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

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2. INSTALLATION
Page 13 © 2009 DH Instruments, a Fluke Company
2.3.3 Setting Up AutoTest Files
E-DWT-H’s RPM4-E-DWT supports automated test/calibration sequences. AutoTest
sequence parameters for testing specific DUTs can be stored in AutoTest files and recalled to
run a test. Consider setting up File AutoTests for frequently tested DUTs as part of the set up
process (see Section 3.1.3).
2.4 Operational Check
2.4.1 RPM4-E-DWT Pressure Measurement
2.4.1.1 Single Q-RPT Pressure Measurement
Refer Figure 1 and Figure 8 when following this procedure.
Let the RPM4-E-DWT warm up with power ON for approximately 15 minutes.
Open the reservoir vent valve (on the reservoir lid) by turning it CCW.
Open the reservoir shut off valve by turning it CCW.
If desired, change the pressure unit of measure using [UNIT] (see Section
3.7.3).
The value indicated should be near zero. Press [AutoZ]. This runs AutoZ to
zero the Q-RPT reading (see Section 3.7.10). Upon return to the main run
screen, observe that the indication of measured pressure has zeroed. If the
display fails to zero properly, the RPM4-E-DWT may need repair.
Note
It is normal for RPM4-E-DWT to indicate a value other than zero
when vented when gauge mode is first entered or ranges are
changed, especially if AutoZ is OFF. A value other than zero
may also be indicated, even after running AutoZero if a head
correction is being applied (see Section 3.7.8).
2.4.1.2 Dual Q-RPT Pressure Measurement
Refer Figure 2 and Figure 9 when following this procedure.
C heck that one of the two green Valve Status LEDs on the front panel of the
E-DWT-H is lit (the red LED should NOT be ON). If neither of the green
LEDs on the front panel lights, check that the 12 pin circular connector at the
rear of the RPM4-E-DWT itself is properly connected to the J1 ACC.
connector.
Let the RPM4-E-DWT warm up with power ON for approximately 15 minutes.
Open the reservoir vent valve (on reservoir lid) by turning it CCW.
Open the reservoir shut off valve by turning it CCW.
Put the lo Q-RPT shut off valve into the Lo Q-RPT Active position (turn fully
CCW) . This opens the Lo and Hi Q-RPTs to the TEST port.
Use [RANGE] (see Section 3.7.2) to select the Lo Q-RPT. If desired, change
the pressure unit of measure using [UNIT] (see Section 3.7.3).