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 trigg
er level to 100mA for 1A range.
SENS:PCUR:SYNC:TLEV:RANG 0.5 ‘ Select th
e 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? ‘ Trigge
r 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? ‘ Trigge
r 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
TestEquipmentDepot.com