WIKA IPT-20 IPT-21 Operating instructions

WIKA IPT-20 IPT-21 Operating instructions
Operating Instructions
Process pressure transmitter IPT-2x
Slave for electronic differential pressure
Metallic sensor
Process pressure transmitter IPT-2x
Contents
Contents
1
About this document................................................................................................................ 4
1.1 Function............................................................................................................................ 4
1.2 Target group...................................................................................................................... 4
1.3 Symbols used................................................................................................................... 4
2
For your safety.......................................................................................................................... 5
2.1 Authorised personnel........................................................................................................ 5
2.2 Appropriate use................................................................................................................. 5
2.3 Warning about incorrect use.............................................................................................. 5
2.4 General safety instructions................................................................................................ 5
2.5 EU conformity.................................................................................................................... 6
2.6 Permissible process conditions......................................................................................... 6
2.7 Installation and operation in the USA and Canada............................................................ 6
3
Product description.................................................................................................................. 7
3.1 Configuration..................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 8
3.3 Supplementary cleaning procedures............................................................................... 11
3.4 Packaging, transport and storage.................................................................................... 12
4
Mounting.................................................................................................................................. 13
4.1 General instructions........................................................................................................ 13
4.2 Ventilation and pressure compensation........................................................................... 14
4.3 Combination Master - Slave............................................................................................ 16
4.4 Level measurement......................................................................................................... 17
4.5 Differential pressure measurement................................................................................. 18
4.6 Interface measurement................................................................................................... 19
4.7 Density measurement..................................................................................................... 20
4.8 Density-compensated level measurement...................................................................... 21
4.9 External housing............................................................................................................. 23
5
Connecting to power supply.................................................................................................. 24
5.1 Preparing the connection................................................................................................ 24
5.2 Connecting...................................................................................................................... 24
5.3 Single chamber housing.................................................................................................. 26
5.4 External housing with version IP 68 (25 bar)................................................................... 26
5.5 Connection example....................................................................................................... 28
6
Set up with the display and adjustment module................................................................. 29
6.1 Parameter adjustment - Extended adjustment................................................................ 29
7
Diagnosis, asset management and service......................................................................... 42
7.1 Maintenance................................................................................................................... 42
7.2 Rectify faults.................................................................................................................... 42
7.3 Exchange process module on version IP 68 (25 bar)...................................................... 42
7.4 Exchanging the electronics module................................................................................. 43
7.5 Instrument repair............................................................................................................. 43
8
Dismount................................................................................................................................. 45
8.1 Dismounting steps.......................................................................................................... 45
8.2 Disposal.......................................................................................................................... 45
9
Supplement............................................................................................................................. 46
2
WIKA Operating Instructions - Process pressure transmitter IPT-2x
Contents
9.1
9.2
9.3
9.4
9.5
Technical data................................................................................................................. 46
Calculation of the total deviation...................................................................................... 59
Practical example............................................................................................................ 60
Dimensions..................................................................................................................... 63
Trademark....................................................................................................................... 71
Safety instructions for Ex areas
Take note of the Ex specific safety instructions for Ex applications.
These instructions are attached as documents to each instrument
with Ex approval and are part of the operating instructions.
Editing status: 2017-11-23
WIKA Operating Instructions - Process pressure transmitter IPT-2x
3
1 About this document
1
About this document
1.1
Function
1.2
Target group
1.3
Symbols used
This operating instructions provides all the information you need for
mounting, connection and setup as well as important instructions for
maintenance, fault rectification, the exchange of parts and the safety
of the user. Please read this information before putting the instrument
into operation and keep this manual accessible in the immediate
vicinity of the device.
This operating instructions manual is directed to trained personnel.
The contents of this manual must be made available to the qualified
personnel and implemented.
Information, tip, note
This symbol indicates helpful additional information.
Caution: If this warning is ignored, faults or malfunctions can result.
Warning: If this warning is ignored, injury to persons and/or serious
damage to the instrument can result.
Danger: If this warning is ignored, serious injury to persons and/or
destruction of the instrument can result.
•
→
1
Ex applications
This symbol indicates special instructions for Ex applications.
List
The dot set in front indicates a list with no implied sequence.
Action
This arrow indicates a single action.
Sequence of actions
Numbers set in front indicate successive steps in a procedure.
Battery disposal
This symbol indicates special information about the disposal of batteries and accumulators.
4
WIKA Operating Instructions - Process pressure transmitter IPT-2x
2 For your safety
2
2.1
For your safety
Authorised personnel
All operations described in this documentation must be carried out
only by trained, qualified personnel authorised by the plant operator.
During work on and with the device, the required personal protective
equipment must always be worn.
2.2
Appropriate use
IPT-2x is a slave sensor for electronic differential pressure measurement.
You can find detailed information about the area of application in
chapter "Product description".
Operational reliability is ensured only if the instrument is properly
used according to the specifications in the operating instructions
manual as well as possible supplementary instructions.
2.3
Warning about incorrect use
2.4
General safety instructions
Inappropriate or incorrect use of this product can give rise to application-specific hazards, e.g. vessel overfill through incorrect mounting
or adjustment. Damage to property and persons or environmental
contamination can result. Also, the protective characteristics of the
instrument can be impaired.
This is a state-of-the-art instrument complying with all prevailing
regulations and directives. The instrument must only be operated in a
technically flawless and reliable condition. The operator is responsible for the trouble-free operation of the instrument. When measuring
aggressive or corrosive media that can cause a dangerous situation
if the instrument malfunctions, the operator has to implement suitable
measures to make sure the instrument is functioning properly.
During the entire duration of use, the user is obliged to determine the
compliance of the necessary occupational safety measures with the
current valid rules and regulations and also take note of new regulations.
The safety instructions in this operating instructions manual, the national installation standards as well as the valid safety regulations and
accident prevention rules must be observed by the user.
For safety and warranty reasons, any invasive work on the device
beyond that described in the operating instructions manual may be
carried out only by personnel authorised by the manufacturer. Arbitrary conversions or modifications are explicitly forbidden. For safety
reasons, only the accessory specified by the manufacturer must be
used.
To avoid any danger, the safety approval markings and safety tips on
the device must also be observed and their meaning read in this operating instructions manual.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
5
2 For your safety
2.5
EU conformity
2.6
Permissible process conditions
The device fulfils the legal requirements of the applicable EU directives. By affixing the CE marking, we confirm the conformity of the
instrument with these directives.
For safety reasons, the instrument must only be operated within the
permissible process conditions. You can find detailed information on
the process conditions in chapter "Technical data" as well as on the
type label.
The permissible process pressure range is specified by "MWP"
(Maximum Working Pressure) on the type label, see chapter "Structure". The MWP takes the element of the measuring cell and processing fitting combination with the weakest pressure into consideration
and may applied permanently. The specification refers to a reference
temperature of +20 °C (+68 °F). It also applies when a measuring cell
with a higher measuring range than the permissible pressure range of
the process fitting is installed order-related.
In order to prevent damage to the device, the test pressure may only
exceed the specified MWP briefly by 1.5 times at reference temperature. The pressure stage of the process fitting as well as the overload
resistance of the measuring cell are taken into consideration here
(see chapter "Technical Data").
In addition, a temperature derating of the process fitting, e. g. with
flanges, can limit the permissible process pressure range according
to the respective standard.
2.7
Installation and operation in the USA and
Canada
This information is only valid for USA and Canada. Hence the following text is only available in the English language.
Installations in the US shall comply with the relevant requirements of
the National Electrical Code (ANSI/NFPA 70).
Installations in Canada shall comply with the relevant requirements of
the Canadian Electrical Code.
6
WIKA Operating Instructions - Process pressure transmitter IPT-2x
3 Product description
3
Scope of delivery
Product description
3.1
Configuration
The scope of delivery encompasses:
•
•
•
Pressure transmitter IPT-2x - Slave sensor
Ready-made connection cable, unassembled cable gland
Documentation
–– Quick setup guide IPT-2x
–– Characteristics test certificate
–– Instructions for optional instrument features
–– Ex-specific "Safety instructions" (with Ex versions)
–– If necessary, further certificates
Note:
Optional instrument features are also described in this operating
instructions manual. The respective scope of delivery results from the
order specification.
Scope of this operating
instructions
This operating instructions manual applies to the following instrument
versions:
•
•
Hardware from 1.0.0
Software version from 1.0.0
•
•
On the type plate of the electronics module
In the adjustment menu under "Info"
Note:
You can find the hardware and software version of the instrument as
follows:
Type label
The type label contains the most important data for identification and
use of the instrument:
WIKA Operating Instructions - Process pressure transmitter IPT-2x
7
3 Product description
13
1
2
3
4
5
6
7
8
9
12
11
10
Fig. 1: Layout of the type label (example)
1
2
3
4
5
6
7
8
9
10
Application area
Instrument type
Field for approvals
Signal output and voltage supply
Technical data
Product code
Order number
Serial number of the instrument
Symbol of the device protection class
ID numbers, instrument documentation
Reminder to observe the instrument documentation
3.2
Principle of operation
IPT-2x is suitable for applications in virtually all industries. It is used for
the measurement of the following pressure types.
•
•
•
Gauge pressure
Absolute pressure
Vacuum
Measured products
Measured products are gases, vapours and liquids.
Measured variables
The electronic differential pressure measurement is suitable for the
measurement of the following process variables:
IPT-2x is especially suitable for applications with higher temperatures
and high pressures.
•
•
•
•
•
•
Electronic differential
pressure
8
Level
Flow
Differential pressure
Density
Interface
Level, density-compensated
The IPT-2x slave sensor is combined with a sensor from the instrument series for electronic differential pressure measurement.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
3 Product description
2
1
Fig. 2: Example, electronic differential pressure for level measurement in pressurized vessel
1
2
IPT-2x
IPT-2x, slave sensor
The sensors are connected via a screened four-wire cable. The
measured value from the slave sensor is read in and factored into the
calculations. Power supply and parameter adjustment are carried out
through the master sensor.
Information:
The sensor versions "Relative pressure climate-compensated" as
well as "Double chamber housing" are not suitable for connection of a
slave sensor.
You can find further information in chapter "Combination Master Slave " of this operating instructions.
Measuring system
The process pressure acts on the sensor element via the process diaphragm. The process pressure causes a resistance change which is
converted into a corresponding output signal and output as measured
value.
Piezoresistive sensor element
Measuring ranges up to 40 bar: piezoresistive sensor element with
internal transmission liquid is used.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
9
3 Product description
1
3
2
4
Fig. 3: Configuration of the measuring system with piezoresistive sensor element
1
2
3
4
Sensor element
Base element
Transmission liquid
Process diaphragm
Strain gauge (DMS) sensor element
For measuring ranges above 100 bar, a strain gauge (DMS) sensor
element (dry system) is used.
1
2
3
Fig. 4: Configuration of the measuring system with strain gauge (DMS) sensor
element
1
2
3
Sensor element
Process diaphragm
Pressure cylinder
Ceramic/metallic measuring cell
With small measuring ranges ≤ 400 mbar or higher temperature
ranges, the ceramic/metallic measuring cell is the measuring unit.
It consists of the ceramic-capacitive measuring cell and a special,
temperature-compensated chemical seal system.
10
WIKA Operating Instructions - Process pressure transmitter IPT-2x
3 Product description
1
2
3
4
Fig. 5: Configuration of the ceramic/metallic measuring cell
1
2
3
4
Pressure types
Process diaphragm
Isolating liquid
FeNi adapter
Ceramic-capacitive measuring cell
Relative pressure: the measuring cell is open to the atmosphere.
The ambient pressure is detected in the measuring cell and compensated. It thus has no influence on the measured value.
Absolute pressure: the measuring cell is evacuated and encapsulated. The ambient pressure is not compensated and does hence
influence the measured value.
Seal concept
The measuring system is completely welded and thus sealed against
the process.
The process fitting is sealed against the process by a suitable seal. It
must be provided by the customer, depending on the process fitting
also included in the scope of delivery, see chapter "Technical data",
"Materials and weights".
3.3
Supplementary cleaning procedures
The IPT-2x is also available in the version "Oil, grease and siliconefree". These instruments have passed through a special cleaning
procedure to remove oil, grease and paint-wetting impairment substances (PWIS).
The cleaning is carried out on all wetted parts as well as on surfaces
accessible from outside. To keep the purity level, the instruments are
immediately packed in plastic foil after the cleaning process. The
purity level remains as long as the instrument is kept in the closed
original packaging.
Caution:
The IPT-2x in this version may not be used in oxygen applications. For
this purpose, instruments are available in the special version "Oil and
grease-free for oxygen applications".
WIKA Operating Instructions - Process pressure transmitter IPT-2x
11
3 Product description
Packaging
3.4
Packaging, transport and storage
Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
based on ISO 4180.
The packaging of standard instruments consists of environmentfriendly, recyclable cardboard. For special versions, PE foam or PE
foil is also used. Dispose of the packaging material via specialised
recycling companies.
Transport
Transport must be carried out in due consideration of the notes on the
transport packaging. Nonobservance of these instructions can cause
damage to the device.
Transport inspection
The delivery must be checked for completeness and possible transit
damage immediately at receipt. Ascertained transit damage or concealed defects must be appropriately dealt with.
Storage
Up to the time of installation, the packages must be left closed and
stored according to the orientation and storage markings on the
outside.
Unless otherwise indicated, the packages must be stored only under
the following conditions:
Storage and transport
temperature
Lifting and carrying
12
•
•
•
•
•
•
•
Not in the open
Dry and dust free
Not exposed to corrosive media
Protected against solar radiation
Avoiding mechanical shock and vibration
Storage and transport temperature see chapter "Supplement Technical data - Ambient conditions"
Relative humidity 20 … 85 %
With instrument weights of more than 18 kg (39.68 lbs) suitable and
approved equipment must be used for lifting and carrying.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
4 Mounting
4
Process conditions
Mounting
4.1
General instructions
Make sure before mounting that all parts of the instrument exposed to
the process are suitable for the existing process conditions.
These are mainly:
•
•
•
Active measuring component
Process fitting
Process seal
•
•
•
•
Process pressure
Process temperature
Chemical properties of the medium
Abrasion and mechanical influences
Process conditions in particular are:
You can find detailed information on the process conditions in chapter
"Technical data" as well as on the type label.
Protection against moisture
Protect your instrument against moisture ingress through the following
measures:
•
•
•
•
Use a suitable connection cable (see chapter "Connecting to
power supply")
Tighten the cable gland or plug connector
When mounting horizontally, turn the housing so that the cable
gland or plug connector point downward
Lead the connection cable downward in front of the cable entry or
plug connector
This applies mainly to outdoor installations, in areas where high
humidity is expected (e.g. through cleaning processes) and on cooled
or heated vessels.
To maintain the housing protection, make sure that the housing lid is
closed during operation and locked, if necessary.
Make sure that the degree of contamination specified in chapter
"Technical data" meets the existing ambient conditions.
Screwing in
On devices with a threaded fitting, the hexagon on the process fitting
must be tightened with a suitable wrench.
See chapter "Dimensions" for wrench size.
Warning:
The housing or the electrical connection may not be used for screwing in! Tightening can cause damage, e. g. to the rotation mechanism
of the housing.
Vibrations
If there is strong vibration at the mounting location, the instrument
version with external housing should be used. See chapter "External
housing".
WIKA Operating Instructions - Process pressure transmitter IPT-2x
13
4 Mounting
Temperature limits
Higher process temperatures often mean also higher ambient
temperatures. Make sure that the upper temperature limits stated in
chapter "Technical data" for the environment of the electronics housing and connection cable are not exceeded.
2
1
Fig. 6: Temperature ranges
1
2
Filter element - Function
Process temperature
Ambient temperature
4.2
Ventilation and pressure compensation
The filter element in the electronics housing has the following functions:
•
•
Ventilation of the electronics housing
Atmospheric pressure compensation (with relative pressure measuring ranges)
Caution:
The filter element causes a time-delayed pressure compensation.
When quickly opening/closing the housing cover, the measured value
can change for approx. 5 s by up to 15 mbar.
For an effective ventilation, the filter element must be always free from
buildup. In case of horizontal mounting, turn the housing so that the
filter element points downward after the instrument is installed. This
provides better protection against buildup.
Caution:
Do not use a high-pressure cleaner. The filter element could be damaged, which would allow moisture into the housing.
The following paragraphs describe how the filter element is arranged
in the different instrument versions.
14
WIKA Operating Instructions - Process pressure transmitter IPT-2x
4 Mounting
Filter element - Position
4
4
1
4
2
3
Fig. 7: Position of the filter element - non-Ex, Ex-ia version
1
2
3
4
Plastic, stainless steel housing (precision casting)
Aluminium housing
Stainless steel housing (electropolished)
Filter element
With the following instruments a blind plug is installed instead of the
filter element:
•
Filter element - Position
Ex-d version
•
→
Instruments in protection IP 66/IP 68 (1 bar) - ventilation via capillaries in non-detachable cable
Instruments with absolute pressure
Turn the metal ring in such a way that the filter element points
downward after installation of the instrument. This provides better
protection against buildup.
1
2
Fig. 8: Position of the filter element - Ex-d version
1
2
Rotatable metal ring
Filter element
Instruments with absolute pressure have a blind plug mounted
instead of the filter element.
Instruments with Second
Line of Defense
The process assembly of instruments with Second Line of Defense
(gastight leadthrough) is completely encapsulated. An absolute pressure measuring cell is used so that no ventilation is required.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
15
4 Mounting
1
2
Fig. 9: Position of the filter element - gastight leadthrough
1
Filter element
Filter element - Position
IP 69K version
1
Fig. 10: Position of the filter element - IP 69K version
1
Filter element
Instruments with absolute pressure have a blind plug mounted
instead of the filter element.
4.3
Combination Master - Slave
In principle, any sensor combination within the instrument series is
allowed. The following requirements must be fulfilled:
•
•
•
•
Configuration, Master sensor suitable for electronic differential
pressure
Pressure type is identical for both sensors, i.e. relative pressure/
relative pressure or absolute pressure/absolute pressure
Master sensor measures the higher pressure
Measurement setup as shown in the following chapters
The measuring range of each sensor is selected such that it fits the
measuring loop. For this, the max. recommended turn down must be
noted. See chapter "Technical data". It is absolutely necessary the the
measuring ranges of Master and Slave correspond.
Measurement result = Measured value of Master (total pressure) - measured value of Slave (static pressure)
Depending on the application, individual combinations can result, see
following examples:
Example - large vessel
Data
Application: Level measurement
Medium: Water
16
WIKA Operating Instructions - Process pressure transmitter IPT-2x
4 Mounting
Vessel height: 12 m, hydrostatic pressure = 12 m x 1000 kg/m3 x
9.81 m/s2 = 117.7 kPa = 1.18 bar
Superimposed pressure: 1 bar
Total pressure: 1.18 bar + 1 bar = 2.18 bar
Instrument selection
Nominal measuring range Master: 2.5 bar
Nominal measuring range Slave: 1 bar
Turn Down: 2.5 bar/1.18 bar = 2.1 : 1
Example - small vessel
Data
Application: Level measurement
Medium: Water
Vessel height: 500 mm, hydrostatic pressure = 0.50 m x 1000 kg/m3 x
9.81 m/s2 = 4.9 kPa = 0.049 bar
Superimposed pressure: 350 mbar = 0.35 bar
Total pressure: 0.049 bar + 0.35 bar = 0.399 bar
Instrument selection
Nominal measuring range Master: 0.4 bar
Nominal measuring range Slave: 0.4 bar
Turn Down: 0.4 bar /0.049 bar = 8.2 : 1
Example - orifice in
pipeline
Data
Application: Differential pressure measurement
Medium: Gas
Static pressure: 0.8 bar
Differential pressure on orifice: 50 mbar = 0.050 bar
Total pressure: 0.8 bar + 0.05 bar = 0.85 bar
Instrument selection
Nominal measuring range Master: 1 bar
Nominal measuring range Slave: 1 bar
Turn Down: 1 bar/0.050 bar = 20 : 1
Output measured values
The measuring result (level, pressure difference) as well as measured value Slave (static or superimposed pressure) are output by the
sensor. Depending on the instrument version, output as 4 … 20 mA
signal or digitally via HART, Profibus PA or Foundation Fieldbus.
Measurement setup
The master/slave combination is suitable for level measurement in a
pressurized vessel
4.4
Level measurement
Keep the following in mind when setting up the measuring system:
•
•
Mount the master sensor below the min. level
Do not mount the master sensor close to the filling stream or
emptying area
WIKA Operating Instructions - Process pressure transmitter IPT-2x
17
4 Mounting
•
•
Mount the master sensor so that it is protected against pressure
shocks from the stirrer
Mount the slave sensor above the max. level
2
1
Fig. 11: Measurement setup, level measurement in pressurized vessel
1
2
Measurement setup
IPT-2x
IPT-2x, slave sensor
4.5
Differential pressure measurement
The master/slave combination is suitable for differential pressure
measurement
Take note of the following instructions for the measurement setup, for
example in gases:
•
Mount the instruments above the measuring point
Possible condensation can then drain off into the process line.
18
WIKA Operating Instructions - Process pressure transmitter IPT-2x
4 Mounting
1
2
Fig. 12: Measurement setup for differential pressure measurement of gases in
pipelines
1
2
Measurement setup
IPT-2x
IPT-2x, slave sensor
4.6
Interface measurement
The master/slave combination is suitable for interface measurement
Requirements for a functioning measurement are:
•
•
•
•
Vessel with changing level
Products with steady density
Interface always between the measurement points
Total level always above the upper measurement point
The mounting distance h of the two sensors should be at least 10 %,
better 20 %, of the final value of the sensor measuring range. A bigger
distance increases the accuracy of the interface measurement.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
19
4 Mounting
2
h
0,8
1,0
1
Fig. 13: Measurement setup with interface measurement, h = distance between
the two measuring points
1
2
IPT-2x
IPT-2x, slave sensor
The interface measurement is possible in open as well as in closed
vessels.
4.7
Measurement setup
The master/slave combination is suitable for density measurement.
Requirements for a functioning measurement are:
•
•
•
20
Density measurement
Vessel with changing level
Distance between the measurement points as large as possible
Level always above the upper measuring point
WIKA Operating Instructions - Process pressure transmitter IPT-2x
4 Mounting
h
2
1
Fig. 14: Measurement setup for density measurement, h = distance between the
two measuring points
1
2
IPT-2x
IPT-2x, slave sensor
The mounting distance h of the two sensors should be at least 10 %,
better 20 %, of the final value of the sensor measuring range. A bigger
distance increases the accuracy of the density measurement.
Slight density changes cause only slight changes of the measured
differential pressure. The measuring range must hence be selected
accordingly.
The density measurement is possible in open as well as in closed
vessels.
Measurement setup
4.8
Density-compensated level measurement
The master/slave combination is suitable for density-compensated
level measurement
Keep the following in mind when setting up the measuring system:
•
•
•
Mount the master sensor below the min. level
Mount the slave sensor above the master sensor
Mount both sensors away from the filling stream and emptying and
protected against pressure shocks from the stirrer
WIKA Operating Instructions - Process pressure transmitter IPT-2x
21
4 Mounting
h
2
1
Fig. 15: Measurement setup for density-compensated level measurement, h =
distance between the two measuring points
1
2
IPT-2x
IPT-2x, slave sensor
The mounting distance h of the two sensors should be at least 10 %,
better 20 %, of the final value of the sensor measuring range. A bigger
distance increases the accuracy of the density compensation.
The density-compensated level measurement starts with the stored
density 1 kg/dm3. As soon as both sensors are covered, this value will
be replaced by the calculated density. Density compensation means
that the level value in height units and the adjustment values do not
change in case of a fluctuating density.
The density-compensated level measurement is only possible in
open, i.e. unpressurized vessels.
22
WIKA Operating Instructions - Process pressure transmitter IPT-2x
4 Mounting
Configuration
4.9
External housing
4
3
2
5
1
Fig. 16: Configuration, process module, external housing
1
2
3
4
5
Pipeline
Process module
Connection cable process assembly - External housing
External housing
Signal cable
WIKA Operating Instructions - Process pressure transmitter IPT-2x
23
5 Connecting to power supply
5
Safety instructions
Connecting to power supply
5.1
Preparing the connection
Always keep in mind the following safety instructions:
•
•
Carry out electrical connection by trained, qualified personnel
authorised by the plant operator
If overvoltage surges are expected, overvoltage arresters should
be installed
Warning:
Connect only in the complete absence of line voltage.
Voltage supply
The voltage supply and the signal transmission are carried out via the
four-wire, screened connection cable from the master sensor.
You can find the data for this signal circuit in chapter "Technical data".
Cable screening and
grounding
The screening of the cable between master and slave sensor must
be connected on both ends to ground potential. In the sensor, the
screening is connected directly to the internal ground terminal. The
ground terminal on the outside of the housing must be connected to
the ground potential (low impedance).
Cable glands
Metric threads
In the case of instrument housings with metric thread, the cable
glands are screwed in at the factory. They are sealed with plastic
plugs as transport protection.
You have to remove these plugs before electrical connection.
NPT thread
In the case of instrument housings with self-sealing NPT threads, it is
not possible to have the cable entries screwed in at the factory. The
free openings for the cable glands are therefore covered with red dust
protection caps as transport protection.
Prior to setup you have to replace these protective caps with approved cable glands or close the openings with suitable blind plugs.
On plastic housings, the NPT cable gland or the Conduit steel tube
must be screwed into the threaded insert without grease.
Max. torque for all housings, see chapter "Technical data".
Connection technology
5.2
Connecting
The connection to the Master sensor is carried out through springloaded terminals in the respective housing. For this, use the supplied,
confectioned cable. Solid cores as well as flexible cores with cable
end sleeves are inserted directly into the terminal openings.
In case of flexible cores without end sleeves, press the terminal from
above with a small screwdriver, the terminal opening is then free.
When the screwdriver is released, the terminal closes again.
24
WIKA Operating Instructions - Process pressure transmitter IPT-2x
5 Connecting to power supply
Information:
The terminal block is pluggable and can be removed from the
electronics. To do this, lift the terminal block with a small screwdriver
and pull it out. When reinserting the terminal block, you should hear it
snap in.
You can find further information on the max. wire cross-section under
"Technical data - Electromechanical data".
Connection procedure
Proceed as follows:
1. Unscrew the housing lid
2. Loosen compression nut of the cable gland and remove blind
plug
3. Remove approx. 10 cm (4 in) of the cable mantle, strip approx.
1 cm (0.4 in) insulation from the individual wires or use supplied
connection cable
4. Insert the cable into the sensor through the cable entry
Fig. 17: Connection steps 5 and 6
5. Insert the wire ends into the terminals according to the wiring plan
6. Check the hold of the wires in the terminals by lightly pulling on
them
7. Connect the screen to the internal ground terminal, connect the
external ground terminal to potential equalisation
8. Tighten the compression nut of the cable entry gland. The seal
ring must completely encircle the cable
9. Unscrew the blind plug on the Master, screw in the supplied cable
gland
10. Connection cable to Master, see steps 3 to 8
11. Screw the housing lid back on
The electrical connection is finished.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
25
5 Connecting to power supply
5.3
Single chamber housing
The following illustration applies to the non-Ex, Ex-ia and Ex-d-ia
version.
Electronics and connection compartment
connect to Master
5
6
7
8
4
1
2
Fig. 18: Wiring plan IPT-2x Slave sensor
1
2
Overview
To the Master sensor
Ground terminal for connection of the cable screening1)
5.4
External housing with version IP 68 (25 bar)
2
3
1
Fig. 19: IPT-2x in IP 68 version 25 bar with axial cable outlet, external housing
1
2
3
1)
26
Transmitter
Connection cable
External housing
Connect shielding here. Connect ground terminal on the outside of the housing to ground as prescribed. The two terminals are galvanically connected.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
5 Connecting to power supply
Electronics and connection compartment for
power supply
1
4...20mA
(+)1
2(-)
5
6
7
8
2
3
Fig. 20: Electronics and connection compartment
1
2
3
Electronics module
Cable gland for voltage supply
Cable gland for connection cable, transmitter
Terminal compartment,
housing socket
1 2 3 4
1
5
2
3
4
6
Fig. 21: Connection of the process component in the housing base
1
2
3
4
5
6
Yellow
White
Red
Black
Shielding
Breather capillaries
WIKA Operating Instructions - Process pressure transmitter IPT-2x
27
5 Connecting to power supply
Electronics and connection compartment
connect to Master
5
6
7
8
4
1
2
Fig. 22: Wiring plan IPT-2x Slave sensor
1
2
Connection example,
electronic differential
pressure
To the Master sensor
Ground terminal for connection of the cable screening2)
5.5
Connection example
connect to Master
4...20mA
(+)1
2(-)
5
4
6
7
8
3
5
6
7
8
4
1
2
Fig. 23: Connection example, electronic differential pressure
1
2
3
4
Master sensor
Slave sensor
Connection cable
Supply and signal circuit, Master sensor
Connection between master and sensor is carried out according to
the table:
Master sensor
Slave sensor
Terminal 5
Terminal 5
Terminal 6
Terminal 6
Terminal 7
Terminal 7
Terminal 8
Terminal 8
2)
28
Connect shielding here. Connect ground terminal on the outside of the housing to ground as prescribed. The two terminals are galvanically connected.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
6 Set up with the display and adjustment module
6
6.1
Set up with the display and adjustment
module
Parameter adjustment - Extended adjustment
For technically demanding measuring points, you can carry out
extended settings in "Extended adjustment".
Main menu
The main menu is divided into five sections with the following functions:
Setup: Settings, e.g., for measurement loop name, application, units,
position correction, adjustment, signal output
Display: Settings, e.g., for language, measured value display, lighting
Diagnosis: Information, e.g. on instrument status, pointer, measurement reliability, simulation
Additional adjustments: PIN, date/time, reset, copy function
Info: Instrument name, hardware and software version, date of manufacture, sensor features
In the main menu item "Setup", the individual submenu items should
be selected one after the other and provided with the correct parameter values.
The following submenu points are available:
In the following section, the menu items from the menu "Setup" for
electronic differential pressure measurement are described in detail.
Depending on the selected application, different sections are relevant.
Information:
Further menu items of the menu "Setup" as well as the complete
menus "Display", "Diagnosis", "Additional adjustments" and "Info"
are described in the operating instructions of the respective master
sensor.
Setup - Application
In this menu item you activate/deactivate the slave sensor for electronic differential pressure and select the application.
The IPT-2x in conjunction with a slave sensor can be used for flow,
differential pressure, density and interface measurement. The default
WIKA Operating Instructions - Process pressure transmitter IPT-2x
29
6 Set up with the display and adjustment module
setting is differential pressure measurement. Switchover is carried out
in the adjustment menu.
If you have connected a slave sensor, you confirm this with "Activate".
Note:
It is absolutely necessary to activate the slave sensor to have the
applications displayed in the electronic differential pressure measurement menus.
Enter the requested parameters via the appropriate keys, save your
settings with [OK] and jump to the next menu item with the [ESC] and
the [->] key.
Setup - Units
In this menu item, you determine the units for the "Min. adjustment/
Zero" and "Max. adjustment/Span" as well as the static pressure.
If the level should be adjusted in a height unit, the density of the medium must also be entered later during the adjustment.
In addition, the unit is determined in the menu item "Peak value
temperature".
Enter the requested parameters via the appropriate keys, save your
settings with [OK] and jump to the next menu item with the [ESC] and
the [->] key.
Setup - Position correction
Especially with chemical seal systems, the installation position of the
instrument can shift (offset) the measured value. Position correction
compensates this offset. In the process, the actual measured value
is taken over automatically. With relative pressure measuring cells a
manual offset can also be carried out.
There are the following possibilities for a position correction with a
master/slave combination
•
•
•
Automatic correction for both sensors
Manual correction for the Master (differential pressure)
Manual correction for the Slave (static pressure)
•
Automatic correction, master (level)
With a master/slave combination in the application "Density-compensated level measurement" there are the following additional options
for the position correction
30
WIKA Operating Instructions - Process pressure transmitter IPT-2x
6 Set up with the display and adjustment module
•
Manual correction for the Master (level)
During an automatic position correction, the current measured value
is accepted as the correction value. This value must not be influenced/corrupted by product coverage or static pressure.
In case of a manual position correction, the offset value is determined
by the user. Select for this purpose the function "Edit" and enter the
requested value.
Save your settings with [OK] and move with [ESC] and [->] to the
next menu item.
After the position correction is carried out, the actual measured value
is corrected to 0. The corrective value appears with an inverse sign as
offset value in the display.
The position correction can be repeated any number of times.
Setup - Adjustment
IPT-2x always measures pressure independently of the process variable selected in the menu item "Application". To output the selected
process variable correctly, an allocation of the output signal to 0 %
and 100 % must be carried out (adjustment).
With the application "Level", the hydrostatic pressure, e.g. with full
and empty vessel, is entered for adjustment. A superimposed pressure is detected by the slave sensor and automatically compensated.
See the following example:
WIKA Operating Instructions - Process pressure transmitter IPT-2x
31
6 Set up with the display and adjustment module
4
2
5m
(196.9")
100%
0%
1
3
Fig. 24: Parameter adjustment example "Min./max. adjustment, level measurement"
1
2
3
4
Min. level = 0 % corresponds to 0.0 mbar
Max. level = 100 % corresponds to 490.5 mbar
IPT-2x
IPT-2x, slave sensor
If these values are not known, an adjustment with filling levels of e.g.
10 % and 90 % is also possible. By means of these settings, the real
filling height is then calculated.
The actual product level during this adjustment is not important,
because the min./max. adjustment is always carried out without
changing the product level. These settings can be made ahead of
time without the instrument having to be installed.
Note:
If the adjustment ranges are exceeded, the entered value will not be
accepted. Editing can be interrupted with [ESC] or corrected to a
value within the adjustment ranges.
For the other process variables such as e.g. process pressure, differential pressure or flow, the adjustment is performed in like manner.
Setup - Min. adjustment
Level
Proceed as follows:
1. Select the menu item "Setup" with [->] and confirm with [OK].
Now select with [->] the menu item "Adjustment", then "Min.
adjustment" and confirm with [OK].
2. Edit the percentage value with [OK] and set the cursor to the
requested position with [->].
32
WIKA Operating Instructions - Process pressure transmitter IPT-2x
6 Set up with the display and adjustment module
3. Set the requested percentage value (e.g. 10 %) with [+] and save
with [OK]. The cursor jumps now to the pressure value.
4. Enter the pressure value corresponding to the min. level (e.g.
0 mbar).
5. Save settings with [OK] and move with [ESC] and [->] to the max.
adjustment.
The min. adjustment is finished.
For an adjustment with filling, simply enter the actual measured value
indicated at the bottom of the display.
Setup - Max. adjustment
Level
Proceed as follows:
1. Select with [->] the menu item Max. adjustment and confirm with
[OK].
2. Edit the percentage value with [OK] and set the cursor to the
requested position with [->].
3. Set the requested percentage value (e.g. 90 %) with [+] and save
with [OK]. The cursor jumps now to the pressure value.
4. Enter the pressure value for the full vessel (e.g. 900 mbar) corresponding to the percentage value.
5. Save settings with [OK]
The max. adjustment is finished.
For an adjustment with filling, simply enter the actual measured value
indicated at the bottom of the display.
Setup - Min. adjustment,
flow
Proceed as follows:
1. Select the menu item "Setup" with [->] and confirm with [OK].
Now select with [->] the menu item "Min. adjustment" and confirm
with [OK].
2. Edit the mbar value with [OK] and set the cursor to the requested
position with [->].
3. Set the requested mbar value with [+] and store with [OK].
4. Change with [ESC] and [->] to the span adjustment
With flow in two directions (bidirectional) a negative differential pressure is also possible. The maximum negative pressure must then be
entered for the min. adjustment. For linearization, select "bidirectional"
or "bidirectional-extracted by root" accordingly, see menu item "Linerarization".
The min. adjustment is finished.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
33
6 Set up with the display and adjustment module
For an adjustment with pressure, simply enter the actual measured
value indicated at the bottom of the display.
Setup - Max. adjustment,
flow
Proceed as follows:
1. Select with [->] the menu item Max. adjustment and confirm with
[OK].
2. Edit the mbar value with [OK] and set the cursor to the requested
position with [->].
3. Set the requested mbar value with [+] and store with [OK].
The max. adjustment is finished.
For an adjustment with pressure, simply enter the actual measured
value indicated at the bottom of the display.
Setup - Zero adjustment,
differential pressure
Proceed as follows:
1. Select the menu item "Setup" with [->] and confirm with [OK].
Now select with [->] the menu item "Zero adjustment" and confirm
with [OK].
2. Edit the mbar value with [OK] and set the cursor to the requested
position with [->].
3. Set the requested mbar value with [+] and store with [OK].
4. Change with [ESC] and [->] to the span adjustment
The zero adjustment is finished.
Information:
The Zero adjustment shifts the value of the span adjustment. The
span, i.e. the difference between these values, however, remains
unchanged.
For an adjustment with pressure, simply enter the actual measured
value indicated at the bottom of the display.
Setup - span adjustment,
differential pressure
Proceed as follows:
1. Select with [->] the menu item Span adjustment and confirm with
[OK].
2. Edit the mbar value with [OK] and set the cursor to the requested
position with [->].
34
WIKA Operating Instructions - Process pressure transmitter IPT-2x
6 Set up with the display and adjustment module
3. Set the requested mbar value with [+] and store with [OK].
The span adjustment is finished.
For an adjustment with pressure, simply enter the actual measured
value indicated at the bottom of the display.
Setup - Distance, density
Proceed as follows:
.
Select in the menu item "Setup" with [->] "Adjustment" and confirm with [OK]. Now confirm the menu item "Distance" with [OK].
.
Edit the sensor distance with [OK] and set the cursor to the
requested position with [->].
.
Set the distance with [+] and save with [OK].
The adjustment of the distance is hence finished.
Setup - Min. adjustment,
density
Proceed as follows:
1. Select the menu item "Setup" with [->] and confirm with [OK].
Now select with [->] the menu item "Min. adjustment" and confirm
with [OK].
2. Edit the percentage value with [OK] and set the cursor to the
requested position with [->].
3. Set the requested percentage value with [+] and save with [OK].
The cursor jumps now to the density value.
4. Enter the min. density corresponding to the percentage value.
5. Save settings with [OK] and move with [ESC] and [->] to the max.
adjustment.
The min. adjustment for density is finished.
Setup - Max. adjustment,
density
Proceed as follows:
1. Select the menu item "Setup" with [->] and confirm with [OK].
Now select with [->] the menu item "Max. adjustment" and confirm with [OK].
2. Edit the percentage value with [OK] and set the cursor to the
requested position with [->].
3. Set the requested percentage value with [+] and save with [OK].
The cursor jumps now to the density value.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
35
6 Set up with the display and adjustment module
4. Enter the max. density value corresponding to the percentage
value.
The max. adjustment for density is finished.
Setup - Distance Interface Proceed as follows:
.
Select in the menu item "Setup" with [->] "Adjustment" and confirm with [OK]. Now confirm the menu item "Distance" with [OK].
.
Edit the sensor distance with [OK] and set the cursor to the
requested position with [->].
.
Set the distance with [+] and save with [OK].
The adjustment of the distance is hence finished.
Setup - Min. adjustment Interface
Proceed as follows:
1. Select the menu item "Setup" with [->] and confirm with [OK].
Now select with [->] the menu item "Min. adjustment" and confirm
with [OK].
2. Edit the percentage value with [OK] and set the cursor to the
requested position with [->].
3. Set the requested percentage value with [+] and save with [OK].
The cursor jumps now to the height value.
4. Enter the min. height of the interface corresponding to the percentage value.
5. Save settings with [OK] and move with [ESC] and [->] to the max.
adjustment.
The min. adjustment for interface is thus finished.
Setup - Max. adjustment - Proceed as follows:
Interface
1. Select the menu item "Setup" with [->] and confirm with [OK].
Now select with [->] the menu item "Max. adjustment" and confirm with [OK].
2. Edit the percentage value with [OK] and set the cursor to the
requested position with [->].
3. Set the requested percentage value with [+] and save with [OK].
The cursor jumps now to the height value.
36
WIKA Operating Instructions - Process pressure transmitter IPT-2x
6 Set up with the display and adjustment module
4. Enter the max. height of the interface corresponding to the percentage value.
The max. adjustment for interface is finished.
Setup - Distance, level
density-compensated
Proceed as follows:
.
Select in the menu item "Setup" with [->] "Adjustment" and confirm with [OK]. Now confirm the menu item "Distance" with [OK].
.
Edit the sensor distance with [OK] and set the cursor to the
requested position with [->].
.
Set the distance with [+] and save with [OK].
The adjustment of the distance is hence finished.
Setup - Min. distance, lev- Proceed as follows:
el density-compensated
1. Select the menu item "Setup" with [->] and confirm with [OK].
Now select with [->] the menu item "Adjustment", then "Min.
adjustment" and confirm with [OK].
2. Edit the percentage value with [OK] and set the cursor to the
requested position with [->].
3. Set the requested percentage value (e.g. 0 %) with [+] and save
with [OK]. The cursor jumps now to the pressure value.
4. Enter the value corresponding to the min. level (e.g. 0 m).
5. Save settings with [OK] and move with [ESC] and [->] to the max.
adjustment.
The min. adjustment is finished.
For an adjustment with filling, simply enter the actual measured value
indicated at the bottom of the display.
Setup - Max. distance,
level density-compensated
Proceed as follows:
1. Select with [->] the menu item Max. adjustment and confirm with
[OK].
2. Edit the percentage value with [OK] and set the cursor to the
requested position with [->].
3. Set the requested percentage value (e.g. 100 %) with [+] and
save with [OK]. The cursor jumps now to the pressure value.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
37
6 Set up with the display and adjustment module
4. Enter the value for the full vessel (e.g. 10 m) corresponding to the
percentage value.
5. Save settings with [OK]
The max. adjustment is finished.
Setup - Linearisation
For an adjustment with filling, simply enter the actual measured value
indicated at the bottom of the display.
A linearization is necessary for all applications in which the measured
process variable does not increase linearly with the measured value.
This applies for example to the flow measured via the differential
pressure or the vessel volume measured via the level. Corresponding linearization curves are preprogrammed for such cases. They
represent the correlation between the measured value percentage
and process variable. The linearization applies to the measured value
indication and the current output.
With flow measurement and selection "Linear" display and output
(percentage/current) are linear to "Differential pressure". This can
be used, for example, to feed a flow computer.
With flow measurement and selection "Extraction by root"display and
output (percentage/current) are linear to "Flow".3)
With flow in two directions (bidirectional) a negative differential pressure is also possible. This must already be taken into account in menu
item "Min. adjustment flow".
Caution:
Note the following, if the respective sensor is used as part of an overfill protection system according to WHG:
If a linearisation curve is selected, the measuring signal is no longer
necessarily linear to the filling height. This must be considered by the
user especially when setting the switching point on the limit signal
transmitter.
Setup - AI FB1
Since the parameter adjustment of the Function Block 1 (FB1) is very
comprehensive, it was divided into various submenu items.
Setup - AI FB1 - Channel
In menu item "Channel" you determine the input signal for further
processing in AI FB 1.
As input signals, the output values of Transducer Block (TB) can be
selected.
3)
38
The device assumes an approximately constant temperature and static
pressure and calculates the flow rate from the measured differential pressure
using the characteristic curve extracted by root.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
6 Set up with the display and adjustment module
Display - Displayed value
1 and 2 - 4 … 20 mA
In this menu item, you define which measured value is displayed.
The default setting for the displayed value is "Differential pressure".
Display - Display format
1 and 2
In this menu item you define the number of decimal positions with
which the measured value is displayed.
The default setting for the display format is "Automatic".
Display - Displayed value
1 and 2 - bus systems
In this menu item, you define which measured value is displayed.
The default setting for the displayed value is "Differential pressure".
Display - Display format
1 and 2
In this menu item you define the number of decimal positions with
which the measured value is displayed.
The default setting for the display format is "Automatic".
Diagnostics - Peak values, pressure
The respective min. and max. measured values for the differential
pressure and static pressure are stored in the sensor. In menu item
"Peak value, pressure", both values are displayed.
In another window you can carry out a reset of the peak values
separately.
Diagnosis - Simulation
4 … 20 mA/HART
In this menu item you can simulate measured values. This allows the
signal path to be tested, e.g. through downstream indicating instruments or the input card of the control system.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
39
6 Set up with the display and adjustment module
Select the requested simulation variable and set the requested value.
To deactivate the simulation, you have to push the [ESC] key and
confirm the message "Deactivate simulation" with the [OK] key.
Caution:
During simulation, the simulated value is output as 4 … 20 mA current value and as digital HART signal. The status message within the
context of the asset management function is "Maintenance".
Note:
Without manual deactivation, the sensor terminates the simulation
automatically after 60 minutes.
Diagnosis - Simulation
bus systems
In this menu item you can simulate measured values. This allows the
signal path to be tested, e.g. through downstream indicating instruments or the input card of the control system.
Select the requested simulation variable and set the requested value.
To deactivate the simulation, you have to push the [ESC] key and
confirm the message "Deactivate simulation" with the [OK] key.
Caution:
During simulation, the simulated value is output as digital signal.
The status message along with the Asset Management function is
"Maintenance".
Note:
Without manual deactivation, the sensor terminates the simulation
automatically after 60 minutes.
Additional settings - Current output 1 and 2 (size)
40
In menu item "Current output, variable" you specify which measured
variable is output via the current output.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
6 Set up with the display and adjustment module
The following selection is possible depending on the selected application:
•
•
•
•
•
•
•
•
•
•
Additional adjustments
- Characteristics values,
DP flow element
Flow
Height - Interface
Density
Differential pressure
Static pressure
Percent
Scaled
Percent linearized
Measuring cell temperature (ceramic measuring cell)
Electronics temperature
In this menu item, the units for the DP flow element are determined
and the selection of mass or volume flow is carried out.
Furthermore the adjustment for the volume or mass flow at 0 % or
100 % is carried out.
The device automatically adds the flow in the selected unit. With
appropriate adjustment and bidirectional linearization, the flow rate is
counted both positively and negatively.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
41
7 Diagnosis, asset management and service
7
Maintenance
Diagnosis, asset management and service
7.1
Maintenance
If the device is used properly, no special maintenance is required in
normal operation.
Precaution measures
against buildup
In some applications, product buildup on the diaphragm can influence
the measuring result. Depending on the sensor and application, take
precautions to ensure that heavy buildup, and especially a hardening
thereof, is avoided.
Cleaning
The cleaning helps that the type label and markings on the instrument
are visible.
Take note of the following:
•
•
Use only cleaning agents which do not corrode the housings, type
label and seals
Use only cleaning methods corresponding to the housing protection rating
7.2
Rectify faults
Reaction when malfunction occurs
The operator of the system is responsible for taking suitable measures to rectify faults.
Fault rectification
The first measures are:
•
•
•
Evaluation of fault messages
Checking the output signal
Treatment of measurement errors
A smartphone/tablet with the VEGA Tools app or a PC/notebook with
the software PACTware and the suitable DTM offer you further comprehensive diagnostic possibilities. In many cases, the causes can be
determined in this way and the faults eliminated.
Reaction after fault rectification
Depending on the reason for the fault and the measures taken, the
steps described in chapter "Setup" must be carried out again or must
be checked for plausibility and completeness.
7.3
Exchange process module on version
IP 68 (25 bar)
On version IP 68 (25 bar), the user can exchange the process module
on site. Connection cable and external housing can be kept.
Required tools:
•
Hexagon key wrench, size 2
Caution:
The exchange may only be carried out in the complete absence of
line voltage.
In Ex applications, only a replacement part with appropriate Ex approval may be used.
42
WIKA Operating Instructions - Process pressure transmitter IPT-2x
7 Diagnosis, asset management and service
Caution:
During exchange, protect the inner side of the parts against contamination and moisture.
Proceed as follows when carrying out the exchange:
1. Losen the fixing screw with the hexagon key wrench
2. Carefully detach the cable assembly from the process module
6
4
5
3
2
1
Fig. 25: IPT-2x in IP 68 version, 25 bar and lateral cable outlet, external housing
1
2
3
4
5
6
Process module
Plug connector
Fixing screw
Cable assembly
Connection cable
External housing
3. Loosen the plug connector
4. Mount the new process module on the measuring point
5. Plug the connector back in
6. Mount the cable assembly on the process module and turn it to
the desired position
7. Tighten the fixing screw with the hexagon key wrench
The exchange is finished.
7.4
Exchanging the electronics module
In case of a defect, the user can replace the electronics module with
another one of identical type.
In Ex applications, only instruments and electronics modules with appropriate Ex approval may be used.
If there is no electronics module available on site, one can be ordered
from the agency serving you.
7.5
Instrument repair
You can find information for a return shipment under "Service" on our
local website.
If a repair is necessary, please proceed as follows:
•
Complete one form for each instrument
WIKA Operating Instructions - Process pressure transmitter IPT-2x
43
7 Diagnosis, asset management and service
•
•
•
44
If necessary, state a contamination
Clean the instrument and pack it damage-proof
Attach the completed form and possibly also a safety data sheet to
the instrument
WIKA Operating Instructions - Process pressure transmitter IPT-2x
8 Dismount
8
8.1
Dismount
Dismounting steps
Warning:
Before dismounting, be aware of dangerous process conditions such
as e.g. pressure in the vessel or pipeline, high temperatures, corrosive or toxic products etc.
Take note of chapters "Mounting" and "Connecting to voltage supply"
and carry out the listed steps in reverse order.
8.2
Disposal
The instrument consists of materials which can be recycled by specialised recycling companies. We use recyclable materials and have
designed the electronics to be easily separable.
WEEE directive
The instrument does not fall in the scope of the EU WEEE directive.
Article 2 of this Directive exempts electrical and electronic equipment
from this requirement if it is part of another instrument that does not
fall in the scope of the Directive. These include stationary industrial
plants.
Pass the instrument directly on to a specialised recycling company
and do not use the municipal collecting points.
If you have no way to dispose of the old instrument properly, please
contact us concerning return and disposal.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
45
9 Supplement
9
Supplement
9.1
Technical data
Note for approved instruments
The technical data in the respective safety instructions are valid for approved instruments (e.g. with
Ex approval). These data can differ from the data listed herein, for example regarding the process
conditions or the voltage supply.
Materials and weights
Materials, wetted (piezoresistive/strain gauge measuring cell)
Process fitting
Diaphragm standard
316L
316L
Diaphragm from measuring range 25 bar, Elgiloy (2.4711)
with not flush version
Seal ring, O-ring
FKM (VP2/A), EPDM (A+P 70.10-02), FFKM (Perlast
G75S), FEPM (Fluoraz SD890)
Seal for process fitting (in the scope of delivery)
ƲƲ Thread G½ (EN 837)
Klingersil C-4400
Materials, wetted (ceramic/metallic measuring cell)
Process fitting
Diaphragm
316L
Alloy C276 (2.4819), gold-coated 20 µ, gold/rhodiumcoated 5 µ/1 µ4)
Seal for process fitting (in the scope of delivery)
ƲƲ Thread G1½ (DIN 3852-A)
ƲƲ Thread M44 x 1.25 (DIN 13)
Klingersil C-4400
FKM, FFKM, EPDM
Materials for applications in foodstuffs
Surface quality, hygienic process fittings, Ra < 0.8 µm
typ.
Seal below wall mounting plate with 3A
approval
EPDM
Type label support on connection cable
PE hard
Materials, non-wetted parts
Isolating liquid ceramic/metallic measur- KN 92 medical white oil (FDA conform)
ing cell
Internal transmission liquid piezoresistive Synthetic oil, Halocarbon oil5)6)
measuring cell
Housing
ƲƲ Plastic housing
4)
5)
6)
Plastic PBT (Polyester)
Not on instruments with SIL qualification.
Synthetic oil for measuring ranges up to 40 bar, FDA listed for the food processing industry. For measuring
ranges up to 100 bar dry measuring cell.
Halocarbon oil: Generally in oxygen applications, not with vacuum measuring ranges, not with absolute measuring ranges < 1 barabs.
46
WIKA Operating Instructions - Process pressure transmitter IPT-2x
9 Supplement
ƲƲ Aluminium die-cast housing
ƲƲ Stainless steel housing
ƲƲ Cable gland
ƲƲ Sealing, cable gland
ƲƲ Blind plug, cable gland
Aluminium die-casting AlSi10Mg, powder-coated (Basis:
Polyester)
316L
PA, stainless steel, brass
NBR
PA
ƲƲ Seal between housing and housing lid Silicone SI 850 R, NBR silicone-free
ƲƲ Inspection window housing cover
ƲƲ Ground terminal
External housing
ƲƲ Housing
ƲƲ Socket, wall mounting plate
Polycarbonate (UL-746-C listed), glass7)
316L
Plastic PBT (Polyester), 316L
Plastic PBT (Polyester), 316L
ƲƲ Seal between base and wall mounting EPDM (fixed connected)
plate
Inspection window in housing cover
Seal, housing lid
Ground terminal
Connection cable to the master sensor
Weights
Total weight IPT-2x
Torques
Max. torque, metric process fittings
ƲƲ G¼, G½
ƲƲ G½ front-flush, G1 front-flush
Polycarbonate, UL746-C listed (with Ex-d version: glass)
Silicone SI 850 R, NBR silicone-free
316Ti/316L
PE, PUR
approx. 0.8 … 8 kg (1.764 … 17.64 lbs), depending on
process fitting and housing
50 Nm (36.88 lbf ft)
40 Nm (29.50 lbf ft)
ƲƲ G1½ front-flush (piezoresistive meas- 40 Nm (29.50 lbf ft)
uring cell)
ƲƲ G1½ front-flush (ceramic/metallic
measuring cell)
200 Nm (147.5 lbf ft)
ƲƲ ½ NPT inside, ¼ NPT,
≤ 40 bar/500 psig
50 Nm (36.88 lbf ft)
ƲƲ 7/16 NPT for tube ¼"
40 Nm (29.50 lbf ft)
Max. torque, non-metric process fittings
ƲƲ ½ NPT inside, ¼ NPT,
> 40 bar/500 psig
200 Nm (147.5 lbf ft)
ƲƲ 9/16 NPT for tube 3/8"
50 Nm (36.88 lbf ft)
Max. torque for NPT cable glands and Conduit tubes
ƲƲ Plastic housing
ƲƲ Aluminium/Stainless steel housing
7)
10 Nm (7.376 lbf ft)
50 Nm (36.88 lbf ft)
Glass with Aluminium and stainless steel precision casting housing
WIKA Operating Instructions - Process pressure transmitter IPT-2x
47
9 Supplement
Input variable - Piezoresistive/Strain gauge measuring cell
The specifications are only an overview and refer to the measuring cell. Limitations due to the
material and version of the process fitting as well as the selected pressure type are possible. The
specifications on the nameplate apply.
Nominal measuring ranges and overload capability in bar/kPa
Nominal range
Overload capability
Maximum pressure
Minimum pressure
0 … +0.4 bar/0 … +40 kPa
+1.2 bar/+120 kPa
-1 bar/-100 kPa
0 … +1,0 bar/0 … +100 kPa
+3 bar/+300 kPa
-1 bar/-100 kPa
0 … +2.5 bar/0 … +250 kPa
+7.5 bar/+750 kPa
-1 bar/-100 kPa
0 … +5 bar/0 … +250 kPa
+15 bar/+1500 kPa
-1 bar/-100 kPa
0 … +10 bar/0 … +1000 kPa
+30 bar/+3000 kPa
-1 bar/-100 kPa
0 … +16 bar/0 … +1600 kPa
+48 bar/+5000 kPa
-1 bar/-100 kPa
0 … +25 bar/0 … +2500 kPa
+75 bar/+7500 kPa
-1 bar/-100 kPa
0 … +40 bar/0 … +4000 kPa
+120 bar/+12 MPa
-1 bar/-100 kPa
0 … +60 bar/0 … +6000 kPa
+180 bar/+18 MPa
-1 bar/-100 kPa
0 … +100 bar/0 … +10 MPa
+200 bar/+20 MPa
-1 bar/-100 kPa
0 … +160 bar/0 … +10 MPa
+320 bar/+20 MPa
-1 bar/-100 kPa
0 … +250 bar/0 … +25 MPa
+500 bar/+20 MPa
-1 bar/-100 kPa
0 … +400 bar/0 … +40 MPa
+800 bar/+80 MPa
-1 bar/-100 kPa
0 … +600 bar/0 … +60 MPa
+1200 bar/+120 MPa
-1 bar/-100 kPa
0 … +1000 bar/0 … +100 MPa
+1500 bar/+150 MPa
-1 bar/-100 kPa
-1 … 0 bar/-100 … 0 kPa
+3 bar/+300 kPa
-1 bar/-100 kPa
-1 … +1.5 bar/-100 … +150 kPa
+7.5 bar/+750 kPa
-1 bar/-100 kPa
-1 … +5 bar/-100 … +500 kPa
+15 bar/+1500 kPa
-1 bar/-100 kPa
-1 … +10 bar/-100 … +1000 kPa
+30 bar/+3000 kPa
-1 bar/-100 kPa
-1 … +25 bar/-100 … +2500 kPa
+75 bar/+7500 kPa
-1 bar/-100 kPa
-1 … +40 bar/-100 … +4000 kPa
+120 bar/+12 MPa
-1 bar/-100 kPa
-0.2 … +0.2 bar/-20 … +20 kPa
+1.2 bar/+120 kPa
-1 bar/-100 kPa
-0.5 … +0.5 bar/-50 … +50 kPa
+3 bar/+300 kPa
-1 bar/-100 kPa
0 … 1 bar/0 … 100 kPa
3 bar/300 kPa
0 bar abs.
0 … 2.5 bar/0 … 250 kPa
7.5 bar/750 kPa
0 bar abs.
0 … 5 bar/0 … 500 kPa
15 bar/1500 kPa
0 bar abs.
0 … 10 bar/0 … 1000 kPa
30 bar/3000 kPa
0 bar abs.
0 … 16 bar/0 … 1600 kPa
50 bar/5000 kPa
0 bar abs.
0 … 25 bar/0 … 2500 kPa
75 bar/+7500 kPa
0 bar abs.
Gauge pressure
Absolute pressure
48
WIKA Operating Instructions - Process pressure transmitter IPT-2x
9 Supplement
Nominal range
0 … 40 bar/0 … 4000 kPa
Overload capability
Maximum pressure
Minimum pressure
120 bar/+12 MPa
0 bar abs.
Input variable - Ceramic/metallic measuring cell
The specifications are only an overview and refer to the measuring cell. Limitations due to the material and version of the process fitting are possible. The specifications on the nameplate apply.
Nominal measuring ranges and overload capability in bar/kPa
Nominal range
Overload capability
Maximum pressure
Minimum pressure
0 … +0.1 bar/0 … +10 kPa
+15 bar/+1500 kPa
-1 bar/-100 kPa
0 … +0.4 bar/0 … +40 kPa
+30 bar/+3000 kPa
-1 bar/-100 kPa
0 … +1 bar/0 … +100 kPa
+35 bar/+3500 kPa
-1 bar/-100 kPa
0 … +2.5 bar/0 … +250 kPa
+50 bar/+5000 kPa
-1 bar/-100 kPa
0 … +10 bar/0 … +1000 kPa
+50 bar/+5000 kPa
-1 bar/-100 kPa
0 … +25 bar/0 … +2500 kPa
+50 bar/+5000 kPa
-1 bar/-100 kPa
-1 … 0 bar/-100 … 0 kPa
+35 bar/+3500 kPa
-1 bar/-100 kPa
-1 … +1.5 bar/-100 … +150 kPa
+50 bar/+5000 kPa
-1 bar/-100 kPa
-1 … +10 bar/-100 … +1000 kPa
+50 bar/+5000 kPa
-1 bar/-100 kPa
-1 … +25 bar/-100 … +2500 kPa
+50 bar/+5000 kPa
-1 bar/-100 kPa
-0.2 … +0.2 bar/-20 … +20 kPa
+20 bar/+3000 kPa
-1 bar/-100 kPa
-0.5 … +0.5 bar/-50 … +50 kPa
+35 bar/+3500 kPa
-1 bar/-100 kPa
0 … 1 bar/0 … 100 kPa
35 bar/3500 kPa
0 bar abs.
0 … 2.5 bar/0 … 250 kPa
50 bar/5000 kPa
0 bar abs.
0 … 10 bar/0 … 1000 kPa
50 bar/5000 kPa
0 bar abs.
0 … 25 bar/0 … 2500 kPa
50 bar/5000 kPa
0 bar abs.
Gauge pressure
Absolute pressure
Nominal measuring ranges and overload capacity in psi
Nominal range
Overload capability
Maximum pressure
Minimum pressure
0 … +1.5 psig
+220 psig
-14.5 psig
0 … +5 psig
+435 psig
-14.5 psig
0 … +15 psig
+510 psig
-14.5 psig
0 … +30 psig
+725 psig
-14.5 psig
Gauge pressure
WIKA Operating Instructions - Process pressure transmitter IPT-2x
49
9 Supplement
Nominal range
Overload capability
Maximum pressure
Minimum pressure
0 … +150 psig
+725 psig
-14.5 psig
0 … +300 psig
+725 psig
-14.5 psig
-14.5 … 0 psig
+510 psig
-14.5 psig
-14.5 … +20 psig
+725 psig
-14.5 psig
-14.5 … +150 psig
+725 psig
-14.5 psig
-14.5 … +300 psig
+725 psig
-14.5 psig
-3 … +3 psig
+290 psi
-14.5 psig
-7 … +7 psig
+525 psig
-14.5 psig
0 … 15 psi
525 psi
0 psi
0 … 30 psi
725 psi
0 psi
0 … 150 psi
725 psig
0 psi
0 … 300 psi
725 psig
0 psi
Absolute pressure
Adjustment ranges
Specifications refer to the nominal measuring range, pressure values lower than -1 bar cannot be
set
Level (min./max. adjustment)
ƲƲ Percentage value
ƲƲ Pressure value
Flow (min./max. adjustment)
ƲƲ Percentage value
ƲƲ Pressure value
-10 … 110 %
-120 … 120 %
0 or 100 % fix
-120 … 120 %
Differential pressure (zero/span adjustment)
ƲƲ Zero
ƲƲ Span
Density (min./max. adjustment)
ƲƲ Percentage value
ƲƲ Density value
Interface (min./max. adjustment)
ƲƲ Percentage value
ƲƲ Level value
Max. permissible Turn Down
-95 … +95 %
-120 … +120 %
-10 … 100 %
according to the measuring ranges in kg/dm3
-10 … 100 %
according to the measuring ranges in m
Unlimited (recommended 20 : 1)
Dynamic behaviour output
Dynamic characteristics depending on medium and temperature
50
WIKA Operating Instructions - Process pressure transmitter IPT-2x
9 Supplement
100 %
90 %
2
1
10 %
tT
tS
t
tA
Fig. 26: Behaviour in case of sudden change of the process variable. tT: dead time; tA: rise time; tS: jump response
time
1
2
Process variable
Output signal
IPT-2x
IPT-2x - IP 68 (25 bar)
Dead time
≤ 25 ms
≤ 50 ms
Rise time (10 … 90 %)
≤ 55 ms
≤ 150 ms
Step response time (ti: 0 s, 10 … 90 %)
≤ 80 ms
≤ 200 ms
Damping (63 % of the input variable)
0 … 999 s, adjustable via menu item "Damping"
Reference conditions and influencing variables (according to DIN EN 60770-1)
Reference conditions according to DIN EN 61298-1
ƲƲ Temperature
+18 … +30 °C (+64 … +86 °F)
ƲƲ Air pressure
860 … 1060 mbar/86 … 106 kPa (12.5 … 15.4 psi)
ƲƲ Relative humidity
Determination of characteristics
Characteristic curve
Reference installation position
Influence of the installation position
ƲƲ Piezoresistive/strain gauge measuring cell
ƲƲ Ceramic/metallic measuring cell
Deviation in the current output due to
strong, high-frequency electromagnetic
fields acc. to EN 61326-1
45 … 75 %
Limit point adjustment according to IEC 61298-2
Linear
upright, diaphragm points downward
depending on the process fitting and the chemical seal
< 5 mbar/0.5 kPa (0.07 psig)
< ±150 µA
Deviation (according to IEC 60770-1)
Specifications refer to the set span. Turn down (TD) is the ratio: nominal measuring range/set span.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
51
9 Supplement
Accuracy class
Non-linearity, hysteresis and repeatability with TD 1 : 1 up to 5 : 1
Non-linearity, hysteresis and repeatability with 5 : 1
0.075 %
< 0.075 %
< 0.015 % x TD
0.1 %
< 0.1 %
< 0.02 % x TD
0.2 %
< 0.2 %
< 0.04 % x TD
Influence of the product temperature
Thermal change zero signal and output span
Turn down (TD) is the relation nominal measuring range/adjusted span.
The thermal change of the zero signal and output span corresponds to the value FT in chapter
"Calculation of the total deviation (according to DIN 16086)".
Piezoresistive/strain gauge measuring cell
0,9
0,75
0,6
F TBasis / % (TD 1:1)
0,45
0,3
0,15
-40 °C
-0,15
10 °C 20 °C
40 °C 50 °C
70 °C
100 °C
150 °C
-0,3
-0,45
-0,6
-0,75
T / °C
-0,9
Fig. 27: Basic temperature error FTBasis at TD 1 : 1
The basic temperature error in % from the above graphic can increase due to the additional factors
such as accuracy class (factor FMZ) and Turn Down (factor FTD). The additional factors are listed
in the following tables.
Additional factor through accuracy class
Accuracy class
0.075 %, 0.1 %
0.2 %
Factor FMZ
1
3
Additional factor through Turn Down
The additional factor FTD through Turn down is calculated according to the following formula:
FTD = 0.5 x TD + 0.5
In the table, example values for typical Turn downs are listed.
Turn down
TD 1 : 1
TD 2.5 : 1
TD : 1
TD 10 : 1
TD 20 : 1
Factor FTD
1
1.75
3
5.5
10.5
52
WIKA Operating Instructions - Process pressure transmitter IPT-2x
9 Supplement
(
Ceramic/Metal measuring cell - Standard
F TBasis
-12
Fig. 28: Basic temperature error FTBasis at TD 1 : 1
The basic temperature error in % from the above graphic can increase due to the additional factors,
depending on the measuring cell version (factor FMZ) and the Turn Down (factor FTD). The additional factors are listed in the following tables.
Additional factor through measuring cell version
Measuring cell version
Factor FMZ
Measuring cell - Standard
0.075 %, 0.1 %
0.2 %
1
3
Additional factor through Turn Down
The additional factor FTD through Turn down is calculated according to the following formula:
FTD = 0.5 x TD + 0.5
In the table, example values for typical Turn downs are listed.
Turn down
TD 1 : 1
TD 2.5 : 1
TD 5 : 1
TD 10 : 1
TD 20 : 1
Factor FTD
1
1.75
3
5.5
10.5
Long-term stability (according to DIN 16086)
Applies to the respective digital signal output (e.g. HART, Profibus PA) as well as to analogue current output 4 … 20 mA under reference conditions. Specifications refer to the set span. Turn down
(TD) is the ratio nominal measuring range/set span.8)
Long-term staibility - Ceramic/metallic measuring cell
Time period
One year
< 0.05 % x TD
Five years
< 0.1 % x TD
8)
With ceramic/metallic measuring cell with gold-coated diaphragm, the values must be multiplied with factor 3.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
53
9 Supplement
Time period
< 0.2 % x TD
Ten years
Long-term stability - Piezoresistive/Strain gauge measuring cell
Version
Measuring ranges > 1 bar
< 0.1 % x TD/year
Measuring ranges > 1 bar, isolating liquid, synthetic oil, < 0.15 % x TD/year
diaphragm Elgiloy (2.4711)
Measuring range 1 bar
< 0.15 % x TD/year
Measuring range 0.4 bar
< 0.35 % x TD/year
Process conditions - Piezoresistive/Strain gauge measuring cell
Process temperature
Seal
Sensor version
Standard
Without consideration of the
seal9)
FKM (VP2/A)
Hygienic fittings
Extended temperature range
pabs ≥ 1 mbar
pabs ≥ 1 mbar
-20/-40 … +105 °C
–
(-4/-40 … +221 °F)
pabs ≥ 10 mbar
–
–
-20 … +150 °C
Version for
oxygen applications
pabs ≥ 10 mbar
-20 … +60 °C
(-4 … +140 °F)
-20 … +105 °C
-20 … +150 °C
-20 … +85 °C
FFKM (Perlast
G75S)
-15 … +105 °C
-15 … +150 °C
-15 … +85 °C
-15 … +150 °C
-15 … +60 °C
FEPM (Fluoraz
SD890)
-5 … +105 °C
–
–
-5 … +60 °C
EPDM (A+P
70.10-02)
(-4 … +221 °F)
(+5 … +221 °F)
(-4 … +302 °F)
(+5 … +302 °F)
–
(+23 … +221 °F)
(-4 … +185 °F)
(+5 … +185 °F)
(-4 … +302 °F)
(+5 … +302 °F)
(+5 … +140 °F)
(+23 … +140 °F)
Temperature derating
9)
Process fittings acc. to DIN 3852-A, EN 837
54
WIKA Operating Instructions - Process pressure transmitter IPT-2x
9 Supplement
2
80 °C
(176 °F)
40 °C
(104 °F)
0 °C
(32 °F)
85 °C
(185 °F)
105 °C
(221 °F)
1
Fig. 29: Temperature derating IPT-2x, version up to +105 °C (+221 °F)
1
2
Process temperature
Ambient temperature
2
80 °C
(176 °F)
40 °C
(104 °F)
0 °C
(32 °F)
85 °C
(185 °F)
150 °C
(302 °F)
1
Fig. 30: Temperature derating IPT-2x, version up to +150 °C (+302 °F)
1
2
Process temperature
Ambient temperature
SIP process temperature (SIP = Sterilization in place)
Vapour stratification for 2 h10)
+150 °C (+302 °F)
Permissible process pressure
see specification "Process pressure" on the type label
Process pressure
Mechanical stress
Without cooling zone
With cooling zone
Version
All housing versions
Double chamber stainless steel
housing
All housing versions
Double chamber stainless steel
housing
Vibration resistance 1 to 4 g at
5 … 200 Hz according to EN 60068-2-6
(vibration with resonance)
4 g (GL characteristics 2)
0.7 g (GL characteristics 1)
4 g (GL characteristics 2)
0.7 g (GL characteristics 1)
Shock resistance
2.3 ms according to
EN 60068-2-27 (mechanical shock)
10)
50 g
50 g
20 g
Instrument configuration suitable for vapour
WIKA Operating Instructions - Process pressure transmitter IPT-2x
55
9 Supplement
Process conditions - Ceramic/metallic measuring cell
Process temperature
Version
Temperature range
pabs ≥ 50 mbar
Standard
pabs ≥ 10 mbar
pabs ≥ 1 mbar
-12 … +150 °C (+10 … +284 °F)
-12 … +180 °C
(+10 … +356 °F)
Extended temperature
range
-12 … +200 °C
(+10 … +392 °F)
-12 … +120 °C
(+10 … +248 °F)
-12 … +160 °C
(+10 … +320 °F)
Temperature derating
2
80 °C
(176 °F)
60 °C
(140 °F)
0 °C
(32 °F)
110 °C
(230 °F)
150 °C
(302 °F)
1
Fig. 31: Temperature derating IPT-2x, version up to +150 °C (+302 °F)
1
2
Process temperature
Ambient temperature
2
80 °C
(176 °F)
65 °C
(149 °F)
0 °C
(32 °F)
150 °C
(302 °F)
180 °C
(356 °F)
1
Fig. 32: Temperature derating IPT-2x, version up to +180 °C (+356 °F)
1
2
56
Process temperature
Ambient temperature
WIKA Operating Instructions - Process pressure transmitter IPT-2x
9 Supplement
2
80 °C
(176 °F)
65 °C
(149 °F)
0 °C
(32 °F)
160 °C
(320 °F)
200 °C
(392 °F)
1
Fig. 33: Temperature derating IPT-2x, version up to +200 °C (+392 °F)
1
2
Process temperature
Ambient temperature
Process pressure
Permissible process pressure
see specification "Process pressure" on the type label
Vibration resistance 1 to 4 g at
5 … 200 Hz according to EN 60068-2-6
(vibration with resonance)
4g
Mechanical stress11)
Shock resistance
50 g, 2.3 ms according to EN 60068-2-27 (mechanical
shock)12)
Ambient conditions
Version
Ambient temperature
Standard version
-40 … +80 °C (-40 … +176 °F) -60 … +80 °C (-76 … +176 °F)
Storage and transport temperature
Version IP 66/IP 68 (1 bar)
-20 … +80 °C (-4 … +176 °F)
-20 … +80 °C (-4 … +176 °F)
Version IP 68 (25 bar) with connection
cable PUR
-20 … +80 °C (-4 … +176 °F)
-20 … +80 °C (-4 … +176 °F)
Version IP 68 (25 bar), connection cable PE
-20 … +60 °C (-4 … +140 °F)
-20 … +60 °C (-4 … +140 °F)
Electromechanical data - version IP 66/IP 67 and IP 66/IP 68 (0.2 bar)13)
Options of the cable entry
ƲƲ Cable entry
M20 x 1.5; ½ NPT
ƲƲ Blind plug
M20 x 1.5; ½ NPT
ƲƲ Cable gland
ƲƲ Closing cap
M20 x 1.5; ½ NPT (cable ø see below table)
½ NPT
Material cable gland/Seal insert
PA/NBR
11)
12)
13)
Cable diameter
5 … 9 mm
6 … 12 mm
7 … 12 mm
●
●
–
Depending on the instrument version.
2 g with housing version stainless steel double chamber
IP 66/IP 68 (0.2 bar), only with absolute pressure.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
57
9 Supplement
Material cable gland/Seal insert
Cable diameter
5 … 9 mm
6 … 12 mm
7 … 12 mm
Brass nickel-plated/NBR
●
●
–
Stainless steel/NBR
–
–
●
Wire cross-section (spring-loaded terminals)
ƲƲ Massive wire, stranded wire
ƲƲ Stranded wire with end sleeve
0.2 … 2.5 mm² (AWG 24 … 14)
0.2 … 1.5 mm² (AWG 24 … 16)
Electromechanical data - version IP 68 (25 bar)
Connection cable transmitter - external housing, mechanical data
ƲƲ Configuration
Wires, strain relief, breather capillaries, screen braiding,
metal foil, mantle14)
ƲƲ Standard length
5 m (16.40 ft)
ƲƲ Min. bending radius at 25 °C/77 °F
25 mm (0.985 in)
ƲƲ Max. length
ƲƲ Diameter
ƲƲ Material
ƲƲ Colour
180 m (590.5 ft)
approx. 8 mm (0.315 in)
PE, PUR
Black, blue
Connection cable transmitter - external housing, electrical data
ƲƲ Wire cross-section
ƲƲ Wire resistance
Interface to the Master sensor
Data transmission
0.5 mm² (AWG 20)
0.037 Ω/m (0.012 Ω/ft)
Digital (I²C-Bus)
Connection cable Slave - Master, mechanical data
ƲƲ Configuration
Cores, strain relief, braided, metal foil, jacket
ƲƲ Standard length
5 m (16.40 ft)
ƲƲ Min. bending radius at 25 °C/77 °F
25 mm (0.985 in)
ƲƲ Max. length
ƲƲ Diameter
ƲƲ Material
ƲƲ Colour
25 m (82.02 ft)
approx. 8 mm (0.315 in), approx. 6 mm (0.236 in)
PE, PUR
Black
Connection cable Slave - Master, electrical data
ƲƲ Wire cross-section
ƲƲ Wire resistance
0.34 mm² (AWG 22)
< 0.05 Ω/m (0.015 Ω/ft)
Voltage supply for the complete system through Master
Operating voltage
ƲƲ UB min
ƲƲ UB min with lighting switched on
14)
12 V DC
16 V DC
Breather capillaries not with Ex-d version.
58
WIKA Operating Instructions - Process pressure transmitter IPT-2x
9 Supplement
ƲƲ UB max
Depending on signal output and version of the master
sensor
Potential connections and electrical separating measures in the instrument
Electronics
Not non-floating
Reference voltage15)
500 V AC
Conductive connection
Between ground terminal and metallic process fitting
Electrical protective measures16)
Housing material
Version
Protection acc. to
IEC 60529
Protection acc. to
NEMA
Plastic
IP 66/IP 67
Type 4x
Aluminium
IP 66/IP 67
Type 4x
Stainless steel (electro-polished) Single chamber
IP 66/IP 67
Type 4x
IP 66/IP 67
Type 4x
IP 68 (25 bar)
-
Stainless steel (precision casting)
Stainless steel
IP 66/IP 68 (0.2 bar)
IP 69K
IP 66/IP 68 (0.2 bar)
Transmitter for external housing
Altitude above sea level
ƲƲ by default
Type 6P
-
Type 6P
up to 2000 m (6562 ft)
ƲƲ with connected overvoltage protection up to 5000 m (16404 ft)
on the master sensor
Pollution degree17)
Protection rating (IEC 61010-1)
4
II
Approvals
Instruments with approvals can have deviating technical data (depending on the version). For such
instruments, the corresponding approval documents must be noted.
9.2
Calculation of the total deviation
The total deviation of a pressure transmitter indicates the maximum measurement error to be expected in practice. It is also called maximum practical deviation or operational error.
According to DIN 16086, the total deviation Ftotal is the sum of the basic deviation Fperf and the longterm stability Fstab:
Ftotal= Fperf + Fstab
The basic deviation Fperf consists of the thermal change of the zero signal and the output span FT as
well as the deviation FKl:
Fperf = √((FT)2 + (FKl)2)
The thermal change of zero signal and output span FT is specified in chapter "Technical data". The
15)
16)
17)
Galvanic separation between electronics and metal housing parts
Protection rating IP 66/IP 68 (0.2 bar) only in conjunction with absolute pressure.
When used with fulfilled housing protection.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
59
9 Supplement
basic temperature error FT is shown in a graphic. Depending on the measuring cell version and Turn
down, this value must be multiplied with the additional factors FMZ and FTD:
FT x FMZ x FTD
Also these values are specified in chapter "Technical data".
This applies for a digital signal output through HART, Profibus PA or Foundation Fieldbus.
With a 4 … 20 mA output, the thermal change of the current output Fa must be added:
Fperf = √((FT)2 + (FKl)2 + (Fa)2)
To provide a better overview, the formula symbols are listed together below:
•
•
•
•
•
•
•
•
Ftotal: Total deviation
Fperf: Basic deviation
Fstab: Long-term stability
FT: Thermal change of zero signal and output span (temperature error)
FKl: Deviation
Fa: Thermal change of the current output
FMZ: Additional factor measuring cell version
FTD: Additional factor Turn down
9.3
Data
Practical example
Level measurement in a small vessel, 500 mm height corresponds to 0.049 bar (4.9 KPa), superimposed pressure 0.35 bar (35 KPa), medium temperature 40 °C
IPT-2x Master and slave sensor each with nominal measuring range 0.4 bar (40 KPa), deviation
< 0.1 %, process fitting G1 (piezoresistive measuring cell)
The required values for the temperature error FT, deviation FKl and long-term stability Fstab are available in the technical data.
1. Calculation of the Turn down
TD = 0.4 bar/0.049 bar, TD = 8.2 : 1
2. Determination temperature error FT
The temperature error FT consists of the basic temperature error FTBasis , the additional factor measuring cell FMZ and the additional factor Turn Down FTD.
60
WIKA Operating Instructions - Process pressure transmitter IPT-2x
9 Supplement
0,9
0,75
0,6
F TBasis / % (TD 1:1)
0,45
0,3
0,15
-40 °C
-0,15
10 °C 20 °C
40 °C 50 °C
150 °C
100 °C
-0,3
-0,45
-0,6
-0,75
T / °C
-0,9
Fig. 34: Determination of the basic temperature error for the above example: FTBasis = 0.15 %
Accuracy class
Factor FMZ
In the compensated temperature range of 10 … +70 °C
0.075 %, 0.1 %
0.2 %
1
3
Tab. 19: Determination of the additional factor measuring cell for above example: FMZ = 1
The additional factor FTD through Turn down is calculated according to the following formula:
FTD = 0.5 x TD + 0.5, with TD = 8.2:1 of above calculation
FTD = 0.5 x 8.2 + 0.5 = 4.6
Determination of the temperature error master sensor for above example:
FT = FTBasis x FMZ x FTD
FT = 0.15 % x 1 x 4.6
FT = 0.69 %
The temperature error of each sensor is hence 0.69 %
3. Determination of deviation and long-term stability
The required values for deviation FKl and long-term stability Fstab are available in the technical data:
Accuracy class
Non-linearity, hysteresis and non-repeatability
TD ≤ 5 : 1
TD > 5 : 1
0.075 %
< 0.075 %
< 0.015 % x TD
0.1 %
< 0.1 %
< 0.02 % x TD
0.2 %
< 0.2 %
< 0.04 % x TD
Tab. 20: Determination of the deviation from the table: FKl = 0.02 % x TD = 0.02 % x 8.2 = 0.16 %
Version
Measuring ranges > 1 bar
< 0.1 % x TD/year
WIKA Operating Instructions - Process pressure transmitter IPT-2x
61
9 Supplement
Version
Measuring ranges > 1 bar, isolating liquid, synthetic oil, < 0.15 % x TD/year
diaphragm Elgiloy (2.4711)
Measuring range 1 bar
< 0.15 % x TD/year
Measuring range 0.4 bar
< 0.35 % x TD/year
Determination of the long-term stability from the table, consideration for one year: Fstab = 0.1 % x 8.2
= 0.82 %
4. Calculation of the total deviation
- 1. step: Basic accuracy Fperf
Fperf = √((FT)2 + (FKl)2)
FT = 0.69 %
FKl= 0.16 % (calculation of above table)
Fperf = √(0.69 %)2 + (0.16 %)2)
Fperf = 0.71 %
- 2. step: Total deviation Ftotal
Ftotal = Fperf + Fstab
Fperf = 0.71 % (result of step 1)
Fstab = 0.82 % (from top)
Ftotal = 0.71 % + 0.82 % = 1.53 %
The total deviation of each sensor is hence 1.53 %.
5. Calculation of the total deviation of the measuring system
Both sensors are included in the calculation of the total deviation of the measurig system. With
4 … 20 mA master sensors the thermal error of the analogue output is also added:
Ftotal = √(Ftotal-Master)2 + (Ftotal-Slave)2 + (Fa)2
0,3 %
0,15 %
-40°C
-20°C
20°C
-0,15 %
40°C
60°C
80°C
-0,3 %
Fig. 35: Fa through thermal change current output, in this example = 0.1 %
Ftotal = √(1.53 %)2 + (1.53 %)2 + (0.1 %)2)= 2.17 %
The total deviation of the measuring system is hence 2.17 %.
Deviation in mm: 2.17 % of 500 mm = 10.8 mm
The example shows that the measurement error in practice can be considerably higher than the
basic accuracy. Reasons are temperature influence and Turn down.
The thermal change of the current output is in this example is negligible.
62
WIKA Operating Instructions - Process pressure transmitter IPT-2x
9 Supplement
9.4
Dimensions
Housing
~ 59 mm
(2.32")
ø 80 mm
(3.15")
~ 116 mm
(4.57")
ø 84 mm
(3.31")
M20x1,5/
½ NPT
M20x1,5
M20x1,5/
½ NPT
~ 69 mm
(2.72")
ø 77 mm
(3.03")
ø 80 mm
(3.15")
M20x1,5/
½ NPT
4
104 mm
(4.1")
117 mm
(4.61")
~ 59 mm
(2.3")
M20x1,5/
½ NPT
3
2
1
112 mm
(4.41")
112 mm
(4.41")
116 mm
(4.57")
~ 69 mm
(2.72")
ø 77 mm
(3.03")
M20x1,5/
½ NPT
5
Fig. 36: Housing versions in protection IP 66/IP 67 and IP 66/IP 68 (0.2 bar)
1
2
3
4
5
Plastic single chamber (IP 66/IP 67)
Aluminium - single chamber
Stainless steel single chamber (electropolished)
Stainless steel single chamber (precision casting)
Stainless steel single chamber (electropolished) IP 69K
WIKA Operating Instructions - Process pressure transmitter IPT-2x
63
9 Supplement
External housing with IP 68 (25 bar) version
80 mm
(3.15")
82 mm
(3.23")
41,6 mm
(1.64")
1
59 mm
(2.32")
108 mm
(4.25")
3
41,6 mm
(1.64")
110 mm x 90 mm
(4.33" x 3.54")
2
~ 66 mm
(2.60")
90 mm
(3.54")
70 mm
(2.76")
3mm
(0.12")
4
51 mm
(2.01")
93 mm
(3.66")
110 mm
(4.33")
mm
3,5 ")
R 0.14
(
8 mm
(0.32")
110 mm x 90 mm
(4.33" x 3.54")
5
Fig. 37: IP 68 version with external housing
1
2
3
4
64
Lateral cable outlet
Axial cable outlet
Plastic housing
Stainless steel housing, electropolished
WIKA Operating Instructions - Process pressure transmitter IPT-2x
9 Supplement
ø 3 mm
(0.12")
(1.06")
G½
ø 6 mm
(0.24")
ø 3 mm
(0.12")
M20x1,5
ø 6 mm
(0.24")
ø 44,5 mm
(1.75")
SW 27mm
(1.06")
G½
2
G¼
ø 17,5 mm
(0.69")
4 mm
(0.16")
1
120 mm
(4.70")
SW 27mm
20 mm
(0.79")
3 mm
(0.12")
(1.06")
23 mm
(0.91")
58 mm
(2.28")
SW 27mm
ø 36 mm
(1.42")
5 mm
(0.20")
23 mm
(0.91")
ø 36 mm
(1.42")
58 mm
(2.28")
IPT-2x, threaded fitting not front-flush
ø 36 mm
(1.42")
(1.06")
½ NPT
19 mm
(0.75")
19 mm
(0.75")
¼ NPT
SW 27mm
14 mm
(0.55")
ø 36 mm
(1.42")
(1.06")
½ NPT
54 mm
(2.13")
SW 27mm
54 mm
(2.13")
3
4
5
Fig. 38: IPT-2x, threaded fitting not front-flush
1
2
3
4
5
G½ manometer connection (EN 837)
M20 x 1.5 manometer connection (EN 837)
G½ A inside G¼ (ISO 228-1)
½ NPT, inside ¼ NPT (ASME B1.20.1)
½ NPT PN 1000
For the version with "Second Line of Defense", the measure of length increases by 17 mm (0.67 in).
WIKA Operating Instructions - Process pressure transmitter IPT-2x
65
9 Supplement
IPT-2x, threaded fitting front-flush
20,5 mm
(0.81")
ø 18mm
(0.71")
1
ø 30 mm
(1.18")
2
SW 46mm
(1.81")
ø 40 mm
(1.57")
SW 46mm
(1.81")
78 mm
(3.07")
79 mm
(3.11")
ø 36 mm
(1.42")
21 mm
(0.83")
21 mm
(0.83")
4
ø 55 mm
(2.17")
3
ø 40 mm
(1.57")
SW 46mm
(1.81")
1½ NPT
M44x1,25
M44x1,25
ø 40 mm
(1.59")
G1½
22 mm
(0.87")
20,5 mm
(0.81")
G1
ø 36 mm
(1.42")
SW 46mm
(1.81")
78 mm
(3.07")
59 mm
(2.32")
58 mm
(2.28")
G½
79 mm
(3.11")
ø 36 mm
(1.42")
SW 41mm
(1.61")
ø 40 mm
(1.59")
5
22 mm
(0.87")
ø 36 mm
(1.42")
SW 27mm
(1.06")
ø 55 mm
(2.17")
6
Fig. 39: IPT-2x, threaded fitting front-flush
1
2
3
4
5
6
G½ (ISO 228-1) with O-ring
G1 (ISO 228-1) with O-ring
G1½ (DIN3852-A)
M44 x 1.25
3 and 4 with temperature adapter and screen sheet for 180 °C/200 °C
1½ NPT (ASME B1.20.1)
For the version with "Second Line of Defense", the measure of length increases by 17 mm (0.67 in).
66
WIKA Operating Instructions - Process pressure transmitter IPT-2x
9 Supplement
IPT-2x, hygienic fitting 150 °C (piezoresistive/strain gauge measuring cell)
ø 64 mm
(2.52")
ø 36 mm
(1.42")
79 mm
(3.11")
ø 36 mm
(1.42")
79 mm
(3.11")
79 mm
(3.11")
ø 36 mm
(1.42")
ø 84 mm
(3.31")
ø 78 mm
(3.07")
1
2
ø 36 mm
(1.42")
ø 78 mm
(3.05")
4
82 mm
(3.23")
79 mm
(3.11")
ø 36 mm
(1.42")
79 mm
(3.11")
ø 36 mm
(1.42")
3
ø 92 mm
(3.60")
5
ø 65 mm
(2.56")
ø 105 mm
(4.13")
6
Fig. 40: IPT-2x, hygienic fitting 150 °C (piezoresistive/strain gauge measuring cell)
1
2
3
4
5
6
Clamp 2" PN16 (ø64mm) DIN 32676, ISO 2852
Hygienic fitting with compression nut F 40 PN 25
Varivent N 50-40 PN 25
Collar socket DN 40 PN 40, DIN 11851
Collar socket DN 50 PN 25 Form A, DIN 11864
DRD PN 40
For the version with "Second Line of Defense", the measure of length increases by 17 mm (0.67 in).
WIKA Operating Instructions - Process pressure transmitter IPT-2x
67
9 Supplement
ø 64 mm
(2.52")
1
3
2
83 mm
(3.27")
78 mm
(3.07")
ø 84 mm
(3.31")
ø 78 mm
(3.07")
78 mm
(3.07")
78 mm
(3.07")
78 mm
(3.07")
78 mm
(3.07")
IPT-2x, hygienic fitting 150 °C (metallic/ceramic measuring cell)
ø 78 mm
(3.07")
ø 78 mm
(3.07")
4
5
ø 66 mm
(2.60")
6
Fig. 41: IPT-2x, hygienic fitting 150 °C (metallic/ceramic measuring cell)
1
2
3
4
5
6
Clamp 2" PN16 (ø64mm) DIN 32676, ISO 2852
Hygienic fitting with compression nut F 40 PN 25
Varivent N 50-40 PN 25
Collar socket DN 40 PN 40, DIN 11851
Collar socket DN 50 PN 25 Form A, DIN 11864
DRD PN 40
For the version with "Second Line of Defense", the measure of length increases by 17 mm (0.67 in).
68
WIKA Operating Instructions - Process pressure transmitter IPT-2x
9 Supplement
d2
b
f
80 mm
(3.15")
IPT-2x, flange connection 150 °C (piezoresistive/strain gauge measuring cell)
d4
k
RL
D
d5
mm
1
DN
PN
D
b
k
d2
d4
f
RL
d5
40
40
150
18
110
4xø18
88
3
-
-
50
40
165
20
125
4xø18
102
3
-
-
80
40
200
24
160
8xø18
138
3
-
-
100
40
235
24
190
8xø22
162
3
-
-
150
16
285
22
240
8xø22
212
3
-
-
50
40
165
20
125
4xø18
102
3
3
4
-
inch
1
2
40
40
5.91" 0.71" 4.33" 4xø 0.71" 3.47" 0.12"
-
50
40
6.50" 0.79" 4.92" 4xø 0.71" 4.02" 0.12"
-
-
80
40
7.87" 0.95" 6.30" 8xø 0.71" 5.43" 0.12"
-
-
100
40
9.25" 0.95" 7.48" 8xø 0.87" 6.38" 0.12"
-
-
150
16
11.22" 0.87" 9.45" 8xø 0.87" 8.35" 0.12"
-
-
50
40
6.50" 0.79" 4.92" 4xø 0.71" 4.02" 0.12"
3
4
-
-
-
-
2“ 150 lbs
6.00" 0.75" 4.75" 4xø 0.75" 3.62"
0.06"
3“ 150 lbs
7.50" 0.94"
0.06"
6“
4xø 0.75"
5“
Fig. 42: IPT-2x, flange connection 150 °C (piezoresistive/strain gauge measuring cell)
1
2
3
4
Flange connection according to DIN 2501
Flange connection according to ASME B16.5
Order-specific
Order-specific
For the version with "Second Line of Defense", the measure of length increases by 17 mm (0.67 in).
WIKA Operating Instructions - Process pressure transmitter IPT-2x
69
9 Supplement
82 mm
(3.23")
IPT-2x, flange connection 180 °C/200 °C (ceramic/metallic measuring cell)
121 mm
(4.76")
3
4
f
b
d2
RL
d4
k
D
d5
mm
1
DN
PN
D
b
k
d2
d4
f
RL
d5
40
40
150
18
110
4xø18
88
3
-
-
50
40
165
20
125
4xø18
102
3
-
-
80
40
200
24
160
8xø18
138
3
-
-
100
40
235
24
190
8xø22
162
3
-
-
150
40
300
28
250
8xø26
218
3
-
-
50
40
165
20
125
4xø18
102
3
5
6
-
inch
1
2
40
40
5.91" 0.71" 4.33" 4xø 0.71" 3.47" 0.12"
-
50
40
6.50" 0.79" 4.92" 4xø 0.71" 4.02" 0.12"
-
-
80
40
7.87" 0.95" 6.30" 8xø 0.71" 5.43" 0.12"
-
-
100
40
9.25" 0.95" 7.48" 8xø 0.87" 6.38" 0.12"
-
-
150
40
11.81" 1.10" 9.84" 8xø 1.02" 8.58" 0.12"
-
-
50
40
6.50" 0.79" 4.92" 4xø 0.71" 4.02" 0.12"
5
6
-
-
-
-
2“ 150 lbs
5.91" 0.77" 4.75" 4xø 0.75" 3.62"
0.12"
3“ 150 lbs
7.48" 0.96"
0.12"
6“
4xø 0.75"
5“
Fig. 43: IPT-2x, flange connection 180 °C/200 °C (ceramic/metallic measuring cell)
1
2
3
4
5
6
Flange connection according to DIN 2501
Flange connection according to ASME B16.5
Temperature adapter up to 180 °C
Temperature screen sheet up to 200 °C
Order-specific
Order-specific
For the version with "Second Line of Defense", the measure of length increases by 17 mm (0.67 in).
70
WIKA Operating Instructions - Process pressure transmitter IPT-2x
9 Supplement
9.5
Trademark
All the brands as well as trade and company names used are property of their lawful proprietor/
originator.
WIKA Operating Instructions - Process pressure transmitter IPT-2x
71
INDEX
INDEX
A
Adjustment 32, 33, 34, 35, 36
––Level 37
––Unit 30
AI FB1 Function Block 38
C
Channel 38
Characteristic values of the differential pressure
transmitter 41
Connection
––Steps 25
––Technology 24
Current output 40
E
Electrical connection 24
F
Fault rectification 42
Functional principle 9
G
Gas-tight leadthrough (Second Line of Defense)
15
L
Linearisation 38
M
Maintenance 42
Measurement setup
––Density measurement 20
––Differential pressure measurement 18
––Interface measurement 19
––Level measurement 17, 21
P
Parameterization example 31
Peak value indicator 39
Position correction 30
Pressure compensation 16
––Ex d 15
––Second Line of Defense 15
––Standard 15
S
Seal concept 11
Set display parameters 39
Simulation 39, 40
72
WIKA Operating Instructions - Process pressure transmitter IPT-2x
Notes
WIKA Operating Instructions - Process pressure transmitter IPT-2x
73
Notes
74
WIKA Operating Instructions - Process pressure transmitter IPT-2x
Notes
WIKA Operating Instructions - Process pressure transmitter IPT-2x
75
Printing date:
All statements concerning scope of delivery, application, practical use and operating conditions of the sensors and processing
systems correspond to the information available at the time of
printing.
76
Process pressure transmitter IPT-2x
55740-EN-190320
WIKA Alexander Wiegand SE & Co. KG
Alexander-Wiegand-Straße 30
63911 Klingenberg
Germany
Phone (+49) 9372/132-0
Fax (+49) 9372 132-406
E-mail: info@wika.de
www.wika.de
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement