Thermo Scientific Orion 310, Instruction Manual

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PerpHecT ® Orion 310, 320, 330 Instruction Manual
24 Using the Orion 320
Check Out:
1. After the self-test is completed, the meter will be in the
MEASURE mode.
a. Press the MODE key until the pH mode indicator is
displayed. Main display should read a steady 7.00
± 0.02.
b. If not, press CAL key. Select a one-point calibration, “7”, to
change the pH reading. When READY lights up, press YES.
c. The main display should read 100.0 with the legend
SLP in the upper display. If so, press YES. If not, use the
SCROLL (
▲
,
▼
) keys to change the value to 100.0 press YES.
d. The meter advances to pH mode and the display should now
read a steady 7.00
± 0.02.
e. Press the MODE key to enter millivolt mode. Display should
read 0
± 1.