JPS59103225U

JPS59103225U - flow measuring device

Info

Publication number: JPS59103225U
Application number: JP20044582U
Authority: JP
Inventors: 一郎和田
Original assignee: 株式会社東芝
Priority date: 1982-12-25
Filing date: 1982-12-25
Publication date: 1984-07-11

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案−実施例の流量測定装置を示す概略図、
第２図は電磁流量計の配線図、第３図は制御箱２内に設
けられた回路を示すブロック図、第４図および第５図は
検知スイッチとしてフォトカプラを用いる場合の異なる
接続例を示す配線図、第６図および第７図は、本考案の
他の実施例で用いられる制御箱２内の回路を示すブロッ
ク図、第８図は、変換器９の出力を受けるレベル弁別器
を示すブロック図、第９図は本考案の流量測定装置を備
えたプラントの一例を示す配管図である。８・・・切換回路、９・・・変換器、２０・・・弁別器
、Ｆ１〜Ｆｎ・・・電磁流量計、ＥＸ・・・励磁コイル
、ＲＲ・・・リードリレー、ＰＣ・・・フォトカプラ。第５図〜畠Ａ第７図　　　　　　７．−〇 □ ゝＥＭ９　　　　　　　　第６図［：今’ｉｔ　　１ｌＴｉ１■ ぜゼ１−ｌ　ｊ−＋FIG. 1 is a schematic diagram showing a flow rate measuring device according to an embodiment of the present invention;
Figure 2 is a wiring diagram of the electromagnetic flowmeter, Figure 3 is a block diagram showing the circuit installed in the control box 2, and Figures 4 and 5 show different connection examples when using a photocoupler as a detection switch. 6 and 7 are block diagrams showing the circuit inside the control box 2 used in other embodiments of the present invention, and FIG. 8 shows a level discriminator receiving the output of the converter 9. The block diagram shown in FIG. 9 is a piping diagram showing an example of a plant equipped with the flow rate measuring device of the present invention. 8... Switching circuit, 9... Converter, 20... Discriminator, F1-Fn... Electromagnetic flowmeter, EX... Excitation coil, RR... Reed relay, PC... Photo coupler. Figure 5 - Hatake A Figure 7 7. -ゝ□ ゝEM 9 Figure 6 [: Now'it 1lTi 1■ Zeze1-l j-+

Claims

[Scope of utility model registration request]

a switching circuit that selects one of the plurality of electromagnetic flowmeters and supplies an excitation current to its excitation coil; It is equipped with a plurality of detection switches that detect when an excitation current is supplied and close the circuit, and the output signal of the electromagnetic flowmeter is received at a common input terminal via the corresponding switch, and the level is converted. Flow rate measuring device equipped with a level converter.