Peak Value Memory; Measured Value Memory; Relative Measuring - Ahlborn THERM 2420 Operating Instructions Manual

9. Measuring operations

9.3 Peak value memory

From the measured values acquired the high-
est and the lowest values are continuously
recorded. To display these peak values press
key or
MAX MIN
also includes the associated symbol.
To display maximum value press key :
To display minimum value press key :
To delete maximum value press and hold down key :
To delete minimum value press and hold down key :
To jump back to the operating range display press key :
As soon as you clear the memory, the current measured value will appear (be-
cause measuring is continuous).

9.4 Measured value memory

On the THERM 2420 any measured value can
be saved. To save the measured value press
key The currently saved value then ap-
MEM
pears in the function field preceded by the
symbol ´M´. To jump back to the operating
range display press key :

9.5 Relative measuring

One very useful function is to zero the mea-
sured value at certain locations or at certain
times as a reference value in order then to ob-
serve only the subsequent deviations.
By default this function is also locked in the de-
vice configuration (display ´LOC´) (see 10).
To zero-set the measured value press key :
To display relative measuring press arrow :
To return to normal measured value :

Setting to zero automatically deletes the maximum and minimum val-
ues for this channel. The MAX, MIN, and MEM functions are thus also
available for relative measuring.
10
. As a check the display
THERM 2420
MAX
MIN
MAX
MIN
M▲
M▲
REL
press and hold down
CLR
CLR