25
ELECTRICAL MEASUREMENT SPECIFICATIONS
The accuracy specification is defined as ±(% rdigit counts) at 23 °C ±5 °C,
≤
80 % RH. Between -10 °C and 18 °C and between 28 °C and 40 °C, accuracy specifications
may degrade by 0,1 x (accuracy specification) per °C. The following tables can be used for
the determination of maximum or minimum display values considering maximum instrument
operating uncertainty per EN61557-1, 5.2.4.
Insulation Resistance (R
ISO
)
250 V
500 V
1000 V
Limit Value
Maximum
Display Value
Limit Value
Maximum
Display Value
Limit Value
Maximum
Display Value
1
1.3
1
1.3
1
1.3
2
2.4
2
2.4
2
2.4
3
3.5
3
3.5
3
3.5
4
4.6
4
4.6
4
4.6
5
5.7
5
5.7
5
5.7
6
6.8
6
6.8
6
6.8
7
7.9
7
7.9
7
7.9
8
9.0
8
9.0
8
9.0
9
10.1
9
10.1
9
10.1
10
11.2
10
11.2
10
11.2
20
22.2
20
22.2
20
22.2
30
33.2
30
33.2
30
33.2
40
44.2
40
44.2
40
44.2
50
55.2
50
55.2
50
55.2
60
66.2
60
66.2
60
66.2
70
77.2
70
77.2
70
77.2
80
88.2
80
88.2
80
88.2
90
99.2
90
99.2
90
99.2
100
110.2
100
110.2
100
110.2
200
220.2
200
220.2
200
220.2
300
347
300
345
400
462
400
460
500
577
500
575
600
690
700
805
800
920
900
1035
1000
1150
