Fluke Calibration RUSKA 7615, User Manual

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RUSKA 7615
Users Manual
4-4
Defining a New Pressure Unit
In addition to the standard units of measure provided by the Calibrator, four user-defined
units are available. To create one of these units, the user enters a name that is one to six
characters long and a conversion factor that is a multiple of kiloPascals (kPa).
For example, a millitorr, which equals one micron of mercury at 0 °C, is related to a
millimeter of mercury by a factor of 1,000. Thus, based on the conversion factors listed in
Chapter 1, Table 2-1, a millitorr would have a user-defined conversion factor of 7.500605
times 1,000, or 7,500.605. The user-defined name for this unit could be mtorr.
1.
The pressure units are defined from the Units Define Menu. From the Main Menu
(press PREV until the Main Menu appears) press Menu [F6] | Setup [F2] | Units [F3]
| Define [F1].
2. Press Next
↓
[F2] until the desired user-defined unit is highlighted.
3. The following sequence is used to change the name of the selected unit.
a.
Use the arrow keys to highlight the desired character in the matrix.
b. Press Add [F3] to add the character to the name entry box.
c. Repeat steps a and b until the desired name is entered. Press Clear [F4] to
start over.
d. Press Enter [F5] to accept the name.
4. Use the numeric keypad to enter the conversion factor and press Enter to accept.
5. Press PREV to return to the Units Menu. The new unit definition may be selected.
Changing the Number of Decimals
Each unit has a default number of decimal places used for pressure display. This may be
adjusted up or down by 1 decimal place.
1.
The decimal digits are set from the Setup User Menu. From the Main Menu (press
Prev until the Main Menu appears) press Menu [F6] | Setup [F2] | User [F2].
2. Press the down arrow key until the label Display digits is highlighted.
3. Use the Left and Right arrow keys to change the number of decimal digits.
4. Press PREV to exit the menu. Press CANCEL to return all edited fields to their
original values.
Setting the Alarm Limits
The Calibrator continually checks the measured pressure against high, low, and slew rate
limits. If the measured pressure exceeds the high limit, falls below the low limit, or
changes faster than the slew rate limit an alarm is generated.
1.
The alarm limits are set from the Setup Limits menu. From the Main Menu (press
PREV until the Main Menu appears) press Menu [F6] | Setup [F2] | Limits [F1].
2. Press the up and down arrow keys to highlight the desired limit.
3. Use the numeric keypad to enter the new value.
4. Press ENTER to accept the new value.
5. Default [F1], Max [F2], and Min [F3] put standard values for the field into the
numeric scratchpad.
6. Press PREV to exit the menu. Press CANCEL to return all edited fields to their
original values.