Ahlborn ALMEMO 2290-4 V5 - Function Selection and Activation

5.2 Function Selection and Activation
After a reinitialisation (see 3.3) the function group 1 is selected (see below) and,
at first, the functions max value and min value are available with key F1, and the
measuring range is available with key F2. However, in addition to these basic
functions the instrument ALMEMO
®
2290-4 also provides a large number of
further functions for scaling and correcting sensors, implementing automatic
measuring point scans, averaging, monitoring, storing and also providing
outputs of measured values to peripheral devices.
However, as it is usually not necessary to have all functions available but some
with certain sensors and others only for data outputs etc., the functions can be
activated for specific applications by different methods. They can be
automatically activated via sensors or output modules (see below) or activated
individually by selecting a function group in display mode or via interface. This
ensures a quick access by using the keys F1 and F2 and it reduces the risk of
incorrect inputs.
The active functions are selected by repeatedly operating the keys F1 or F2. If
the key is pressed for lo
nger than one second it is possible to switch back to
the previous function. The functions can be identified by a 2-digit abbreviation in
place of the dimension, as follows:
F1
Meas.Functions
Function Access
F2 Programming Values
Function Access
Function Group:
0123456789 0123456789
Max Value (Hi)
MH
Display Mode
DM
0 1 2 3 4 5 6 7 8 9
Min Value (Lo)
ML
Range
R
Memory Free MF
# # # # # #
Averaging Mode
AM
++
Print Cycle
PC
*
#
*
#
*
#
Cross-Sectional Area
CS
+++++
Average Value
AV
+ +
Diameter, Normalized
DN
+++++
Count of Avg. Val.
C
+ +
Atmospheric Pressure
mb
~~~~~
Time Constant
s
+ + + +
Temp. Compensation
TC
°°°°° °
Volume Flow
V
+ + + + +
Locking Mode
LM
Time
TM
* Limit Value Max (Hi)
LH
Date
DA
*
Limit Value Min (Lo)
LL
Start Time
ST
# # #
Zero Point Correction
ZC
" ""
Start Date
SD
# # #
Slope (Gain) Correction
SC
" ""
End Time
ET
# # #
Ambient Temperature
AT
^ ^ ^ ^
End Date
ED
# # #
Emissivity Factor
EF
^ ^ ^ ^
Automatic Activation by:
# Option S Data Logger
* Interface Modules
^ Infrared Sensors (Elementflag = Ir)
+
Flow Sensors (Dim = m/s)
" pH Probes (Dim = pH)
° Probes for Dyn. Pressure and pH
~
Humidity, Dyn.Press., O
2
Sensors
Base Value
BA
Factor
FA
Exponent
EX
Analog Output-Start
AS
Analog Output-End
AE
Baud Rate,Output Format
BR
****
*
#
*
#
*
#
Device Address
A
18 ALMEMO

2290-4
Display and Keypad