Adjusting With Internal Weight (Only Plj/Alj); Adjusting With External Weight (Only Pls/Als) - KERN PLS Operating Instructions Manual

6.6.1 Adjusting with internal weight (only PLJ/ALJ)

The installed adjusting weight allows checking and resetting the weighing accuracy at
any time.
The automatic adjustment function is always active.
You can also start adjustment manually by pressing the Cal-button.
Automatic adjustment is started when the balance is
• cut off from power supply,
• when changing temperature
• after a time interval
Temperature / time controlled adjustment is taking place:
5 minutes before the start of automatic adjustment, this will be announced by a "º C",
(change of temperature) or a "►" (after a certain time interval ends) symbol on the
display. The user must complete his/her weighing process within this time. After 5
minutes [ CAL 30 ] appears on the display. This starts a "count down" of 30 seconds
[ CAL 30 ] → [ CAL 0 ]. During these 30 seconds it is possible to cancel the
adjustment by pressing the TARE key. This makes the balance return to weighing
mode in order to e. g. complete an unfinished measurement.

6.6.2 Adjusting with external weight (only PLS/ALS)

Carry out adjustment with the recommended adjusting weight (see Chapter 1
„Technical Data").
Procedure for adjustment:
Observe stable environment conditions. A warming-up time of ca. 2 hours for
stabilisation is necessary.
Use the ON/OFF-button to turn on the balance.
Press CAL-button; the display shows NO CAL.
Wait until LOAD is displayed, then place adjusting weight (see Chapter
1 „Technical Data") carefully in the centre of the weighing plate.
The display shows CAL, adjustment is started.
The display shows UNLOAD, adjustment is completed.
Remove adjusting weight, the balance will automatically return to
weighing mode.
In case of an adjustment error or wrong adjusting weight CAL Err is displayed;
repeat adjustment process
Keep test weight with the balance. Daily checking of the weighing accuracy is
recommended for quality-relevant applications.
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