Product Features	Adopting imported high-quality silicon piezoresistive sensors, air conducting extension cable structure, high measurement accuracy (0.1%, 0.2%),
	Superior stability (better than 0.1% per year), reliable modular design, strong applicability, with analog and intelligent capabilities
	Type, explosion-proof type, intrinsic safety type, 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 0~0.5m, maximum 0~350m
	·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℃~80℃
	·Allow ambient temperature	-40℃~85℃
	·Allow storage temperature	-40℃~85℃
	·Temperature influence	0.5% accuracy level -20 ℃~80 ℃: every 10K+0.15%,
		Every 10K ± 0.2% in the remaining temperature range
		0.2%, 0.1% accuracy level 20 ℃~80 ℃: every 10K+0.1%,
		Every 10K ± 0.15% in the remaining temperature range
	·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)
	·Air conducting cable	polyurethane
	·Sensor counterweight	Stainless steel 304 (special requirements agreed upon)
	·Material of non-contact parts with the medium
	·Electronic component housing	Plastic BPTP (no display) IP66
		Stainless steel 304 IP66
		Die cast aluminum epoxy coating IP66
	·Process connectors	Stainless steel 304
	·Process Connection Standard	Card sleeve installation: pipeline installation；Card sleeve installation: wall mounted installation；Thread G11/2A;
		Flange DN40 PN0.6MPa GB9123-2000；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

Exterior structure

Electrical connection

load characteristics

Installation method

Accessory appearance structure

Communication protocol

DB series intelligent liquid level gauge with 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 (requires configuration)

The HART communication protocol software interface can remotely calibrate the zero point and full range values of the liquid level transmitter, display the temperature value of the medium, and indicate whether it has been used

Process pressure level value, adjust damping value, achieve self diagnostic function of the measurement system, display various fault states represented by fault codes

Location and reason.

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