Phone: 61 2 9721 8668

Email: sales@pyrotech.com

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PPT-A Series

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Absolute Pressure Transmitter

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PPT-A Series

Product serial number PPT-A

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Absolute Pressure Transmitter

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Product description

Monosilicon absolute pressure transmitter

PPT-A 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
eﬀects】and other comprehensive error

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 1MPa, 10MPa
	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
time of amplifer and sensor capsule

Damping time of amplifer: 0-100S adjustable

Diaphragm capsule (isolated diaphragm and silicon oil ﬁlling)
damping time: ≤0.2s

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 temperature	-40-85℃, integrated LCD display : -20- 70℃
Storage temperature	-40-110℃, integrated LCD display: - 40-85℃
Media temperature	Silicon oil filling: -40-120℃
Working humidity	5-100% RH@40℃
Protection class	IP66/IP67
Dangerous condition	ExiaIICT4...T6 ExdIICT4...T6
* 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 test	GB/T 17626.8/IEC61000-4-8	30A/m	A(Note1)
6	Electrical fast transient / Burst Immunity Test	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) (1.2us/50us)	B(Note2)
8	Immunity to conducted disturbances induced by radio frequency ﬁelds	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. (Note 2)Performance level B: Temporary reduction or loss of functionality or preformance, it can restore itself. The actual operating conditions, storage and data will not be changed.

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 mode	Details
PV	Process variable shows on main screen, percentage and progress bar shows on secondary screen
mA	Current shows on main screen, percentage and progress bar shows on secondary screen
%	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 static pressure and installation.
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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