Section 2
TM9230A-C1-002 November, 2021
2 November, 2021
2-1
2.0 9230A SERIES PRECISION DC CURRENT SHUNT
SPECIFICATIONS
2.1 9230A Model Series 12 Month Specifications
Tables 2-1 and 2-2
show the specificatons for the 9230A series. For custom models, please consult your
calibration certificate to determine uncertainties and maximum limits.
Model
1
Nominal
Resistance Value
(Ω)
Full Rated Current
(A)
2
Initial Tolerance
3
± µΩ/Ω (ppm)
Stability
4
± µΩ/Ω (ppm)
Time Constant
(Minutes)
5
A
MBIENT
A
IR
22
TO
31
W
W
/C
OOLING
90
TO
125
W
92310
Option
Ambient
Air
9230A-10
1.0
5
10
100
10
3
6
9230A-15
0.5
7.5
15
100
10
3
6
9230A-15R
6
0.1
15
NA
400
10
3
6
9230A-30
0.1
15
30
100
10
3
6
9230A-50
0.05
25
50
100
10
3
6
9230A-100
0.01
50
100
100
10
4
8
9230A-150
0.005
75
150
100
10
4
8
9230A-300
0.001
150
300
100
10
8
16
9230A-500
0.5 m
250
500
100
10
8
16
9230A-1000
0.1 m
500
1000
250
25
15
30
9230A-1500
0.05 m
750
1500
250
25
15
30
9230A-3000
10
µ
1500
3000
500
50
20
45
9230A-5000
5
µ
2500
5000
600
70
20
45
Table 2-1 : 9230A Model Series 12 Month Specifications
Note 1:
Custom values (Customer specified) of nominal resistance from 5 µΩ to 1 Ω are available by special order.
Note 2:
Maximum current for natural air convection use without damage to the unit is the same as the maximum current when used with the
92310 forced convection unit.
Note 3:
Defined as maximum variation of resistance value as initially adjusted at time of sale, temperature 23 ºC ± 2 ºC.
Note 4:
When used as a standard resistor at 1 watt Level only.
Note 5:
Typical specification defined as the time for the resistance value to settle to within 10 parts in 10
6
of the final value for any change in
applied current. The time constant is typically 1 minute for flowing oil.
Note 6:
The 9230A-15R is the direct replacement for the 9230/15 version shunt. The 9230A-30 has the same resistance value as the 9230-15R
and can be used up to 30 A.
Summary of Contents for 9230A Series
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