· As long as the HOLD symbol (B) is visible on the screen, pushing the Backlight /
Down button (6) will switch on or off the backlight of the LCD display.
· As long as the HOLD symbol (B) is visible on the screen, pushing the SET button
(5) will show you MAX / MIN / AVG / DIF values during the last measurement
(after pushing the measurement trigger (10)).
MAX Maximum value of last measurement
MIN Minimum value of last measurement
AVG Average value of last measurement
DIF Difference between MAX and MIN value of last measurement
· As long as the SCAN symbol (A) is visible on the display and the TYPE-K ther-
mocouple is connected, the Type-K symbol (L) is visible on the display. The
display will show the temperature measured by the Type-K probe automatically
and only in the lower left quarter (J) of the display. In this case, it isn’t possible to
change to MAX / MIN / AVG / DIF!
pleAse note thAt the current temperAture vAlue (m) on the displAy is the tem-
perAture meAsured by the infrAred sensor (2).
SETTINGS
Press the SET button (4) for approx. 3 seconds to enter the settings. The Emissiv-
ity-symbol (H) starts to blink (first step of the settings). Each time you press SET
button (5) shortly, you jump to the next item of the settings menu. (The picture on
the right shows the sequence of the items in the settings menu.)
1. Emissivity [EMS]
The amount of infrared energy radiated by an object is proportional to the
temperature of the object and the ability of the material to radiate energy.
This ability refers to “radiation coefficient” or “emissivity”. Emissivity is the
ratio of the average emission power to a black radiator at the same temper-
ature. Emission is for materials between 0.10 and 1.00. Materials with low
emissivity (<0.60) emit little energy, typically for materials with a shiny, light
surface (e.g. metals). Materials with high emissivity (>0.90) emit much energy,
typically for matte, dark areas. The lower the emissivity, the more difficult it is
to measure accurately. (Check the emissivity table on the last page)
Most (90% of typical applications) organic materials and painted or oxidized
surfaces have an emissivity of 0,95 (pre-set in the unit). Inaccurate readings
will result from measuring shiny or polished metal surfaces.
To compensate, cover the surface to be measured with masking tape of flat
black paint. Allow time for the tape to reach the same temperature as the ma-
terial underneath it. Measure the temperature of the tape or painted surface.
If the emissivity symbol (H) is blinking, you can set the emissivity value with
the up button (4) and/or the down button (6).
MAX
MIN
AVG
DIF
EMS
°C / °F
H.AL ON/OFF
H.AL
L.AL ON/OFF
L.AL
3 sec.
1.
2.
3.
4.
5.
6.
OK
