RKI Instruments SP-220 TYPE F - Page 50

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5
Use the AIR or MODE
button to scroll to the
MANU_CAL menu item.
6
Press and release the
POWER button. The gas
reading will begin to
flash.
7
Apply calibration gas
for 1 minute.
Depending on your
calibration kit, you will need
to either:
a. Connect the gas bag
tubing to the
instrument’s inlet or
b. Connect the tubing
from the demand flow
regulator to the
instrument’s inlet.
8
Use the AIR and MODE
buttons to adjust the
gas reading to match
the value listed on the
calibration cylinder.
9
Press and release the
POWER button. The
instrument will perform
a gas adjustment and
will return to the
MANU_CAL menu item.