YOKOGAWA EY200, Руководство пользователя

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3. Specifications
Measuring Range and Accuracy
(at 23±5℃ , RH 75% or less)
Range Measuring Range Accuracy
Earth voltage ˜V * 0 to 199.9 V ±(1.0% rdg +4 dgt)
Earth
Resistance
20Ω 0 to 19.99 Ω ±(2.0% rdg +0.1Ω) ( 0 to 19.99Ω )
±(2.0% rdg +3 dgt) ( 20Ω or more )
(Auxiliary earth resistance 100Ω ±5%)
200Ω 0 to 199.9 Ω
2000Ω 0 to 1999 Ω
* ˜V Range = Earth voltage (Series interference voltage)
EMC Standards
EN 61326-1 Class B, EN 61326-2-2,
EN 55011 Class B Group 1
EMC Regulatory Arrangement in Australia and New Zealand
Korea Electromagnetic Conformity Standard
(
한국 전자파적합성기준
)
RF field strength =
≤
1V/m, total accuracy: specified accuracy
RF field strength = 3V/m, total accuracy: specified accuracy
+5% of range
Safety Standards
EN 61010-1, EN 61010-2-030
Measurement category III (CAT III) 300 V
Indoor use, Altitude 2000 m or less, Pollution degree 2
EN 61010-031
Standards
Compliant with EN 61557-1, EN 61557-5, IEC 60529 (IP54)
Environmental standard
EN 50581
Monitoring and control instruments including industrial
monitoring and control instruments
Measuring Method
Earth voltage measurement*
Mean value
Earth resistance measurement
Constant current inverter
Measuring current: Approx. AC 3mA (at 20Ω range)
Frequency: Approx. 820Hz