Product Features	Adopting imported ceramic sensors, stainless steel extended rod structure, unique anti blocking flat film design, superior anti vibration,
	Impact resistance, extensive anti-corrosion performance, high measurement accuracy (0.1%, 0.2%), extremely strong applicability, with
	Simulation type, intelligent type, explosion-proof type, intrinsic safety type, suitable for industrial production wastewater, surface water, seawater
	Liquid level measurement.

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 (with a maximum accuracy of 0.2% for ranges below 0.7 meters)
	·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%, and every 10K ± 0.2% in the remaining temperature ranges
		0.2%, 0.1% accuracy level 20 ℃~80 ℃, every 10K+0.1%, and every 10K ± 0.15 in the remaining temperature ranges
	·Material of the part in contact with the medium
	·Ceramic capacitive sensor	96% alumina ceramic
	·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	External 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	100%HR

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 the HART communication protocol standard

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

The communication protocol software interface can remotely calibrate the zero and full range values of the liquid level transmitter, display the medium temperature value, and display the process pressure liquid

Position value, adjust damping value, achieve self diagnostic function of the measurement system, display various fault states, locations, and causes represented by fault codes.

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