From the date of implementation of this standard, ZB J42 017-88 will be invalid. This standard has made some additions and deletions in Chapter 3 and 4.1.3, 4.6, 4.7, 4.11, 4.12, etc., and has made some modifications to "Marking, Packaging and Others" according to the requirements of GB 1.3-87. This standard specifies the product model, technical requirements, marking, packaging and other aspects of the digital display of induction synchronizers. This standard is applicable to instruments that use rotary and linear induction synchronizers as detection parts and use digital automatic display displacement. JB/T 8375-1996 Technical conditions for digital display meters of induction synchronizers JB/T8375-1996 Standard download decompression password: www.bzxz.net

JB/T8375-1996
Technical Requirements" is invalid.
From the date of implementation of this standard, ZBJ4201788 "Digital Display Meters for Induction Synchronizers" has made some additions and deletions in Chapter 3 and 4.1.3.4.6, 4.7, 4.11, 4.12, etc., and according to the requirements of GB1.3--87 "Standardization Work Guidelines for the Preparation of Product Standards", some modifications have been made to "Marking, Packaging and Others". This standard was proposed and managed by the Guangzhou Machine Tool Research Institute of the Ministry of Machinery Industry. The drafting unit of this standard: Guangzhou Machine Tool Research Institute of the Ministry of Machinery Industry. The main drafter of this standard: Chen Yu.
1. Scope
Standard of the Mechanical Industry of the People's Republic of China
Technical Requirements
Digital Display of Induction Synchronizer:
This standard specifies the product model, technical requirements, marking, packaging and other aspects of digital display of induction synchronizer. JB/T 8375-1996
Replaces ZBJ42017--88
This standard applies to instruments that automatically display displacement using rotary and linear induction synchronizers as detection elements. 2 Reference Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T191-90 Packaging, storage and transportation pictorial symbols
ZBY003--84 General technical conditions for instrument packaging 3 Product model
The product model consists of four parts, as follows: The fourth part, resolution, is represented by two digits. The third part, the coordinate number is represented by a number
-The second part, the Chinese phonetic letter represents the circuit principle or characteristics. The first part, the Chinese phonetic letter S represents the induction synchronizer number. The second part of the Chinese phonetic letter is respectively It is expressed as follows: B-Programmable type
D-Constant scale excitation type
F-Amplitude detection type
G-High speed tracking type
J-Absolute coordinate type
T-Pulse width modulation type
W-Microcomputer type
X-Phase detection type
The third part of the coordinate number is expressed as follows: "0" is the coordinate number of the rotary induction synchronizer digital display; "1, 2, ..., 9" is the coordinate number of the linear induction synchronizer digital display. The fourth part of the resolution is expressed as follows:
The resolution is expressed in two digits, the resolution unit of the rotary induction synchronizer digital display is "\", and the resolution unit of the linear induction synchronizer digital display is "um".
Approved by the Ministry of Machinery Industry of the People's Republic of China on April 22, 1996 624
Implemented on July 1, 1996
4 Technical requirements
4.1 Working conditions
4.1.1 Ambient temperature: 0~45℃
JB/T 8375-1996
4.1.2 Relative humidity: not more than 90% (ambient temperature is 25℃). 4.1.3 Power supply: 220±1V, power frequency 50Hz±1Hz. 4.1.4 No obvious corrosive gas around.
4.2 Operating functions
The operating functions of the digital display shall be specified by the enterprise in the technical conditions of the product. 4.3 Resolution of digital display
The resolution of the digital display refers to the minimum digital display value of the digital display. Its nominal value can be 1, 2 or 5. 4.4 Accuracy
The accuracy of the digital display refers to the error measured after the digital display is formed into a system using a metering induction synchronizer. The accuracy can be expressed as the peak-to-peak value of the error, or half of this value with a "±" sign. The nominal value of the accuracy error is ±1, ±2 or ±5 minimum digital display values. 4.5 Repeatability error
The repeatability error of the digital display is not allowed to exceed 1/2 of the accuracy. 4.6 Stability
The digital display is connected to the induction synchronizer. After 30 minutes to 6 hours of power on, the digital drift is not allowed to exceed one resolution digit. 4.7 Maximum static displacement measurement speedbZxz.net
After the digital display and the inductive synchronizer form a position measurement system, the maximum displacement measurement speed allowed by the digital display, the linear digital display is divided into five gears of not less than 6, 12, 24, 50, 100m/min, and the rotary digital display is divided into five gears of not less than 5, 10, 20, 40, 80r/min. 4.8 Maximum dynamic displacement measurement speed and maximum acceleration (only for high-speed tracking digital displays) After the digital display and the inductive synchronizer form a position measurement system, the maximum displacement measurement speed allowed when the difference between the displacement value measured by the digital display and the actual displacement value under dynamic conditions is not greater than a certain specified value. The maximum acceleration refers to the acceleration value of the inductive synchronizer movement allowed when the difference between the displacement value measured by the digital display and the actual displacement value is not greater than a certain specified value after the digital display and the inductive synchronizer form a position measurement system.
4.9 Safety performance
4.9.1 The maximum allowable AC leakage current is not greater than 3.5mA. 4.9.2 The minimum insulation resistance allowed is not less than 5MQ. 4.9.3 The withstand voltage test is ac1500V or dc2100V for 1min, and no breakdown is allowed. 4.10 Anti-interference performance
The digital display should have a certain anti-interference performance and be suitable for use in the workshop working environment. After interference, the last digit is allowed to add or subtract one digit and can be clearly distinguished.
4.11 Reliability
The reliability of the digital display is measured by the mean trouble-free working time MTBF. The MTBF shall not be less than 5000h. 4.12 Unpacking pass rate
The unpacking pass rate is not less than 95%.
5 Marking, packaging and others
5.1 Marking
5.1.1 Product marking
The design of all signs and logos should be beautiful, the layout should be reasonable, and the handwriting and symbols should be clear and correct. The marking content shall at least include: a) product model;
product name;
manufacturer name:
manufacturer address;
power supply parameters (voltage, frequency);
JB/T8375-—1996
function markings such as switches, buttons, and adjustment knobs; manufacturing date, factory number.
packaging marking
The packaging box surface shall have shockproof and moisture-proof markings and shall comply with the relevant provisions of GB191. The packaging box marking shall comply with the relevant provisions of ZBY003. 5. 1, 2. 2
5.2 Packaging
5.2.1 The product packaging must be firm, reliable, and not susceptible to moisture to ensure that the product is not damaged during storage and transportation. 5.2.2 The accompanying documents shall comply with the relevant provisions of ZBY003. 5.3 Transportation
During transportation, the packaged products should be kept away from collision and knocking, and should not be placed together with corrosive items. 5.4 Storage
Under normal temperature conditions, the products should be stored in a dry, ventilated warehouse without corrosive gases. 5.5 Warranty Period
If the user complies with the transportation, storage and use regulations stipulated in this standard and the product manual, within 18 months from the date of shipment from the manufacturer, if the digital display is damaged or fails to work properly due to poor quality, the manufacturer shall repair or replace components or digital displays for the user free of charge.
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