1 Scope
This part of GB/T 22264 is applicable to the following mounted digital display electric measuring instruments measuring electric parameters:
——ammeters and voltmeters;
——wattmeters and varmeters;
——power factor meters and phase meters;
——insulation resistance meters;
——frequency meters.
and multi-function instruments in random combination of above forms; it is also applicable to digital display part of dual analogue-digital display electric measuring instruments.
This part is not applicable to:
——electric measuring instruments only provided with direct acting indicating analogue.
——portable digital display electric measuring instruments.
——the instruments for special purpose specified in national standard (or professional standard).
Dimension requirements of instruments, which are not specified in this part, are detailed in GB/T 1242-2000.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of GB/T 22264. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this part. However parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 1242-2000 Dimensions for Panel Mounted Indicating and Recording Electrical Measuring Instruments (neq IEC 61554:1999)
GB/T 2423.1-2001 Environmental Testing for Electric and Electronic and Electronic Products - Part 1: Test Methods - Tests A: Cold (idt IEC 60068-2-1:1990)
GB/T 2423.2-2001 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Tests B: Dry Heat (idt IEC 60068-2-2:1974)
GB/T 2423.4-2008 Basic Environmental Testing Procedures for Electric and Electronic Products - Test Db: Damp Heat, Cyclic (IEC 60068-2-30:2005, IDT)
GB/T 2829-2002 Sampling Procedures and Tables for Periodic Inspection by Attributes (Apply to Inspection of Stability for Productive Process)
GB 4208-2008 Degrees of Protection Provided by Enclosure (IP Code) (IEC 60529:2001, IDT)
GB 4793.1-2007 Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use - Part 1: General Requirements (IEC 61010-1:2001, IDT)
GB/T 5169.10-2006 Fire Hazard Testing for Electric and Electronic Products - Part 10: Glow/Hot-wire Based Test Methods - Glow-wire Apparatus and Common Test Procedure (IEC 60695-2-10:2000, IDT)
GB/T 7676.1-1998 Direct Acting Indicating Analogue Electrical Measuring Instruments and Their Accessories - Part 1: Definitions and General Requirements Common to All Parts (idt IEC 60051-1:1984)
GB 9254-1998 Information Technology Equipment - Radio Disturbance Characteristics - Limits and Methods of Measurement (idt CISPR 22:1997)
GB/T 15464-1995 General-purpose Specification for the Packaging of Instrumentation Products
GB/T 17626.1-2006 Electromagnetic Compatibility - Testing and Measurement Techniques - Overview of Immunity Tests (IEC 61000-4-1:2000, IDT)
GB/T 17626.2-2006 Electromagnetic Compatibility (EMC-Testing and Measurement Techniques - Electrostatic Discharge Immunity Test (IEC 61000-4-2:2001, IDT)
GB/T 17626.3-2006 Electromagnetic Compatibility - Testing and Measurement Techniques - Radiated Radio-Frequency Electromagnetic Field Immunity Test (IEC 61000-4-3:2002, IDT)
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Categorization, Classification and Conformity of Product
5 Reference Conditions and Intrinsic Error
6 Nominal Range of Use and Variation
7 Requirements
8 Packaging, Storage and Transportation
9 Information, Conventional Marks and Symbols
10 Marks and Symbols at Terminal
11 Inspection Rules
Annex A (Normative) Test Items
Annex B (Normative) Permissible Error and Variation
