SITRANS P300 for gauge and absolute pressure производства Siemens

The SITRANS P300 is a digital pressure transmitter for relative and absolute pressure. The conventional thread versions are available as process connections, as are flush-mounted versions. A large number of the flush-mounted versions are suitable for food and pharmaceutical applications, and satisfy the EHEDG and 3A hygiene requirements.

The output signal is a load-independent direct current from 4 to 20 mA or a PROFIBUS PA or FOUNDATION Fieldbus signal, which is linearly proportional to the input pressure. Communication is via HART protocol or PROFIBUS PA or FOUNDATION Fieldbus interface. The basic settings of the pressure transmitter can be made easily on-site by means of three buttons.

The SITRANS P300 has a single-chamber stainless steel casing. The pressure transmitter is approved with "intrinsically safe" type of protection. It can be used in zone 1 or zone 0.

The pressure transmitter is available in versions for gauge pressure and for absolute pressure. The output signal is always a load-independent direct current from 4 to 20 mA or a PROFIBUS PA or FOUNDATION Fieldbussignal, which is linearly proportional to the input pressure. The pressure transmitter measures aggressive, non-aggressive and hazardous gases, as well as vapors and liquids.

It can be used for the following measurement types:

Gauge pressure
Absolute pressure

With appropriate parameter settings, it can also be used for the following additional measurement types:

Level
Volume
Mass

The "intrinsically-safe" EEx version of the transmitter can be installed in hazardous areas (zone 1). The transmitters are provided with an EC type examination certificate and comply with the respective harmonized European standards of ATEX.

Gauge pressure

This variant measures aggressive, non-aggressive and hazardous gases, vapors and liquids.

The smallest span is 0.01 bar g (0.15 psi g), the largest is 400 bar g (5802 psi g).

Level

With appropriate parameter settings, the gauge pressure variant measures the level of aggressive, non-aggressive and hazardous liquids.

For measuring the level in an open container you require one device; for measuring the level in a closed container, you require two devices and a process control system.

Absolute pressure

This variant measures the absolute pressure of aggressive, non-aggressive and hazardous gases, vapors and liquids.

The smallest span is 0.008 bar a (0.12 psi a), the largest is 30 bar a (435 psi a)).

High quality and service life
High reliability even under extreme chemical and mechanical loads
Extensive diagnosis and simulation functions
Minimum conformity error
Small long-term drift
Wetted parts made of high-grade materials (such as stainless steel, Hastelloy)
Measuring range 0.008 bar to 400 bar (0.1 psi to 5802 psi)
High measuring accuracy
Parameterization by means of control keys and HART and/or PROFIBUS PA or FOUNDATION Fieldbus

SITRANS P300 for gauge and absolute pressure
	HART			PROFIBUS PA and FOUNDATION Fieldbus
Gauge pressure input
Measured variable	Gauge pressure
Spans (infinitely adjustable) or nominal measuring range and max. permissible test pressure	Span (min. ... max.)	Max. perm. test pressure		Nominal measuring range	Max. perm. test pressure
	0.01 ... 1 bar g (0.15 ... 14.5 psi g)	6 bar g (87 psi g)		1 bar g (14.5 psi g)	6 bar g (87 psi g)
	0.04 ... 4 bar g (0.58 ... 58 psi g)	10 bar g (145 psi g)		4 bar g (58 psi g)	10 bar g (145 psi g)
	0.16 ... 16 bar g (2.3 ... 232 psi g)	32 bar g (464 psi g)		16 bar g (232 psi g)	32 bar g (464 psi g)
	0.6 ... 63 bar g (9.1 ... 914 psi g)	100 bar g (1450 psi g)		63 bar g (914 psi g)	100 bar g (1450 psi g)
	1.6 ... 160 bar g (23.2 ... 2321 psi g)	250 bar g (3626 psi g)		160 bar g (2321 psi g)	250 bar g (3626 psi g)
	4.0 ... 400 bar g (58 ... 5802 psi g)	600 bar g (8700 psi g)		400 bar g (5802 psi g)	600 bar g (8700 psi g)
	Depending on the process connection, the span may differ from these values			Depending on the process connection, the nominal measuring range may differ from these values
Lower measuring limit
Measuring cell with silicone oil	30 mbar a (0.44 psi a)
Upper measuring limit
Measuring cell with silicone oil	100% of max. span			100 % of the max. nominal measuring range
Absolute pressure input
Measured variable	Absolute pressure
Spans (infinitely adjustable) or nominal measuring range and max. permissible test pressure	Span (min. ... max.)	Max. perm. test pressure		Nominal measuring range	Max. perm. test pressure
	8 ... 250 mbar a (0.12 ... 3.63 psi a)	6 bar a (87 psi a)		250 mbar a (3.63 psi a)	6 bar a (87 psi a)
	43 ... 1300 mbar a (0.62 ... 18.9 psi a)	10 bar a (145 psi a)		1.30 bar a (19 psi a)	10 bar a (145 psi a)
	0.16 ... 5 bar a (2.3 ... 73 psi a)	30 bar a (435 psi a)		5 bar a (73 psi a)	30 bar a (435 psi a)
	1 ... 30 bar a (14.5 ... 435 psi a)	100 bar a (1450 psi a)		30 bar a (435 psi a)	100 bar a (1450 psi a)
Lower measuring limit
Measuring cell with silicone oil	0 mbar a (0 psi a)
Upper measuring limit
Measuring cell with silicone oil	100% of max. span			100 % of the max. nominal measuring range
Input of gauge pressure, with flush-mounted diaphragm
Measured variable	Gauge pressure, flush-mounted
Spans (infinitely adjustable) or nominal measuring range and max. permissible test pressure	Span (min. ... max.)	Max. perm. test pressure		Nominal measuring range	Max. perm. test pressure
	0,01 ... 1 bar g (0.15 ... 14.5 psi g)	6 bar g (87 psi g)		1 bar g (14.5 psi g)	6 bar g (87 psi g)
	0,04 ... 4 bar g (0.58 ... 58 psi g)	10 bar g (145 psi g)		4 bar g (58 psi g)	10 bar g (145 psi g)
	0,16 ... 16 bar g (2.32 ... 232 psi g)	32 bar g (464 psi g)		16 bar g (232 psi g)	32 bar g (464 psi g)
	0,6 ... 63 bar g (9.14 ... 914 psi g)	100 bar g (1450 psi g)		63 bar g (914 psi g)	100 bar g (1450 psi g)
Lower measuring limit	100 mbar a (1.45 psi a)
Upper measuring limit
Measuring cell with silicone oil	100% of max. span			100 % of the max. nominal measuring range
Input of absolute pressure, with flush-mounted diaphragm
Measured variable	Absolute pressure, flush-mounted
Spans (infinitely adjustable) or nominal measuring range and max. permissible test pressure	Span (min. ... max.)	Max. perm. test pressure		Nominal measuring range	Max. perm. test pressure
	43 ... 1300 mbar a (0.62 ... 18.85 psi a)	10 bar a (145 psi a)		1300 mbar a (18.85 psi a)	10 bar a (145 psi a)
	0.16 ... 5 bar a (2.32 ... 72.5 psi a)	30 bar a (435 psi a)		5 bar a (72.5 psi a)	30 bar a (435 psi a)
	1 ... 30 bar a (14.5 ... 435 psi a)	100 bar a (1450 psi a)		30 bar a (435 psi a)	100 bar a (1450 psi a)
	Depending on the process connection, the span may differ from these values			Depending on the process connection, the nominal measuring range may differ from these values
Lower measuring limit	0 bar a (0 psi a)
Upper measuring limit
Measuring cell with silicone oil	100% of max. span			100 % of the max. nominal measuring range
Output
Output signal	4 ... 20 mA			Digital PROFIBUS PA signal
Physical bus	-			IEC 61158-2
Protection against polarity reversal	Protected against short-circuit and polarity reversal. Each connection against the other with max. supply voltage.
Electrical damping (step width 0.1 s)	Set to 2 s (0 ... 100 s)
Measuring accuracy	According to IEC 60770-1
Reference conditions (All error data refer always refer to the set span)	Rising characteristic curve, start-of-scale value 0 bar, stainless steel seal diaphragm, measuring cell with silicone oil, room temperature 25 °C (77 °F), span ratio (r = max. span / set span)
Error in measurement at limit setting incl. hysteresis and reproducibility
	Gauge pressure	Absolute pressure	Absolute pressure, flush-mounted	Gauge pressure	Absolute pressure	Absolute pressure, flush-mounted
Linear characteristic				≤ 0,075 %	≤ 0,1 %	≤ 0,2 %
r ≤ 10	≤ (0.0029 · r + 0.071) %	≤ 0,1 %	≤ 0,2 %
10 < r ≤ 30	≤ (0.0045 · r + 0.071) %	≤ 0,2 %	≤ 0,4 %
30 < r ≤ 100	≤ (0.005 · r + 0.05) %	-	-
Step response time T₆₃	approx. 0.2 NO
Long-term stability at ± 30 °C (± 54 °F)	≤ (0.25 · r) %/5 years	≤ (0.1 · r) %/year		≤ 0.25 %/5 years	≤ 0.1 %/year
Influence of ambient temperature
at -10 ... +60 °C (14 ... 140 °F)	≤ (0.08· r + 0.1) %		≤ (0.2 · r + 0.3) %	≤ 0,3 %		≤ 0,5 %
	Conversion of temperature error per 28 °C. Valid for temperature range -3 ... +53 °C < (0.064 ^. r + 0.08) % / 28 °C (50 °F).
at -40 ... -10 °C and +60 ... +85 °C (-40 ... 14 °F and 140 ... 185 °F)	≤ (0.1 · r + 0.15) %/10 K		≤ (0.2 · r + 0.3) %/10 K	≤ 0.25 %/10 K		≤ 0.5 %/10 K
Influence of the medium temperature (only with flush-mounted diaphragm)
Temperature difference between medium temperature and ambient temperature	3 mbar/10 K (0.04 psi/10 K)

Rated conditions
Installation conditions
Ambient temperature	Observe the temperature class in areas subject to explosion hazard.
Measuring cell with silicone oil	-40 ... +85 °C (-40 ... +185 °F)
Measuring cell with Neobee oil (FDA-compliant, with flush-mounted diaphragm)	-10 ... +85 °C (14 ... +185 °F)
Measuring cell with inert liquid (not with flush-mounted diaphragm)	-20 ... +85 °C (-4 ... +185 °F)
Display readable	-30 ... +85 °C (-22 ... +185 °F)
Storage temperature	-50 ... +85 °C (-58 ... +185 °F) (for Neobee: -20 ... +85 °C (-4 ... +185 °F))
Climatic class
Condensation	Relative humidity 0 ... 100 % Condensation permissible, suitable for use in the tropics
Degree of protection acc. to EN 60529	IP65, IP68, NEMA X, enclosure cleaning, resistant to lyes, steam to 150 °C (302 °F)
Electromagnetic Compatibility
Emitted interference and interference immunity	Acc. to EN 61326 and NAMUR NE 21
Medium conditions
Temperature of medium
Measuring cell with silicone oil	-40 ... +100 °C (-40 ... +212 °F)
Measuring cell with silicone oil (with flush-mounted diaphragm)	-40 ... +150 °C (-40 ... +302 °F)
Measuring cell with Neobee oil (FDA-compliant, with flush-mounted diaphragm)	-10 ... +150 °C (-14 ... +302 °F)
Measuring cell with silicone oil, with temperature decoupler (only with flush-mounted diaphragm)	-40 ... +200 °C (-40 ... +392 °F)
Measuring cell with inert liquid	-20 ... +100 °C (-4 ... +212 °F)
Measuring cell with high-temperature oil	-10 ... +250 °C (14 ... 482 °F)
Design (standard version)
Weight (without options)	Approx. 800 g (1.8 lb)
Enclosure material	Stainless steel, mat. no. 1.4301/304
Material of parts in contact with the medium
Connection shank	Stainless steel, mat. no. 1.4404/316L or Hastelloy C276, mat. no. 2.4819
Oval flange	Stainless steel, mat. no. 1.4404/316L
Seal diaphragm	Stainless steel, mat. no. 1.4404/316L or Hastelloy C276, mat. no. 2.4819
Measuring cell filling	Silicone oil Inert filling liquid
Process connection	G½B to EN 837-1 Female thread ½-14 NPT Oval flange PN 160 (MAWP 2320 psi) with fastening thread: ⁷â„₁₆-20 UNF to IEC 61518 M10 as per DIN 19213
Design (version with flush-mounted diaphragm)
Weight (without options)	approx. 1 ... 13 kg (2.2 ... 29 lb)
Enclosure material	Stainless steel, mat. no. 1.4301/304
Material of parts in contact with the medium
Process connection	Stainless steel, mat. no. 1.4404/316L
Seal diaphragm	Stainless steel, mat. no. 1.4404/316L
Measuring cell filling	Silicone oil Inert filling liquid FDA compliant fill fluid (Neobee oil)
Process connection	Flanges as per EN and ASME F&B and pharmaceutical flanges
Surface quality touched-by-media	R_a-values ≤ 0.8 µm (32 µ-inch)/welds R_a) ≤ 1.6 µm (64 µ-inch) (Process connections_{according to 3A; Ra}-values ≤ 0.8 µm (32 µ-inch)/welds R_a) ≤ 0.8 µm (32 µ-inch)
Power supply U_H
Terminal voltage on transmitter	10.5 ... 42 V DC for intrinsically safe operation: 10.5 ... 30 V DC	Supplied through bus
Separate power supply	-	Not necessary
Bus voltage
Without EEx	-	9 ... 32 V
With intrinsically-safe operation	-	9 ... 24 V
Current consumption
Max. basic current	-	12.5 mA
Start-up current ≤ basic current	-	Yes
Max. fault current in the event of a fault	-	15.5 mA
Fault disconnection electronics (FDE)	-	Available
Certificates and approvals
Classification according to PED 97/23/EC	For gases of fluid group 1 and liquids of fluid group 1; complies with requirements of Article 3, paragraph 3 (sound engineering practice)
Water, waste water	In preparation
Explosion protection
Intrinsic safety "i"	PTB 05 ATEX 2048
Marking	Ex II 1/2 G EEx ia/ib IIB/IIC T4, T5, T6
Permissible ambient temperature
Temperature class T4	-40 ... +85 °C (-40 ... +185 °F)
Temperature class T5	-40 ... +70 °C (-40 ... +158 °F)
Temperature class T6	-40 ... +60 °C (-40 ... +140 °F)
Connection	To certified intrinsically-safe circuits with peak values: U_i = 30 V, I_i = 100 mA, P_i = 750 mW, R_i = 300 Ω	To certified intrinsically-safe circuits with peak values: FISCO supply unit: U_i = 17.5 V, I_i = 380 mA, P_i = 5.32 W Linear barrier: U_i = 24 V, I_i = 250 mA, P_i = 1.2 W
Effective inner capacitance	C_i = 6 nF	C_i = 1.1 nF
Effective internal inductance	L_i = 0.4 mH	L_i ≤ 7 μH
Explosion protection to FM for USA and Canada (cFM_US)
Identification (DIP) or (IS); (NI)	Certificate of Compliance 3025099 CL I, DIV 1, GP ABCD T4 ... T6; CL II, DIV 1, GP EFG; CL III; CL I, ZN 0/1 AEx ia IIC T4 ... T6; CL I, DIV 2, GP ABCD T4 ... T6; CL II, DIV 2, GP FG; CL III
Identification (DIP) or (IS)	Certificate of Compliance 3025099C CL I, DIV 1, GP ABCD T4 ... T6; CL II, DIV 1, GP EFG; CL III; Ex ia IIC 4 ... T6; CL I, DIV 2, GP ABCD T4 ... T6; CL II, DIV 2, GP FG; CL III
Dust explosion protection for zone 20/21/22	PTB 05 ATEX 2048
Marking	Ex II 1D Ex ia D 20 T 120 °C Ex II 2D Ex ib D 21 T 120 °C Ex II 3D Ex ib D 21 T 120 °C
Permissible ambient temperature
Temperature class T4	-40 ... +85 °C (-40 ... +185 °F) (in the case of mineral glass windows only -20 ... +85 °C (-4 ... +185 °F))
Temperature class T5	-40 ... +70 °C (-40 ... +158 °F) (in the case of mineral glass windows only -20 ... +70 °C (-4 ... +158 °F))
Temperature class T6	-40 ... +60 °C (-40 ... +140 °F) (in the case of mineral glass windows only -20 ... +60 °C (-4 ... +140 °F))
Connection	To certified intrinsically-safe circuits with peak values: U_i = 30 V, Ii = 100 mA, Pi = 750 mW	To certified intrinsically-safe circuits with peak values: U_i = 24 V, Ii = 380 mA, P_i = 5.32 W
Effective inner capacitance	C_i = 6 nF	C_i = 5 nF
Effective internal inductance	L_i ≤ 0.4 μH	L_i = 10 μH
Type of protection Ex nA/nL/ic (Zone 2)	PTB 05 ATEX 2048
Marking	II 2/3 G Ex ic IIB/IIC T4/T5/T6 II 2/3 G Ex nA T4/T5/T6 II 2/3 G Ex nL IIB/IIC T4/T5/T6
Permissible ambient temperature
Temperature class T4	-40 ... +85 °C (-40 ... +185 °F) (in the case of mineral glass windows only -20 ... +85 °C (-4 ... +185 °F))
Temperature class T5	-40 ... +70 °C (-40 ... +158 °F) (in the case of mineral glass windows only -20 ... +70 °C (-4 ... +158 °F))
Temperature class T6	-40 ... +60 °C (-40 ... +140 °F) (in the case of mineral glass windows only -20 ... +60 °C (-4 ... +140 °F))
Ex nA connection	To certified intrinsically-safe circuits with peak values: U_m = 45 V	To certified intrinsically-safe circuits with peak values: U_m = 32 V
Ex ic/nL connection	To certified intrinsically-safe circuits with peak values: U_i = 45 V	To certified intrinsically-safe circuits with peak values: U_i = 32 V
Effective inner capacitance	C_i = 6 nF	C_i = 5 nF
Effective internal inductance	L_i = 0.4 mH	L_i = 20 μH

HART communication
HART communication	230 ... 1100 Ω
Protocol	HART Version 5.x
Software for computer	SIMATIC PDM

PROFIBUS PA communication
Simultaneous communication with master class 2 (max.)	4
The address can be set using	Configuration tool or local operation (standard setting Address 126)
Cyclic data usage
Output byte	5 (one measured value) or 10 (two measured values)
Input byte	0, 1 or 2 (totalizer mode and reset function for dosing)
Internal preprocessing
Device profile	PROFIBUS PA Profile for Process Control Devices Version 3.0, Class B
Function blocks	2
Analog input
Adaptation to customer-specific process variables	Yes, linearly rising or falling characteristic
Electrical damping adjustable	0 … 100 s
Simulation function	Input /Output
Failure function	parameterizable (last good value, substitute value, incorrect value)
Limit monitoring	Yes, one upper and lower warning limit and one alarm limit respectively
Register (totalizer)	Can be reset, preset, optional direction of counting, simulation function of register output
Failure mode	parameterizable (summation with last good value, continuous summation, summation with incorrect value)
Limit monitoring	One upper and lower warning limit and one alarm limit respectively
Physical block	1
Transducer blocks	2
Pressure transducer block
Can be calibrated by applying two pressures	Yes
Monitoring of sensor limits	Yes
Specification of a container characteristic with	Max. 30 nodes
Simulation function for measured pressure value and sensor temperature	Constant value or over parameterizable ramp function

FOUNDATION Fieldbus communication
Function blocks	3 function blocks analog input, 1 function block PID
Analog input
Adaptation to customer-specific process variables	Yes, linearly rising or falling characteristic
Electrical damping adjustable	0 & 100 s
Simulation function	Output/input (can be locked within the device with a bridge)
Failure mode	parameterizable (last good value, substitute value, incorrect value)
Limit monitoring	Yes, one upper and lower warning limit and one alarm limit respectively
Square-rooted characteristic for flow measurement	Yes
PID	Standard FOUNDATION Fieldbus function block
Physical block	1 resource block
Transducer blocks	1 transducer block Pressure with calibration, 1 transducer block LCD
Pressure transducer block
Can be calibrated by applying two pressures	Yes
Monitoring of sensor limits	Yes
Simulation function: Measured pressure value, sensor temperature and electronics temperature	Constant value or over parameterizable ramp function

The device comprises:

electronics
Housing
Measuring cell

Perspective view of SITRANS P300

The housing has a screw-on cover (5) and, depending on the version, is with or without an inspection window. The electrical terminal housing, the buttons for operation of the device are located under this cover and, depending on the version, the digital display. The connections for the auxiliary power U_H and the shield are in the terminal housing. The cable gland is mounted on the side of the housing. The measuring cell with the process connection (2) is located on the bottom of the housing. The measuring cell with the process connection may differ from the one shown in the diagram, depending on the device version.

Example of attached measuring points sign

Operation of electronics with HART communication

Function diagram of electronics

The input pressure is converted into an electrical signal by the sensor (1). This signal is amplified by the measuring amplifier (2) and digitalized in an analog-to-digital converter (3). The digital signal is analyzed in a microcontroller (4) and corrected according to linearity and thermal characteristics. In a digital-to-analog converter (5) it is then converted into the output current of 4 to 20 mA. A diode circuit provides reverse polarity protection. You can make an uninterrupted current measurement with a low-ohm ammeter at the connection (10). The data specific to the measuring cell, the electronic data and parameter settings are stored in two non-volatile memories (6). The first memory is linked to the measuring cell, the second to the electronics.

The buttons (8) can be used to call up individual functions, so-called modes. If you have a device with a display (9), you can use this to track mode settings and other messages. The basic mode settings can be changed with a computer via the HART modem (7).

Operation of electronics with PROFIBUS PA communication

Function diagram of electronics

The input pressure is converted into an electrical signal by the sensor (1). This signal is amplified by the measuring amplifier (2) and digitalized in an analog-to-digital converter (3). The digital signal is analyzed in a microcontroller (4) and corrected according to linearity and thermal characteristics. It is then made available at the PROFIBUS PA over an electrically isolated PROFIBUS PA interface (7). The data specific to the measuring cell, the electronic data and parameter settings are stored in two non-volatile memories (6). The first memory is linked to the measuring cell, the second to the electronics.

Operation of electronics with FOUNDATION Fieldbus communication

Function diagram of electronics

The bridge output voltage created by the sensor (1, Figure "Function diagram of electronics") is amplified by the measuring amplifier (2) and digitized in the analog-to-digital converter (3). The digital information is evaluated in the microcontroller, its linearity and temperature response corrected, and provided on the FOUNDATION Fieldbus through an electrically isolated FOUNDATION Fieldbus interface (7).

The data specific to the measuring cell, the electronics data, and the parameter data are stored in the two non-volatile memories (6). The one memory is coupled to the measuring cell, the other to the electronics. As the result of this modular design, the electronics and the measuring cell can be replaced separately from each other.

Using the three input buttons (8) you can parameterize the pressure transmitter directly at the measuring point. The input buttons can also be used to control the view of the results, the error messages and the operating modes on the display (9).

The results with status values and diagnostic values are transferred by cyclic data transmission on the FOUNDATION Fieldbus. Parameterization data and error messages are transferred by acyclic data transmission. Special software such as National Instruments Configurator is required for this.

Mode of operation of the measuring cells

The process connections available include the following:

G½
½-14 NPT
Flush-mounted diaphragm:
- Flanges to EN
- Flanges to ASME
- NuG and pharmaceutical connections

Measuring cell for gauge pressure

Measuring cell for gauge pressure, function diagram

The input pressure (pe) is transferred to the gauge pressure sensor (6) via the seal diaphragm (4) and the filling liquid (5), displacing its measuring diaphragm. The displacement changes the resistance value of the four piezo resistors in the measuring diaphragm in a bridge circuit. The change in the resistance causes a bridge output voltage proportional to the input pressure.

Transmitters with spans ≤ 63 bar ( ≤ 926.1 psi) measure the input pressure compared to atmospheric, transmitters with spans of ≥ 160 bar (≥ 2352 psi) compared to a vacuum.

Measuring cell for absolute pressure

Measuring cell for absolute pressure, function diagram

The input pressure (pe) is transferred to the absolute pressure sensor (5) via the seal diaphragm (3) and the filling liquid (4), displacing its measuring diaphragm. The displacement changes the resistance value of the four piezo resistors in the measuring diaphragm in a bridge circuit. The change in the resistance causes a bridge output voltage proportional to the input pressure.

Measuring cell for gauge pressure, flush-mounted diaphragm

Measuring cell for gauge pressure, flush-mounted diaphragm, function diagram

Transmitters with spans ≤ 63 bar ( ≤ 926.1 psi) measure the input pressure compared to atmospheric, transmitters with spans of ≥ 160 bar (≥ 2352 psi) compared to a vacuum.

Measuring cell for absolute pressure, flush-mounted diaphragm

Measuring cell for absolute pressure, flush-mounted diaphragm, function diagram

Parameterization

Depending on the version, there are a range of options for parameterizing the pressure transmitter and for setting or scanning the parameters.

Parameterization using the input buttons (local operation)

With the input buttons you can easily set the most important parameters without any additional equipment.

Parameterization using HART communication

Parameterization using HART communication is performed with a HART Communicator or a PC.

Communication between a HART Communicator and a pressure transmitter

When parameterizing with the HART Communicator, the connection is made directly to the 2-wire cable.

HART communication between a PC communicator and a pressure transmitter

When parameterizing with a PC, the connection is made through a HART modem.

The signals needed for communication in conformity with the HART 5.x or 6.x protocols are superimposed on the output current using the Frequency Shift Keying (FSK) method.

Adjustable parameters on SITRANS P300 with HART communication

Parameters	Input buttons	HART communication
Start of scale	x	x
Full-scale value	x	x
Electrical damping	x	x
Start-of-scale value without application of a pressure ("Blind setting")	x	x
Full-scale value without application of a pressure ("Blind setting")	x	x
Zero adjustment	x	x
current transmitter	x	x
Fault current	x	x
Disabling of buttons, write protection	x	x 1)
Type of dimension and actual dimension	x	x
Input of characteristic		x
Freely-programmable LCD		x
Diagnostic functions		x

1) Cancel apart from write protection

Diagnostic functions for SITRANS P300 with HART communication

Zero correction display
Event counter
Limit transmitter
Saturation alarm
Slave pointer
Simulation functions
Maintenance timer

Available physical units of display for SITRANS P300 with HART communication

Table style: Technical specifications 2

Physical variable	Physical dimensions
Pressure (setting can also be made in the factory)	Pa, MPa, kPa, bar, mbar, torr, atm, psi, g/cm², kg/cm², inH₂O, inH₂O (4 °C), mmH₂O, ftH₂O (20 °C), inHg, mmHg
Level (height data)	m, cm, mm, ft, in
Volume	m³, dm³, hl, yd³, ft³, in³, US gallon, lmp. gallon, bushel, barrel, barrel liquid
Mass	g, kg, t, lb, Ston, Lton, oz
Temperature	K, °C, °F, °R
Miscellaneous	%, mA

Parameterization through PROFIBUS PA interface

Fully digital communication through PROFIBUS PA, profile 3.0, is particularly user-friendly. The PROFIBUS connects the SITRANS P30 0 PA to a process control system, e. g. SIMATIC PSC 7. Communication is possible even in a potentially explosive environment.

For parameterization through PROFIBUS you need suitable software, e. g. SIMATIC PDM (Process Device Manager)

Parameterization through FOUNDATION Fieldbus interface

Fully digital communication through FOUNDATION Fieldbus is particularly user-friendly. Through the FOUNDATION Fieldbus the P300 is connected to a process control system. Communication is possible even in a potentially explosive environment.

For parameterization through the FOUNDATION Fieldbus you need suitable software, e. g. National Instruments Configurator.

Adjustable parameters for SITRANS P300 PA and FOUNDATION Fieldbus

Adjustable parameters	Input buttons	PROFIBUS PA and FOUNDATION Fieldbus interface
Electrical damping	x	x
Zero adjustment (correction of position)	x	x
Buttons and/or function disabling	x	x
Source of measured-value display	x	x
Physical dimension of display	x	x
Position of decimal point	x	x
Bus address	x	x
Adjustment of characteristic	x	x
Input of characteristic		x
Freely-programmable LCD		x
Diagnostic functions		x

Diagnostic functions for SITRANS P300 PA and FOUNDATION Fieldbus

Event counter
Slave pointer
Maintenance timer
Simulation functions
Display of zero correction
Limit transmitter
Saturation alarm

Physical dimensions available for the display

Physical variable	Physical dimensions
Pressure (setting can also be made in the factory)	Mpa, kPa, Pa, bar, mbar, torr, atm, psi, g/cm², kg/cm², mmH₂O, mmH₂O (4 °C), inH₂O, inH₂0 (4 °C), ftH₂O (20 °C), mmHg, inHg
Level (height data)	m, cm, mm, ft, in, yd
Mass	g, kg, t, lb, Ston, Lton, oz
Volume	m³, dm³, hl, yd³, ft³, in³, US gallon, lmp. gallon, bushel, barrel, barrel liquid
volume flow	m³/s, m³/min, m³/h, m³/d, l/s, l/min, l/h, l/ d, Ml/d, ft³/s, ft³/min, ft³/h, ft³/d, US gallon/s, US gallon/min, US gallon/h, US gallon/d, bbl/s, bbl/min, bbl/h, bbl/d
Mass flow	g/s, g/min, g/h, g/d, kg/s, kg/min, kg/h, kg/d, t/s, t/min, t/h, /t/d, lb/s, lb/min, lb/h, lb/d, STon/s, STon/min, STon/h, STon/d, LTon/s, LTon/min, LTon/h, LTon/d
Total mass flow	t, kg, g, lb, oz, LTon, STon
Temperature	K, °C, °F, °R
Miscellaneous	%

Hygiene version

In the case of the SITRANS P300 with 7MF812.-... flush-mounted diaphragm, selected connections comply with the requirements of the EHEDG or 3A. You will find further details in the order form. Please note in particular that the seal materials used must comply with the requirements of 3A. Similarly, the filling liquids used must be FDA-compliant.

SITRANS P300, with oval flange, dimensions in mm (inch)

SITRANS P300, process connection M20 x 1.5, with mounted mounting bracket, dimensions in mm (inch)

SITRANS P300, flush-mounted, dimensions in mm (inch)

The diagram shows a SITRANS P300 with an example of a flange. In this drawing the height is subdivided into H₁ and H₂.

H₁ = Height of the SITRANS P300 up to a defined cross-section

H₂ = Height of the flange up to this defined cross-section

Only the height H₂ is indicated in the dimensions of the flanges.

Flanges as per EN and ASME

Flange to EN


DN	PN	∅D	H₂
25	40	115 mm (4.5")	Approx. 52 mm (2")
25	100	140 mm (5.5")
40	40	150 mm (5.9")
40	100	170 mm (6.7")
50	16	165 mm (6.5")
50	40	165 mm (6.5")
80	16	200 mm (7.9")
80	40	200 mm (7.9")

Flanges to ASME


DN	Class	∅D	H₂
1“	150	110 mm (4.3")	Approx. 52 mm (2")
1“	300	125 mm (4.9")
1½“	150	130 mm (5.1")
1½“	300	155 mm (6.1")
2“	150	150 mm (5.9")
2“	300	165 mm (6.5")
3“	150	190 mm (7.5")
3“	300	210 mm (8.1")
4“	150	230 mm (9.1")
4“	300	255 mm (10.0")

NuG and pharmaceutical connections

Connections to DIN


DN	PN	∅D	H₂
50	25	92 mm (3.6")	Approx. 52 mm (2")
80	25	127 mm (5.0")	Approx. 52 mm (2")


DN	PN	∅D	H₂
50	16	64 mm (2.5")	Approx. 52 mm (2")
65	16	91 mm (3.6")	Approx. 52 mm (2")

Other connections

Varivent connection
	DN	PN	∅D	H₂
	40 ... 125	40	84 mm (3.3")	Approx. 52 mm (2")


DN	PN	∅D	H₂
50	16	90 mm (3.5")	Approx. 52 mm (2")
65	16	120 mm (4.7")	Approx. 52 mm (2")


DN	PN	∅D	H₂
50	40	105 mm (4.1”)	Approx. 52 mm (2")
			Approx. 52 mm (2")


DN	PN	∅D	H₂
50	16	82 mm (3.2")	Approx. 52 mm (2")
65	16	105 mm (4.1”)
80	16	115 mm (4.5”)
100	16	145 mm (5.7")
2”	16	82 mm (3.2")
2½”	16	105 mm (4.1”)
3”	16	105 mm (4.1”)
4”	16	145 mm (5.7")


DN	PN	∅D	H₂
50	16	110 mm (4.3")	Approx. 52 mm (2")
65	16	140 mm (5.5”)
80	16	150 mm (5.9”)
100	16	175 mm (6.9")
2”	16	100 mm (3.9")
2½”	16	110 mm (4.3”)
3”	16	140 mm (5.5”)
4”	16	175 mm (6.9")


DN	PN	∅D	H₂
50	16	77.4 mm (3.0")	Approx. 52 mm (2")
65	10	90.9 mm (3.6")
80	10	106 mm (4.2")
100	10	119 mm (4.7")
2”	16	64 mm (2.5")
2½”	16	77.4 mm (3.0”)
3”	10	90.9 mm (3.6”)
4”	10	119 mm (4.7")


DN	PN	∅D	H₂
50	16	125 mm (4.9")	Approx. 52 mm (2")
65	10	145 mm (5.7")
80	10	155 mm (6.1")
100	10	180 mm (7.1")
2”	16	125 mm (4.9")
2½”	10	135 mm (5.3”)
3”	10	145 mm (5.7")
4”	10	180 mm (7.1")


DN	PN	∅D	H₂
¾“	63	37 mm (1.5")	approx. 45 mm (1.8")
1“	63	48 mm (1.9")	approx. 47 mm (1.9")
2“	63	78 mm (3.1")	Approx. 52 mm (2")


DN	PN	∅D	H₂
25	40	63 mm (2.5")	approx. 63 mm (2.5")
25	40	63 mm (2.5")	approx. 170 mm (6.7")


DN	PN	∅D	H₂
2“	25	84 mm (3.3")	Approx. 52 mm (2.1")
2½“	25	100 mm (3.9")
3“	25	114 mm (4.5")


DN	PN	∅D	H₂
2“	25	70 x 1/6 mm	Approx. 52 mm (2.1")
2½“	25	85 x 1/6 mm
3“	25	98 x 1/6 mm


DN	PN	∅D	H₂
2“	25	77 mm (3")	Approx. 52 mm (2.1")
2½“	25	91 mm (3.6")
3“	25	106 mm (4.2")


DN	PN	∅D	H₂
2“	25	64 mm (2.5")	Approx. 52 mm (2.1")
2½“	25	77.5 mm (3.1")
3“	25	91 mm (3.6")


DN	PN	∅D	H₂
50	25	78 x 1/6"	Approx. 52 mm (2.1")
65	25	95 x 1/6"
80	25	110 x ¼"
100	25	130 x ¼"


DN	PN	∅D	H₂
50	16	94	Approx. 52 mm (2.1")
65	16	113
80	16	133
100	16	159


DN	PN	∅D	H₂
50	16	94	Approx. 52 mm (2.1")
65	16	113
80	16	133
100		159


DN	PN	∅D	H₂
50	25	77,5	Approx. 52 mm (2.1")
65	25	91
80	16	106
100	16	130

Код	Заказной номер	Описание	Вес (кг)	Заказать
117992	7MF4997-1DA	hart-модем с интерфесом rs232 для подключения измерительных датчиков с hart-протоколом к компьютеру	0.1	Заказать
71484	7MF4997-1DB	hart-модем с usb-интерфесом для подключения измерительных датчиков с hart-протоколом к компьютеру	0.1	Заказать
71524	7MF4997-2HA	сварной разъем для pmc-присоединения, стандарт 1 1/2" резбовое соединение	0.143	Заказать
71525	7MF4997-2HB	сварной разъем для pmc-присоединения, уменьшенное 1" подсоединение, снабженное уплотнением из viton	0.063	Заказать
71526	7MF4997-2HC	уплотняющее кольцо для pmc подсоединения (стандартное), сделаны из ptfe (набор 5 шт.)	0.05	Заказать
118049	7MF4997-2HD	уплотняющее кольцо для pmc подсоединения (уменьшеный), сделаны из viton (набор 5 шт.)	0.05	Заказать
71527	7MF4997-2HE	weldable socket for tg 52/50 connection for ds iii and p300 series.	0.143	Заказать
71528	7MF4997-2HF	weldable socket for tg 52/150 connection for ds iii and p300 series.	0.143	Заказать
118050	7MF4997-2HG	seals f. tg 52/50 and tg 52/150 made of silicone (5 pcs).	0.05	Заказать
118075	7MF802.-.....-....	измерительный преобразователь sitrans p серии p300, цельный однокамерный корпус	2	Заказать
71552	7MF8997-1AA	монтажный уголок и монтажные части для sitrans p300 из нержавеющей стали	0.5	Заказать
118076	7MF8997-1BA	крышка без окошка для p300, прокладка не входит в комплект	0.3	Заказать
71553	7MF8997-1BD	крышка со стеклянным окошком для p300, прокладка не входит в комплект	0.45	Заказать
71555	7MF8997-1BG	nbr прокладка корпуса для p300	0.1	Заказать
71556	7MF8997-1CA	бирка точки измерения для p300 неразмеченная	0.005	Заказать
71557	7MF8997-1EA	кабельный ввод м20 для p300 (металлический)	0.005	Заказать
118077	7MF8997-1EB	кабельный ввод м20 для p300: пластик (голубой)	0.001	Заказать