Sonel MIC-5010 - Technical Specifications; Basic Data

MIC-5010, MIC-5005 – USER MANUAL
36
11 Technical specifications
11.1 Basic data
 The abbreviation "m.v." used in the specification of basic uncertainty denotes a standard measured
value
AC / DC voltage measurement
Display range
Resolution
Basic uncertainty
0.0 V...29.9 V
0.1 V
(2 % m.v. + 20 digits)
30.0 V...299.9 V
0.1 V
(2 % m.v. + 6 digits)
300 V…600 V
1 V
(2 % m.v. + 2 digits)
 Frequency range: 45...65Hz
Measurement of insulation resistance
Test voltage accuracy (R
obc
[]  1000*U
N
[V]): -0+5% or -0+10% of the set value
Measuring range according to IEC 61557-2: 50 kΩ …15,0 T (I
ISOnom
= 1,2 mA or 3 mA)
DC and increasing voltage measurement (SV) for U
ISO
= 5 kV
Display range
Resolution
Basic uncertainty
000 k...999 k
1 k
 (3 % m.v. + 10 digits)
1.00 M...9.99 M
0.01 M
10.0 M...99.9 M
0.1 M
100 M..999 M
1 M
1.00 G..9.99 G
0.01 G
10.0 G...99.9 G
0.1 G
100 G...999 G
1 G
 (3.5 % m.v. + 10 digits)
1.00 T…9.99 T
0.01 T
 (7.5 % m.v. + 10 digits)
10.0 T...15.0 T
0.1 T
 (10 % m.v. + 10 digits)
For other voltages the measurement uncertainty can be calculated from the following formula:
δ
R
= ±(3 %+(U
ISO
/( U
ISO
-R
zm
·21·10
-12
)-1) ·100 %) ± 10 digits
where:
U
ISO
– voltage at which the measurement is conducted [V]
R
zm
– measured resistance [Ω]
Approximate maximum values of the measured resistance, depending on the test voltage, are
presented in the table below.
Voltage
Test range
250 V
500 G
500 V
1 T
1000 V
2.00 T
2500 V
5.00 T
5000 V
15.0 T
 Note: For insulation resistance below R
ISOmin
there is no accuracy specified because the meter
works with the adjustable current limit in accordance with the following formula: