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13. SENSOR PROGRAMMING
Since on ALMEMO
®
devices all sensor programming is stored in the 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
menus all parame-
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 : < ►P > ... and < P ◄ > …
13.1 Selecting the input channel
To view or edit a sensor's parameters you must first of all select the menu
SEN-
SOR PROGRAMMING
and then set the required input channel by pressing
or . Only sensors actually connected and channels actually activated can
be processed. To activate new channels first press the key <MALL> to select all
channels. Then press <MACT> to reduce this selection again to only those that
are active. For each input channel the associated connector number is dis-
played.
Menu
SENSOR PROGRAMMING :
Display of connector number and channel
Connector : 0 Channel : 00
To select next input channel press
To select previous input channel press
To accept the selection of all possible channels press <MALL>
To reduce selection to all active channels press <MACT>
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
function (see 9.5)
Designation : Temperature
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).