6243/44 DC Voltage Current Source/Monitor Operation Manual
4.9.2 Measure Delay and Settling Time
4-45
•
6244
•
When the current limiter range is 320
A to 10 A: Ts = 0.3 + (0.8 + 7500/DIL)
Vs/100 [ms]
Example: Ts unit (ms)
(2) Current source
The 6243/44’s settling time (Ts) becomes, in accordance with the current source change value (Is),
the current sense resistance (Rs) and the load voltage, (V
RL
= R
L
· Is).
Set the Measure Delay (Td) higher than Ts.
•
6243
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
Current limiter
range
Vs [V]
Current limiter setting DIL(digits)
300
3000
5000
10000
32000
320
A to 10 A
1
0.6
0.3
0.3
0.3
0.3
10
2.9
0.6
0.5
0.5
0.4
20
5.5
1.0
0.8
0.6
0.5
Ts value
Unit [
s]
Range
|V
RL
|
10 V
|V
RL
|
10 V
|Is|
18000 digits
|Is|
18000 digits
32
A
35 V
RL
/ (Rs
· Is)
320
A to 2 A
300
Either 28 V
RL
or 9 V
RL
/ (RsIs) + 200 which is
greater the other.
Rs value
Range
Rs [
]
32
A
320
A
3.2 mA
32 mA
320 mA
2 A
22 k
2.2 k
220
22
2.2
0.22
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