The HK-7000 series liquid level gauge verification device based on the actual marking method complies with the requirements of JJG 971 Verification Regulation. It is a dedicated metrological verification device for liquid level instruments, integrating software and electrical measurement functions. The measurement system conducts precise liquid level measurement, while the control system realizes accurate liquid level control, meeting the requirements of fully automatic testing. It is widely used in various calibration laboratories and metrological inspection institutes.
With the emergence of many new types of liquid level gauge products and technologies, the existing liquid level gauge verification devices generally have problems such as low accuracy and inconvenient installation methods. To address these issues, after conducting extensive research on the working conditions of liquid level gauges, the current status of liquid level gauge products, as well as existing verification conditions and methods, and comprehensively considering the domestic market's requirements for liquid level metrological equipment, Liaoning Huake Petroleum Equipment Technology Co., Ltd. has developed this set of liquid level gauge verification device.
The HK-7000 series liquid level gauge verification device based on the actual marking method complies with the requirements of JJG 971 Verification Regulation. It is a dedicated metrological verification device for liquid level instruments, integrating software and electrical measurement functions. The measurement system conducts precise liquid level measurement, while the control system realizes accurate liquid level control, meeting the requirements of fully automatic testing. It is widely used in various calibration laboratories and metrological inspection institutes.
With the emergence of many new types of liquid level gauge products and technologies, the existing liquid level gauge verification devices generally have problems such as low accuracy and inconvenient installation methods. To address these issues, after conducting extensive research on the working conditions of liquid level gauges, the current status of liquid level gauge products, as well as existing verification conditions and methods, and comprehensively considering the domestic market's requirements for liquid level metrological equipment, Liaoning Huake Petroleum Equipment Technology Co., Ltd. has developed this set of liquid level gauge verification device.
1.The main body is fully made of stainless steel. The wetted parts and sealing parts are treated with anti-corrosion measures, and the shell is polished to effectively prevent scratches and oil residue.
2.It adopts 304 stainless steel with top-mounted flange for process connection, bearing a load of 50kg, and can be customized with tooling according to customer requirements.
3.Food-grade plastic is used, with a no-load weight of 10kg and a full-load weight of 200kg.
4.The control cabinet integrates the host, display, control, and acquisition functions (control cabinet is optional).
5.Vertical positioning of the standard device: vertical calibration is performed during installation to ensure verticality after installation.
6.The independently developed control processor enables accurate liquid level control.
7.The power supply adopts 220V AC with a peak power consumption of 2000W, and it is used in conjunction with control software.
Measurement range: Customizable according to customer needs, with a maximum range of up to 4000 mm (the floor height of the laboratory shall be at least the actual measurement height + 600mm). Recommended common ranges: (0～2000) mm, (0～2500) mm, (0～3000) mm, etc.
Error: ±0.05 mm; ±0.1 mm; ±0.2 mm; ±0.5 mm; ±1 mm.
Accuracy of standard device: ±0.02/0.05/0.1mm for grating displacement motion platform, ±0.1mm (alternative), and ±(0.1+0.1L) mm for steel straightedge/steel tape.
Working medium: Water.
Communication interface: RS232/RS485.
Analog signal acquisition type: ±30mA, ±30V, with an accuracy of ±0.02% F.S, ±0.05% F.S.
Displacement control accuracy: 0.01/0.1mm.
Resolution: 0.01/0.1/1mm.
Measurement interface: Side-mounted series DN 20～DN 100 (standard DN50, other interfaces can be customized according to user requirements); top-mounted series DN 50～DN 150 (standard DN150, other interfaces can be customized according to user requirements).
Control speed: 2m/10min.
