Long Integration Display Mode; Long Integration Measurement Procedure - Keithley 2302 Instruction Manual

4-10 Long Integration Measurements

Long integration display mode

Long integration measurements are displayed with the long integration display mode
selected. This display mode is selected as follows:
NOTE
1.
2.
3.
NOTE

Long integration measurement procedure

The following steps summarize the procedure to perform long integration current
measurements:
1.
NOTE
2.
3.
NOTE
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To display measured readings if the instrument is in the settings mode, press the SET
key until the blinking stops (the measured readings can then be displayed). To
determine if the instrument is in the settings mode, check for a blinking cursor in a
digit of the voltage or current field (if present, the instrument is in the setting mode).
Press the DISPLAY key to access the display menu.
If the desired active display is not selected, use the
display. The top line of the display will show which display is active as either DISPLAY
TYPE #1 or DISPLAY TYPE #2.
Scroll through the DISPLAY menu
played and press ENTER.
For details on display modes, see "Display modes" in Section 1.
Set the output voltage and current limit, and press OPERATE.
Setting the trigger level with the output off will also cause the pulse timeout message
to appear. However, the trigger level will be set.
When using the battery channel, select the desired trigger level range (5A, 1A, or
100mA) from the TRIG LEVEL RANGE item of the LONG INTEGRAT #1 menu. For
both channels, long integration measurements are automatically performed on the 5A
current range.
From the LONG INTEGRAT #1/#2 item of the menu, set integration time, pulse time-
out, trigger edge and trigger level as appropriate. (LONG INTEGRAT #1 refers to the
battery channel while LONG INTEGRAT #2 refers to the charger channel.) If using the
battery channel (#1), make sure to set the trigger level for the trigger level range selected
in step 2.
If you select AUTO TIME to set the integration time, the pulse timeout message
"LONG INT TRIG NOT DETECTED" will occur if the output is OFF. This message
and keys to toggle the active
or key until "LONG INTEGRATION" is dis-