Front panel operation 19
3. Press the UP or DOWN key until “LONG INTEGRATION” is displayed and press
ENTER.
4. To stop taking long integration readings, press any front panel key. As long as the
instrument remains in the long integration display state, the measurement process can be
resumed by pressing the UP or DOWN key.
NOTE
LONG INT TRIG NOT DETECTED message
This message may take a few seconds to appear. With the trigger edge set to
NEITHER, this message may appear if level setting causes no rising edge detection.
A valid trigger level is not required if the trigger edge is set to NEITHER. For the
battery channel (#1), this message will only appear if the range of the trigger level
setting matches the selected trigger level range. For the charger channel #2, the trig-
ger level range setting is not user selectable.
NOTE
If you select AUTO TIME to set the integration time, the pulse timeout message
“LONG INT TRIG NOT DETECTED” will display if the output is OFF. This mes-
sage indicates that the integration time has not been updated. To update the integra-
tion time, select AUTO TIME after the output is turned ON.
Programming examples: long integration measurements
The following command sequence will trigger and return one long integration measurement:
Battery channel (#1)
Command
Description
SENS:RANG 5
‘ Select 5A range.
VOLT 15
‘ Set output voltage to 15V.
CURR 0.75
‘ Set current limit to 750mA.
OUTP ON
‘ Turn output on.
SENS:LINT:TLEV:RANG 0.5
‘ Select 1A trigger level range.
SENS:LINT:TEDG RISING
‘ Select rising trigger edge to initiate mea-
surement.
SENS:LINT:TLEV:ONE 0.1
‘ Set trigger level to 100mA for 1A trigger
level range.
SENS:LINT:TIME:AUTO
‘ Set integration time automatically for single
pulse.
SENS:FUNC “LINT”
‘ Select long integration function.
READ?
‘ Trigger and return one reading and reading
shown on display.