Title:
APPARATUS FOR DISPLAYING CHANGE QUANTITY OF LIQUID LEVEL OF TANK
Document Type and Number:
Japanese Patent JPH0231114
Kind Code:
A
Abstract:
PURPOSE:To monitor the change quantity of the liquid level of a tank by the system diagram of a CRT display device by providing the CRT display device and a liquid level change quantity display function part. CONSTITUTION:A liquid level change quantity operation function part 6 is provided and the transfer operation signal inputted to a computer 3 is received by said function part 6 to determine a feed-out tank and a receiving tank on the basis of a feed-out tank and receiving tank judge condition preset at every transfer operation signal and the liquid level change quantity of each tank is calculated by the following formula, that is, liquid level change quantity = liquid quantity at starting time of transfer operation - present liquid quantity. By this method, the liquid level change quantity is calculated and displayed on a CRT display device 4 as a figure by a liquid level change quantity display function part 8. By this constitution, the liquid level change quantity of the tank can be monitored by the system diagram of the device 4.
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Inventors:
SHIMOMURA KENICHI
Application Number:
JP17904488A
Publication Date:
February 01, 1990
Filing Date:
July 20, 1988
Export Citation:
Assignee:
HITACHI LTD
HITACHI ENG CO LTD
HITACHI ENG CO LTD
International Classes:
G01F3/36; (IPC1-7): G01F3/36
Attorney, Agent or Firm:
Katsuo Ogawa (2 outside)
Next Patent: JPH0231115