JJF 1876-2020Calibration Specification for Waveform Recorders (English PDF)

1 Scope (1)

2 Reference documents (1)

3 Overview (1)

4 Measurement characteristics (1)

4.1 DC voltage(1)

4.2 AC voltage(1)

4.3 Time base(1)

4.4 Bandwidth(1)

4.5 Input resistance (1)

4.6 DC gain(2)

4.7 Length of recording time (2)

5 Calibration conditions (2)

5.1 Environmental conditions (2)

5.2 Measurement standards and other equipment (2)

6 Calibration items and calibration methods (2)

6.1 Appearance and working normality inspection (3)

6.2 DC voltage(3)

6.3 AC voltage(4)

6.4 Time base(4)

6.5 Bandwidth(5)

6.6 Input resistance(5)

6.7 DC gain(5)

6.8 Length of recording time(6)

7 Expression of calibration results (6)

8 Recalibration interval (7)

Appendix A Original Record Format (8)

Appendix B: Internal page format of calibration certificate (10)

Appendix C Example of Uncertainty Evaluation (12)

Introduction

This specification is based on JJF 1071-2010 "Rules for the Compilation of National Metrology and Calibration Specifications" and JJF 1059.1-2012 "Evaluation and Expression of Measurement Uncertainty" was compiled:

This specification refers to JJF 1057 "Digital Storage Oscilloscope Calibration Specification", GB/T 15289 "Digital Storage Oscilloscope General Specification for Digital Waveform Recorder" and IEEEStd1057 "IEEE Standard for Digital Waveform Recorder":

This specification is released for the first time:

Waveform recorder calibration specification

1 Scope

This specification applies to voltage measurement types with a voltage range of 5mV~1000V and a frequency range of DC~2MHz Calibration of the waveform recorder:

2 Reference documents this specification refers to the following documents:

JJF 1057 Calibration Specification for Digital Storage Oscilloscope GB/T 15289 General Specification for Digital Storage Oscilloscope IEEEStd1057 Digital Waveform Recorder IEEE Standard (IEEEStandardforDigitizing WaveformRecorders) for dated reference documents, only the dated version applies to this specification; for undated references the latest version (including all amendments) is applicable to this specification:

3 overview

Waveform recorder is a comprehensive instrument that measures voltage and records electrical parameters: Its types can be divided into analog Waveform recorder and digital wave recorder: The analog waveform recorder uses an analog stylus to record measurements on a recording paper:

Measured data: The digital waveform recorder stores the measured waveform data in the recorder:

After recording, the recorded waveform and data can be called out: Waveform recorders are widely used in electricity, electronics, and traffic safety Industry fields such as monitoring and environmental monitoring:

4 Measurement characteristics

4.1 DC voltage

Measuring range: ± (5mV~1000V);

Maximum allowable error: ± (0.25%FS~1%FS):

4.2 AC voltage

Measuring range: 5mV~1000V (peak-peak);

Maximum allowable error: ±(0.5%FS~3%FS):

4.3 Time base

Maximum allowable error: ±1×10-6:

4.4 Bandwidth

Frequency range: <=2MHz (-3dB):

4.5 Input resistance Range: 50ohm~100Mohm;