This part of GB/T 22264 specifies the terms and definitions,description,classification and compliance,reference conditions and intrinsic errors,nominal range of use and variations,requirements,packaging,storage and transport,information,general markings and symbols,and test rules of fixed digital meters and power factor meters.
This part is applicable to fixed digital display phase meters and power factor meters,and is also applicable to the digital display part of dual analog-digital display phase meters and power factor meters.
This part is not applicable to:
—phase meters and power factor meters only have direct acting analogue indicating;
—portable digital display phase meters and power factor meters;
—special purpose instruments which are covered by their own national standards.
定价: 216元 / 折扣价: 184 元 加购物车
This part of GB/T 22264 specifies the terms and definitions, description, classification and compliance, reference conditions and intrinsic errors, nominal range of use and variations, requirements, packaging, storage and transport, information, general markings and symbols, and test rules of digital display insulation resistance meters.
This part is applicable to fixed digital insulation resistance meters, and is also applicable to the digital display part of dual analogue-digital display insulation resistance meters.
定价: 216元 / 折扣价: 184 元 加购物车
This part of GB/T 22264 specifies the terms and definitions,description,classification and compliance,reference conditions and intrinsic errors,nominal range of use and variations,requirements,packaging,storage and transport,information,general markings and symbols,and test rules of fixed digital display multifunction instruments
定价: 192元 / 折扣价: 164 元 加购物车
This part is applicable to fixed digital ammeter and voltmeter, and also applicable to the digital display part of dual analogue-digital display ammeters and voltmeters.
This part is not applicable to:
—direct acting indicating analogue ammeters and voltmeters;
—portable digital display ammeters and voltmeters;
—special purpose instruments which are covered by their own national standards.
定价: 216元 / 折扣价: 184 元 加购物车
This part of GB/T 22264 specifies general test conditions and a series test methods for Intrinsic error tests, variation tests, electrical requirement tests, mechanical requirement tests, climate influence tests, electrical safety requirement tests, electromagnetic compatibility tests and mean time between failures test etc.
This part is applicable to the following fixed digital electric measuring instruments measuring electric parameters:
—ammeters and voltmeters;
—wattmeters and varmeters;
—frequency meters;
—power factor meters and phase meters;
—insulation resistance meters.
And multi-function instruments in combination of above any forms; it is also applicable to digital display part of dual analogue-digital display electric measuring instruments.
定价: 504元 / 折扣价: 429 元 加购物车