01/10 347 LB 444 K-40
20
6.2 Operating Mode
Measurement mode
K20/KCl.
The parameters that are relevant for the potassium content
measurement are set automatically.
• linear characteristic
• time constant 300 s
• measuring path “1”
• no decay compensation
Error mode
in case of error
Stop measurement
The measurement process stops if an error occurs. The error is
indicated on the display.
Push <enter> to clear the error message on the display.
If the error has been eliminated, push <run> to start the
measurement again.
in case of error
Continue measurement
If you select “continue measurement” the error is displayed,
but the measurement continues.
Relay in error case
Hold state
The max./min. relays behave corresponding to the measured
Concentration.
Current following
The max./min. relays follow the fault current (see chapter 6.4)
Current output error
Current: HOLD
The output current is held at the last value where the error
has occurred.
VALUE
In case of error, a pre-defined output current is selected (see
chapter 6.4).
RS232 Interface:
The RS232 Interface is located on the front panel of the evaluation device.
Select baud rate by pressing <^^^> and confirm with <enter>.
Select device to which data is to be transferred: select either PC, printer or modem.
Terminal program settings:
In LB 444 K-40: Printer
In terminal program: 9600 baud, 8 data bit, 1 stop bit, no parity, protocol: X on / X off.
RS 485: Presently not used.
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