Pressure transmitters

Category: Pressure transmitters

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A pressure transmitter (hereinafter - ПД) is a primary measurement device intended for continuous conversion of the measured value into an analog output signal. PTs are used in pressure gauges which, in their turn, are applied for the operation in the systems of automatic control, regulation and managing of technological processes in various industrial areas.

Manufactured in accordance to TC 4212-002-59541470-2009

Использование

Pressure

Measurement ranges:

pressure difference (ДД) — 1.6 kPa...16 MPa;
excess pressure (ДИ) - 40 kPa...25 MPa;
absolute pressure (ДА) — 10 kPA...16 MPa;
hydrostatic pressure (ДГ) — 40 kPa.. 250 kPa.

PTs use load cell transducers (sensors) on the basis of silicon resistive strain gauges on a sapphire membrane “Silicon on sapphire” (КНС)

A PT has several structural designs: flanged design, choke design with a liquid, choke design without a liquid, special design (choke, flanged).

Flanged pressure transmitters have a measurement&transducing body frame in the assembly with flanges. The flanges provide for a process connection on the thread K1/4 or through an installed valve (globe valve) block. The body frame choke has a thread M22X1.5.

The ПД choke design with a liquid is made as a single measurement and transducing body frame. The body frame consists of an isolating membrane protecting a load cell transducer from aggressive media. The measured value is transmitted from the membrane to a sensitive element through the liquid filled into the internal cavity. The body frame provides for a process connection on the thread M20X1.5 or through an installed valve (globe valve) block. The body frame choke has a thread M22X1.5.

The ПД choke design without a liquid is made as a single measurement and transducing body frame. The measured value is directly transmitted to a sensitive element. The body frame provides for a process connection on the thread M20X1.5 or through an installed valve (globe valve) block. The body frame choke has a thread M22X1.5.

The special version of pressure transmitters can be made in compliance with any of the aforementioned version different in terms of process connection and the thread on the choke.

ПД electric supply is implemented by D.C. of not more than 1.5 mA.

The output signal range is from 90 mV to 400 mV depending on the model.

The ПД ingress protection rating corresponds to the group IP65 under GOST 14254.

Internal closed PT cavities are filled with the liquid PDMS-6 under GOST 13032-77. For the version with code "-K" - liquid ПЭФ-70/110 under TC 6-02-1072-76.

ДА, ДИ transmitter product range

Measured value	Structural design	Model	Measuring limit (ML)		Permissible overload pressure	Weight, kg, not more
Measured value	Structural design	Model	kPa	MPa	MPa	Weight, kg, not more
Absolute pressure (ДА)	Flanged	2020	10	-	25	3,4
		2030	40	-	25
		2040	250	-	25
	Choke version without liquid	2041	600	-	1	0,4
		2051	-	2,5	4
		2056	-	6	9
		2061	-	16	25
	Choke version with liquid	2040м5	600	-	1	0,5
		2050м5	-	2,5	4
		2056м5	-	6	9
		2060м5	-	16	25
Excess pressure (ДИ)	Choke version without liquid	2131	100	-	0,2	0,4
		2141	600	-	1
		2151	-	2,5	4
		2156	-	6	9
		2161	-	16	25
		2171	-	100	110
	Choke version with liquid	2140м5	600	-	1	0,5
		2150м5	-	2,5	4
		2156м5	-	6	9
		2160м5	-	16	25
	Special choke version with liquid	2140м	600	-	1	0,4
		2150м	-	2,5	4
		2156м	-	6	9
		2160м	-	16	25
		2166м	-	100	110
		2152	-	2,5	4	1,4
		2162	-	16	25
		2172	-	60	70
		2173	-	60	70	2,2

ДД, ДГ transmitter product range

Measured value	Structural design	Mode	Measuring limit		Maximum permissible operating excess pressure, MPa	Weight, kg, not more
Measured value	Structural design	Mode	kPa	MPa	Maximum permissible operating excess pressure, MPa	Weight, kg, not more
Pressure difference (ДД)	Flanged	2410	1,6	-	4	10
		2412	2,5	-	6	5
		2414	4,0	-	6	5
		2420	10	-	10	4,6
		2430	40	-	25
		2434	40	-	40
		2440	250	-	25
		2444	250	-	40
		2450	-	1,6	25
		2450	-	2,5*	25
		2460	-	16	25
Hydrostatic pressure (ДГ)	Special flanged	2530	40	-	4	8
Hydrostatic pressure (ДГ)	Special flanged	2540	250	-	4	8
— — temperature range equal to 70 °С (for example, temperature range from minus 20 °С up to plus 50 °С or from 0 °С up to plus 70 °С).

Metrological characteristics and output signal characteristics

Parameter	Structural design	Value
Output signal range at the D.C. power supply not less than 1.5 mA, mV	choke version with a ML 100 kPa	90...200
	choke version with a ML 600 kPa	150...400
	all others	180...400
Resistance of power supply circuits and output signal, kOm	choke version	3,5...4,85
Resistance of power supply circuits and output signal, kOm	flanged version	4,5 ± 0,35
Non-linearity of output signal, %, not more	choke version	0,5
Non-linearity of output signal, %, not more	flanged version	1,0
Parameter	Model	Accuracy code
Parameter	Model	А0	А	А1	В
Output signal variation, %, not more	all	0,1			0,2
Change of U₀ and U_Д, caused by the change of T for every 10 °С, %, not more	all	1
Change of U₀ and U_Дof ДД и ДГ transmitters, flanged version, caused by the change of P_изб на 1 МPA in the measurement range P_изб, %, not more	2410	0,125	0,2
	2412, 2414	0,12			0,2
	2420	0,04		0,08
	2430, 2434, 2440, 2444	0,012		0,025	0,025
	2450, 2460	0,012		0,025	0,025
	2530, 2540	0,08
Note: U₀ — initial output signal value; T — ambient temperature; U_Д — output signal range; P_изб — bilateral excess pressure.

Models 2412, 2414

Models 2420, 2430, 2434, 2440, 2444, 2450, 2460

Model 2410

Models 2020, 2030, 2040

Models 2031, 2041, 2051, 2056, 2061, 2131, 2141, 2151, 2156, 2161, 2171

Models 2040м5, 2050м5, 2056м5, 2060м5, 2140м5, 2150м5, 2156м5, 2160м5

Modelsи 2040м5, 2050м5, 2056м5, 2060м5, 2140м5, 2150м5, 2156м5, 2160м5

Models 2140м, 2150м, 2156м, 2160м, 2166м

Models 2152, 2162, 2172

Model 2173

Models 2530, 2540

Materials contacting with operating media

Material code	Material			Applicability
Material code	membranes	body frame parts contacting with an operating fluid	of sealings as a part of a body frame*	Applicability
02	Alloy 36НХТЮ	Steel 12Х18Н10Т, replacer — 12Х18Н9Т, 08Х18Н10Т	rubber ring НО-68-1 (or 7-В-14); for the version with the code "-К" — ИРП-1136	for all structural designs
06	Alloy 06ХН28МДТ	Alloy 06ХН28МДТ, replacer — 10Х17Н13М2Т	-	only for the choke version with liquid
09	Titanium alloy	Titanium alloy	-	only for the choke version without liquid
11	Titanium alloy	Steel 12Х18Н10Т, replacer — 12Х18Н9Т, 08Х18Н10Т	-	only for the choke version without liquid
*— only for the flanged version.

Parameter	Value
Average service life providing the measured medium is non-aggressive to applicable materials, years, not less	16
Mean time to failure, hours, not less	250000
The quantity of withstand cycles of alternating pressure or exhaustion changing by not more than 50% of the transmitter change limit	20000
The transmitters are resistant towards ambient temperatures in the range, °С	-50…+90
Ambient temperatures operating range, °С	-40…+80
Ambient temperatures operating range, °С	-25…+80 — for the versions with the code "-К"

Warranty liabilities

Parameter	Value
Warranty operating life, months	36 months since the commissioning date but no more than 42 months since the date of manufacture

Contents of delivery

Name	Number
Pressure transmitter	1
Data Sheet	1

Designations at the order

ПД	2420	А	02	К	ТУ 4212-002-59541470-2009
1	2	3	4	5	6

Name.
Model.
Accuracy code (according to the table "Metrological and output signal characteristics").
Code of materials contacting with operating media.
The code "K" is entered at the order of a transmitter for the operation with the gas oxygen and oxygen-containing gaseous mixtures.
Technical conditions.

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