Specifications
RUSKA 7250, 7250i, 7250xi & 7250LP
Users Manual
4-20
gkn028.bmp
Figure 4-18. Menu | Program | Edit - Menu
5. Using the numeric keypad, enter the values for Pressure, Tolerance, Dwell time, and
Max time, pressing ENTER after each value. The rotary knob may be used to skip
fields.
6. At the 0 step, enter the next pressure and the Calibrator will automatically insert a
new pressure step.
7. Repeat steps 5 and 6 until the test sequence is complete. The Tolerance, Dwell time
and Max time will default to the value programmed in the first program step, and
only need to be changed if a different value is desired for a particular step.
8. It is often suggested that the last point in a calibration program is to vent the pressure
to atmosphere. This can be achieved by selecting the VENT function key as the
pressure set-point. (Note, you can use the vent as a set-point at any point in the
program. The dwell and max time function with vent just as they would at a
controlled set-point.)
9. When all steps have been entered, press PREVIOUS to return to the Named
programs screen. See the section below, Changing the Name of a Program, for
creating a user-defined program name.
Automatically Generating a Program
For the Calibrator to automatically generate a program, the user must input the first
set-point pressure, the last set-point pressure, and the number of steps in between, as well
as the dwell time, max time and tolerance common to all set-points.
1. Ensure that the units, limits, and control parameters are set to their desired values.
2. The program is entered from the Program menu. From the Main Menu (press
PREVIOUS until the Main Menu appears), press Menu [F6] | Program [F4].
3. Use the rotary knob to highlight “new”. If these steps are used on an existing
program, all program steps will be deleted and replaced with the automatically
generated program.
4. Press Edit [F4]. Since “new” was highlighted, the RUSKA 7250 will create a new
program and give a default name of NAMEnn where nn is a two digit number. The
program editing screen will appear, displaying the first step.
5. Press Auto [F3].