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Monosilicon absolute pressure transmitter
PPT301 series mososilicon pressure transmitter is a highperformance pressure transmitter with internationalleading technology meticulously designed by Pyrotechinstrument company, using the world's most advancedmonosilicon pressure sensor technology and patentencapsulation technology. Monosilicon pressuresensor locates on the top of the metal body and stayaway from the medium interface to realize mechanicalisolation and thermal isolation. Glass sintering sensorwire realizes high strength electrical insulation of metalbase and improves the capability of flexiblility of electroniccircuit and transient voltage resistance protection. Allthease original encapsulation technologies enable PPT301to easily cope with extreme chemical occasion and mechanical load, and own strong resistance to EMI,suffi cient to respond to the most rigorous industrialenvironment applications, which are the genuineinvisible instruments.
Main parameters
Pressure types | Absolute pressure |
Measuring range | 40kPa-10MPa, please refer to the ordering information chapter |
Output signal | 4-20mA, 4-20mA+HART, customer |
Reference accuracy | 士0.15% URL, optional土0.1% URL |
Field of application
Pressure
Measuring medium
The fluids which compatible with wetted parts
Approvals
Measuring range and limit
Nominal value | Smallest calibratable span | Lower range limit(LRL) | Upper range limit(URL) | Overload limit |
40kPa | 2kPa | 0kPa | 40kPa | 1MPa |
250kPa | 12.5kPa | 0kPa | 250kPa | 4MPa |
1MPa | 50kPa | 0kPa | 1MPa | 6MPa |
10MPa | 500kPa | 0kPa | 10MPa | 20MPa |
Above measurement range can be replaced by kg/cm2, MPa and kPa units .Which can provide other measurement range according to the requirements. Adjust requirements: lower range value (LRV) and upper range value (URV) can be adjusted within the scope of the upper and lower range limit, smallest calibratable span≤|URV-LRV| ≤ upper range limit |
Standard specifications and reference conditions
Test standard: GB/T28474 / IEC60770; Zero based- calibration span, Silicon oil filling, 316L stainless steel isolated diaphragm, 4-20mA analog output.
Performance specifications
The overall performance including but not limited to 【reference accuracy 】,【environment temperature |
Typical accuracy: ±0.15%URL |
Stability: ±0.2% URL/ 5 years |
Performance specifications
Standard and reference conditions, including linearity (BFSL), hysteresis and repeatability. calibration temperature: 20 ℃ ± 5 ℃ | |||
Linear output accuracy | TD≤10(Note1) | ±0.15%URL | Nominal value: 40kPa, 250kPa |
10<TD<20 | ±0.015TD% URL | ||
Note 1: TD is Turn down, TD=URL/ |URV-LRV| |
Power supply effects
Zero and span change should not be more than ± 0.005% URL/V when power supply changes in 10.5/16.5-55VDC
Mounting position effects
Apply to any position. Max value lower than 400Pa can be corrected by zero clearing function.
Vibration effects
According to GB/T 1827.3/IEC61298-3 tests, <0.1% URL
Output signal
4-20mA two wire. Customers can choose linear output or square root output. Digital process variables superimpose on 4-20mA signal and apply to any hosts with HART protocol.
Ambient temperature effects(Typical)
➣ Within the range -20-80 ℃ total impact
➣ ±(0.1+0.15TD)% URL
Insulation resistance
≥20M Ω@, 100VDC
Damping time
Total damping time constant: equal to the sum of damping |
Damping time of amplifer: 0-100S adjustable |
Diaphragm capsule (isolated diaphragm and silicon oil filling) |
Startup after power off: ≤6S |
Normal services after data recovery: ≤31S |
Weight
Net weight: about 1.87kg ( without mounting bracket and process connection adaptor )
Environment condition
Items | Operational condition |
Working | -40-85℃, integrated LCD display : -20- |
Storage temperature | -40-110℃, integrated LCD display: - 40-85℃ |
Media temperature | Silicon oil filling: -40-120℃ |
Working humidity | 5-100% RH@40℃ |
Protection class | IP67 |
Dangerous condition | ExiaIICT4(GYB16.1962X) * |
* Only for 4-20mA output |
Power supply
Item | Operating conditions |
Standard/flame proof | 10.5-55VDC |
HART protocol | 16.5-55VDC, communication load resistance 250Ω |
Load resistance | 0-2119 Ω for working condition, 250- 600Ω for HART protocol |
Transmission distance | <1000m |
Power consumption | ≤500mW@24VDC, 20.8mA |
Power supply and load requirements
EMC environment
NO. | Test items | Basic standards | Test conditions | Performance level |
1 | Radiated interference | GB/T 9254/CISPR22 | 30MHz-1000MHz | OK |
2 | Conducted interference (DC power port) | GB/T 9254/CISPR22 | 0.15MHz-30MHz | OK |
3 | Electrostatic discharge immunity test (ESD) | GB/T 17626.2/IEC61000-4-2 | 4kV(Contact ),8kV(Air) | B(Note2) |
4 | Immunity to radio frequency EM-fields | GB/T 17626.3/IEC61000-4-3 | 10V/m(80MHz-1GHz) | A(Note1) |
5 | Power frequency magnetic field Immunity | GB/T 17626.8/IEC61000-4-8 | 30A/m | A(Note1) |
6 | Electrical fast transient / Burst Immunity | GB/T 17626.4/IEC61000-4-4 | 2kV(5/50ns,100kHz) | B(Note2) |
7 | Surge immunity requirements | GB/T 17626.5/IEC61000-4-5 | 1kV(Line to line) 2kV(Line to ground) | B(Note2) |
8 | Immunity to conducted disturbances | GB/T 17626.6/IEC61000-4-6 | 3V(150kHz-80MHz) | A(Note1) |
(Note 1)Performance level A: The preformance within the limits of normal technical specifications. |
Specific menu
Transmission module type
Output signal | Local control | Remote control |
4-20mA+HART | LCD/3 buttons on body | HART |
4-20mA | LCD/3 buttons on body | - |
LCD display unit
Display | Details |
PV | Process variable shows on main screen, percentage and progress bar shows on secondary screen |
mA | Current shows on main screen, percentage and |
% | Percentage shows on main screen, percentage and progress bar shows on secondary screen |
Unit
Unit | Definition |
kPa | Kilopascal |
MPa | Megapascals |
bar | Bar |
psi | Pounds per square inch |
mmHg | Millimetre(s) of mercury@0℃ |
mmH2O | Millimeter of water@4℃ |
mH2O | Meter of water@4℃ |
inH2O | Inches of water@4℃ |
ftH2O | Feet of water@4℃ |
inHg | Inches of mercury@0℃ |
mHg | Meter mercury column@0℃ |
TORR | Torr |
mbar | Millibar |
g/cm2 | Gram per square centimeter |
kg/cm2 | Kilogram per square centimeter |
Pa | PA |
ATM | Standard atmospheric pressure |
mm | Millimeter(Note1) |
m | Meter(Note1) |
Note1: length unit need mark medium density |
Measuring menu set
Mark | State |
URV | Upper range value, 20mA |
LRV | Lower range value, 4mA |
Damping time
Units | Setting range |
S | 0-100 |
Analog output type
Parameters | Output type |
mA LINER | Linearity |
mA√ | Square root |
Alarm signal
Parameters | Alarm signal |
ALARM NO | None |
ALARM H | 20.8mA |
ALARM L | 3.8mA |
Fix output
Parameters | Fix output value |
FIX/C NO | None |
3.8000 | 3.8000mA |
4.0000 | 4.0000mA |
8.0000 | 8.0000mA |
12.000 | 12.000mA |
16.000 | 16.000mA |
20.000 | 20.000mA |
20.800 | 20.800mA |
Quick menu
Parameter | Instruction |
PV=0 | Set current output to zero value, used to correct the error cased by |
Zero adjustment | 4mA re-range with pressure |
Span adjustment | 20mA re-range with pressure |
Restore factory setting | Restore backup data when error |
PyroTech Instrument Pty Ltd
Head Office:
Address: 7 Yamma Street Sefton NSW 2164, Sydney Australia.
Phone:
61 2 9721 8668
Fax: 61 2 9738 9343
email:
sales@pyrotech.com
Website:
www.pyro-technology.com
China Office
Address: Room 401, Building 9, Jinbin Ruicheng, Jinbin Industrial Park, Wuqing District, Tianjin
Phone: ++86 15320153058
Fax: ++86 022-88984836
Email:
pyrotechcn@163.com
Website: www.pyro-technology.com
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