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Different Pressure transmitter

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Monosilicon differential pressure transmitter

PDT-201 monosilicon pressure transmitter is a high performance pressure transmitter with international leading technologymeticulously designed by Pyrotech company, using the world's most advanced monosilicon pressure sensor technology andpatent encapsulation technology.Monosilicon pressure sensor locates on the top of the metal body and stay away from themedium interface to realizes mechanical isolation and thermal isolation. Glass sintering sensor wire realizes high strengthelectical insulation of metal base and improves the capability of flexibility of electronic circuit and transient voltageresistance protection. All these original encapsulation technologies enable PDT-201 to easily cope with extreme chemicaloccasion and mechanical load, and own strong resistance to EMI, sufficient to respond to the most igorous industrial environment applications, which are the genuine invisible 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	±0.2% URL, 土0.5% URL

Field of application

Pressure, level, differential pressure, density, interface,flow

Measuring medium

Viscous, paste-like, adhesive, crystallising,particulatescontaining and contaminated media

Approvals

Measuring range and limit

Nominal value	Smallest calibratable span	Lower range limit(LRL)	Upper range limit(URL)	Static pressurelimit*	High pressure sideoverload limit*	Low pressure sideoverload limit*
40kPa	4kPa	-40kPa	40kPa	10MPa	10MPa	10MPa
250kPa	25kPa	-250kPa	250kPa	10MPa	10MPa	10MPa
1MPa	100kPa	-500kPa	1MPa	10MPa	10MPa	10MPa
Adjustrequirements: lower range value (LRV)and upper range value (URV)can be adjusted within the scope of the upper andlower range limit, when\| URV\|2\|LRV \| , needs\| URV\|2smallest calibratable span; when \|URV\|≤\|LRV ], needs\|LRV \|2smallest calibratable span
*Limit value of overpressure: depends on the pressure value of the parts with lowest pressure capacity

Standard speciﬁcations and reference conditions

Test standard: GB/T28474/IEC60770; Zero based-calibration span, silicon oil filling,316L stainless steelisolated diaphragm, 4-20mA analog output.

Performance speciﬁcations

The overall performance including but not limited to【Reference accuracy】,【Environment temperatureeffects) , 【Static pressure effects】 and other comprehensive error

Typical accuracy: +0.2%URL

Stability: 主0.2% URL/ 5 years

Reference accuracy

Including linearity(BFSL), hysteresis and repeatability.calibration temperature: 20 ℃土5 ℃
Linear output accuracy	TD≤10(Note1)	±0.2%URL	Nominal value: 40kPa, 250kPa 1MPa
	10<TD<20	±0.5TD% URL
Square root output accuracy is 1.5 times linear outputaccuracy
Note 1: TDis Turn down when \| URV \|≥\| LRV I, TD=URL/ \| URV \| when \| URV \|≤\| LRV l，TD=URL/ \| LRV \|

Ambient temperature effects

within the range - 20-80 ℃total impact

±(0.1+0.1TD)% URL

Static pressure effects

Effect on zero	±0.15TD % URL/4MPa
Effect on full scale	±0.2% URL/4MPa

Power supply eﬀects

When power supply voltage is within 10.5/16.5-55VDC,zero and span change should not more than ±0.005%URL/V

Mounting position eﬀects

lnstall error less than 400Pa, which can be corrected byPV=0 reset.

Vibration eﬀects

According to GB/T1827.3/IEC61298-3,<0.1%URL

Output signal

Two wire 4-20 mA output with digital communications,linear or square root output programmable, HART protocol is superimposed on the 4-20mA signal.

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 6.35 kg (Tri-clamp process connection,without mounting brackets)

Environment condition

Items	Operational condition
Working temperature	-40-85℃, integrated LCD display unit: -20- 70℃
Storage temperature	-40-110℃, integrated LCD display unit: - 40-85℃
Media temperature	With silicon oil: -40-120℃
Media temperature	With Neobee M-20:-10-180℃
Working humidity	5-100% RH@40℃
Protection class	IP67
Dangerous condition	ExiaIICT4(GYB16.1965X) * ExdIICT6(GYB16.1253X) *
*Please consult engineers for details

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	<1000meters
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

PPT-DT Series