6243/44 DC Voltage Current Source/Monitor Operation Manual
4.9.3 Integration Time and Measurement Time
4-47
When a capacitive load (C
L
) is connected as the load, time is also required for C
L
charging in addition
to the settling time described above.
Tc = Tc: Charge time
Set Measure Delay (Td) higher than the higher of the Ts and Tc described above.
4.9.3 Integration Time and Measurement Time
The measurement time (Tm) is calculated from the integration time (Tit) and the internal processing time
(Tk) according to the following formula.
Tm = Tit + Tk
The integration time (Tit) can be selected and set between 500 s and 2000 ms.
The internal processing time Tk becomes, in accordance with the source mode and the Memory Store
mode.
Also, when the Memory Store mode is OFF and Normal-ON, the following processing times are added by
NULL calculation, Comparator calculation, and measured value display.
NULL ON: 0.25 ms
Compare ON: 0.6 ms
Display OFF: -0.25 ms
Example: When in the DC source mode, and integration time: 1 PLC (50 Hz), Memory Store:
Normal-ON, NULL operation: ON, Comparator calculation: ON, measurement time
becomes as follows.
Tit = 20 ms
Tk = 5.8 + 0.25 + 0.6 = 6.65 ms
Tm = Tit + Tk = 26.65 ms
Source mode Memory Store Tk [ms]
DC OFF 5.5
Normal-ON 5.8
Burst-ON 3.2
Pulse OFF 4.5
DC sweep Normal-ON 4.7
Pulse sweep Burst-ON 2.2
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