D2624_15_A2
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Connect the probe
to the connector
on the EMCEE digital
conductivity meter
and depress the Measure
switch, M, with the probe out
of the fuel sample.
Zero reading should be
000, plus or minus 001,
in approximately three seconds.
If the instrument does not
meet the specification,
remove the probe and
depress Measure switch,
M. If the instrument
meets the specification
without the probe
attached, the probe
should be thoroughly rinsed
with isopropyl alcohol
and allowed to air dry
before retesting for zero.
If the instrument does not
meet the specification without
the probe attached, then the
adjustment procedure of A2.4
of the written standard
should be performed.
Note the calibration number
stamped on the probe.
Depress the
Calibration switch, C,
with the probe out
of the fuel sample.
The reading should be 10
times the number stamped
on the probe, plus or minus
005, after approximately three
seconds.
For example, probe
number equals 40,
meter reading must be 400
plus or minus 005, 395 to 405.
If instrument does not
meet specification,
proceed to A2.5 of
the written standard.
Zero adjustment is performed
without the probe attached
and the Measure
switch, M, depressed.
Insert a screwdriver in
the hole marked zero,
and adjust the control
until the display reads 000,
plus or minus 001.
Calibration is performed
without the probe attached
and with the Calibration
switch depressed.
Insert a screwdriver in
the hole marked Calibrate,
and adjust to within plus
or minus 002 of 10 times
the number stamped on the probe.
Do not attempt to
adjust the meter using
the plugged hole between the
Zero and the Calibrate holes.