Low-static pressure differential transmitter calibration instrument
A transmitter and static pressure difference technology, which is applied in the field of low static pressure differential pressure transmitter calibrator, can solve problems such as reading error, difficult operation and positioning, oil leakage, etc., and achieves convenient operation, fast calibration, and structural compact effect
Inactive Publication Date: 2013-08-07
NANJING COLLEGE OF CHEM TECH
View PDF7 Cites 8 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] Differential pressure transmitters are widely used in the measurement of flow and liquid level. Now most of the differential pressure transmitters are calibrated by medium and high pressure static pressure differential pressure transmitter calibrator, and the static pressure is manually adjusted. and differential pressure signal, not only difficult to operate and locate, easy to cause oil leakage, but also easy to cause human-made reading errors
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
[0028] refer to figure 1 , figure 2 , the calibrator of the low static pressure differential pressure transmitter of the present invention comprises a bottom plate 2, a side plate 3 and a panel 1, and a power switch 18, an output voltage interface 19, an alarm indicator light 20, and an LCD are installed on the panel 1 Display 21, keyboard 22, input signal interface 23, standard differential pressure transmitter 14, standard differential pressure transmitter connector 15, calibrated differential pressure transmitter connector 16, standard differential pressure transmitter bracket 29, calibrated differential Pressure transmitter bracket 30, three-valve group 7 and fine-tuning valve 8 are arranged on the side plate 3, and air compressor 4, air storage tank 5, air filter 6, electromagnetic Valve A9, solenoid valve B10, solenoid valve C11, solenoid...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a low-static pressure differential transmitter calibration instrument, which belongs to the field of automation calibration instruments and meters. The calibration instrument is characterized by comprising a bottom plate, a side plate and a panel, wherein a power switch, an output pressure interface, an alarm indicator, a liquid crystal display (LCD), a keyboard, an input signal interface, a standard pressure differential transmitter, a standard pressure differential transmitter interface, a calibrated pressure differential transmitter interface, a standard pressure differential transmitter support and a calibrated pressure differential transmitter support are installed on the panel, and three valve groups and a micrometering valve are arranged on the side plate. The calibration instrument can be manually or full-automatically used for calibrating the pressure differential transmitter, is provided with overpressure alarm and protection and has the characteristics of compact structure, convenience in operation, quick calibration and in-time and accurate dynamic display, and the static pressure limit of the calibration instrument is 1MPa.
Description
technical field [0001] The invention relates to a calibration instrument for a low static pressure differential pressure transmitter, which belongs to the field of automatic instrument calibration instruments. Background technique [0002] Differential pressure transmitters are widely used in the measurement of flow and liquid level. Now most of the differential pressure transmitters are calibrated by medium and high pressure static pressure differential pressure transmitter calibrator, and the static pressure is manually adjusted. And differential pressure signal, not only difficult to operate and locate, prone to oil leakage, but also prone to artificial reading errors. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a low static pressure differential pressure transmitter calibrator with compressed air as the pressure medium, manual and automatic calibration, automatic positioning of calibration points, and a s...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01L27/00
Inventor 郭凯志
Owner NANJING COLLEGE OF CHEM TECH