Channel functions
their respective date and time-of-day. These values can be deleted individu-
ally; or all maximum, minimum, and average values for all channels can be
deleted together. This last function is especially advisable whenever a mea-
suring operation is started; it can therefore also be configured here accord-
ingly. (see 13.6.3) Whenever this data is deleted, the current measured value,
since measuring is a continuous process, will appear again immediately.
Cyclic clearing can be activated by programming the averaging mode ´CYCL´
accordingly. (see 14.4.3).
13.2.4 Averaging mode
The various ways of averaging via measuring channel scans are explained in
detail in the help text of the wizard ´Averaging´ (see 14.4); here the chosen
mode can be configured and tested. Touching on ´Channel functions´ > ´Aver-
aging functions´ opens the ´Averaging functions´ menu. The averaging
method can be defined for each channel via the function ´Averaging mode´
and can be set in a selection box from the following modes:
- - - Function, no averaging
CONT Averaging over individual measuring operations, either Manual or
all measuring channel scans from Start to Stop
CYCL Averaging over all measuring channel scans in a cycle
This menu displays not only the ´Average value´ of the selected channel but
also the ´Number´ of values to be averaged. The average value can be
deleted either separately or together with all maximum and minimum values.
For recording average values a function channel with quantity M(t)
(see 13.2.13) or the corresponding output function M(t) is required
- instead of the measured value (see 13.2.5.1)
.
13.2.5 Measured value output
13.2.5.1 Output function
It is possible, instead of the measured value, to output other measuring func-
tions, e.g. maximum / minimum / average / alarm value. This function can be
programmed as ´Output function´. (see Manual 6.10.4)
Saving, analog output, digital output need then only process the appropriate
function value. As a check on the modified output function the ´Measuring
channel´ display will show the following symbols : (see 12.1).
Examples:
1. If measured values are being averaged over a cycle the only output value of
interest is the average value itself, not the last measured value. With a data
logger this approach saves memory capacity.
2. The analog measured value from dew sensor FH A946-1 is not really signif-
icant. If limit value - maximum is set to approx. 0.5 V and the alarm value
function is programmed, the only values received are 0.0% for dry and
100.0% for dew.
ALMEMO
®
710 49
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