "up"
(2) and "down" (4).
10. After turning off the device the set values remains stored.