Electromagnetic Compatibility; Mechanical Protections; Variations In The Domain Of Use; Inherent And Operating Accuracy - AEMC 6550 User Manual

7.6.1 Electromagnetic Compatibility

Emissions and immunity in an industrial environment per IEC-61326-1.

7.6.2 Mechanical Protections

IP 65 according to IEC-60529 with the housing closed and IP 54 with the housing open.
IK 04 according to IEC-50102.

7.7 Variations in the Domain of Use

Influence quantity
Battery voltage
Temperature
Humidity
Frequency
AC voltage superimposed
on test voltage
(1): The DAR, PI and DD terms and the capacitance and leakage current measurements are included in the quantity "MW".

7.8 Inherent and Operating Accuracy

The Megohmmeter Models 6550 and 6555 comply with standard IEC-61557, which requires that the operating
accuracy, called B, be less than 30%.
In insulation measurements, B = ± ( |A| + 1,15 √ E1² + E2² + E3² )
with A = inherent accuracy
E1 = influence of the reference position ±90°
E2 = influence of the supply voltage within the limits indicated by the manufacturer
E3 = influence of the temperature between 0° and 35°C
Specifications are subject to change without notice.
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Range of influence Quantity influenced
9 to 12V
-10 to +55°C
U >7.5kV and R < 10TW
10 to 75% RH
with t ≤ 35°C
U > 7.5 kV and 3TW < R < 10TW
15 to 500Hz
0 to 20%Vn
www.
(1)
V
MW
V
MW - GW
V
MW (10kW to 40GW)
MW (40GW to 10TW)
V
MW
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Influence
Typical Maximum
< 1ct
< 1ct
±0.15%/10°C ±(0,3%/10°C + 1ct)
±0.2%/10°C ±(1%/10°C + 2cts)
±1.5%/10°C ±(3%/10°C + 2cts)
±0.2% ±(1% + 2cts)
±0.2% ±(1% + 5cts)
±0.3% ±(15% + 5cts)
±(15% + 5cts) ±(30% + 5cts)
±3% ±(0.5% + 1ct)
±0.1%/%Vn ±(0.5%/%Vn + 5cts)
Megohmmeter Models 6550/6555
1.877.766.5412
2cts
3cts