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Safety Meaning of symbol CAUTION! Please consult the operating instructions before using the device. In these operating instructions, failure to follow or carry out instructions preceded by this symbol may result in personal injury or damage to the device and the installations.
2 REFERENCE CONDITIONS Temperature: 23ºC±2ºC Humidity: 45%RH±5% Position: horizontal±2° Ensure that the pointer is at zero before starting any measurements. Zero adjustment: open the device. Mechanical zero adjustment is carried out by turning the screw on the back of the null meter.
Do not use input A on unprotected intensity transformers. 3-2 AC CURRENT 10mA 30mA 100mA 300mA Scale(indication) ×0.1 ×1 ×1 ×10 ×0.01 ×0.1 ×0.1 Reading coefficient Voltage drop at inputs 750mV 750mV 750mV 750mV 750mV 750mV 100mV Accuracy 2.0% Protection 3A/500V 10A/500V 4 GENERAL CHARACTERISTICS...
5 SUPPLY To order MS301 Delivery: 1 current meter 1 user’s manual 6 MAINTENANCE Only use the specified spare parts for maintenance. The manufacturer shall not be held liable for any incident occurring following repairs carried out by a party other than its after-sales service or approved repairers. 6-1 Fuse change Opening the current meter: Open the device.