This standard specifies the technical requirements, test methods and inspection rules of the paddle-type level gauge. This standard is applicable to level gauges that control the level of granular materials with a density greater than 0.3×1000kg/m3 and a maximum particle size less than 20mm. JB/T 8352-1996 Technical requirements for paddle-type level gauges JB/T8352-1996 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T 8352-96
Rotary Paddle Level Device
199604-11 Issued
Technical Conditions
1996-1-05 Implementation
Ministry of Machinery Industry of the People's Republic of China
IB/T8352-96
This standard is formulated based on the existing level of rotary paddle level device. International and foreign companies have not formulated similar product standards. This standard is effective from October 1, 199G. This standard is proposed and managed by the National Foundry Machinery Standardization Technical Committee. The drafting unit of the technical standard is Jinan Screening and Forging Machinery Research Institute of the Ministry of Machinery Industry. The main drafters of this standard are Liu Tongjue and Zhu Fuping. This standard was first issued on April 11, 1996. 1. Standard of the Machinery Industry of the People's Republic of China. Technical Specifications of Rotary Paddle Level Devices. JB/T8352-96. This standard specifies the technical requirements, test methods and inspection and measurement of rotary paddle level devices (hereinafter referred to as level devices). The standard is applicable to level devices for level control of materials with a density greater than 0.s×1ckg/mL and a maximum particle size of less than 20mm. 3. Referenced Standards. The following standards contain provisions that constitute the text of this standard by being referenced in this standard. When this standard is published, the versions shown are valid. All standards will be revised and the use of this standard is subject to the provisions of this standard. The possibility of using the latest version of the following standards should be explored. CB19J-90
Packing, storage and transportation, national system marking
GB/T5226.1-1006
Industrial machinery electrical equipment, Part 1, General connection technical conditions ZHYc03-84
3 Technical requirements
General technical conditions for packaging of receivers and instruments
3.1 The level meter shall be manufactured according to the approved samples and technical documents in the prescribed procedures. 3.2 The electrical system of the level meter shall comply with the relevant provisions of GB/T5226.1. 3.3 The contact capacity of the level meter box shall be able to meet the use requirements. 3.4 The rise from the blade to the effective height of the blade shall not exceed 9 before the closing or after the resistance is stopped, and the material inspection shall be separated from the If the value does not exceed 0.5, the level device shall issue a control alarm signal. 3.5 The environmental conditions have a great impact on the performance of the level device. The environmental conditions that are known to affect its performance at least include dust, sea level, humidity, vibration, impact and other factors. The parties to the agreement shall make a decision on this. 3.6 Under the agreed environmental conditions, the level device shall not fail to send out effective signals or send out wrong signals. 3. The level device shall have mechanical overload protection and automatic power-off protection functions. 3.8 The level device shall be dust-proof and airtight, and have certain resistance to vibration, impact and other media. 3.9 The level device shall not be damaged, deformed, loose, or have loose wires. 3.0 The blade length adjustment mechanism shall be quick and reliable. 3.11 The level meter shall be subjected to 5000 times of screening test before entering the factory. The test results shall comply with the provisions of this standard and shall be noted in the certificate of conformity.
3. The surface of the E2 level meter shall not have protrusions, concavities, roughness and other teeth not specified in the drawing. 3.13 The technical documents of the level meter shall include the instruction manual, the certificate of conformity and the packing list. 4 Test method
This test method is limited to the determination of 3.4, 3.6 and 3.11. 4.1 Simulation test bZxz.net
Approved by the Machinery Industry Association on April 11, 1996
Implemented on October 1, 1996
4.1.1 Test principle
Test principle Figure 1.
I Science and Technology Express Market
Recording effect device
4.1.2 Test process
Han Baohuidong
Pad device
M/T52-..96
Close the single quantity control signal
Recording device
When the material level in the silo reaches the blade or the material level leaves the blade, the material level status control device and the level meter control signal recording device measure the material and the material level on the plate separately, and the 3.4.3.6.3.11 can be measured from the door. 4.1.3 The measurement of 3.d should be entered into the pen three times. 4.1.4 The number of measurements for 3.6 should not be less than 10 times. 4.1.5 The test conditions (including material quality, satisfaction, degree, and minimum intake) should be within the use range specified in the user manual of the material level meter.
4.1.6 During the test of 3.11, if the material level meter does not meet the requirements of this standard, it should be screened out or tested again according to the requirements of 3.1 after repeated testing.
4.2 If the requirements of 3.4.3.5 are actually used in the agreement, The test is carried out on site, and the trial order is drawn up according to the actual situation. Inspection specifications
5.1 Each level meter shall be qualified in all items specified in this standard. 5.2 When the national quality inspection agency conducts inspection, it shall conduct sampling inspection on 1 level meter batch, but not less than one level meter. 6 Packaging, marking, transportation
6.1 The color of the level meter shall comply with 2HY003. 6.2 The packaging, storage and transportation graphic markings shall comply with the provisions of GB191. 6.3 The transportation of the level meter shall comply with the current regulations on railway, road and water transportation.
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