Fluke 5725A User Manual
Page 34
5725A
Instruction Manual
1-18
Table 1-11. Resistance Secondary Performance Specifications and Operating Characteristics
Nominal
Value
Stability
±
1 °C
[Note 1]
Temperature
Coefficient Adder
[Note 2]
Full Spec
Load Range
Maximum
Peak
Current
Maximum
Difference
of
Characterized
Two-Wire Adder
active
compensation
[Note 4]
10°-40 °C
0°-10 °C
and
[Note 3]
to Nominal
Value
Lead Resistance
24 Hours
40°-50 °C
0.1
Ω
1
Ω
Ω
±
ppm
±
ppm/°C
mA
mA
±
ppm
±
m
Ω
0
00
8 - 500
500
2 +
Im
4 V
µ
4 +
Im
4 V
µ
1
32
4
5
00
8 - 100
700
500
2 +
Im
4 V
µ
4 +
Im
4 V
µ
1.9
25
6
7
00
8 - 100
500
500
2 +
Im
4 V
µ
4 +
Im
4 V
µ
10
5
2
3
00
8 - 11
220
300
2 +
Im
4 V
µ
4 +
Im
4 V
µ
19
4
2
3
00
8 - 11
160
300
2 +
Im
4 V
µ
4 +
Im
4 V
µ
100
2
2
3
00
8 - 11
70
150
2 +
Im
4 V
µ
4 +
Im
4 V
µ
190
2
2
3
00
8 - 11
50
150
2 +
Im
4 V
µ
4 +
Im
4 V
µ
1 k
2
2
3
00
1 - 2
22
150
10
15
1.9 k
2
2
3
00
1 - 1.5
16
150
10
15
10 k
2
2
3
100 - 500
µ
A
7
150
50
60
19 k
2
2
3
0
50 - 250
µ
A
5
150
100
120
100 k
2
2
3
10 - 100
µ
A
1
150
I
m
= Current
produced by
Ohmmeter
190 k
2
2
3
00
5 - 50
µ
A
500
µ
A
150
1 M
2.5
2.5
6
00
5 - 20
µ
A
100
µ
A
200
1.9 M
3.5
3
10
0
2.5 - 10
µ
A
50
µ
A
200
10 M
10
5
20
0
0.5 - 2
µ
A
10
µ
A
300
19 M
20
8
40
0.25 - 1
µ
A
5
µ
A
300
100 M
50
12
100
0
50 - 200 nA
1
µ
A
500
Notes:
1. Stability specifications are included in the Absolute Uncertainty values in the primary specification tables.
2. Temperature coefficient is an adder to uncertainty specifications that does not apply unless operated
more than 5 °C from calibration temperature, or calibrated outside the range 19 °C to 24 °C. Two
examples:
•
Calibrate at 20 °C: Temperature coefficient adder is not required unless operated below 15 °C or
above 25 °C.
•
Calibrate at 26 °C: Add 2 °C temperature coefficient adder. Additional temperature coefficient adder is
not required unless operated below 21 °C or above 31 °C.
3. Refer to current derating factors table for loads outside of this range.
4. Active two-wire compensation may be selected for values less than 100 k
Ω
, with either the front panel or
the meter input terminals as reference plane. Active compensation is limited to 11 mA load, and to 2 V
burden. Two-wire compensation can be used only with
Ω
-meters that source continuous (not pulsed) dc
current.