Chauvin Arnoux C.A 6536, Руководство пользователя

Страница: 26 / 30

26
Quantities of influence Range of influence Quantity influenced
Influence
Typical Maximum
Common mode
rejection in AC
50/60 Hz
0 to 600V
ac
at 200mA
at 20mA
R
50dB 40dB
3.4. INTRINSIC UNCERTAINTY AND OPERATING UNCERTAINTY
The megohmmeters comply with standard IEC-61557, which requires that the operating uncertainty, called B, be less than 30%.
„
In insulation measurements, B = ± ( |A| + 1.15
√
E
1
² + E
2
² + E
3
² )
with A = intrinsic uncertainty
E
1
= influence of the reference position ± 90°.
E
2
= influence of the supply voltage within the limits indicated by the manufacturer.
E
3
= influence of the temperature between 0 and 35°C.
„ In continuity measurement, B = ± ( |A| + 1.15
√
E
1
² + E
2
² + E
3
² )
3.5. POWER SUPPLY
The instrument is powered by six 1.5 V alkaline AA (LR6) batteries.
The voltage range ensuring correct operation is from 6.6 V to 9.6 V.
Life between charges
„
6,000 5-second insulation measurements at a test voltage U
N
= 100V and R = 100 k
Ω
, at the rate of one measurement per
minute.
„
3,000 5-second continuity measurements, at the rate of one measurement per minute.
3.6. ENVIRONMENTAL CONDITIONS
Indoor use.
Range of operation specified
-20 to +55 °C and 20 to 80 %RH
Range of storage (without the batteries) -30 to +80 °C and 10 to 90 %RH without condensation
Altitude
<2000m
Degree of pollution 2
3.7. MECHANICAL CHARACTERISTICS
Dimensions (L x W x H) 211 x 108 x 60mm
Weight
approximately 850g
Inrush protection IP 54 per IEC 60529, not in operation
IK 04 per IEC 50102
Drop test per IEC 61010-1
3.8. COMPLIANCE WITH INTERNATIONAL STANDARDS
The device is compliant per IEC 61010-1 and IEC 61010-2-030, 600V CAT IV.
The device is compliant per IEC 61557, parts 1, 2, 4 and 10.
In insulation measurement (part 2 of the standard), the instrument does not deliver a test voltage between 0 and 20 % of the rated
voltage as required in the standard, but rather ± 0.5 V.
3.9. ELECTROMAGNETIC COMPATIBILITY (CEM)
The instrument is compliant with standard IEC 61326-1.