Pressure type water level gauge

The KH.YLS pressure water level meter is a fully stainless steel, hermetically sealed, submersible intelligent liquid level measuring instrument. This product utilizes a highly stable and reliable piezoresistive OEM pressure sensor and a high-precision intelligent transmitter processing circuit. Employing precision digital temperature compensation and non-linear correction technology, it delivers high-accuracy liquid level measurement.

◆Stable and reliable: Integrated structure with a fully sealed design, employing precision digital temperature compensation and non-linear correction technology.

◆Two-wire system operation: Directly replaces two-wire analog 4mA～20mADC output transmitters.

◆Small size and easy installation: Compact and lightweight, it is easy to install, supports networking applications, and is suitable for a wide range of applications.

Application Scenarios:

Particularly suitable for monitoring flowing water bodies, rivers of all sizes, and reservoirs. Common applications include: water resources and hydrology, upstream and downstream of dams, groundwater, the chemical industry, sewage treatment plants, and urban drainage pumping stations.

Basic range (mH2O)		3.5	7	10	20	35	70	100	200
Overpressure (mH2O)		5	10	15	30	50	100	150	300
All intermediate range analog output transmitters (not overpressure) are implemented with basic range expansion. The minimum range expansion is 1/5 of the basic range.
Normal working conditions:
Temperature range	Working temperature: -10℃～70℃, -20℃～60℃ (intrinsically safe);
	Compensation temperature -10℃～70℃; Storage temperature -20℃～85℃;
	Special temperature ranges can be negotiated with us.
Comprehensive accuracy	±0.075%FS (minimum), ±0.1%FS (typical), ±0.25%FS (maximum);
	Comprehensive accuracy includes nonlinearity, hysteresis, repeatability and temperature errors;
	The 3.5mH2O and 7mH2O level transmitters have a typical comprehensive accuracy of ±0.5%FS after range scaling.
Long-term stability	±0.2%FS/year.
Output signal	4mA～20mA DC; RS485 interface (custom protocol) or HART® protocol.
Power supply	10V~28V DC (RS485 interface type), 12V~30V DC (HART® type); 10V~12V DC (intrinsically safe type, powered by safety barrier).
Load Capacity	4mA～20mA DC output, (U-10V/12V)/0.02A(Ω); RS485 bus can connect 99 transmitters.
Insulation resistance	100MΩ, 50V.
vibration	20g, 20Hz～5000Hz.
Shock	20g, 11ms.
Protection level	IP68 (transmitter part); IP65 (junction box part).
Media compatibility	Diaphragm: stainless steel 316L; Shell: stainless steel 1Cr18Ni9Ti; O-ring: fluororubber.
weight	About 250g.

Pressure type water level gauge