Edit A Breakpoint Pair - Lakeshore 335 User Manual

FIGURE 5-8 Left: Scroll to highlight a breakpoint number; Middle: Press the enter key to highlight the sensor value of the selected pair ;
Right: Press the enter key again, and the temperature value is highlighted
If the curve you wish to enter has similar parameters as an existing curve, first copy the
similar curve (as described in Section 5.2.4) to a new location, then edit the curve to the
desired parameters.
To perform the Edit Curve operation, follow this procedure:
1. Press Curve Entry, scroll to Edit Curve, and press Enter.
2. Scroll to the desired curve and press Enter again.
3. Edit the curve header parameters using the standard keypad operation methods
described in section 4.2.3. Once curve header parameters are entered, the Curve
Point entry screen is displayed.
The Curve Point entry screen contains a scrollable list of all curve breakpoint pairs in
the selected curve. There are three columns in the list. From left to right the columns
are: breakpoint number, breakpoint sensor value, and breakpoint temperature value.
Initially the highlight is on the first breakpoint number.
Menu Navigation:
Curve Entry QEdit Curve
Interface Command: CRVHDR

5.9.1.1 Edit a Breakpoint Pair

To edit a breakpoint pair, follow this procedure:
1. To select a breakpoint pair to edit, scroll to the desired breakpoint number and
press Enter. The highlight moves to the sensor value of the selected pair.
2. Use the Number Entry method to edit the value. Refer to section 4.2.1.2 for
details on the Number Entry method.
3. Once the new sensor value is entered, press Enter to highlight the temperature
value. Again use the Number Entry method to enter the new temperature value.
4. Pressing Enter at this point will store the new breakpoint pair; pressing Escape
at any time when a sensor or temperature value is highlighted will cancel any
changes to either of the values and return the highlight to the breakpoint num-
ber.
If the sensor value entered is not between the previous breakpoint sensor value and
the following breakpoint sensor value, then the new breakpoint pair will be moved to
the position in the curve that bounds the sensor value of the new breakpoint pair. If
the pair is moved, a message will be displayed to indicate the location to which the
breakpoint pair was moved.
Menu Navigation:
Curve Entry QEdit (21–59)
Interface Command: CRVPT
QCurve Points (1–200)
ENTER
5.9.1 Edit Curve 79
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