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Pulse Current Measurements 3-31
Pulse current digitization
The following command sequence returns 3600 digitized readings.
Battery channel (#1)
DISP:CHAN 1
‘ Sets active channel - battery.
SENS:CURR: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:PCUR:SYNC OFF
‘ Disable trigger synchronization.
SENS:PCUR:AVER 3600
‘ Set average count to 3600.
SENS:PCUR:SYNC:TLEV:ONE 0.1
‘ Set trigger level to 100mA for 1A range.
SENS:PCUR:SYNC:TLEV:RANG 0.5
‘ Select the 1A trigger level range.
SENS:PCUR:SYNC:DEL 500e-3
‘ Set trigger delay to 500msec.
SENS:PCUR:MODE LOW
‘ Configure to measure low pulse (trigger on
‘ falling edge).
SENS:PCUR:TIME:DIG 1e-4
‘ Set digitize integration time to 100us
‘ (firmware B10 or later only).
SENS:FUNC “PCUR”
‘ Select pulse current function.
READ:ARR
?
‘ Trigger and return 3600 readings after sync-
‘ ing to the falling edge for the 1st reading
only.
Charger channel (#2)
DISP:CHAN 2
‘ Sets active channel - charger.
SENS2:CURR:RANG 5
‘ Select 5A range.
SOUR2:VOLT 15
‘ Set output voltage to 15V.
SOUR2:CURR 0.75
‘ Set current limit to 750mA.
OUTP2 ON
‘ Turn output on.
SENS2:PCUR:SYNC OFF
‘ Disable trigger synchronization.
SENS2:PCUR:AVER 3600
‘ Set average count to 3600.
SENS2:PCUR:SYNC:TLEV 0.1
‘ Set trigger level to 100mA.
SENS2:PCUR:SYNC:DEL 50e-3
‘ Set trigger delay to 50msec.
SENS:PCUR:MODE LOW
‘ Configure to measure low pulse (trigger on
falling edge).
SENS:PCUR:TIME:DIG 1e-4
‘ Set digitize integration time to 100us
‘ (firmware B10 or later only).
SENS2:FUNC “PCUR”
‘ Select pulse current function.
READ2:ARR
?
‘ Trigger and return 3600 readings after sync-
ing to the falling edge for the 1st reading
only.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
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