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AO910 Diffused silicon pressure transmitter

Category: Pressure instrument

Category: Pressure transmitter

Category: Industrial Instrumentation Division

aotai03@fjautec.com

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Product description
Technical specifications
Product portfolio

- AO910 Diffused silicon pressure transmitter
Measuringprinciple
The product utilizes the piezoresistive effect of diftused silicon, a specific cystal orientation on monocrystallinesilicon wafers, to measure electrical bridges. By employing laser tuning and computer compensation algorithms, thetemperature characteristics have been significantly improved. The sensor has evolved from an early analog designto a digital one, enhancing the overall stability and reliability of the device.

Mainfeatures

▶Thread straight installation, flange installation, quickconnection;
▶Integrated and splitConventional industrial type (upper right figure), miniaturizedintelligent;
Miniature outlet: Chersman, direct cable lead-out, aviationplug
Explosion-proof: intrinsically safe (must be used in conjunction
with the input type safety barrier), explosion-proof;
Shell material: aluminum (conventional), stainlesssteel;
Intelligent: support HART, menu setting;
▶Non-intelligent: potentiometer adjustment;
▶Display: LCD with backlight;
▶Supports the Internet of Things, can be self-powered, 4G，
NBlOT and other wireless output.

applicationscenarios
It can be used in industrial sites for pressure, liquid level and other occasions, and can also be used in equipment pressure measurement supporting instruments.

Technical parameter

accuracy	±0.1%、±0.2%、±0.5%、±1%
Absolute pressure	0~35MPa each interval
gage pressure	-100KPa~100MPa each interval
negative pressure	-100KPa~2MPa each interval
medium	Liquids,gases,vapors
temperature	40.0~85℃(direct),the extension range can be extended by adding accessories such as pressure guiding tube,condensing bend and condenser
protect	Better than IP65
stability	Better than±0.25%FS/3 years
Vibration effects	At 20~200Hz in any direction,the variation is less than ±0.02%BFSL
shock effect	When the 100G impact is 11ms in any direction,the change is less than± 0.02%BFSL
Load impact	As long as the terminal voltage of the transmitter is greater than 12VDC
Production options	No oil,no water,no oil,no fat
explosion-proof	ExiallCT6 Intrinsically safe,ExdIICT6 Flameproof
Power Supply Voltage	12~36VDC,two-wire system
signal	Two-wire 4~20mA,HART
SIL attestation	NO.OP181106.FAFQD24
CPA	CPA Minliang Machine 846(Fujian Provincial Bureau of Quality and Technical Supervision)
conformity certificate of protection ［of electrical apparatus for explosive atmospheres］	CNEX18.5290X

Ao910 Diffused Silicon Piezoresistive Pressure Transmitter with LCD Display 4-20mA
Instrument Model	AO910	Diffused Silicon Pressure Transmitter
Measuring Range	A	0～1 kPa～2.5 kPa （Note1）
	B	0～2.5 kPa～7 kPa （Note1）
	C	0～7 kPa～20 kPa
	D	0～20 kPa～70 kPa
	E	0～35 kPa～100 kPa
	F	0～70 kPa～200 kPa
	G	0～100 kPa～350 kPa
	H	0～200 kPa～700 kPa
	I	0～350 kPa～1.0MPa
	J	0～700 kPa～2.0MPa
	K	0～1.0MPa～3.5MPa
	L	0～2.0MPa～7.0MPa
	M	0～3.5MPa～10MPa
	N	0～7MPa～20MPa
	O	0～10MPa～35MPa
	P	0～20MPa～60MPa
Diaphragm Material Selection	22	316L
Diaphragm Material Selection	25	Tantalum (except for flush diaphragms)
Output Signal	E	4～20mADC
Output Signal	S	Intelligent HART Fieldbus Protocol Interface
Basic Error	2	0.10%
	3	0.20%
	4	0.50%
Process Connection	R	Standard Type M20×1.5 Male Thread
	T1	Flush Diaphragm Type G1/2 Male Thread
	0	Processed According to User-Provided Dimensions
Option	M3	3 1/2 LCD Digital Display Head
	G	Gauge Pressure Measurement
	A	Absolute Pressure Measurement
	F	Negative Pressure Measurement
	B	Sealed Gauge Pressure Measurement
	S	Radiator and Process Connection Fittings
	J	Globe Valve (Standard Configuration: J21-160P DN6 304 M20x1.5 Female + φ14 Welded Pipe)
	K	Condensation Bend (Standard Configuration: φ142 M201.5 Female - M201.5 Male - 304 L=29.5 PN60)
	8	RS485-ModBus.RTU Communication
	B3	Pipe-Mounted Flat Bracket
	B4	L-Shaped Mounting Bracket
	C2	M20x1.5-Φ14
	E	Available with Mounting Flange (note the dimensions)
	X	Oil-Prohibited
	Y	Water-Prohibited and Oil-Prohibited
	Z	Degreasing
	i	Intrinsically Safe Type Ex ia IIC T6
	d	Flameproof Type Ex d II CT6 (Note 2)
	L	Lightning Protection
	Q	User Agreement
Selection Examples	AO910 - J - 22 - E - 4 - R - M3 - G

Note1	Suitable for measuring non-corrosive, dust-free, and dry gases.
Note2	Select a range above F for the measurement range.
Note3	For ranges below 350kPa (AO910-G), the housing has vent holes and cannot achieve flameproofing. If the customer uses a gas guide cable to connect to a safe area, this range can also achieve flameproofing; please specify when ordering.
Note4	For media such as sodium hydroxide, wet chlorine gas, acetic acid, and ammonia, full welding is recommended.

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