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 44
Note
•
The HEAD function is NOT range specific. The HEAD ON or OFF
status remains the same as Q-RPTs and ranges are changed. Edits
made to the head settings are independent of active range or
Q-RPT.
•
When a head correction is being applied, it is indicated by <h> in
the fourth character from the right in the top line of the MAIN RUN
screen (see Section 3.6.1). When the head correction is zero, the
<h> is not shown.
•
To change units of head height between inches and centimeters
and to change the test fluid species, use [SPECIAL], <3head> (see
Section 3.9.3).
3.7.9 [SDS]
 PURPOSE
The SDS function is not used in RPM4-E-DWT.
3.7.10 [AUTOZ]
 PURPOSE
To run the AutoZ function that zeros the active Q-RPT.
 PRINCIPLE
See Section 3.9.1,  Principle , for a full explanation of the AutoZ function.
The RPM4-E-DWT should be zeroed prior to running a calibration or test with the E-DWT.
 OPERATION
Note
For the AutoZ function key to run AutoZ, AutoZ must be turned ON for the
active range and measurement mode. AutoZ ON is indicated by <z> to the
left of the Q-RPT designator on the first line of the main run screen. AutoZ
ON and OFF is set using [SPECIAL], <1AutoZ> (see Section 3.9.1). If AutoZ
is OFF for the active Q-RPT, and measurement mode, <AutoZ is off> is
displayed when [AutoZ] is pressed.
To properly zero the RPM4-E-DWT prior to running a calibration or test, proceed as follows:
Close the reservoir shut off valve.
Open the TEST shut off valve.
Open the test system (disconnect) at the E-DWT-H TEST1 (top) port.
Be sure that the E-DWT-H is filled with oil up to the TEST port weep hole. Use the
variable volume to raise the oil level if necessary.
Press [AutoZ] from the RPM4-E-DWT main run screen. <Running gauge AutoZ> is
displayed briefly before returning to the main run screen.