DB306 cable type static pressure level gauge

Product Features	Adopting imported ceramic sensors, air conducting extension cable structure, unique anti blocking flat film design, superior seismic resistance
	Dynamic, impact resistance, extensive anti-corrosion performance, high measurement accuracy (0.1%, 0.2%), extremely strong applicability, with
	There are analog, intelligent, explosion-proof, and intrinsic safety types, suitable for measuring the liquid level of industrial wastewater, surface water, and seawater.

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.

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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% 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
	·Ceramic capacitive sensor	96% alumina ceramic
	·Measuring sensor housing	Stainless steel 304 (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	ABS junction box IP67; Stainless steel 304 IP66; Die cast aluminum epoxy coating IP66
	·Process installation connectors	Stainless steel 304
	·Working voltage	（12.5~30V DC）
	·Electrical parameters	Working voltage (12.5~30V DC)
	·Signal output	Analog two-wire system 4-20mA
		Intelligent two-wire 4-20mA with HART communication protocol
	·Monitor	3 1/2 digit digital LCD display suitable for analog and intelligent types
	·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
	·Preheating time	Simulated 200ms; Intelligent type: 2s
	·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
	·Process Connection Standard	Card sleeve installation: pipeline installation; Card sleeve installation: wall mounted installation; Split installation
		External thread G11/2A; Flange DN40 PN0.6MPa GB9123-2000; Special requirements agreed upon

Exterior structure

Electrical connection

load characteristics

Installation method

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

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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