6243/44 DC Voltage Current Source/Monitor Operation Manual
4.9.2 Measure Delay and Settling Time
4-46
Example 2: When 0.2 mA is applied to a 100 k resistor in the 320 A range
Is = 0.2 mA
V
RL
= 20 V
28 V
RL
= 560 s
9 V
RL
/ (Rs· Is) + 200 = 9 20 / (2.2 k 0.2 mA) + 200
= 609 s
From this follows that Ts = 609 s
Make setting so that Td 610 s
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.
Example 3: When a current is applied at 1 A and until it reaches 20 V for 0.1 F in the 32 A
range
Is = 1 A
V
RL
= 20 V
TS = 35 V
RL
/ (Rs· Is) = 35.20 / (22 k · 1 A)
= 31.8 ms
Tc = C
L
· V
RL
/ Is = 0.1 F · 20 V / 1 A = 2 s
Make setting so that Td 2 s
•6244
Example 1: When 0.2 mA is applied to a 100 k resistor in the 3.2 mA range
Is = 0.2 mA
V
RL
= 0.2 mA 100 k = 20 V
28 V
RL
= 28 20 = 560 s
9 V
RL
/ (Rs· Is) + 200 = 9 20 / (220 0.2 mA) + 200
= 4291 s
From this follows that Ts = 4291 s
Make setting so that Td 4.29 ms
Ts value Unit [s]
Range
|V
RL
| 10 V
|V
RL
| 10 V
|Is| 18000 digits |Is| 18000 digits
320 A to 10 A 300
Either 28 V
RL
or 9 V
RL
/ (RsIs) + 200 which is greater
than the other
Rs value
Range Rs []
320 A
3.2 mA
32 mA
320 mA
3.2 A
10 A
2.2 k
220
22
2.2
0.25
22 m
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