JIS-Z-8204-1983-R2005-ENG.pdf
《JIS-Z-8204-1983-R2005-ENG.pdf》由会员分享,可在线阅读,更多相关《JIS-Z-8204-1983-R2005-ENG.pdf(64页珍藏版)》请在三一文库上搜索。
1、- 7 - -. Instantaneous flow rate Position or length E Detector F Ratio G Glass Manual H I Indicating Automatic scan J K Operating station Time Level Moisture or humidity Optional choice ( 2, L M N Optional choice ( 2 ) Limit orifice Optional choice ( 2, O Pressure or vacuum Sampling point or measuri
2、ng point I P Quality( ) Example : Com- position, concentration, conductivity Q Integrating Integrating Recording Radiation Speed, number of revolutions, frequency R S S w it c hin g Transmitting Temperature Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS E
3、mployees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 10:43:04 MDTNo reproduction or networking permitted without license from IHS -,-,- Letter 2- symbol Variable symbol .U I Multivariable (3) Variable modifier Functional symbol symbol Multifunction instrument Viscosity Mass or force (1)
4、 Unclassified variables ( 4 , - v Controlling element of valve and the like . Protecting tube Other functions W Y - Z X Computing element, transducer, relay Emergency or safety acting Optional choice (2) (2) Where the letter symbole to be-used by users optional choice have . not been allocated in Ta
5、ble 1 to the variables, and the variables are used repeatedly in the equipment, .they may be used provided that they are suitably specified on the variables by the user, ( 3) . The letter symbol U may be used with representing respective variable symbols where multivariables are fed into a single un
6、it. ( 4 The letter symbol X shall be used as the variable classified into none in the cange limitted to the equipment and the content shall be described clearly, as required For example, ITV and the like. The items described by letters of round Gothic type in the column of functional symbol shall be
7、 used exclusively as the letters of detail symbol. - Remark: 42.2 Variable Symbols The variable symbol shall be letter symbols indicating the measuring variable and actuating variable, and expressed by capital letters. - .i,=.*,% - - Copyright Japanese Standards Association Provided by IHS under lic
8、ense with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 10:43:04 MDTNo reproduction or networking permitted without license from IHS -,-,- 6 Z 8204-1983 4.2.3 Variable Modifier Symbols The variable modifier symbol is used in combination with the variable symbol a
9、s required and shall be expressed by capital letter. However, where there is no fear to cause misunderstanding, small letter may be used. 4.2.4 Functional Symbols The functional symbol is a letter symbol to express the function and expressed by capital letter. The sequence where not less than two fu
10、nctional symbols are arranged shall b e a s I , R , C , T , Q , S, Z , A . For the function required not to.be identified specially, this symbol may be omitted. it is not required to identify that it is attached with a indicator it becomes FCA, and where it is not required to identify that it is att
11、ached with an alarm it becomes FIC instead of FICA. For example, in fiowrate indicating control alarm instrument, where Remark: Where the functional symbol A is modified to display upper limit alarm and lower limit alarm, respectively H , and L may be used to display as specification symbols (refer
12、to 5.4) , The deviation, changing rate, etc. may be indicated with a specification symbol in the same way. clarified to use. In this case, meaning of the symbol shall be 4 . 3 Identifying Number The identifying number is used to identify the individual measurement and control loop and shall be expre
13、ssed by Arabic numeral. 4.4 Graphic Symbols 4.4.1 Circle Symbols The function of instrumentation control shall be indicated with the letter symbol and identifying number described inside the circle symbol (Table 2) indicated by a fine continuous line of about 10 mm in diameter, them may be described
14、 outside the circle. Where it is impossible to describe these inside the circle, a part of c Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 10:43:04 MDTNo reproduction or networking permit
15、ted without license from IHS -,-,- 7 Z 8204-1983 Table 2 Division of place General case where the divi- sion of place of monitor and control is not required. Where the division of place of monitor and control is required Site Instrument room ( 5 ) Graphic symbol O O e Note ( 5, The place where the o
16、perator carries out ordinarily the monitor and control of the equipment. Remark: Where the letter symbol and identifying number are described inside the circle, the letter symbol shall be described on the upper part and the identifying number on the lower part. Where the place of monitor and control
17、 is an instrument room, the letter symbol shall be described on the upper part of the horizontal line and the identifying number, on the lower part. Further, the letter symbol may be described on the left side of upper. part of the circle and the identifying number, on the right side. 4.4.2 Lines wi
18、th the following: The lines to be used for graphic symbol shall be in accordance (1) Connection Line of Instrument and Process an instrument and a process shall be a continuous thin line as shown in Fig. 1, and be thinner than the lines used to delineate the general piping or the plant appliances, T
19、he connection line of Fig. 1 0 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 10:43:04 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S ZU8204 83 I 4933608 0
20、079036 5 U 8 Z 8204-1983 (2) Signal Line The signal line shall, as a rule, be a continuous thin line having strokes inclined at approx. 60 to the line at the equal interval as shown in Fig. 2 and be indicated thinner than general piping lines. Fig. 2 Alternatively, a continuous thin line without str
21、oke may be used as shown in Fig. 3 where there is no risk of confusion. Fig. 3 Remark: In specially inevitable case, the broken line ( - - - ) may be used instead of continuous line. However, these two methods shall not be mixed. (3) Connection Type of Signal Lines shall be as given in Table 3. The
22、connection type of signal lines Table 3 Connection state Graphic symbol Where not connected Where connected I Where branched T Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 10:43:04 MDTNo
23、 reproduction or networking permitted without license from IHS -,-,- 1 7 1 1 JIS z w o 4 83 m 4w3b08 O O O I J 7 m 9 z a204-19a3 (4) Flowing Direction of Signal Line circuits and the like to indicate the direction of signal, an arrow shall be added as shown in Fig. 4. Where it is necessary in comple
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- JIS 8204 1983 R2005 ENG
链接地址:https://www.31doc.com/p-3786934.html