Keithley 2302 Instruction Manual page 78

3-16 Pulse Current Measurements
SENSe[1]:PCURrent:AVERage <NRf>
SENSe2:PCURrent:AVERage <NRf>
1. When requesting a single reading (FETch?, READ?, or MEASure?), average count
2. When requesting an array of readings (FETCh:ARRay?, READ:ARRay? or
3. For pulse current digitization, use an array reading command (such as READ:ARRay?)
4. Signal oriented measurement commands (e.g., READ?) are covered in Section 9.
SENSe[1]:PCURrent:TIME
SENSe2:PCURrent:TIME
When manually setting the pulse HIGH, LOW, and AVERage time, make sure that:
1. When manually setting the pulse high, low, and average times, make sure that the
2. Make sure to factor in trigger delays (both the internal plus the user) when determining
3. AUTO time will account for the internal trigger delay (15msec) but not for any user trig-
SENSe[1]:PCURrent:TIME:DIGitize <NRf>
SENSe2:PCURrent:TIME:DIGitize <NRf>
This command allows you to specify the integration time that occurs when the Model 2302,
2306, 2306-PJ, or 2306-VS is digitizing or in burst mode. (SENS:PCUR:SYNC:STAT is OFF
for the particular channel.) Units with firmware version at or below B09 will have digitization
occur at the integration rate of 33.3μs. With firmware version B10 and beyond, the integration
rate will be at the value set with this command. This feature allows you to sample a pulse load
for a longer time than the existing method by increasing the integration time from 33.3μs.
NOTE
SENSe[1]:PCURrent:SYNChronize <b>
SENSe2:PCURrent:SYNChronize <b>
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specifies the number of pulse current measurement conversions to average for the read-
ing. For example, with the average count set to 10, READ? will trigger 10 pulse current
measurement conversions and return (and display) the average of those 10 battery chan-
nel conversions (charger channel command similar).
MEASure:ARRay?), average count specifies the number of pulse current measurements
to place in an array. For example, with the average count set to 10, READ:ARRay? will
trigger and return 10 battery channel readings (charger channel command similar).
to return the digitized readings.
integration time only covers the portion of the pulse to be measured.
integration times. Before the integration process begins after pulse detection, the internal
trigger delay of 15µsec (for code execution) in addition to any user specified trigger
delay must elapse.
ger delay (user trigger delay is set using the DELay command).
Pulse current digitization is also known as pulse current burst mode.
Boolean parameters:
•ON or 1 - Enables trigger synchronization for pulse current measurements. A pulse
current reading will not trigger until the specified trigger level is detected and the
specified trigger delay (both the internal plus the user delay) period expires.
Applies to battery channel (#1)
Applies to charger channel (#2)
Applies to battery channel (#1)
Applies to charger channel (#2)
Applies to battery channel (#1)
Applies to charger channel (#2)
Applies to battery channel (#1)
Applies to charger channel (#2)