1 Scope
This program of pattern evaluation is applicable to the pattern evaluation of sulfur hydrogen gas analyzers (which consist of sulfur hydrogen gas detection and alarm instrument and sulfur hydrogen gas detector, hereinafter referred to as "analyzer").
2 Normative References
JJG 695-2003 "Verification Regulation of Sulfur Hydrogen Gas Detectors"
GB/T 11606-2007 "Methods of Environmental Test for Analytical Instruments"
GB 12358-2006 "Gas Monitors and Alarms for Workplace-General Technical Requirements"
GB/T 17626.2-2006 "Electromagnetic Compatibility - Testing and Measurement Techniques-Electrostatic Discharge Immunity Test"
GB/T 17626.3-2006 "Electromagnetic Compatibility - Testing and Measurement Techniques-Radiated Radio-frequency Electromagnetic Field Immunity Test"
GB/T 17626.4-2008 "Electromagnetic Compatibility - Testing and Measurement Techniques-Electrical Fast Transient/Burst Immunity Test"
The above normative documents contain provisions which, through reference in this program, constitute provisions of this program. For dated references, subsequent amendments to (excluding any correction), or revisions of, any of these publications do not apply. However, parties to agreements based on this program are encouraged to investigate the possibility of applying the latest editions of the normative documents. For undated references, the latest edition of the normative document (including all corrections) referred to applies.
3 General
The analyzer is tested mainly by the electrochemical and optical profile type. The analyzer mainly consists of transducer, amplifying circuit and display. It may be classified into non-continuous measuring analyzer and continuous measuring analyzer according to operating conditions, or diffusion type and inhalation type according to sampling type or portable type and fixed type according to the usage mode.
4 Technical Data and Experimental Prototype Submitted by Application Unit
4.1 Technical Data
a) Prototype photo;
b) Product standard (including inspection method);
c) General assembly drawing, circuit diagram and drawing of vital parts;
d) Instruction for use;
e) Test report by manufacturer or technical organization;
f) Explosion proof certificate shall be provided where the products are indicated with the explosion proof functions.
4.2 Experimental Prototype
Introduction I
1 Scope
2 Normative References
3 General
4 Technical Data and Experimental Prototype Submitted by Application Unit
4.1 Technical Data
4.2 Experimental Prototype
5 Legal Management Requirements
5.1 Requirements for Measurement Unit
5.2 Requirements for Accuracy (Maximum Permissible Error)
5.3 Requirements for Legal Measurement Marking and Measuring Devices Identification
5.4 Requirements for Installation Marking
5.5 Other Requirements
6 Measuring Requirements
6.1 Indication Error
6.2 Repeatability
6.3 Alarm Setting Error
6.4 Response Time
6.5 Drift
7 General Technical Requirements
7.1 Appearance
7.2 Functions
7.3 Long Term Stability
7.4 Adaptability of Supply Voltage
7.5 Requirements for Secure Environment
7.6 Requirements for Climatic Environment
7.7 Requirements for Mechanical Environment
7.8 Requirements for Electromagnetic Compatibility
8 List of Pattern Evaluation Items
9 Test Methods and Conditions for Test Items
9.1 Measuring Requirements
9.2 General Technical Requirements
10 Judgment of Pattern Evaluation Result
11 Original Records Form for Pattern Evaluation
Appendix A Original Records Form for Pattern Evaluation of Sulfur Hydrogen Gas Analyzers
