Standard No.:	GB/T 11798.8-2001
Chinese Name:	机动车安全检测设备 检定技术条件 第8部分：摩托车轮偏检测仪检定技术条件
English Name:	Motor vehicle safety testing equipment-Technical requirements of verification-Part 8:Technical requirements of verification for motorcycle wheel deviation tester
Professional Classification:	R82 Vehicle management
Professional Classification:	GB National Standard
ICS Classification:	43.020 43.180
Issued by:
Issued on:	2001-04-29
Implemented on:	2001-12-01
Status:
Language:	English
File Format:	PDF
Word Count:	3000 words
Price(USD):	90 (USD)
Delivery:	via email in 1-3 business day

1 Scope
This standard specifies verification technical requirements and verification methods for motorcycle wheel deviation tester (hereinafter referred to as wheel deviation tester).
This standard is applicable to the verification of wheel deviation tester for the safety detection of motorcycle..
2 Normative References
The provisions of the following standard, through reference in this standard, constitute the provisions of this standard. When this standard is published, all the shown editions are valid. All standards are subject to revision, and parties to agreements based on this code are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.
GB/T 6587.7-1986 Basic safety tests for electronic measuring instruments
3 Technical Requirements
3.1 Appearance and property
3.1.1 Defined nameplate shall be provided with for wheel deviation tester and models, manufacturer's name, delivery date, delivery number and rated load shall be marked on the nameplate.
3.1.2 Words or symbols shall be provided with for various controls such as switch, button, socket and wiring terminal and shall meet the requirements of relevant standards. The controls shall be flexible and reliable free from looseness or binding.
3.1.3 Dial of pointer display instrument shall be clear and the pointer shall be not crooked in stable rotation free from run-out or binding etc.; digital display instrument shall be free from defects with influence in readout; the digital display shall be stable within 5s; and retention time of the indicating value shall be no less than 8s.
3.1.4 The movement of sliding plates shall be stable and clamping of champing devices shall be reliable.
3.2 Security of electrical system
Protective earth terminal shall be provided with for wheel deviation tester and defined grounding marks shall be provided with near this terminal. The protective grounding terminal shall be reliably connected with protective grounding point through special flavovirens wire.
3.2.2 As for electrical system of the wheel deviation tester, its security shall meet the requirements that rated operational voltage not exceed Category I safety instrument of 500V in GB/T 6587.7-1986 and the insulation resistance value shall be no less than 5MΩ.
3.3 Run-out volume of special calibration core rod
Radial circular run-out volume of special calibration core rod shall be no greater than 0.3mm.
3.4 Zero error and zero point drift
3.4.1 Zero error: shall not exceed ±0.2mm.
3.4.2 Zero point drift: shall be no greater than 0.2mm within 30min.
3.5 Indication error: shall not exceed ±0.2mm.
As for wheel deviation testers on motorcycle detection line equipped with printing device or computer control, the displayed values and print values of the instrument or displayed value of the computer on the line all shall meet this provision.
3.6 Alarm point determination error: shall not exceed ±0.2 mm.
3.7 Repeatability error: shall be no greater than 0.1mm.
3.8 Movement force of sliding plates
The movement force of sliding plates moving from zero position to 0.1 mm shall be no greater than 10N.