time the key is pressed. Press the 'MAX MIN AVG' key for approx.
2 seconds in order to leave this function.
Advice!
The measuring unit cannot be changed whilst the maximum,
minimum or average value is being displayed.
b) TIMER for the time-counter
The time-counter can be started by pressing the 'TIMER' key. It
counts time forwards ('count-up')since beginning the measure-
ment, if this is desired. The display shows minutes and seconds
until one hour has been completed. Beyond this, the expired time
is displayed in hours and minutes, whereby the symbol 'H' is addi-
tionally shown to indicate hours.The time display can be reset to
'0000', if you press the 'TIMER' key for approximately 2 seconds.
c) The 'HOLD' function
The 'HOLD' function can be switched on or off by briefly pressing
the key. 'HOLD' signifies that the instantaneously measured value
will be registered until the data-hold function is switched off again.
Changing over from °C auf °F or vice-versa is just as feasible as
activating the time-display, 'MAX MIN AVG' function, or the REL
reference value measurement.
d) The 'REL' reference value measurement
The reference value measurement is started by pressing the 'REL'
key. In addition, the current temperature display is set to '0.0', irre-
spective of the measuring unit (°C oder °F).
Subsequently, only the difference values are still displayed. If the
measured temperature then amounts to 5 degrees celsius (°C) less
for example, -5 °C will be displayed. On the other hand, if the mea-
sured temperature then amounts to 25 degrees fahrenheit (ºF)
more, 25 °F will be displayed. Just press the 'REL' key in order to
return to the current temperature display.
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