DH Instruments E-DWT-H, Руководство по эксплуатации и обслуживанию

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E-DWT-H OPERATION AND MAINTENANCE MANUAL
© 2009 DH Instruments, a Fluke Company Page 42
 OPERATION
To activate the Freeze DISPLAY press [DISPLAY] , <6Freeze> . Pressing
<6Freeze> returns to the main run screen with the Freeze DISPLAY active.
With the Freeze DISPLAY active the main run screen is:
1. Pressure measured by active range of
RPM4-E-DWT when [ENT] was pressed
(displays 0.00 by default when Freeze
DISPLAY is first activated).
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Pressing [ENT] causes the current pressure measured by the active
RPM4-E-DWT Q-RPT to be captured and displayed.
Note
•
If the pressure measurement unit, mode or range is
changed while the Freeze DISPLAY is active, the Freeze
value defaults back to zero.
•
To go to a DISPLAY other than Freeze, press [DISPLAY]
and make a new DISPLAY choice (see Section 3.7.7).
•
The AutoTest function uses the Freeze display to
capture the measured pressure value when ENTER is
pressed at the test point (see Section 3.1.3).
3.7.7.7 Clean
 PURPOSE
To activate the Clean DISPLAY.
Note
See Section 3.7.7,  Principle.
 OPERATION
To activate the Clean DISPLAY press [DISPLAY] , <7Cln> . Pressing <7Cln>
returns to the main run screen with the Clean DISPLAY active.
With the Clean DISPLAY active the main run screen is:
1. Conventional main run screen first line.
2. “Clean” second line.
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Note
To go to a DISPLAY other than Clean, press [DISPLAY] and
make a new DISPLAY choice (see Section 3.7.7).
3.7.8 [HEAD]
 PURPOSE
To cause a pressure fluid head correction to be added to or subtracted from the pressure
measured by the RPM4-E-DWT Q-RPT in order to predict the pressure at a height other than
the E-DWT’s reference level.