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
C
L
· V
RL
Is
