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RK-082 Side mounted type differential pressure density meter for automatic measurement instrument of various liquid or liquid mixtures of on-line measurement of the density. Is a kind of instrument for field measurement of liquid density continuous online, can be directly used in the process of industrial production. The intelligent on-line density meter adopts advanced technology, including: a capacitor type high precision differential pressure sensor and a pair of pressure relay which is connected with the production process. A temperature sensor is arranged between the two pressure relays to compensate for the temperature variation of the process fluid. When side mounted type differential pressure density meter is working, the liquid density can be continuously measured online, and the process can be directly used for the control of the production process. Adopting the integrated two wire transmitter structure, no moving parts are easy to install and use, and the maintenance is simple. The belt cleaning device can be cleaned regularly to ensure the accuracy of the use.

二、Operational principle

RK-082 Side mounted type differential pressure density meter is a high precision differential pressure transmitter. Its working principle: liquid column pressure and the fixed height is proportional to the density of liquid.

P=ρgh

In the formula: P——liquid column pressure and the fixed height

ρ——the density of liquid

h——height of liquid column

According to the pressure measuring pressure value in measuring acceleration of gravity with known height of liquid column under the condition, can be measured liquid density.

surement range	0.000 - 3.000 g/cm 0.000 - 3000 kg/cm3 （Users can freely choose the measurement range）
Calibration range	0.500 - 3.000 g/cm 500 - 3000 kg/cm3 （According to the user selected）
Measurement accuracy	±0.01 g/cm3、±0.005 g/cm3、±0.002 g/cm3 (User choose for accuracy)
Repeatability	±0.0005 g/cm3 (±0.5 kg/m3)
Operating temperature range	-50℃~+250℃ (Different medium temperature is optional, divided into low temperature, normal temperature, high temperature type)
Maximum working pressure	7.0MPa
Fluid viscosity range	0 -20000 cP
Temperature coefficient	＜0.1kg/cm3/℃ (after correction)
Pressure influence	Negligible
Built-in temperature sensor	PT1000
Liquid materials	316L, Hastelloy C-276, tantalum, titanium, PTFE polyethylene (special Aussino)
The fork body coating	Standard、PTFE、Zirconia
Power supply	24VDC, ≥500 mA
Intelligent signal output	4-20Ma、RS485ModbusRTU
Display mode	HD backlight LCD display meter
Output accuracy （20℃）	±0.5% or ± 0.2%FS
Output repetitive (-40 ~+85℃)	±0.1%FS
Process connection	Flange type (size can be customized according to the site or the user's own requirements)
Protection grade	IP67
Shell	Aluminum Alloy
Explosion-proof type	EXd II CT4/5/6

Sugar and wine industry: Squeeze the juice, syrup, Grape Juice, lime juice, alcohol density GL, molasses, hexane / ethanol interface, etc.

u Dairy industry :milk, lactose, cheese, dry cheese, lactic acid, etc.

u Mining industry: coal, potash, brine, phosphate, calcium compounds, limestone, copper and gold, etc.

u Oil refining industry: lubricating oil, aromatic agent, fuel oil, vegetable oil, etc.;

u Food processing industry: tomato juice, grape juice, lemon juice, tomato sauce, molasses, vegetable oil, syrup, fruit jelly, jam, etc.

u Pulp and paper industry: black paste, green pulp, pulp washing, evaporator, caustic etc.;

u Beverage processing: beer, soft drinks, wine, Instant Coffee ,etc.

u Chemical: caustic soda, acid, urea, cleaning agent, polymer density, ethylene glycol, sodium chloride, sodium hydroxide, etc.

u Petrochemical: natural gas, oil and gas washing, kerosene, lubricants, oil / water interface, etc.

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