Fluke 744 Fluke 744 Users Manual - Page 42

or Pa. Metric, O, bar, g/cm - calibration procedure

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744 Users Manual 1. Connect a pressure module to the calibrator as shown in Figure 12. The threads on the pressure modules accept standard ¼ NPT pipe fittings. Use the supplied ¼ NPT to ¼ ISO adapter if necessary. 2. Press M for MEASURE mode. 3. Press p. The calibrator automatically senses which pressure module is attached and sets its range accordingly. 4. Zero the pressure module as described in the module's Instruction Sheet. Modules vary in zeroing procedures depending on module type. You MUST perform this step before you execute a task that sources or measures pressure. 5. If desired, you can change pressure display units to psi, mHg, inHg, mH2O, inH2O@, inH2O@60°F, ftH2O, bar, g/cm2, or Pa. Metric units (kPa, mmHg, etc.) are shown in Setup mode in their base units (Pa, mHg, etc.). Change the pressure display units as follows: a. Press s. b. Press Next Page twice. c. Press eor the Choices softkey with the cursor on Pressure Units. d. Select the pressure units with u or d. e. Press e. f. Press Done. 32

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744
Users Manual
32
1.
Connect a pressure module to the calibrator as
shown in Figure 12. The threads on the
pressure modules accept standard ¼ NPT pipe
fittings. Use the supplied ¼ NPT to ¼ ISO
adapter if necessary.
2.
Press
M
for MEASURE mode.
3.
Press
p
. The calibrator automatically senses
which pressure module is attached and sets its
range accordingly.
4.
Zero the pressure module as described in the
module’s Instruction Sheet. Modules vary in
zeroing procedures depending on module type.
You MUST perform this step before you execute
a task that sources or measures pressure.
5.
If desired, you can change pressure display
units to psi, mHg, inHg, mH
2
O, inH
2
O@,
inH
2
O@60
°
F, ftH
2
O, bar, g/cm
2
, or Pa. Metric
units (kPa, mmHg, etc.) are shown in Setup
mode in their base units (Pa, mHg, etc.).
Change the pressure display units as follows:
a.
Press
s
.
b.
Press
Next Page
twice.
c.
Press
e
or the
Choices
softkey with
the cursor on
Pressure Units
.
d.
Select the pressure units with
u
or
d
.
e.
Press
e
.
f.
Press
Done
.