Appendix; Table Of Loop Impedance Values; Table Of Earthing Resistance Values - Gossen MetraWatt ProFiTEST C-GB int. Operating Instructions Manual

11

Appendix

Tables for determining maximum and minimum display values under consideration of the device's maximum measuring error.
These tables do not apply for the measurement with 15 mA test current!

11.1 Table of Loop Impedance Values


Z
Loop
Max.
Limit Value
Display Value
0.25 0.18
0.30 0.22
0.35 0.27
0.40 0.31
0.45 0.36
0.50 0.40
0.60 0.50
0.70 0.59
0.80 0.68
0.90 0.77
1.00 0.86
1.50 1.31
2.00 1.77
2.50 2.22
3.00 2.68
3.50 3.13
4.00 3.59
4.50 4.04
5.00 4.50
6.00 5.40
7.00 6.31
8.00 7.22
9.00 8.13
10.00 9.04
15.00 13.1
20.00 17.7
25.00 22.2
30.00 26.8
34

11.2 Table of Earthing Resistance Values

Max.
Limit Value Limit Value
Display Value
0.25 0.18 10.0
0.30 0.22 15.0
0.35 0.27 20.0
0.40 0.31 25.0
0.45 0.36 30.0
0.50 0.40 35.0
0.60 0.50 40.0
0.70 0.59 45.0
0.80 0.68 50.0
0.90 0.77 60.0
1.00 0.86 70.0
1.50 1.31 80.0
2.00 1.77 90.0
2.50 2.22 100
3.00 2.68 150
3.50 3.13 200
4.00 3.59 250
4.50 4.04 300
5.00 4.50 350
6.00 5.40 400
7.00 6.31 450
8.00 7.22 500
9.00 8.13 600
10.00 9.04 700
800
900

R
E
Max. Max.
Limit Value
Display Value Display Value
9.04 1.00 k 925
13.8 1.50 k 1.38 k
18.4 2.00 k 1.84 k
23.1 2.50 k 2.31 k
27.7 3.00 k 2.77 k
32.3 3.50 k 3.23 k
36.9 4.00 k 3.69 k
41.6 4.50 k 4.16 k
46.2 5.00 k 4.62 k
55.5 6.00 k 5.55 k
64.7 7.00 k 6.47 k
74.0 8.00 k 7.40 k
83.2 9.00 k 8.32 k
92.5 9.99 k 9.25 k
138
184
231
277
323
369
416
462
555
647
740
832
GMC-I Messtechnik GmbH