OHAUS Guardian 3000 Handbuch Seite 22

EN-20
6. Press and hold the left knob until the unit beeps and the
begin calibration at the set temperature.

a) The unit will begin to heat to the set temperature.
b) The Single Point Calibration icon
indicate that the calibration is running.
c) The left and right knobs will be disabled until the calibration is completed.
d) If the external probe is connected, the stirrer will turn on at 300 rpm.
e) To cancel the calibration while it is running, flip the standby switch off to
turn off the unit.
7. Once the unit has reached the calibration temperature, the
calibration temperature will blink.
8. With a secondary temperature measurement device, measure the temperature
of the top plate or the heated sample at the location of the external probe (if
using probe control).
9. Rotate the left knob to scroll to the measured temperature from the secondary
temperature measurement device, and then briefly press the left knob to select
the new temperature.
10. The unit will begin to regulate temperature with compensated error. When this
is complete, SAVE will appear and blink on the screen.
11. Measure the temperature at the same location as step 8.
12. Rotate the left knob to select from:
SAVE – to retain calibration (stirring will stop if using probe control).
a)
ADJ – to prompt fine tuning of calibration (return to step 9).
b)
RJCt – to cancel the single point calibration and return to the initial
c)
calibration menu.
13. If you select SAVE, the screen will return to the beginning of the calibration.
Rotate the left knob to BACK.
Guardian
on the display will blink to

TM
Hotplate-Stirrers
illuminates to
and the