AO3051 high-precision monocrystalline silicon differential pressure/pressure transmitter
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- AO3051 high-precision monocrystalline silicon differential pressure/pressure transmitter
Standard specification for monocrystalline silicon differential pressure transmitter
(Calibration range based on standard zero point, stainless steel 316L diaphragm, filled with silicone oil)
Performance specifications
Reference accuracy for range adjustment
(including linearity, hysteresis, and repeatability from zero) ± 0.075%
If TD>10 (TD=large range/adjustable range), it is: ± (0.0075 × TD)%
The square root output accuracy is 1.5 times the linear reference accuracy mentioned above
1. Environmental temperature impact
Range code
-20℃～65℃total impact
A
±(0.45×TD+0.25)%×Span
B
±(0.30×TD+0.20)%×Span
C/D/E
±(0.20×TD+0.10)%×Span
Range code
-40℃～-20℃和65℃～85℃total impact
A
±(0.45×TD+0.25)%×Span
B
±(0.30×TD+0.20)%×Span
C/D/E
±(0.20×TD+0.10)%×Span
Over range impact: ± 0.075% x Span
2. Static pressure influence
Range code
influence quantity
A
±(0.15%URL+0.10%Span)/4MPa
B
±(0.10%URL+0.075%Span)/16MPa
C/D/E
±(0.05%URL+0.05%Span)/16MPa
3. Overvoltage impact
Range code
influence quantity
A
±0.2%×Span/4MPa
B
±0.2%×Span/16MPa
C/D/E
±0.1%×Span/16MPa
4. Long term stability
Range code
influence quantity
A
±0.5%×Span/1year
B
±0.2%×Span/1year
C/D/E
±0.1%×Span/1year
4. Long term stability power supply impact: ± 0.001%/10V (12-42V DC), negligible.
Functional specifications
1. Range and Range
range/purview
kPa
mbar
A
range
0.1～1
1～10
purview
-1～1
-10～10
B
range
0.2～6
2～60
purview
-6～6
-60～60
C
range
0.4～40
4～400
purview
-40～40
-400～400
D
range
2.5～250
25～2500
purview
-250～250
-2500～2500
E
range
20～2000
0.2～20 bar
purview
-500～2000
-5～20bar
2. Range upper and lower limits
Within the upper and lower limits of the measuring range, it can be adjusted arbitrarily.
Suggest selecting range codes with the lowest possible range ratio to optimize performance characteristics.
3. Zero point setting
The zero point and range can be adjusted to any value within the measurement range in the table, as long as the calibration range is ≥ small range
4. Installation location impact
Changes in the installation position parallel to the membrane surface will not cause zero drift effects. If the installation position changes by more than 90 degrees from the membrane surface, there will be zero position effects within the range of<0.4kPa, which can be corrected by adjusting the zero position. No range influence.
5. Output
2-wire system, 4-20mADC, optional HART output digital communication, optional linear or square root output.
Output signal limit: Imin=3.9mA，Imax=20.5mA
6. Alarm current
Low alarm mode (small): 3.7 mA
High alarm mode (large): 21 mA
Non reporting mode (hold): Maintain the effective current value before the fault
Alarm current standard setting: high alarm mode
7. Response time
The damping constant of the amplifier component is 0.1s; The time constant of the sensor is 0.1 to 1.6 seconds, depending on the range and range ratio. The additional adjustable time constant is 0.1 to 60 seconds.
The impact on nonlinear outputs (such as square root function) depends on the function and can be calculated accordingly.
Preheating time:< 15s
Environmental temperature: -40~85 ℃; -20~65 ℃ with LCD display and fluororubber sealing ring
Storage temperature/transportation temperature: -50~85 ℃; When equipped with LCD display:- 40～85℃
Working pressure: The rated working pressure is divided into three levels: 16MPa, 25MPa, and 40MPa
Static pressure limit: From a pressure of 3.5kPa to the rated pressure, the protective pressure can be greater than 1.5 times the rated pressure and applied to both sides of the transmitter.
Unidirectional overload limit: Unidirectional overload can reach the rated pressure
Electromagnetic Compatibility (EMC)
Refer to the "Electromagnetic Compatibility Appendix" on the next page
Installation
1. Power supply and load conditions
The power supply voltage is 24V, R ≤ (Us-12V)/Imax k Ω; where Imax=23 mA
Large power supply voltage: 42VDC
Small power supply voltage: 12VDC, 15VDC (backlit LCD display)
Digital communication load range: 250～600Ω
2. Electrical connection
M20X1.5 cable sealing buckle, the terminal block is suitable for wires of 0.5-2.5mm2.
3. Process Connection
The two ends of the process connection flange have NPT 1/4 and UNF 7/16 internal threads.
Physical specifications
1. Material
Measurement membrane box: stainless steel 316L
Diaphragm: Stainless steel 316L, Hastelloy C
Process flange: Stainless steel 304
Nut and bolt: stainless steel (A4)
Filling fluid: Silicone oil
Sealing rings: Nitrile rubber (NBR), Fluororubber (FKM)
Polytetrafluoroethylene (PTFE)
Transmitter housing: made of aluminum alloy material, coated with epoxy resin on the outside
Shell sealing ring: Nitrile rubber (NBR)
Nameplate: Stainless Steel 304
Weight: 3.3kg (none: LCD display, mounting bracket, process connection)
Shell protection level: IP67
2. Electromagnetic Compatibility Appendix
Serial Number
Test project
Basic standards
Test conditions
Performance Level
1
Radiation interference (shell)
GB/T 9254-2008Table 5
30MHz～1000MHz
qualified
2
Conducted interference
(DC power port)
GB/T 9254-2008Table 1
0.15MHz～30MHz
qualified
3
Electrostatic discharge (ESD) immunity
GB/T 17626.2-2006
4kV(contact)
8kV(air)
B
4
Radio frequency electromagnetic field immunity
GB/T 17626.3-2006
10V/m (80MHz～1GHz)
A
5
Power frequency magnetic field immunity
GB/T 17626.8-2006
30A/m
A
6
Electrical fast transient burst immunity
GB/T 17626.4-2008
2kV(5/50ns,5kHz)
B
7
Surge immunity
GB/T 17626.5-2008
1kV（Between lines）
2kV（Between lines and ground）(1.2us/50us)
B
8
Immunity to Conducted Interference Induced by Radio Frequency Field
GB/T 17626.6-2008
3V (150KHz～80MHz)
A
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AO3051DP/GP isolated intelligent remote differential pressure/pressure transmitter Instrument Model AO3051DP isolated intelligent remote differential pressure/pressure transmitter Measuring Range B -6 kPa～6 kPa C -40 kPa～40 kPa D -100 kPa～250 kPa F -0.1 MPa～3 MPa G -0.1 MPa～10 MPa Structural Material Flanges and Joints Isolation Diaphragm 22 316（Stailess Steel） 316L（Stailess Steel） 23 Hastelloy C 25 Tantalum (above 6kPa) 26 Gold Plating 27 PTFE Spraying 28 Titanium 29 Nickel 00 Other Materials Remote Transmission Device S1 one remote transmission device S2 two remote transmission device Basic Error D ±0.1% (above 6kPa, ranges B~G optional) E ±0.2% (above 6kPa, ranges B~G optional) F ±0.5% (above 6kPa, ranges B~G optional) Pressure Chamber Flange; Fastener Material E Galvanized Carbon Steel F Stainless Steel 304 G Stainless Steel 316 Optional Parts B1 Pipe-Mounted Elbow Bracket B2 Panel-Mounted Angled Bracket B3 Pipe-Mounted Flat Bracket SU Stainless Steel 316 Housing X No Oil Allowed Y No Water or Oil Allowed Z Degreased i Intrinsically Safe Type Ex ia IIC T6 d Flameproof Type Ex d IIC T6 Selection Examples AO3051DP - C - 22 - S2 - D - E - B1
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