Measured Value Smoothing; Maximum / Minimum Values With Date And Time-Of-Day - Ahlborn ALMEMO 710 Operating Instructions Manual

13. Settings
measured value displays.
Certain control characters at the beginning of a channel designation have
special functions.
´*J´ This denotes a temperature sensor (NTC, Pt100) to be used for external cold
junction compensation. (see 12.2.7 Manual 6.7.3)
´#J´ This specifies that an internal cold junction sensor is to be used for a thermocouple.
(e.g. connector ZA9400-FSx with NTC) (see 12.2.7, Manual 6.7.3)
´*T´ This denotes a temperature sensor (NTC, Pt100) to be used as reference for tem-
perature compensation. (see 12.2.5)
´*P´ This denotes an atmospheric pressure sensor to be used as reference for atmo-
spheric pressure compensation. (see 12.2.6)
´#N´ This denotes that in flow measuring operations the actual measuring conditions for
temperature compensation and / or pressure compensation are to be converted to
standard conditions. (see 14.5)
The remaining characters can be used for the user's own descriptions.
´!´ at the end automatically indicates a specific user-defined linearization or multi-point
calibration. (see 13.2.13.3) This cannot be overwritten.

13.2.2 Measured value smoothing

One method for averaging (see 14.4) applies exclusively to the measured
value of the displayed channel (see 12.1); it is used to smooth measured val-
ues of an unstable or strongly fluctuating nature, e.g. flow turbulence, by
means of a sliding average over a specified time frame. With D7 sensors up to
4 primary channels can be smoothed internally at the same time over the aver -
aging period. (see 8.3)
The function ´Measured value smoothing´ can be set with any number of val-
ues to be averaged from 0 to 99. The smoothed measured value will then ap-
ply for all subsequent evaluation functions. Smoothing can thus also be used in
a combination with averaging over individual measured values. (see 14.4.1)
m1

Time constant (s) = smoothing / conversion rate·(V5 channels +1) is
calculated and displayed in the menu ´Smoothing´.

13.2.3 Maximum / minimum values with date and time-of-day

The highest and lowest values are identified from the acquired measured val-
ues for each measuring channel and continuously updated to memory together
with date and time-of-day. Maximum and minimum values are displayed in the
menus ´Sensor channels´, ´Measuring channel´, and ´Channel list´. These can
be output via function channels (s. 13.2.13.1) and via the interface.
Touching on these values opens the menu ´Maximum / minimum values´,
which lists not only the maximum and minimum values themselves but also
48 ALMEMO
time window
® 710
m15
∑
M=( m
)/N
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