How To Calibrate - Fluke 74X Series Calibration Manual

74X Series
Calibration Manual
1. If
2. If
3. If

How to Calibrate

Follow these general instructions for all calibrations:
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Proceed as follows:
1. Turn on the UUT , press [SETUP] , and then the
2. The cursor bar should be at the
3. For
32
is to be calibrated,
mA Source
words, re-calibrating
mA Measure
is to be calibrated, the following sub-routines should be done
Ohms Measure
first in the order shown:
Ohms Measure . This means that re-calibrating
Measure can have an impact on Ohms Measure
is to be calibrated,
TC Measure
Calibrating
Volts DC Source
also characterizes component RT2, which could affect the
TC Measure
function (of which there is no calibration sub-routine), and
TC Source
affects the contrast of the display LCD.
Operate the UUT on battery power. Make sure the battery is fully charged. Do not
use the battery eliminator (BE9005).
Allow each item of calibration equipment to satisfy its specified warm-up period.
Allow the UUT a minimum of 5 minutes to warm up.
For each calibration, make sure the calibration equipment has settled and that the
"unsettled" annunciator on the UUT is not displayed.
with another subroutine, use the Ù (up) and Ú (down) keys to move the cursor to the
desired subroutine. To start, press the
, do as the display illustrates: connect a shorting bar across the
Volts DC Measure
right side high and low jacks (not the TC connector), then connect all three lows
(commons) together with two jumpers. Press the
should be calibrated first. In other
mA Measure
could affect
mA Source
Volts DC Measure , mA Measure
Volts DC Measure or mA
Volts DC Source
could affect
TC Measure.
Note
Next Page
Volts DC Measure subroutine
softkey.
Calibrate
Continue
.
, mA Source , and
.
must be calibrated first.
softkey three times.
. If you want to start
softkey.