Sensor Programming; Selecting The Input Channel; Measuring Point Designation - Ahlborn ALMEMO 2590-2A Operating Instructions Manual

SENSOR PROGRAMMING

13.
Since on ALMEMO
connector itself, the user will not normally need to reprogram each time. Pro-
gramming will only be necessary e.g. if sensor errors are corrected, if your own
sensors are scaled, or if certain limit values are stipulated; in these circum-
stances there are comprehensive programming functions available.
In the
SENSOR PROGRAMMING
ters for a channel can be entered, viewed,
checked, and modified via the keypad - providing
the appropriate sensor connector is plugged in.
Please note that series sensors featuring the lock-
ing mode can be protected against unintended al-
teration; therefore, if modification is required this
locking mode must first be lowered to an appropriate level (see 13.4). Functions
can only be selected if the locking mode allows.
To select all 4 menus for sensor programming :

13.1 Selecting the input channel

To view or edit a sensor's parameters you must first of all select the menu
SOR PROGRAMMING
or  . Only sensors actually connected and channels actually activated can
be processed. To activate new channels first press the key
channels. Then press
are active. For each input channel the associated connector number is dis-
played.
Menu
SENSOR PROGRAMMING :
Display of connector number and channel
To select next input channel press
To select previous input channel press
To accept the selection of all possible channels press
To reduce selection to all active channels press

13.2 Measuring point designation

Each measuring point can be assigned a 10-character alphanumerical designa-
tion denoting as clearly as possible the type of sensor, measuring location, and
/ or purpose. This designation is included in all standard measured value dis-
plays. In an output via the interface the measuring point designation appears in
the program header as ´DESIGNATION´ and also in the measured value list (see
Manual 6.6.1).
Input in the
Designation
Certain control characters at the beginning of the designation have special
functions :
´*J´ This defines a temperature sensor (NTC, PT100) as reference for external cold
junction compensation (see 11.2.6).
® devices all sensor programming is stored in the ALMEMO
menus all parame-
and then set the required input channel by pressing
<MACT>
to reduce this selection again to only those that
function (see 9.5)
< ►P >
... and
<MALL>
Connector : 0 Channel : 00


<MALL>
<MACT>
Designation : Temperature
®
< P ◄ >
...
SEN-

to select all
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