Fluke 744 Fluke 744 Users Manual - Page 63

Pressurize the pressure line with the pressure, source to the desired level as shown on

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1. Connect a pressure module and pressure source to the calibrator as Figure 19 shows. The threads on the pressure modules accept ¼ NPT fittings. Use the supplied ¼ NPT to ¼ ISO adapter if necessary. 2. If necessary, press M for SOURCE 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. Pressurize the pressure line with the pressure source to the desired level as shown on the display. 6. 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 Documenting Process Calibrator Using Source Mode base units (Pa, mHg, etc.). Change the pressure display units as follows: a. Press s. b. Press Next Page twice. c. Press ewith the cursor on Pressure Units. d. Select the pressure units with the u or d keys. e. Press e. f. Press the Done softkey. 53

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Documenting Process Calibrator
Using Source Mode
53
1.
Connect a pressure module and pressure source
to the calibrator as Figure 19 shows. The threads
on the pressure modules accept ¼ NPT fittings.
Use the supplied ¼ NPT to ¼ ISO adapter if
necessary.
2.
If necessary, press
M
for SOURCE 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.
Pressurize the pressure line with the pressure
source to the desired level as shown on the
display.
6.
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
with the cursor on
Pressure
Units
.
d.
Select the pressure units with the
u
or
d
keys.
e.
Press
e
.
f.
Press the
Done
softkey.