Product Features	Adopting imported high-quality silicon piezoresistive sensors, stainless steel extended structure, high measurement accuracy (0.1%, 0.2%)
	All stainless steel welded structure, reliable sealing technology process, superior stability (better than 0.1% per year);
	Advanced modular design, strong applicability, with analog, intelligent, explosion-proof, and intrinsic safety features
	Full range, widely applicable for liquid level measurement in various fields and industries!

Working principle	The pressure sensor probe is placed in the measured liquid and subjected to a certain static pressure of the medium (P). This pressure is related to the measured liquid
	The liquid level height (h, m) of the body is proportional to P=ρ gh (Pa), where ρ is the specific gravity of the medium (g/cm3) and g is
	The local gravitational acceleration (m/s2) is constant for the measured medium and location, where ρ and g are constant. The electronic components of the transmitter will apply pressure
	The liquid level pressure signal measured by the force sensor is transmitted to the display instrument, and the liquid level signal of the medium is displayed through circuit conversion.

Technical Parameter	·Measurement range	Minimum 0~0.2m, maximum 0~4m
	·Measurement accuracy	(Comprehensive errors include linearity, hysteresis, and repeatability) 0.5% FS, 0.2% FS, 0.1% FS
	·Long term stability	Better than 0.1% annually
	·Allowable medium temperature	-20℃~110℃
	·Allow ambient temperature	-40℃~85℃
	·Allow storage temperature	-40℃~85℃
	·Temperature influence	0.5% accuracy level -20 ℃~80 ℃: every 10K+0.15% for other temperature ranges, every 10K ± 0.2%
		0.2%, 0.1% accuracy level 20 ℃~80 ℃: every 10K+0.1%, other temperature ranges every 10K ± 0.15%
	·Material of the part in contact with the medium
	·Silicon piezoresistive sensor	Corrugated film 316L (special requirements agreed upon)
	·Measuring sensor housing	Stainless steel 316L (special requirements agreed upon)
	·Insert extension rod	Stainless steel 304
	·Material of non-contact parts with the medium
	·Electronic component housing	Stainless steel 304, IP66
		Die cast aluminum epoxy coating IP66
	·Process connectors	Stainless steel 304
	·Process Connection Standard	Thread G11/2A; Flange DN40 PN0.6MPa GB9123-2000
		Sanitary clamp type DN50; Split installation; Special requirements agreed upon
	·Working voltage	（12.5~30V DC）
	·Signal output	Analog type: 2-wire system 4-20mA
		Intelligent two-wire 4-20mA with HART communication protocol
	·Cable entry hole	Internal thread M20 × 1.5 (special requirements agreed upon)
	·Analog cable	Three core instrument cable
	·Intelligent cable	Suggest using shielded twisted pair cables for wiring
	·Monitor	3 1/2 digit digital LCD display suitable for analog type
	·Preheating time	Simulated 200ms; Intelligent type: 2ms
	·Response time	Simulation type: 60ms; Intelligent type: 230ms
	·Damping	(limited to stainless steel shell and die cast aluminum shell only) Analog type: 2s; Intelligent type: 0-40s
	·Electromagnetic compatibility	The radiation immunity of radio frequency electromagnetic fields complies with GB/T17626.3-1998 10V/m and meets Class A standards;
		The conduction impedance of RF field induction complies with GB/T17626.6-1998, U=10V, and meets Class A standards
	·Allow environmental humidity	95%HR

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Exterior structure

Electrical connection

load characteristics

Installation method

Communication protocol

The DB series intelligent liquid level gauge has remote communication function

Overlay a digital signal on the 4-20mA two-wire output signal of the level gauge transmitter to achieve HART communication protocol

Several standard functions. The functional implementation includes the following: manual operation using the HART communication protocol or a microcomputer (required)

Configure the HART communication protocol software interface to remotely calibrate the zero and full range values of the liquid level transmitter, display the temperature value of the medium

Display process pressure and liquid level values, adjust damping values, achieve self diagnostic function of the measurement system, and display various fault code representations

Class fault status, location, and cause.

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