5.2 Function selection and activation
Measuring instrument ALMEMO 2390-5 provides a wide variety of functions for
controlling measuring sequences, for acquiring, averaging, monitoring, and sa-
ving measured values, for outputting data to various peripheral equipment, and
for scaling, adjusting, and correcting sensors, etc.. Since these functions will
not be needed by the normal user all at once, they can be activated in various
ways on an application-specific basis.
After reinitialization (see Section 3.3) the
FUNCTION
key will initially have only the
following functions assigned : maximum value, minimum value, cycle, measu-
ring range, locking mode, and averaging mode, plus (with option S) the memo-
ry. Appropriate additional functions will then be activated depending on the
sensor programming (i.e. locking mode, averaging mode, etc., see below). Any
further functions that you frequently require can be enabled via the interface.
This approach is intended to maintain rapid access via the
FUNCTION
key and to
minimize the risk of accidentally entering incorrect information.
If it suddenly becomes necessary to have all functions activated for a limited
period, then the first time you press the
FUNCTION
key you must hold it down for
longer than 1 second. To verify that this has succeeded the ´
F
´ arrow in the dis-
play flashes.
The active functions can be selected by repeat-pressing the
FUNCTION
key. To
revert to the previous function arrangement press and hold down the FUNCTI-
ON key again. If a function is selected instead of a measured value, the ´
F
´ ar-
row in the display lights up.
Functions are shown in the display as a function value followed in the units po-
sition by a two-character abbreviation (as listed in the following table); in the ca-
se of sensor parameters, the channel number will also be shown:
Funktions
Value
Abbrev.
Activation
Memory
Maximum value (Hi)
1
:
127
.
3 MH
Default
Device
Minimum value (Lo)
1
:
023
.
4 ML
Default
Device
Average value
1
:
13
.
24 AV
Averaging mode >0
Device
Count of averaged val.
1
:
1234
C
Averaging mode >0
Device
Averaging mode
1
:
Cont
AM
Default
Sensor
Smoothing
00
DG
Hold down
FUNCTION
key
first time it is pressed
Sensor
Diameter standardized
1
:
0150
.
DN
Measuring range ´
Flow
´
Cross-section area
1
:
0175
.
CS
Measuring range ´
Flow
´
Sensor
Atmospheric pressure
1013
mb
Hold down
FUNCTION
key
first time it is pressed
Device
ALMEMO
2390-5
19
Display and keypad
Содержание ALMEMO 2390-5
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