JIS-B-7606-1997-ENG.pdf
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1、STD-JIS B 7bOb-ENGL 1997 D Li933608 0548079 045 m J IS JIS B 7 6 0 6 1 9 9 7 JAPANESE I N DU STR IAL STANDARD Translated and Published by Japanese Standards Association Belt weighers ICs 53: 040.10 Descriptors : belt conveyors, packages, FIBC, velocity measurement, volume measure- Reference number :
2、 JIS B 7606 : 1997 (E) ment, instrument scales 11 s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:58:51 MDTNo reproduction or networking permitted without license from IHS -,-,- B 7606
3、 : 1997 Foreword This translation has been made based on the original Japanese Industrial Standard revised by the Minister of International Trade and Industry through deliberations at Japanese Industrial Standards Committee in accordance with the Industrial Standardization Law. Consequently, JIS B 7
4、606 : 1991 (former edition) is replaced with this Standard. JIS B 7606 : 1997 contains Annex as under : Annex Test chains. Date of Establishment: 1991-03-01 ,Date of Revision: 1997-03-20 Date of Public Notice in Oficial Gazette: 1997-03-21 Investigated by: Japanese Industrial Standards Committee Div
5、isional Council on Precision Machinery JIS B 7606 :1997, First English edition published in 1997-11 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107 JAPAN c In the event of any doubts arising as to the contents, the original JIS is to be the final au
6、thority. 8 JSA 1997 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan Copyright Jap
7、anese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:58:51 MDTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS B 7606 : 1997 Belt weighers 1 Scope Th
8、is Japanese Industrial Standard specifies the belt weighers with a maximum instantaneous load of not less than 15 kg which detect electrically the mass of various kinds of bulk materials and products being transported continu- ously by a belt conveyor and the belt speed and measure the transported q
9、uantity on the basis of both values. Belt weighers attached with controller which supply a fixed quantity, are excluded. Remarks : The following Standards are normative references to this Standard : JIS Z 8103 Glossary of terms used in instrumentation JIS Z 8306 General rules for scale of industrial
10、 instruments 2 Definitions For the purposes of this Standard, the definitions given in JIS Z 8103 and the following definitions apply : (1) measuring roller A roller mounted in contact with the belt for transmitting the mass of measured material to the load detector. (2) load receiving stand The fra
11、me which attaches the measuring roller. (3) measuring capacity The mass of measured material per unit hour which can be measured and transported satisfying the performance. The upper limit is called the maximum measuring capacity and the lower limit is done so the minimum measuring capacity. (4) mea
12、suring range The range of use of the belt weighers indicated by the maximum measuring capacity and the minimum measuring capacity. (5) working length The part of belt and its effective length on which the mate- rial to be measured equivalent to the mass to be transmitted to the load detec- tor is lo
13、aded, The effective length shall be as follows according to the number of measur- ing rollers: (a) case of single roller 1 of the sum of the distances between the axis of measuring roller and the axes of carrying rollers adjacent to the both ends of it. (b) case of plural rollers The length oflthe d
14、istance between the axes of measuring rollers at both ends to which 2 of the sum of the distances between the axes of these measuring rollers and the axes of the carrier rollers adjacent thereto is added. (6) instantaneous load The material being measured which lies on the working length instantaneo
15、usly during the measurement and transportation. The ma- terial being measured at the time of the maximum measuring capacity is called the maximum instantaneous load. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie No
16、t for Resale, 03/15/2007 22:58:51 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS B 7bOb-ENGL 1997 m Li933b08 0548082 b3T Grade Grade R0.5 2 B 7606 : 1997 Tolerance( l) 10.5 % of transported mass (7) speed detecting device A device which detects the transported quan
17、tity on a belt or the transporting speed. _ _ _ _ _ _ Grade R2.0 Grade F0.5 12.0 % of transported mass 10.5 % of reference value(2) at the maximum measuring capacity (8) integrating indication device A device which indicates the mass trans- ported by belt conveyor by integrating. Grade F1.O Grade F2
18、.0 (9) test chain An instrument used in testing for the error of integrated value to which rotary weights are connected in a chain link form to have the specific mass per unit length. 11.0 % of reference value(2) at the maximum measuring capacity 12.0 % of reference valueP) at the maximum measuring
19、capacity 3 Classification Belt weighers shall be classified according to the structure into the following two types. (1) Integrated type Belt weighers with integrated belt conveyor, load detecting device, and speed detecting device. (2) Attached type Belt weighers for which the load detecting device
20、 and speed detecting device are attached to the belt conveyor installed on site. 4 Grade Belt weighers shall, according to the performance, be divided into six grades of grade R0.5, grade R1.O, grade R2.0, grade F0.5, grade F1.O and grade F2.0. 5 Performance 5.1 Measuring range The measuring range s
21、hall be according to the type, as follows : (1) Integrated type 20 % to 100 % of the maximum measuring capacity. (2) Attached type 35 % to 100 % of the maximum measuring capacity. 5.2 Error of the integrated value The error of the integrated value shall, in each grade, not exceed the value shown in
22、Table 1. Table 1 Tolerance on the error of integrated values I Grade R1.O I 11.0 % of transported mass I Notes (l) The tolerance shall be the value nearest the calculated value and the integer multiple of the scale interval of integrating indication device. (2) The mass of the material to be measure
23、d transported during the same time at the maximum measuring capacity and obtained by the following formula : Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:58:51 MDTNo reproduction or n
24、etworking permitted without license from IHS -,-,- STD-JIS B 7bOb-ENGL 1997 4933b08 0548083 57b Grade Grade R0.5 3 B 7606 : 1997 Tolerance() Integrated type Attached type 10.05 % of reference value(2) at the maximum measuring capacity 10.075 % of reference value(2) at the maximum measuring capacity
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