0102030405
HSIN8000 Standard Method Liquid Level Gauge Calibration Device
Description
HSIN series real standard liquid level gauge verification device is a standard device specially used for the traceability of liquid level instrument. It integrates the collection and processing of digital signal, analog signal and alarm signal. The liquid level is accurately measured by the measurement system and accurately controlled by the control system to meet the requirements of full-automatic detection. It is widely used in various calibration laboratories and measurement and testing institutes
Feature
1.Measurement range: customized according to customer requirements, with a maximum range of 4000 mm;
2.Allowable error: ±0.05mm、±0.1mm、±0.2mm、±0.5mm、±1mm；
2.Working medium: Water
3.Measuring part: linear motor control accuracy and positioning, and the measuring cylinder can rotate 90 °
4.Software part: customize the special control function, control all executive functions through the processing controller, and print the results directly, which is simple to operate and avoid artificial fraud;
5.Measuring interface: side mounted series DN 20 ~ DN 100 (standard DN 25, other interfaces proposed by the user and customized separately), top mounted series DN 50 ~ DN 150 (standard DN 150, other interfaces proposed by the user and customized separately).
6.Analog signal acquisition type: 4 ~ 20 mA, 1 ~ 5 V,
7.Accuracy: ± 0.02%;
8.Digital signal acquisition interface: Hart, RS 232, RS 485
9.The maximum range meets all accuracy levels in the verification regulation of JJG 971 liquid level gauge and meets the traceability requirements of liquid level gauge.
Technical Indicators
Main Part:
The main part is mainly composed of measuring cylinder, water tank, control cabinet and vertical positioning parts, all of which are made of stainless steel. The butt joint part and sealing part are treated with anti-corrosion treatment. The surface of its shell is matted and its thickness is greater than 1.5mm, which can effectively prevent scratchingand oil residue.
1.Measuring cylinder
304 stainless steel, thickness ≥ 4 mm, outer diameter 180 mm and length 3200 mm; It is connected with a top mounted flange with a maximum DN150，its side mounted maximum DN 100 ，Other sizes can be customized according to customer requirements. In order to facilitate installation, the measuring cylinder can be placed down automatically, and the maximum included angle of rotation can reach 85 °，According to the convenient installation of customers, the angle can be adjusted by ourselves, and the maximum load bearing is 500 kg.
2. Water tank
It adopts 304 stainless steel with wall thickness ≥ 1.5 mm. The no-load weight is 70 kg and the full load weight is 900 kg. The upper cover can be disassembled to clean the residual dirt.
3. Control cabinet
The shell is made of 304 stainless steel with thickness ≥ 1.5 mm. The maximum height is 1085 mm, the desktop length is 1500 mm, the width is 660 mm, and the desktop height is 735 mm. It is integrated with the host, display, control, acquisition and printing.
4.Vertical positioning component
Vertical positioning of main standard: conduct vertical calibration during installation to ensure the verticality after installation. Vertical positioning of measuring cylinder: under the test condition, limit the positions at both ends of the measuring cylinder to ensure the vertical positioning of the measured instrument on the same plane as the main standard: different limit tooling shall be adopted according to different installation types of the measured instrument.
Control Part:
It adopts a fully self-developed control processor, which can control the filling and discharge of medium and the displacement of liquid level measurement mechanism; Inclination of cylinder, work of all control parts and handling of certificates and records; The control part is composed of control processor, solenoid valve, positioning module and automatic tilt mechanism.
1. Control processor
The power supply adopts 220 VAC and the power consumption is 300 W. Used with control software.
2. Solenoid valve
The power supply adopts 220 VAC and independent isolation chip to control the starting current and holding current respectively, so as to effectively avoid the heating of solenoid valve and ensure the service life. The service life is more than 500000 times.
3.Positioning module
The measurement accuracy is 0.005 mm to 0.01 mm, the positioning accuracy is 0.02 mm, and the long-term stability is 0.01 mm / year. The independent core algorithm is adopted to automatically track the liquid level and ensure the control accuracy.
4. Automatic tilting mechanism
The controller sends a signal to drive the cylinder to rotate the included angle, so as to achieve the purpose of convenient installation
Measurement Part:
The measurement part consists of micrometer sensor, fine-tuning component and data acquisition
1. Sensor
Fully independently developed micrometer sensor, with maximum error of ± 0.005 mm, long-term stability of 0.01 mm / year and temperature influence of 0.001 mm / 10 ℃.
2. Fine tuning part
The precision of liquid level fine adjustment is ± 0.02 mm
3. Data acquisition
The terminal directly displays the micrometer sensor with a resolution of 0.001 mm. The signal acquisition adopts seven and a half bit multi-function digital meter, and the acquisition accuracy is ≤ 0.02.
The Software Part:
It can realize the automatic measurement of preset parameters, realize the automatic collection, analysis, calculation and display of measurement data, save measurement data and open history records, generate and print records and reports, and obtain the current measurement status information.
Type Of Measurable Liquid Level Instrument
Magnetostrictive liquid level gauge, guided wave radar liquid level gauge, capacitive liquid level gauge, radio frequency liquid level gauge, electric float liquid level gauge, magnetic floating ball liquid level gauge, external mounted liquid level gauge, tuning fork \ vibration \ radio frequency \ floating ball controller, magnetic flap liquid level gauge, buoy liquid level gauge, steel strip liquid level gauge, glass plate liquid level gauge, glass tube liquid level gauge, window liquid level gauge, static pressure \ differential pressure pressure transmitter and other liquid level instruments, The verification results meet the requirements of 《verification regulation of liquid level gauge JJG971-2019》