22
9.
DISPLAY AND KEYPAD
9.1
Display and menu selection
The display (5) incorporated in the ALMEMO 2590A series consists of a dot
matrix LCD display with 128x64 pixels, or 8 rows of 8 pixels each.
Menu selection
(see 10) provides the following :
3 measuring menus for acquiring measured values,
Additional function menus (see 12), also
accessible from any measuring menu by pressing
key
<FCT>
,
3 programming menus for programming sensors
(see 13), device parameters (see 14), and output
modules (see 15),
Info menu (see 10) for device information, sensor in-
formation
To call up menu selection
, depending on menu :
◄
... or
<MENU>
To switch on display
illumination (see 14.3)
< * ON >
To switch device
OFF
press and hold down key(s) :
ON
To select menus press key(s) :
or
...
To call up the selected menu press key(s) :
or
PROG
To view the most important device information:
< INFO>
9.2
Measured value display and status symbols
The
Sensor display
menu will show the selected
measuring point, the measured value, and in
some cases the functions of importance for this
measured value, plus any further measuring
channels assigned to the connector in question.
For the
meas. value
a row of status symbols is available :
Symbol :
No sensor, measuring point deactivated
´
- - - - -
´
Relative measuring with respect to a reference value
REL
Measured value modified with sensor correction or scaling
Averaging in progress
Output function
D
iff,
H
i,
L
o,
M
(t),
A
larm (see 13.12.5)
D
,
H
,
L
,
M
,
A
C
Compensation
T
Temperature,
P
Atmospheric pressure,
.
continuous
CT. P.
(
.
flashes)
Limit value exceeded, maximum or minimum
or
flashes
Overshoots measuring range Maximum value
O
flashes
Undershoots measuring range Minimum value
U
flashes
