Process Unit 73 LF - Knick

How to set the rinsing cycle parameters
Open a Parameter Setting menu, select ”Probe
Rinsing” and confirm with .
Press to select ”Probe Rinsing On” and confirm
with .
Enter interval and step durations using scrolling
and cursor keys (see page 2–5) and confirm your
entries with .
If you have set one of these steps to 0000 s, it is
omitted completely.
When probe rinsing is enabled in the Parameter
Setting menu, the next automatic start of the rinsing
cycle is only performed after a complete interval
has been expired.
Tips for Application
While the rinsing steps are performed, you can
change the step durations. This allows you to
shorten or terminate step times that are too long.
Timer Controlled Rinsing Cycle
Set an interval.
After expiration of this interval, a rinsing cycle will
be started automatically.
If you want to lock automatic rinsing cycle (e.g.
because you do not want to interrupt an important
measurement), apply a current > 20 mA to the current
input (e.g. by directly connecting the power
output to current input).
After a power failure the interval timer is reset.
Then the next automatic start is only performed
after a complete interval has been expired.
Remote Controlled Rinsing Cycle
Manual Start of Rinsing Cycle
Set the interval ”0000”.
Apply a current of 10 to 20 mA to the current input
for at least 2 s (e.g. by connecting the power output
via a resistor of 1.5 k). This starts a rinsing
cycle. (Interval timer will be reset.) If the current is
applied for a longer period of time, the probe remains
in wait position until the current is removed.
Open the menu and press or
to select ”Meas. Point Maintenance”.
Capabilities 9–47