signal is not an acceptable full range value, the operator has an opportunity to correct any problems at this stage prior to pressing ENTER. Alternatively, the operator can press ESC to exit SETUP/CAL and return later. See Appendix D.
10.8.3. Resetting Zero and Span
Should it be required to zero and set a new span value for a given channel, The menu option is provided that will present the programmer with the zero menu first, followed by the span, or cal, menu. After selecting a channel in the CHANNEL SELECT portion of the SETUP/CAL menu, press the number 7 key to select CALIBRATE. ZERO & SPAN is selected by pressing the number 2 key. The ZERO window is displayed first. It contains the chosen channel and the incoming signal on that channel. If the signal displayed is within an acceptable range for zero, Press the ENTER key to accept this signal as representing a display of zero while monitoring the transducer. If this signal is not appropriate, the user may correct the problem while the window is displayed or press the ESC key and come back at a later time to zero and span.
After setting the zero of the power supply, the SPAN menu window is displayed. If the displayed signal is an acceptable full range value, press ENTER to accept it. The previously programmed display returns with the selected channel now displaying the CAL’d value. If the incoming signal is not an acceptable full range value, the operator try to correct any problems at this stage prior to pressing ENTER or, by pressing the ESC key, they can exit SETUP/CAL and return to perform this procedure at a later date. See Appendix D.
10.8.4. Setting a Multiplication Factor
For convenience, it is possible to leave a channel setup one way and merely multiply the display value by some factor and replace the display with the new value. An example might be to set up a channel to read from zero to one hundred percent and use a multiplication factor to make the display read from zero to 500 SCCM. An infinite number of possibilities are possible.
Once a channel in the CHANNEL SELECT portion of the SETUP/CAL menu has been selected, press the number 7 key to select CALIBRATE. From the CALIBRATE menu, choose MULTIPLIER by pressing the number 4 key. While the MULTIPLIER window is in the display, enter the multiplication factor and press ENTER. The display returns to normal with the selected channel now displaying the product of the normally displayed value and the entered factor.
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