The AO910W input type liquid level transmitter uses a diffusion silicon pressure sensitive chip, which converts the liquid level signal of the measured liquid into a 4-20mA DC standard signal through a highly reliable amplification circuit. This product comes in two types of structures: integrated and split type. Split type products also have two types: armored and anti-corrosion. Armored and anti-corrosion products can resist the erosion of various corrosive liquids and meet the needs of customers to the greatest extent possible. The AO910W input type liquid level transmitter product is divided into two types: ordinary type and intrinsic safety explosion-proof type. The explosion-proof type product can be applied to various harsh and dangerous places.
Scope of Application/Industrial field liquid level measurement and control/Hydrological measurement and monitoring/Reservoir dam water level measurement vessel and navigation system/Urban and water supply system/Circulating water and sewage treatment system
Characteristics
Can be directly immersed in liquid to measure liquid level
Integrated and easy to use
Split type, convenient for fixed installation and calibration
Armored type, anti-corrosion type
Lightning protection and radio frequency interference prevention
Reverse polarity protection and current limiting protection
Intrinsically safe explosion-proof
Exquisite structure and convenient installation
High precision, high stability, high reliability
Accuracy |
±0.1%,±0.2%(Refer to the selection guide for details) |
Zero deviation |
Not exceeding ± 0.5% of the output range (zero point adjustable for split type products) |
Zero point and range adjustment |
±20%(Split type adjustable, integrated product not adjustable) |
Range adjustment |
Adjustable between small and large ranges (for split type products, the range of integrated products cannot be adjusted) |
Power supply impact |
Less than 0.01%/V of the output range |
Load impact |
Negligibl |
Temperature influence;
-Within the range of 10 ºC to+60 ºC: the variation is less than ± 0.1%/10 ºC (0.1 level)
Change less than ± 0.15%/10 ºC (0.2 level);-30 ºC~-10 ºC, 60 ºC~+85 ºC:
variation less than ± 0.15%/10 ºC (0.1 level)
Change less than ± 0.20%/10 ºC (0.2 level)
Stability;±0.25%FS/3year
performance index
Measurement medium;Purified water and general liquids (cable output)
Various liquids compatible with 316L stainless steel (armored split structure)
Various corrosive liquids (anti-corrosion type split structure) (only applicable to 920 type)
Range of measurement;0~1m to 0~200m(Refer to the selection table)
Overload pressure
Twice the amount of travel
output signal;4~20mADC(two-wire)
working voltage ;12V-36V DC
operation temperature;-20ºC~60ºC
Storage temperature;-40ºC~80ºC
load resistance;(4-20mA) Among them: U is the power supply voltage, RD is the internal resistance of the cable
structure indicator
Membrane material;316L stainless steel diaphragm (ordinary and armored types)
Ceramic membrane (anti-corrosion type) (only applicable to 920 type)
Shell Material;304 (ordinary type and armored type)
Polytetrafluoroethylene (anti-corrosion type) (only applicable to 920 type)
Lead out line;Double layer wear-resistant waterproof ventilation cable (cable output integrated structure)
Or Φ 6 outer diameter stainless steel armored tube (armored type split structure)
Or Φ 7.5 outer diameter PTFE hose (anti-corrosion type split structure) (only applicable to 920 type)
Junction box
Low copper aluminum alloy surface spray treatment (integrated structure)
Indicator table
3-1/2LCD digital display (digital display, only for split type products)
Explosion proof sign
Exib 2CT6
protection grade
Better than IP65