WIKA DPT-10 Operating instructions

WIKA DPT-10 Operating instructions
Operating Instructions
Differential pressure transmitter DPT-10
Metallic measurement diaphragm
4 … 20 mA
Differential pressure transmitter DPT-10
Contents
Contents
1
About this document
1.1 Function............................................................................................................................ 4
1.2 Target group...................................................................................................................... 4
1.3 Symbols used................................................................................................................... 4
2
For your safety
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 Safety label on the instrument........................................................................................... 6
2.6 EU conformity.................................................................................................................... 6
2.7 Fulfillment of NAMUR recommendations.......................................................................... 6
2.8 Installation and operation in the USA and Canada............................................................ 6
2.9 Safety instructions for oxygen applications........................................................................ 6
3
Product description
3.1 Configuration..................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 8
3.3 Adjustment...................................................................................................................... 11
3.4 Packaging, transport and storage.................................................................................... 11
4
Mounting
4.1 General instructions for use of the instrument................................................................. 12
4.2 Instructions for oxygen applications................................................................................ 13
4.3 Mounting and connection instructions............................................................................. 13
4.4 Measurement setup - Flow.............................................................................................. 17
4.5 Measurement setup level................................................................................................ 20
4.6 Measurement setup density and interface....................................................................... 24
4.7 Measurement setup differential pressure........................................................................ 26
4.8 Mounting external housing.............................................................................................. 28
4.9 Installation control........................................................................................................... 29
5
Connecting to power supply
5.1 Preparing the connection................................................................................................ 30
5.2 Connection procedure..................................................................................................... 31
5.3 Single chamber housing.................................................................................................. 32
5.4 Double chamber housing................................................................................................ 33
5.5 Double chamber housing Ex d ia..................................................................................... 34
5.6 Version IP 66/IP 68, 1 bar................................................................................................ 35
5.7 Switch-on phase............................................................................................................. 36
6
Adjustment with the display and adjustment module
6.1 Short description............................................................................................................. 37
6.2 Insert display and adjustment module............................................................................. 37
6.3 Adjustment system.......................................................................................................... 38
6.4 Set parameters................................................................................................................ 39
6.5 Menu schematic.............................................................................................................. 54
6.12 Saving the parameterisation data.................................................................................... 56
7
Setup
7.1 General instructions........................................................................................................ 57
2
WIKA Operating Instructions - Differential pressure transmitter DPT-10
Contents
7.2
7.3
7.4
7.5
Flow measurement.......................................................................................................... 57
Level measurement......................................................................................................... 59
Density and interface measurement................................................................................ 61
Differential pressure measurement................................................................................. 61
8
Maintenance and fault rectification
8.1 Maintenance................................................................................................................... 62
8.2 Rectify faults.................................................................................................................... 62
8.3 Instrument repair............................................................................................................. 63
9
Dismount
9.1 Dismounting steps.......................................................................................................... 64
9.2 Disposal.......................................................................................................................... 64
10 Supplement
10.1 Technical data................................................................................................................. 65
10.2 Dimensions, versions process component...................................................................... 74
10.3 Trademark....................................................................................................................... 80
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 manual.
Editing status: 2017-08-21
WIKA Operating Instructions - Differential pressure transmitter DPT-10
3
1 About this document
1
About this document
1.1
Function
1.2
Target group
1.3
Symbols used
This operating instructions manual provides all the information you
need for mounting, connection and setup of the instrument. Furthermore there are 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 specialist
personnel. The contents of this manual should be made available to
these personnel and put into practice by them.
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.
Ex applications
This symbol indicates special instructions for Ex applications.
•
→
1
SIL applications
This symbol indicates instructions for functional safety which must be
taken into account particularly for safety-relevant 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 - Differential pressure transmitter DPT-10
2 For your safety
2
For your safety
2.1
Authorised personnel
2.2
Appropriate use
Mount and set up the pressure transmitter only if you know the applicable national regulations and have the appropriate qualification. You
must be aquainted with the regulations and instructions for hazardous areas, measurement and control technology as well as electrical
circuits because the pressure transmitter is "electrical equipment"
according to EN 50178. Depending on the application conditions, it
is necessary that you have appropriate knowledge, e.g. concerning
corrosive products or high pressure.
DPT-10 is a differential pressure transmitter for measurement of flow,
level, differential pressure, density and interface.
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.
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.
2.3
Warning about incorrect use
2.4
General safety instructions
Inappropriate or incorrect use of the instrument can give rise to
application-specific hazards, e.g. vessel overfill or damage to system
components through incorrect mounting or adjustment. Thus damage to property, to persons or environmental contamination can be
caused. Also the protective characteristics of the instrument can be
influenced.
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.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
5
2 For your safety
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 looked up in this
operating instructions manual.
2.5
Safety label on the instrument
2.6
EU conformity
2.7
Fulfillment of NAMUR recommendations
2.8
Installation and operation in the USA and
Canada
The safety approval markings and safety tips on the device must be
observed.
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.
The device fulfills the requirements of the applicable NAMUR recommendations.
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
2.9
Safety instructions for oxygen applications
For instruments in oxygen applications the special instructions in
chapters "Storage and transport", "Mounting" as well as "Technical
data" under "Process conditions"must be noted. Furthermore the valid
national regulations, implementation instructions and memorandums
of the professional assocations must be noted.
6
WIKA Operating Instructions - Differential pressure transmitter DPT-10
3 Product description
3
Scope of delivery
3.1
Configuration
The scope of delivery encompasses:
•
•
•
•
Constituent parts
Product description
DPT-10 differential pressure transmitter
Depending on the version, ventilation valves and/or screw plugs
(details see chapter "Dimensions")
Optional accessory
Documentation
–– This operating instructions manual
–– Test certificate for pressure transmitters
–– Operating instructions "Display and adjustment module"
(optional)
–– Ex-specific "Safety instructions" (with Ex versions)
–– If necessary, further certificates
The following illustration shows the components of DPT-10:
1
2
3
+ –
Fig. 1: DPT-10 in basic version
1
2
3
Housing cover, optionally with integrated display and adjustment module
Housing with electronics
Process component with measuring cell
The components are available in different versions.
The type label contains the most important data for identification and
use of the instrument:
WIKA Operating Instructions - Differential pressure transmitter DPT-10
7
3 Product description
1
2
3
4
10
5
6
7
8
9
Fig. 2: Layout of the type label (example)
1
2
3
4
5
6
7
8
9
10
Application area
Instrument type
Place for approvals
Measuring range
Signal output/Operating voltage
Process pressure - Process temperature
Seal material
Product code
Order number
Serial number of the instrument
ID numbers, instrument documentation
3.2
Principle of operation
DPT-10 is a differential pressure transmitter for measurement of flow,
level, differential pressure, density and interface. Measured products
are gases, vapours and liquids.
Flow measurement
Q ~ ∆p
+
p1
Q
–
p2
Q ~ ∆p
+
p1
–
p2
Q
1
2
Fig. 3: Flow measurement with DPT-10 and DP flow element, Q = flow, Δp =
differential pressure, Δp = p1 - p2
1
2
8
Orifice
Pitot tube
WIKA Operating Instructions - Differential pressure transmitter DPT-10
3 Product description
Level measurement
–
h
–
∆p
h= ρ g
+
+ –
+
1
2
3
Fig. 4: Level measurement with DPT-10. Δp = differential pressure, ρ = density
of the medium, g = acceleration of gravity
1
2
3
Basic version with effective pressure lines
Version with flange chemical seal
Version with capillaries and cell chemical seals
Differential pressure measurement
2
+
1
Fig. 5: Differential pressure measurement with DPT-10
1
2
Filter
DPT-10
Density measurement
h
–
=
∆p
h g
+
1
Fig. 6: Density measurement with DPT-10, h = defined mounting distance, Δp =
differential pressure, ρ = density of the medium, g = acceleration of gravity
1
DPT-10
WIKA Operating Instructions - Differential pressure transmitter DPT-10
9
3 Product description
h
Interface measurement
3
–
2
+
1
Fig. 7: Interface measurement with DPT-10
1
2
3
Functional principle
DPT-10
Liquid with higher density
Liquid with lower density
A metallic measuring cell is used as sensor element. The process
pressures are transmitted via the separating diaphragms and filling
oils to a piezoresistive measuring element (resistance measuring
bridge in semi-conductor technology).
The difference between the acting pressures changes the bridge voltage. This change is measured, further processed and converted into
a corresponding output signal.
1
p1
2
3
4
p2
Fig. 8: Configuration metallic measuring cell
1 Measuring element
2 Overload diaphragm/Middle diaphragm
3 Filling oil
4 Separating diaphragms
p1, p2
Process pressures
The markings "+" and "-" on the process component in chapter
"Mounting and connection instructions" must therefore be noted when
connecting to the process. The pressure acting on "+" goes positive,
the pressure acting on "-" goes negative into the calculation of the
pressure difference.
Voltage supply
4 … 20 mA two-wire electronics for voltage supply and measured
value transmission on the same cable.
The supply voltage range can differ depending on the instrument version. The exact range is stated in chapter "Technical data".
The backlight of the display and adjustment module is powered by
the sensor. The prerequisite for this is a supply voltage at a certain
10
WIKA Operating Instructions - Differential pressure transmitter DPT-10
3 Product description
level. The exact voltage specifications are stated in chapter "Technical
data".
3.3
Adjustment
The instrument can be adjusted with the following adjustment media:
•
Packaging
With the display and adjustment module
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.
Caution:
Instruments for oxygen applications are sealed in PE foil and provided
with a label "Oxygen! Use no Oil". Remove this foil just before mounting the instrument! See instruction under "Mounting".
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
•
•
•
•
•
•
•
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 an instrument weight of more than 18 kg (39.68 lbs) suitable and
approved equipment must be used for lifting and carrying.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
11
4 Mounting
4
Mounting
4.1
General instructions for use of the instrument
Suitability for the process Make sure that all parts of the instrument coming in direct contact
conditions
with the process, especially the sensor element, process seal and
process fitting, are suitable for the existing process conditions, such
as process pressure, process temperature as well as the chemical
properties of the medium.
You can find the specifications or references in chapters "Technical data", "Dimensions, versions process component" and on the
nameplate.
Suitability for the ambient The instrument is suitable for standard and extended ambient condiconditions
tions acc. to DIN/EN/IEC/ANSI/ISA/UL/CSA 61010-1.
Moisture
Use the recommended cables (see chapter "Connecting to power
supply") and tighten the cable gland.
You can give your instrument additional protection against moisture
penetration by leading the connection cable downward in front of the
cable entry. Rain and condensation water can thus drain off. This applies mainly to outdoor mounting as well as installation in areas where
high humidity is expected (e.g. through cleaning processes) or 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.
Ventilation
The ventilation for the electronics housing is realised via a filter element in the vicinity of the cable glands.
1
2
1
Fig. 9: Position of the filter element with single and double chamber housing
1
2
Filter element for ventilation of the electronics housing
Blind plug
Information:
Make sure that the filter element is always free of buildup during operation. A high-pressure cleaner may not be used for cleaning.
DP flow element
12
DP flow elements are calculated for certain pipeline and operating
data. Therefore, check the pipeline data before installation at the
measuring point and compare the measurement loop number.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
4 Mounting
Detailed instructions for mounting the DP flow element are stated in
DIN EN ISO 5167 as well as in the instrument documentation from the
respective manufacturer.
Effective pressure lines
When wiring the effective pressure lines outdoors, make sure that
you use a suitable antifreeze, e.g. by using a heat tracing. Wire the
effective pressure lines with a monotonous gradient of at least 10 %.
Effective pressure lines for gases must remain dry, condensate must
be avoided. Effective pressure lines for liquids must be completely
filled and ventilated.
General recommendations for wiring of effective pressure lines are
stated in the corresponding national and international standards.
Vibrations
In case of strong vibrations at the application position, the instrument
version with external electronics should be used.
Temperature limits
Higher process temperatures often mean also higher ambient temperatures for electronics and connection cable. 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.
Oxygen applications
4.2
Instructions for oxygen applications
Oxygen and other gases can be explosive when brought into contact
with oils, grease and plastics, so the following measures must also be
taken:
•
•
All components of the plant, such as e.g. measuring instruments must be cleaned according to the requirements of BAM
(DIN 19247)
Depending on the seal material, certain temperatures and pressures must not be exceeded in oxygen applications, see chapter
"Technical data"
Danger:
Instruments for oxygen applications must be unpacked just before
mounting. After removing the protective cover of the process fitting,
the label "O2" will be visible on the process fitting. Penetration of oil,
grease and dirt should be avoided. Danger of explosion!
Connection plus/minus
side
4.3
Mounting and connection instructions
When connecting the DPT-10 to the measurement loop, take note
of the plus/minus side of the process component. The plus side is
marked with a "+", the minus side with a "-" on the process component next to the oval flanges.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
13
4 Mounting
+ –
2
1
Fig. 10: Marking for plus/minus side on the process component
1
2
Mounting arrangement
Plus side
Minus side
The following illustration shows the elements for a tube mounting and
an example for a mounting arrangement with valve block.
1 2
3
4
5
6
7
8
9
10
Fig. 11: Mounting arrangement with tube mounting
1
2
3
4
5
6
7
8
9
10
Valve blocks
14
Strap for tube mounting
Mounting bracket
Ventilation valve
Fixing screws
DPT-10
PTFE seal
Valve block
Oval flange adapter
Fixing screws
Effective pressure line
Valve blocks enable the simple installation and setup of the differential
pressure transmitter. They separate the pressure transmitter from the
process side and enable also a check of the measurement loop. They
WIKA Operating Instructions - Differential pressure transmitter DPT-10
4 Mounting
are available as 3-fold and 5-fold version. The integrated equalization
valve enables a pressure compensation between plus and minus side
during the setup. Thanks to the valve block it is possible to dismount
the DPT-10 without interrupting the process. This means higher plant
availability and simpler setup or maintenance.
The 3-fold valve block with flanging on both sides enables a mechanically stable connection between the DPT-10 and e.g. the tapping
points or the flange plate of a pitot tube. With the five-fold valve block,
two additional valves allow blowing out the process lines or checking
the DPT-10 in installed condition.
3-fold valve block
The following illustration shows the connection of the 3-fold valve
block.
A
A:
3
5
1
2
1
3
4
2
5 4
2
Fig. 12: Connection of a 3-fold valve block
1
2
3
4
5
Process fitting
Process fitting
Inlet valve
Inlet valve
Breather valve
WIKA Operating Instructions - Differential pressure transmitter DPT-10
15
4 Mounting
3-fold valve block, flanging on both sides
The following illustration shows the connection of the 3-fold valve
block, flanging on both sides.
A
A:
3
1
2 5 2
1
3
5 4
4
2
Fig. 13: Connection of a 3-fold valve block, flanging on both sides
1
2
3
4
5
5-fold valve block
16
Process fitting
Process fitting
Inlet valve
Inlet valve
Breather valve
The following illustration shows the connection of the 5-fold valve
block.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
4 Mounting
A
7
A:
9
3 1
2
5
8
2
4 6
3
4
5
1
7
9 8
2
6
Fig. 14: Connection of a 5-fold valve block
1
2
3
4
5
6
7
8
9
In gases
Process fitting
Process fitting
Check/Ventilate
Check/Ventilate
Valve for checking/ventilating
Valve for checking/ventilating
Inlet valve
Inlet valve
Breather valve
4.4
→
Measurement setup - Flow
Mount DPT-10 above the measurement loop so that condensate
can drain off in the process cable.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
17
4 Mounting
1
2
3
+
–
4
Fig. 15: Measurement setup with flow measurement of gases, connection via
3-fold valve block
1
2
3
4
DPT-10
3-fold valve block
Blocking valves
Orifice or impact pressure probe
1
2
+
3
Fig. 16: Measurement setup with flow measurement of gases, connection via
3-fold valve block, flanging on both sides
1
2
3
In vapours
.
.
.
18
DPT-10
3-fold valve block, flanging on both sides
Orifice or impact pressure probe
Mount DPT-10 below the measurement loop
Mount condensate vessels at the same height with the discharge
socket and at the same distance to DPT-10
Fill the effective pressure lines to the height of the condensate
vessels before setup
WIKA Operating Instructions - Differential pressure transmitter DPT-10
4 Mounting
1
3
2
+
5
4
–
3
5
6
Fig. 17: Measurement setup, flow measurement in vapours
1
2
3
4
5
6
In liquids
Condensate vessels
Orifice or impact pressure probe
Blocking valves
DPT-10
Drain or blow-off valves
3-fold valve block
When using a 5-fold valve block, the drain or blow-off valves are
already integrated.
.
.
.
Mount DPT-10 below the measurement loop so that the effective
pressure lines are always filled with liquid and gas bubbles can
bubble up to the process line
For measurements in products with solid content such as e.g.
dirty liquids, the installation of separators and drain valves is
recommended to enable collection and removal of debris and
sediment.
Fill the effective pressure lines to the height of the condensate
vessels before setup
WIKA Operating Instructions - Differential pressure transmitter DPT-10
19
4 Mounting
1
2
3
+
2
–
4
4
5
5
6
Fig. 18: Measurement setup, flow measurement in liquids
1
2
3
4
5
6
In open vessels with effective pressure line
Orifice or impact pressure probe
Blocking valves
DPT-10
Precipitator
Drain valves
3-fold valve block
4.5
.
.
.
Measurement setup level
Mount DPT-10 below the lower measurement connection so that
the effective pressure lines are always filled with liquid
Minus side is open to the atmospheric pressure
When measuring liquids with solid content, the mounting of separators and drain valves is useful to be able to avoid and remove
buildup.
patm
+
min.
4
5
patm 1
2
3
Fig. 19: Measurement setup, level measurement in the open vessel
1
2
3
4
5
20
DPT-10
Minus side is open to the atmospheric pressure
Blocking valve
Precipitator
Drain valve
WIKA Operating Instructions - Differential pressure transmitter DPT-10
4 Mounting
In open vessels with
single chemical seal
.
.
Mount DPT-10 directly to the vessel
Minus side is open to the atmospheric pressure
patm
min.
1
+
+ –
patm 2
Fig. 20: Measurement setup, level measurement in the open vessel
1
2
In closed vessels with effective pressure lines
.
.
.
DPT-10
Minus side is open to the atmospheric pressure
Mount DPT-10 below the lower measurement connection so that
the effective pressure lines are always filled with liquid
Connect minus side always above the max. level
For measurements in products with solid content such as e.g.
dirty liquids, the installation of separators and drain valves is
recommended to enable collection and removal of debris and
sediment.
max.
min.
–
+
1
1
2
3
3
4
4
5
Fig. 21: Measurement setup, level measurement in closed vessel
1
2
3
4
5
Blocking valves
DPT-10
Precipitator
Drain valves
3-fold valve block
WIKA Operating Instructions - Differential pressure transmitter DPT-10
21
4 Mounting
In closed vessels with
single chemical seal
.
Mount DPT-10 directly to the vessel
.
For measurements in products with solid content such as e.g.
dirty liquids, the installation of separators and drain valves is
recommended to enable collection and removal of debris and
sediment.
.
Connect minus side always above the max. level
1
–
max.
min.
2
+ –
+
3
4
Fig. 22: Measurement setup, level measurement in closed vessel
1
2
3
4
In closed vessels with
double chemical seal
.
.
Blocking valve
Precipitator
Drain valve
DPT-10
Mount DPT-10 below the lower chemical seal
The ambient temperature should be the same for both capillaries
Information:
Level measurement is only ensured between the upper edge of the
lower and the lower edge of the upper chemical seal.
–
max.
min.
+
1
Fig. 23: Measurement setup, level measurement in closed vessel
1
In closed vessels with
.
steam layering with effective pressure line
.
22
DPT-10
Mount DPT-10 below the lower measurement connection so that
the effective pressure lines are always filled with liquid
Connect minus side always above the max. level
WIKA Operating Instructions - Differential pressure transmitter DPT-10
4 Mounting
.
.
The condensate vessel ensures a constant pressure on the
minus side
For measurements in products with solid content such as e.g.
dirty liquids, the installation of separators and drain valves is
recommended to enable collection and removal of debris and
sediment.
max.
min.
–
1
2
+
2
3
4
5
5
6
Fig. 24: Measurement setup in closed vessel with superimposed steam
1
2
3
4
5
6
In closed vessels with
.
superimposed steam with .
single chemical seal
.
.
Condensate vessel
Blocking valves
DPT-10
Precipitator
Drain valves
3-fold valve block
Mount DPT-10 directly to the vessel
Connect minus side always above the max. level
The condensate vessel ensures a constant pressure on the
minus side
For measurements in products with solid content such as e.g.
dirty liquids, the installation of separators and drain valves is
recommended to enable collection and removal of debris and
sediment.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
23
4 Mounting
max.
–
1
2
min.
3
+ –
+
5
4
Fig. 25: Measurement setup in closed vessel with superimposed steam
1
2
3
4
5
Condensate vessel
Blocking valve
Precipitator
Drain valve
DPT-10
4.6
Density measurement
Measurement setup density and interface
In a vessel with varying level and homogeneous density distribution,
density measurement with a differential pressure transmitter can be
realized. The connection to the vessel is made via a chemical seal on
two measuring points. To reach a high accuracy, the distance between
these points must be as big as possible. The density measurement is
only ensured with a level above the upper measuring point. If the level
drops below the upper measuring point, the density measurement is
interrupted.
This density measurement functions with open but also with closed
vessels. Make sure that small density changes cause only small
changes to the measured differential pressure. Select a suitable
measuring range.
The density measurement is carried out in the mode level measurement.
.
.
Mount DPT-10 below the lower chemical seal
The ambient temperature should be the same for both capillaries
Example for a density measurement:
Distance between the two measurement points: 0.3 m
Min. density: 1000 kg/m³
Max. density: 1200 kg/m³
Measured differential pressure: Δp = ρ • g • h
The min. adjustment is carried out for the differential pressure measured at density 1.0:
Δp = ρ • g • h
= 1000 kg/m³ • 9.81 m/s2 • 0,3 m
= 2943 Pa = 29.43 mbar
24
WIKA Operating Instructions - Differential pressure transmitter DPT-10
4 Mounting
The max. adjustment is carried out for the differential pressure measured at density 1.2:
Δp = ρ • g • h
= 1200 kg/m³ • 9.81 m/s2 • 0.3 m
= 3531 Pa = 35.31 mbar
0,3 m
–
=
∆p
h g
+
Fig. 26: Measurement setup with density measurement
Interface measurement
In a vessel with varying level, an interface measurement with a differential pressure transmitter can be realized. The connection on the
vessel is carried out via a chemical seal on two measuring points.
An interface measurement is only possible if the densities of the two
products remain the same and the interface is always between the
two measuring points. The total level must always be above the upper
measuring point.
This density measurement functions with open but also with closed
vessel.
Example for an interface measurement:
Distance between the two measurement points: 0.3 m
Min. density: 800 kg/m³
Max. density: 1000 kg/m³
The min. adjustment is carried out for the differential pressure occuring with density 0.8:
Δp = ρ • g • h
= 800 kg/m³ • 9.81 m/s • 0.3 m
= 2354 Pa = 23.54 mbar
The max. adjustment is carried out for the differential pressure occuring with density 1.0:
Δp = ρ • g • h
= 1000 kg/m³ • 9.81 m/s • 0.3 m
= 2943 Pa = 29.43 mbar
.
.
Mount DPT-10 below the lower chemical seal
The ambient temperature should be the same for both capillaries
WIKA Operating Instructions - Differential pressure transmitter DPT-10
25
4 Mounting
0,3 m
0,8
1,0
–
+
1
Fig. 27: Measurement setup with interface measurement
In gases and vapours
4.7
→
Measurement setup differential pressure
Mount DPT-10 above the measurement loop so that condensate
can drain off in the process cable.
1
2
+
3
4
3
4
Fig. 28: Measurement setup with differential pressure measurement between
two pipelines in gases and vapours
1
2
3
4
In vapour and condensate plants
26
→
DPT-10
3-fold valve block
Blocking valves
Pipelines
Mount DPT-10 below the measurement loop so that some condensate can collect in the effective pressure lines.
The ventilation is carried out via the ventilation valves on the instrument, the 5-fold valve block enables blowing out the cables.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
4 Mounting
4
3
4
3
1
6
2
5
Fig. 29: Measurement setup with differential pressure measurement between a
vapour and a condensate cable
1
2
3
4
5
6
In liquids
.
.
Vapour cable
Condensate cable
Blocking valves
Condensate vessels
5-fold valve block
DPT-10
Mount DPT-10 below the measurement loop so that the effective
pressure lines are always filled with liquid and gas bubbles can
bubble up to the process line
For measurements in products with solid content such as e.g.
dirty liquids, the installation of separators and drain valves is
recommended to enable collection and removal of debris and
sediment.
2
1
+
3
–
2
4
4
5
5
6
Fig. 30: Measurement setup, flow measurement in liquids
1
2
3
4
5
6
E.g. filter
Blocking valves
DPT-10
Precipitator
Drain valves
3-fold valve block
WIKA Operating Instructions - Differential pressure transmitter DPT-10
27
4 Mounting
When chemical seal
systems are used in all
products
.
.
.
Mount chemical seal with capillaries on top or laterally on the
pipeline
In vacuum applications: Mount DPT-10 below the measurement
loop
The ambient temperature should be the same for both capillaries
1
2
+
2
–
3
4
Fig. 31: Measurement setup, differential pressure measurement in gases,
vapours and liquids
1
2
3
4
Chemical seal with slotted nut
Capillaries
E.g. filter
DPT-10
4.8
Mounting external housing
1. Mark the holes according to the following drilling template
2. Depending on the mounting surface, fasten the wall mounting
plate with 4 screws
90 mm (3.54")
70 mm (2.76")
3 mm
(0.12")
8 mm
(0.32")
93 mm (3.66")
110 mm (4.33")
mm
,5 ")
R3 0.14
(
Fig. 32: Drilling template - wall mounting plate
28
WIKA Operating Instructions - Differential pressure transmitter DPT-10
4 Mounting
Mount the wall mounting plate so that the cable entry of the socket
housing points downward. The socket housing can be displaced by
180° to the wall mounting plate.
4.9
Installation control
Check the following after mounting the instrument:
•
•
Did you tighten all screws?
Closing screws and ventilation valves closed
WIKA Operating Instructions - Differential pressure transmitter DPT-10
29
5 Connecting to power supply
5
Note safety instructions
Connecting to power supply
5.1
Preparing the connection
Always keep in mind the following safety instructions:
•
•
Connect only in the complete absence of line voltage
If overvoltage surges are expected, overvoltage arresters should
be installed
Take note of safety
instructions for Ex
applications
In hazardous areas you must take note of the respective regulations,
conformity and type approval certificates of the sensors and power
supply units.
Select power supply
Power supply and current signal are transmitted via the same twowire connection cable. The supply voltage range can differ depending
on the instrument version. The exact range is stated in the "Technical
data" in the "Supplement".
Provide a reliable separation between the supply circuit and the
mains circuits according to DIN EN 61140 VDE 0140-1.
Keep in mind the following additional influences on the operating
voltage:
•
•
Select connection cable
Output voltage of the power supply unit can be lower under nominal load (with a sensor current of 20.5 mA or 22 mA in case of fault
message)
Influence of additional instruments in the circuit (see load values in
chapter "Technical data")
The instrument is connected with standard two-wire cable without
screen. If electromagnetic interference is expected which is above the
test values of EN 61326 for industrial areas, screened cable should
be used.
Use cable with round cross-section. A cable outer diameter of
5 … 9 mm (0.2 … 0.35 in) ensures the seal effect of the cable gland.
If you are using cable with a different diameter or cross-section,
exchange the seal or use a suitable cable gland.
Cable screening and
grounding
If screened cable is required, connect the cable screen on both ends
to ground potential. In the sensor, the screen must be connected
directly to the internal ground terminal. The ground terminal on the
outside of the housing must be connected to the potential equalisation (low impedance).
If potential equalisation currents are expected, the connection on the
processing side must be made via a ceramic capacitor (e. g. 1 nF,
1500 V). The low-frequency potential equalisation currents are thus
suppressed, but the protective effect against high frequency interference signals remains.
Warning:
Considerable potential differences exist inside galvanic plants as well
as vessels with cathodic corrosion protection. Very large equalisation currents can flow through the cable screen when the screen
30
WIKA Operating Instructions - Differential pressure transmitter DPT-10
5 Connecting to power supply
is grounded on both ends. To avoid this, the cable screen must be
connected to ground potential only on one end (inside the switching cabinet) in such applications. The cable screen must not be
connected to the internal ground terminal in the sensor and the outer
ground terminal on the housing not to potential equalisation!
Information:
The metallic parts of the instrument such as transmitter and process
fitting are conductively connected with the inner and outer ground
terminal on the housing. This connection exists either as a direct metallic contact or via the shielding of the special connection cable on
instruments with external electronics. You can find specifications on
the potential connections within the instrument in chapter "Technical
data".
Select connection
cable for Ex applications
Single/Double chamber
housing
Take note of the corresponding installation regulations for Ex applications. In particular, make sure that no potential equalisation currents
flow over the cable screen. In case of grounding on both sides this
can be achieved by the use of a capacitor or a separate potential
equalisation.
5.2
Connection procedure
Proceed as follows:
1. Unscrew the housing lid
2. If a display and adjustment module is installed, remove it by turning it to the left
3. Loosen compression nut of the cable gland and remove blind
plug
4. Remove approx. 10 cm of the cable mantle, strip approx. 1 cm
insulation from the individual wires
5. Insert the cable into the sensor through the cable entry
6. Lift the opening levers of the terminals with a screwdriver (see
following illustration)
7. Insert the wire ends into the open terminals according to the wiring plan
8. Press down the opening levers of the terminals, you will hear the
terminal spring closing
9. Check the hold of the wires in the terminals by lightly pulling on
them
10. Connect the screen to the internal ground terminal, connect the
external ground terminal to potential equalisation
11. Tighten the compression nut of the cable entry gland. The seal
ring must completely encircle the cable
12. Screw the housing lid back on
The electrical connection is finished.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
31
5 Connecting to power supply
Fig. 33: Connection steps 6 and 7
5.3
Single chamber housing
Electronics and terminal
compartment
4...20mA
1
1
Display
2
2
Fig. 34: Electronics and terminal compartment, single chamber housing
1
2
32
Spring-loaded terminals for voltage supply
Ground terminal for connection of the cable screen
WIKA Operating Instructions - Differential pressure transmitter DPT-10
5 Connecting to power supply
Wiring plan
4...20mA
1
Display
2
1
Fig. 35: Wiring plan - single chamber housing
1
Voltage supply/Signal output
5.4
Double chamber housing
Display
Terminal compartment
2
1
1
2
I2C
3
Fig. 36: Terminal compartment - double chamber housing
1
2
3
Spring-loaded terminals for voltage supply
Plug connector for VEGACONNECT (I²C interface)
Ground terminal for connection of the cable screen
WIKA Operating Instructions - Differential pressure transmitter DPT-10
33
5 Connecting to power supply
Wiring plan
I2C
1
2
1
Fig. 37: Wiring plan - double chamber housing
1
Voltage supply, signal output
5.5
Double chamber housing Ex d ia
Electronics compartment
Display
1
2
I²C
1
5 6 7 8
3
2
Fig. 38: Electronics compartment, double chamber housing
1
2
3
34
Plug connector for service
Internal connection cable to the connection compartment
Terminals for the external display and adjustment unit
WIKA Operating Instructions - Differential pressure transmitter DPT-10
5 Connecting to power supply
Terminal compartment
4...20mA
(+)1
2
2(-)
1
Fig. 39: Connection compartment - Ex-d-ia double chamber housing
1
2
Voltage supply, signal output
Ground terminal for connection of the cable screen
Plug M12 x 1 for external
display and adjustment
unit
4
3
1
2
Fig. 40: Top view of the plug connector
1
2
3
4
Wire assignment, connection cable
Pin 1
Pin 2
Pin 3
Pin 4
Contact pin
Colour, connection ca- Terminal, electronics
ble in the sensor
module
Pin 1
Brown
5
Pin 2
White
6
Pin 3
Blue
7
Pin 4
Black
8
5.6
Version IP 66/IP 68, 1 bar
1
2
Fig. 41: Wire assignment, connection cable
1
2
Brown (+) and blue (-) to power supply or to the processing system
Shielding
WIKA Operating Instructions - Differential pressure transmitter DPT-10
35
5 Connecting to power supply
Switch-on phase
5.7
Switch-on phase
After connecting DPT-10 to power supply or after a voltage recurrence, the instrument carries out a self-check for approx. 30 seconds:
•
•
•
Internal check of the electronics
Indication of the instrument type, the firmware as well as the sensor TAGs (sensor designation)
Output signal jumps briefly (approx. 10 seconds) to the set fault
current
Then the corresponding current is outputted to the cable (the value
corresponds to the actual level as well as the settings already carried
out, e.g. factory setting).
36
WIKA Operating Instructions - Differential pressure transmitter DPT-10
6 Adjustment with the display and adjustment module
6
Function/Configuration
Adjustment with the display and
adjustment module
6.1
Short description
The display and adjustment module is used for measured value
display, adjustment and diagnosis. It can be mounted in the following
housing versions and instruments:
•
•
All sensors DPT-10 and IPT-1*, in the single as well as double
chamber housing (optionally in the electronics or connection
compartment)
External display and adjustment unit
Note:
You can find detailed information on adjustment in the operating
instructions manual "Display and adjustment module".
Mount/dismount display
and adjustment module
6.2
Insert display and adjustment module
The display and adjustment module can be inserted and removed at
any time. It is not necessary to interrupt the voltage supply.
For installation, proceed as follows:
1. Unscrew the housing lid
2. Place the display and adjustment module in the desired position
on the electronics (you can choose any one of four different positions - each displaced by 90°)
3. Press the display and adjustment module onto the electronics
and turn it to the right until it snaps in
4. Screw housing lid with inspection window tightly back on
Disassembly is carried out in reverse order.
The display and adjustment module is powered by the sensor, an additional connection is not necessary.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
37
6 Adjustment with the display and adjustment module
Fig. 42: Insert display and adjustment module
Note:
If you intend to retrofit the instrument with a display and adjustment
module for continuous measured value indication, a higher lid with an
inspection glass is required.
6.3
Adjustment system
1
2
Fig. 43: Display and adjustment elements
1
2
3
38
LC display
Indication of the menu item number
Adjustment keys
WIKA Operating Instructions - Differential pressure transmitter DPT-10
6 Adjustment with the display and adjustment module
Key functions
•
•
•
•
[OK] key:
–– Move to the menu overview
–– Confirm selected menu
–– Edit parameter
–– Save value
[->] key to select:
–– Menu change
–– Select list entry
–– Select editing position
[+] key:
–– Change value of the parameter
[ESC] key:
–– Interrupt input
–– Jump to next higher menu
Adjustment system
The instrument is operated via the four keys of the display and adjustment module. The individual menu items are shown on the LC display.
You can find the functions of the individual keys in the previous
illustration.
Time functions
When the [+] and [->] keys are pressed quickly, the edited value,
or the cursor, changes one value or position at a time. If the key is
pressed longer than 1 s, the value or position changes continuously.
When the [OK] and [ESC] keys are pressed simultaneously for more
than 5 s, the display returns to the main menu. The menu language is
then switched over to "English".
Approx. 60 minutes after the last pressing of a key, an automatic reset
to measured value indication is triggered. Any values not confirmed
with [OK] will not be saved.
Introduction
6.4
Set parameters
DPT-10 has general adjustment parameters which are also used for
other measuring principles as well as instrument-specific adjustment
parameters. The general adjustment parameters are described in the
operating instructions manual "Display and adjustment module".
The instrument-specific adjustment parameters are described in this
chapter.
Information:
If the adjustment limits of the adjustment parameters are exceeded,
the message "Outside parameter limits" appears. The editing procedure can be aborted with [ESC] or the displayed limit value can be
accepted with [OK].
Basic adjustmen - Application
The DPT-10 can be used for differential pressure, level, flow as well as
density and interface measurement. The selection of the respective
application is carried out in the menu item "Application". Dependent
on the selected application, the adjustment is carried out as zero/
span or min./max. adjustment.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
39
6 Adjustment with the display and adjustment module
Information:
The applications density and interface measurement are also realized
via the application level measurement.
Proceed as follows to switch over to the application differential pressure or flow measurement:
1. Push the [OK] button in the measured value display, the menu
overview is displayed.
▶ Basic adjustment
Display
Diagnostics
Service
Info
2. Confirm the menu "Basic adjustment" with [OK].
Application
Level ▼
3. Confirm the menu item "Application" with [OK].
Warning:
Note the warning: "Output can change".
4. Select with [->] "OK" and confirm with [OK].
5. Select the requested application in the selection list, for example
"Flow" and confirm with [OK].
Basic adjustment - Unit
In this menu item you select the adjustment unit as well as the unit for
the temperature indication in the display.
To select the adjustment unit (in the example switching over from
mbar to bar), proceed as follows:
1. Push the [OK] button in the measured value display, the menu
overview is displayed.
▶ Basic adjustment
Display
Diagnostics
Service
Info
2. Confirm the menu "Basic adjustment" with [OK], the menu item
"Unit" will be displayed.
Unit
Unit of measurement
mbar ▼
Temperature unit
°C ▼
3. Activate the selection with [OK] and select "Units of measurement with [->].
4. Activate the selection with [OK] and select the requested unit with
[->] (in the example bar).
5. Confirm with [OK] and move to position correction with [->].
40
WIKA Operating Instructions - Differential pressure transmitter DPT-10
6 Adjustment with the display and adjustment module
The adjustment unit is thus switched over from mbar to bar.
Information:
When switching over to adjustment in a height unit (for example for
level measurement), the density also has to be entered.
Proceed as follows to enter the density:
1. Push the [OK] button in the measured value display, the menu
overview is displayed.
2. Confirm the menu "Basic adjustment" with [OK], the menu item
"Units of measurement" will be displayed.
3. Activate the selection with [OK] and select the requested unit with
[->] (in the example m).
4. Confirm with [OK], the submenu "Density unit" appears.
Unit of measurement
Density unit
▶ kg/dm³
pcf
5. Select the requested unit, e.g. kg/dm³ with [->] and confirm with
[OK], the submenu "Density" appears.
Unit of measurement
Density
0001000
kg/dm³
6. Enter the requested density value with [->] and [+], confirm with
[OK] and move to position correction with [->].
The adjustment unit is thus switched over from bar to m.
Proceed as follows to select the temperature unit:
.
Activate the selection with [OK] and select "Temperature unit
with [->].
.
Activate the selection with [OK] and select the requested unit with
[->] (e.g. °F).
.
Confirm with [OK].
The temperature unit is hence switched over from °C to °F.
Basic adjustment - Position correction
The position correction compensates the influence of the installation
position of the instrument on the measured value. In this menu item,
the offset value as well as the current measured value are displayed.
Proceed as follows:
1. Activate in the menu item "Position correction" the selection with
[OK].
Position correction
Offset
=
0.0000 bar
0.0035 bar
DP
2. Select with [->], e.g. to accept the actual measured value
0.0035 bar.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
41
6 Adjustment with the display and adjustment module
Position correction
Accept current measured
value?
▶ Accept
Edit
3. Confirm with [OK].
Position correction
Offset
=
-0.0035 bar
0.0000 bar
DP
4. Move to min. (zero) adjustment with [->].
The current measured value was corrected to 0, the corrective value
is available in the display as offset value with sign reversal.
If a known value should be taken over as position correction which is
not the current value, then you have to select the function "Edit" and
enter the requested value.
Basic adjustment - Zero
adjustment with differential pressure
In this menu item, the min. differential pressure is entered.
Proceed as follows:
1. Edit the bar value in the menu item "zero" with [OK].
Zero adjustment
0.00 %
=
0.0000 bar
0.0000 bar
DP
2. Set the requested value with [+] and [->].
3. Confirm with [OK] and move to span adjustment with [->].
For an adjustment with pressure, simply enter the actual measured
value indicated at the bottom of the display.
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.
Basic adjustment - Span
adjustment with differential pressure
In this menu item, the max. differential pressure is entered.
Proceed as follows:
1. Edit the bar value in the menu item "span" with [OK].
Span adjustment
100.00 %
=
0.5000 bar
0.0000 bar
DP
Information:
If the instrument has not yet been adjusted, the displayed pressure for
100 % corresponds to the nominal measuring range of the sensor (in
the above example 500 mbar).
42
WIKA Operating Instructions - Differential pressure transmitter DPT-10
6 Adjustment with the display and adjustment module
2. Set the requested value with [+] and [->].
3. Confirm with [OK] and move to the menu overview with [ESC].
For an adjustment with pressure, simply enter the actual measured
value indicated at the bottom of the display.
The span adjustment is finished.
Basic adjustment - Min.
adjustment with level
Proceed as follows:
1. Edit the % value in the menu item "Min. adjustment" with [OK].
Min. adjustment
0.00 %
=
0.0000 bar
0.0000 bar
2. Set the requested value with [+] and [->].
3. Confirm with [OK] and edit the requested bar value.
4. Set the requested bar value with [+] and [->].
5. Confirm with [OK] and move to max. adjustment with [->].
For an adjustment with filling, simply enter the actual measured value
indicated at the bottom of the display.
The min. adjustment is finished.
Basic adjustment - Max.
adjustment with level
Proceed as follows:
1. Edit the % value in the menu item "Max. adjustment" with [OK].
100.00 %
=
0.5000 bar
0.0000 bar
Information:
If the instrument has not yet been adjusted, the displayed pressure for
100 % corresponds to the nominal measuring range of the sensor (in
the above example 500 mbar).
2. Set the requested value with [->] and [OK].
3. Confirm with [OK] and edit the requested mbar value.
4. Set the requested value with [+] and [->].
5. Confirm with [OK] and move to the menu overview with [ESC].
For an adjustment with filling, simply enter the actual measured value
indicated at the bottom of the display.
The max. adjustment is finished.
Basic adjustment - Min.
adjustment with density
For the min. adjustment with density, a filling of the vessel is not
necessary. The numeric examples are stated in chapter Mounting,
Measurement setup, Density and interface of this instructions manual.
Proceed as follows:
1. Edit the % value in the menu item "Min. adjustment" with [OK].
WIKA Operating Instructions - Differential pressure transmitter DPT-10
43
6 Adjustment with the display and adjustment module
Min. adjustment
0.00 %
=
0.0000 bar
0.0000 bar
2. Set the requested value with [+] and [->], for example 100 %.
3. Confirm with [OK] and edit the requested bar value.
4. Set the requested bar value with [+] and [->], for example
29.4 mbar.
5. Confirm with [OK] and move to max. adjustment with [->].
For an adjustment with filling, simply enter the actual measured value
indicated at the bottom of the display.
The min. adjustment is finished.
Basic adjustment - Max.
adjustment with density
For the max. adjustment with density, a filling of the vessel is not
necessary. The numeric examples are stated in chapter Mounting,
Measurement setup, Density and interface of this instructions manual.
Proceed as follows:
1. Edit the % value in the menu item "Max. adjustment" with [OK].
100.00 %
=
0.1000 bar
0.0000 bar
Information:
If the instrument has not yet been adjusted, the displayed pressure for
100 % corresponds to the nominal measuring range of the sensor (in
the above example 100 mbar).
2. Set the requested value with [->] and [OK], for example 0.0 %.
3. Confirm with [OK] and edit the requested mbar value.
4. Set the requested value with [+] and [->], for example 35.3 mbar.
5. Confirm with [OK] and move to the menu overview with [ESC].
For an adjustment with filling, simply enter the actual measured value
indicated at the bottom of the display.
The max. adjustment is finished.
Basic adjustment - Min.
adjustment with flow
Proceed as follows:
1. Edit the bar value in the menu item "Min. adjustment" with [OK].
Min. adjustment
0.00 %
=
-
0.0000 bar
0.0000 bar
+
DP
2. Set the requested bar value with [+] and [->].
3. Confirm with [+] and move to max. adjustment with [->].
For an adjustment with flow, simply enter the actual measured value
indicated at the bottom of the display.
44
WIKA Operating Instructions - Differential pressure transmitter DPT-10
6 Adjustment with the display and adjustment module
Information:
The DPT-10 is also suitable for bidirectional flow measurement (flow
in both directions). The selection is carried out in the menu item
"Linearization curve". With the bidirectional flow measurement, the
min. adjustment value must be equal to the negative max. adjustment
value.
Example: Max. adjustment value +100 mbar, as min. adjustment
value, -100 mbar must hence be entered.
The min. adjustment is finished.
Basic adjustment - Max.
adjustment with flow
Proceed as follows:
1. Edit the bar value in the menu item "Max. adjustment" with [OK].
Max. adjustment
100.00 %
=
0.5000 bar
0.0000 bar
-
+
DP
Information:
If the instrument has not yet been adjusted, the displayed pressure for
100 % corresponds to the nominal measuring range of the sensor (in
the above example 500 mbar).
2. Set the requested mbar value with [->] and [OK].
3. Confirm with [OK] and move to the menu overview with [ESC].
For an adjustment with flow, simply enter the actual measured value
indicated at the bottom of the display.
The max. adjustment is finished.
Menu section, basic adjustment
Basic adjustment - Damp- To damp process-dependent measured value fluctuations, set an
ing
integration time of 0 … 999 s in this menu item.
Depending on the sensor type, the factory setting is 0 s or 1 s.
Damping
0s
Basic adjustment Linearization curve with
level
For level measurement, a linearization is necessary for all vessels in
which the vessel volume does not increase linearly with the level - e.g.
in a cylindrical or spherical tank - and the indication or output of the
volume is requested.
Respective linearisation curves are stored for these vessels. They
indicate the relation between the percentage level and the vessel volume. By activating the suitable curve, the percentage vessel volume
is displayed correctly.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
45
6 Adjustment with the display and adjustment module
Linearisation curve
Linear
Enter the requested parameters via the appropriate keys, save your
settings and jump to the next menu item with the [->] key.
Caution:
Note the following if the DPT-10 with corresponding approval is used
as part of an overfill protection system according to WHG (Water
Resources Act):
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.
The square of the flow is proportional to the pressure difference at the
Basic adjustment - Linearization curve with flow orifice or the back pressure probe:
(Qn)2 = c • ∆p
To provide a linear relation between flow and output variable, an
extraction by root is necessary:
Qn = √(c • ∆p)
The DPT-10 has a root extraction function. It is selected in the menu
item "Linearization curve".
Linearisation curve
Linear
Enter the requested parameters via the appropriate keys, save your
settings and jump to the next menu item with the [->] key.
Information:
When selecting flow bidirectional, the min. adjustment must be entered with negative sign.
Basic adjustment - Leak
flow volume suppression
with flow
In some application, small flow quantities should not be detected.
With the creeping quantity suppression, the flow value can be suppressed up to a certain % value. The default value is 5 % of the max.
flow value, corresponding to 0.25 % of the max. differential pressure
value. The limit value is 50 %. This function depends on the selected
linearization function and is only available with root extracted characteristics.
The square root/bidirectional square root characteristics is very steep
at the zero point. This means that small changes in the measured
differential pressure cause big changes in the output signal. The leak
volume suppression stabilises the signal output.
Basic adjustment - Sensor TAG
46
In the menu item "Sensor-TAG" you edit a 12-digit measurement loop
name. An unambiguous designation can hence be assigned to the
WIKA Operating Instructions - Differential pressure transmitter DPT-10
6 Adjustment with the display and adjustment module
sensor, e.g. the measurement loop name or the tank or product designation. In digital systems and in the documentation of larger plants,
a singular designation should be entered for exact identification of
individual measuring sites.
The available digits include:
•
•
•
Letters from A … Z
Numbers from 0 … 9
Special characters +, -, /, -
Factory setting is "Sensor".
Sensor-TAG
Sensor
Display - Indicated value
In the menu item "Display" you can define how the measured value
should be presented on the display.
The following indication values are available:
•
•
•
•
•
•
•
Height
Pressure (only with pressure transmitters)
Current
Scaled
Percent
Lin. percent
Temperature
•
•
•
•
•
Height
Ground
Flow
Volume
Without unit
The selection "scaled" opens the menu items "Display unit" and
"Scaling". In "Display unit" there are the following options:
Depending on selection, the different units are in turn available.
In the menu item "Scaling", the requested numerical value with decimal point is entered for 0 % and 100 % of the measured value.
There is the following relationship between the indication value in the
menu "Display" and the adjustment unit in the menu "Device settings":
•
With pressure, the displayed value "Pressure" or "Height" means:
presentation of the measured value in the selected adjustment
unit, e.g. bar or m.
Displayed value
Scaled
WIKA Operating Instructions - Differential pressure transmitter DPT-10
47
6 Adjustment with the display and adjustment module
Display unit
Volume
l
Scaling
0 % = 0.0 l
100 % = 100.0 l
Display - Backlight
An integrated background lighting can be switched on via the adjustment menu.
The function depends on the height of the operating voltage, see
operating instructions of the respective sensor.
In the default setting, the lightning is switched on.
Diagnosis - Peak value
The respective min. and max. measured values are saved in the sensor. The values are displayed in the menu item "Peak values".
•
•
Min. and max. pressure1)
Min. and max. temperature2)
Peak value indicator
Diagnostics - Device
status
The instrument status is displayed in this menu item. If no failure is
detected by the sensor, "OK" will be displayed. If a failure is detected,
there will be a sensor-specific flashing fault signal, for example
"E013". The failure is also displayed in clear text, for example "No
measured value available".
Information:
The fault message as well as the clear text indication are also carried
out in the measured value display.
Meas. certainty
Sensor status
Diagnostics - Trend curve Available with the trend curve:
•
•
•
1)
2)
48
"X-Zoom": Resolution in minutes, hours or days
"Stop/Start": Interrupt a recording or start a new recording
"Unzoom": Reset the resolution to minutes
Pressure: -50 … +150 % of the nominal measuring range.
Temperature: -50 … +150 °C.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
6 Adjustment with the display and adjustment module
Trend curve
Diagnosis - Total amounts The DPT-10 has two internal totalizers. For both you can adjust volcounter and subtotalizer ume or mass as count function as well as separately the unit.
with flow
Proceed as follows:
1. Select, for example, menu item "Part sum counter".
Part sum counter
0.0000 1000
gal
Modify settings?
2. Activate the function "Modify settings?" with [OK].
Part sum counter
▶ DP flow element
Unit
3. Confirm with [OK] "DP flow element".
Part sum counter
▶ Mass flow
▶ Volume flow
Without unit
4. Select the requested variable with [->] and confirm with [OK].
5. Select calibration unit of the DP flow element with [->], for example m3/s and confirm with [OK].
Part sum counter
0 % = +0000
m3/s=
100 % = +0000
m3/s=
6. Edit with [OK] and set the requested values with [+] and [->].
7. Confirm with [OK] and jump back to the indication of the part sum
counter.
8. Select with [->] the unit of the sum counter, adjust the requested
unit with [->], for example m3/s and confirm with [OK].
The setting of the part sum counter is hence terminated, the counting
function is activated.
The procedure of the total sum counter is the same.
Service - Current output
In the menu item "Current output" you determine the behaviour of the
current output during operation and in case of failure. The following
options are available:
WIKA Operating Instructions - Differential pressure transmitter DPT-10
49
6 Adjustment with the display and adjustment module
Current output
Characteristics
4 … 20 mA
Failure mode3)
Hold value
20 … 4 mA
20.5 mA
22 mA
< 3.6 mA
Min. current
4)
Max. current
3.8 mA
4 mA
5)
20 mA
20.5 mA
The values in bold font represent the data of the factory setting.
In HART multidrop mode, the current is constantly 4 mA. This value
does not change even in case of failure.
Current output
Characteristic: 4-20 mA ▼
Failure mode: 22 mA ▼
Min. current 3.8 mA ▼
Menu section, service
Service - Simulation
In this menu item you simulate a user-defined level or pressure value
via the current output. This allows you to test the signal path, e.g.
through connected indicating instruments or the input card of the
control system.
The following simulation variables are available:
•
•
•
Percent
Current
Pressure
With Profibus PA sensors, the selection of the simulated value is
made via the "Channel" in the menu "Basic adjustments".
How to start the simulation:
1. Push [OK]
2. Select the requested simulation variable with [->] and confirm
with [OK].
3. Set the requested numerical value with [+] and [->].
4. Push [OK]
The simulation is now running, with 4 … 20 mA/HART a current is
outputted and with Profibus PA or Foundation Fieldbus a digital value.
How to interrupt the simulation:
→
3)
4)
5)
50
Push [ESC]
Value of the current output in case of failure, e.g. if no valid measured value is
delivered.
This value is not underrun during operation.
This value is not exceeded during operation.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
6 Adjustment with the display and adjustment module
Information:
The simulation is automatically terminated 10 minutes after the last
pressing of a key.
Simulation
Start simulation?
Service - Reset
Basic adjustment
The reset "Basic adjustment" resets the values of the following menu
items to the reset values (see table):
Menu section
Menu item
Reset value
Basic settings
Zero/Min. adjustment
Measuring range begin
Display
Diagnostics
Service
Span/Max. adjustment
Measuring range end
Density
1 kg/l
Density unit
kg/l
Damping
1s
Linearisation
Linear
Sensor-TAG
Sensor
Displayed value
Differential pressure
Display unit
Mass/kg
Scaling
0.00 to 100.0
Decimal point indication
8888.8
Totalizer
0.0000 1000 gal
Part sum counter
0.0000 1000 gal
Current output - characteristics
4 … 20 mA
Current output - failure
mode
< 3.6 mA
Current output - min.
current
3.8 mA
Current output - max.
current
20.5 mA
The values of the following menu items are not reset with "Reset:
Menu section
Menu item
Reset value
Basic settings
Unit of measurement
bar
Temperature unit
°C
Position correction
No reset
Backlight
No reset
Display
WIKA Operating Instructions - Differential pressure transmitter DPT-10
51
6 Adjustment with the display and adjustment module
Menu section
Menu item
Reset value
Service
Language
No reset
HART mode
No reset
Application
No reset
Peak value indicator
The min. and max. temperature or pressure values are each reset to
the actual value.
Totalizer
The total and part sum counter are reset to zero.
Service - Language
The sensor is already set to the ordered national language. In this
menu item you can change the language. The following languages are
available, e.g. in software version 3.50:
•
•
•
•
•
•
•
•
•
Deutsch
English
Français
Espanõl
Pycckuu
Italiano
Netherlands
Japanese
Chinese
Language
German
Service - Copy sensor
data
This function enables uploading parameter adjustment data into the
display and adjustment module as well as downloading parameter
adjustment data into the sensor. A detailed description of the function
is available in the operating instructions manual "Display and adjustment module".
The following data are loaded or downloaded with this function:
•
•
•
•
•
•
•
•
•
•
•
•
•
Measured value presentation
Application
Adjustment
Damping
Linearisation curve
Leak flow volume suppression
Sensor-TAG
Displayed value
Display unit
Scaling
Current output
Unit of measurement
Language
The following safety-relevant data are not uploaded or downloaded:
52
WIKA Operating Instructions - Differential pressure transmitter DPT-10
6 Adjustment with the display and adjustment module
•
•
HART mode
PIN
Copy sensor data
Copy sensor data?
Service - PIN
In this menu item, the PIN is activated/deactivated permanently.
Entering a 4-digit PIN protects the sensor data against unauthorized
access and unintentional modifications. If the PIN is activated permanently, it can be deactivated temporarily (i.e. for approx. 60 min.) in
any menu item. The instrument is delivered with the PIN set to 0000.
PIN
Disable permanently?
Only the following functions are permitted with activated PIN:
•
•
Info
Select menu items and show data
Read data from sensor into the display and adjustment module.
In this menu item the most important sensor information can be
displayed:
•
•
Instrument type
Serial number: 8-digit number, e.g. 12345678
Instrument type
Serial number
•
•
Date of manufacture: Date of the factory calibration
Software version: Edition of the sensor software
Date of manufacture
Software version
•
Date of last change using PC: Date of the last change of sensor
parameters via PC
Last change using PC
•
Sensor details, e.g. approval, process fitting, seal, measuring cell,
measuring range, electronics, housing, cable entry, plug, cable
length etc.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
53
6 Adjustment with the display and adjustment module
Sensor characteristics
Display now?
6.5
Menu schematic
Information:
Depending on the version and application, the highlighted menu
windows may not always be available.
Basic adjustment differential pressure
▶ Basic adjustment
1
Display
Diagnostics
Service
Info
Application
1.1
Differential pressure ▼
Unit
Unit of measurement
1.1
bar ▼
Temperature unit
1.4
100.00 %
=
Damping
1.2
-0.0035 bar
DP
1.5
Linearisation curve
1.6
▶ Linear
Zero
1.3
000.0 %
=
0.0000 bar
DP
Sensor-TAG
1.7
0.0000 bar
0.0000 bar
Horizontal cylindrical tank
1s
DP
0.5000 bar
Offset
=
°C ▼
Span
Position correction
Sensor
Spherical tank
0.0000 bar
User programmable
Basic adjustment flow
▶ Basic adjustment
1
Display
Diagnostics
Service
Info
Application
1.1
Flow ▼
Unit
Unit of measurement
1.1
bar ▼
Temperature unit
1.4
=
-
100.00 %
+
0.5000 bar
DP
Sensor-TAG
1.8
Damping
-0.0035 bar
DP
Linearisation curve
1.6
▶ Linear
Extracted by root
Bidirectionally linear
▼
0.0000 bar
1.2
0.0000 bar
1.5
1s
Offset
=
°C ▼
Max. adjustment
Position correction
Min. adjustment
1.3
=
-
000.0 %
+
0.0000 bar
DP
Creeping distance
suppres.
1.7
0.0000 bar
Activated ▼
Sensor
54
WIKA Operating Instructions - Differential pressure transmitter DPT-10
6 Adjustment with the display and adjustment module
Basic setting level
▶ Basic adjustment
Display
1
Diagnostics
Service
Info
Application
1.1
Level ▼
Unit
Unit of measurement
1.1
bar ▼
Temperature unit
100.00 %
1.4
Damping
=
1.2
-0.0035 bar
DP
1.5
Linearisation curve
1.6
▶ Linear
Min. adjustment
000.0 %
=
0.0000 bar
Sensor-TAG
Horizontal cylindrical tank
1.7
Sensor
Spherical tank
0.0000 bar
1.3
0.0000 bar
0.0000 bar
1s
0.5000 bar
Offset
=
°C ▼
Max. adjustment
Position correction
User programmable
Display
Basic adjustment
▶ Display
2
Diagnostics
Service
Info
Displayed value
2.1
Differential pressure ▼
Backlight
Displayed value ▼
2.1
Display unit
2.2
Volume ▼
Scaled
l▼
Scaling
0 % = 0.0
2.3
l
100 % = 100.0
l
2.4
Switched off ▼
Diagnostics
Basic adjustment
Display
3
▶ Diagnostics
Service
Info
Peak value indicator
p-min.: -5.8 mbar
3.1
p-max.: 167.5 mbar
Sensor status
3.2
OK
T-min.: -12.5 °C
Trend curve
Start trend curve?
0.0000 1000
Totalizer
0.0000 1000
3.4
gal
Modify settings?
T-max.: +85.5 °C
Part sum counter
3.3
3.5
gal
Modify settings?
WIKA Operating Instructions - Differential pressure transmitter DPT-10
55
6 Adjustment with the display and adjustment module
Service
Basic adjustment
Display
4
Diagnostics
▶ Service
Info
Current output
Characteristic: 4-20 mA ▼
4.1
Simulation
4.2
Start simulation ▼
Fail.mode: < 3.6 mA ▼
Min. current: 3.8 mA ▼
Reset
4.3
Language
Select reset ▼
4.4
Deutsch ▼
max. current: 20.5 mA ▼
Copy sensor data
4.7
Copy sensor data?
PIN
4.8
Enable?
Info
Basic adjustment
Display
5
Diagnostics
Service
▶ Info
Instrument type
Serial number
12345678
5.1
Date of manufacture
Software version
5.2
Last change using PC
5.3
Sensor characteristics
5.4
Display now?
6.12 Saving the parameterisation data
We recommended writing down the adjustment data, e.g. in this operating instructions manual, and archiving them afterwards. They are
thus available for multiple use or service purposes.
If DPT-10 is equipped with a display and adjustment module, the
most important data can be read out of the sensor into the display
and adjustment module. The procedure is described in the operating
instructions manual "Display and adjustment module" in the menu
item "Copy sensor data". The data remain there permanently even if
the sensor power supply fails.
If it is necessary to exchange the sensor, the display and adjustment
module is inserted into the replacement instrument and the data are
written into the sensor under the menu item "Copy sensor data".
56
WIKA Operating Instructions - Differential pressure transmitter DPT-10
7 Setup
7
7.1
Setup
General instructions
Before adjusting DPT-10, you have to clean the effective pressure
lines and the instrument must be filled with the medium.
DPT-10 with double chemical seal is immediately ready for operation.
The DPT-10 without chemical seal or with single chemical seal is
ready for operation after opening a blocking valve, in case one is
present.
7.2
Flow measurement
Gases
6
7
I
+
–
3
II
2
4
+
Fig. 44: Prefered measurement setup for gases, connection via 3-fold valve
block, flanging on both sides
I DPT-10
II 3-fold valve block
2, 4 Inlet valves
3 Breather valve
6, 7 Vent valves on DPT-10
WIKA Operating Instructions - Differential pressure transmitter DPT-10
57
7 Setup
Liquids
A
+
B
6
7
+
–
I
III
II
1
2
3
III
4
5
Fig. 45: Preferred measurement setup for liquids
I DPT-10
II 3-fold valve block
III Precipitator
1, 5 Drain valves
2, 4 Inlet valves
3 Breather valve
6, 7 Vent valves on DPT-10
A, B Blocking valves
Proceed as follows:
1. Close valve 3
2. Fill measuring system with medium.
For this purpose, open valves A, B (if available) as well as 2, 4:
Medium flows in
If necessary, clean the differential pressure lines: - with gases by
blowing out with compressed air - with liquids by rinsing.6)
For this purpose close valve 2 and 4, i.e. block the instrument.
Then open valve 1 and 5 so that the effective pressure lines blow
out/rinse.
Close valves 1 and 5 (if available) after cleaning
3. Remove air from instrument:
Open valves 2 and 4: Medium flows in
Close valve 4: Low pressure side is closed
Open valve 3: Equalisation high and low pressure side
Briefly open valve 6 and 7, then close again: Fill the measuring
instrument completely with the medium and remove air
4. Carry out a position correction if the following conditions apply. If
the conditions are not fulfilled, then carry out the position correction after step 6.
Conditions:
6)
58
Arrangement with 5 valves.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
7 Setup
The process cannot be sealed off.
The pressure extraction points (A and B) are at the same geodesic height.
5. Put measurement loop into operation:
Close valve 3: Separate high and low pressure side
Open valve 4: Connect low pressure side
Now:
Valves 1, 3, 5, 6 and 7 are closed7)
Valves 2 and 4 are open
Valves A and B open
6. Carry out position correction, if flow can be blocked. In this case,
step 5 is not required.
7.3
Level measurement
Closed vessel
B
+
A
6
7
+
–
I
II
III
III
3
2
4
1
5
Fig. 46: Preferred measurement setup for closed vessels
I DPT-10
II 3-fold valve block
III Precipitator
1, 5 Drain valves
2, 4 Inlet valves
6, 7 Vent valves on DPT-10
A, B Blocking valves
Proceed as follows:
1. Fill the vessel to just above the lower tap
2. Fill measuring system with medium
Close valve 3: Separate high/low pressure side
7)
Valves 1, 3, 5: Configuration with 5 valves.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
59
7 Setup
Open valve A and B: Open block valves
3. Vent high pressure side (probably empty low pressure side)
Open valve 2 and 4: Discharge medium on the high pressure side
Briefly open valve 6 and 7, then close again: Fill the high pressure
side completely with the medium and remove air.
4. Set measurement loop to operation
Now:
Valve 3, 6 and 7 are closed
Valves 2, 4, A and B are open
Closed vessel with steam
layer
IV
B
+
A
6
7
+
–
I
II
III
III
3
2
4
1
5
Fig. 47: Preferred measurement setup for closed vessels with steam overlay
I DPT-10
II 3-fold valve block
III Precipitator
IV Condensate vessel
1, 5 Drain valves
2, 4 Inlet valves
3 Breather valve
6, 7 Vent valves on DPT-10
A, B Blocking valves
Proceed as follows:
1. Fill the vessel to just above the lower tap
2. Fill measuring system with medium
Open valve A and B: Open block valves
Fill the low pressure effective pressure line on the height of the
condensation pot
3. Remove air from instrument:
Open valve 2 and 4: Discharge medium
Open valve 3: Equalisation high and low pressure side
60
WIKA Operating Instructions - Differential pressure transmitter DPT-10
7 Setup
Briefly open valve 6 and 7, then close again: Fill the measuring
instrument completely with the medium and remove air
4. Put measurement loop into operation:
Close valve 3: Separate high and low pressure side
Open valve 4: Connect low pressure side
Now:
Valve 3, 6 and 7 are closed
Valves 2, 4, A and B are open.
7.4
Density and interface measurement
For density and interface measurements, DPT-10 with double chemical seal is used.
DPT-10 in this version is immediately ready for operation.
Instructions
7.5
Differential pressure measurement
For differential pressure measurements, DPT-10 without chemical
seal or with double chemical seal is used.
DPT-10 with double chemical seal is immediately ready for operation.
Before adjusting DPT-10 without chemical seal, the effective pressure
lines must be cleaned and the instrument filled with medium.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
61
8 Maintenance and fault rectification
8
Maintenance
Maintenance and fault rectification
8.1
Maintenance
If the device is used properly, no special maintenance is required in
normal operation.
In some applications, product buildup on the separating diaphragms
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.
8.2
Rectify faults
Reaction when malfunction occurs
The operator of the system is responsible for taking suitable measures to rectify faults.
Causes of malfunction
DPT-10 offers maximum reliability. Nevertheless, faults can occur during operation. These may be caused by the following, e.g.:
•
•
•
•
Fault rectification
Check the 4 … 20 mA
signal
Sensor
Process
Voltage supply
Signal processing
The first measures to be taken are to check the output signals as well
as to evaluate the error messages via the display and adjustment
module. The procedure is described below. Further comprehensive
diagnostics can be carried out on a PC with the software PACTware
and the suitable DTM. In many cases, the causes can be determined
and the faults rectified this way.
Connect a multimeter in the suitable measuring range according to
the wiring plan.
Error code
Cause
Rectification
4 … 20 mA
signal not
stable
Level fluctuations
–– Set the integration time via the
display and adjustment module or
PACTware
4 … 20 mA
signal missing
Wrong connection to
voltage supply
–– Check connection according to
chapter "Connection steps" and
if necessary, correct according to
chapter "Wiring plan"
No power supply
–– Check cables for breaks; repair if
necessary
–– Check, adapt if necessary
Operating voltage
too low or load resistance too high
Current signal greater
than 22 mA
or less than
3.6 mA
62
Electronics module
–– Exchange the instrument or send it
or measuring cell dein for repair
fective
WIKA Operating Instructions - Differential pressure transmitter DPT-10
8 Maintenance and fault rectification
Error messages via the
display and adjustment
module
Reaction after fault rectification
In Ex applications, the regulations for the wiring of intrinsically safe
circuits must be observed.
Error code
Cause
Rectification
E013
no measured value
available8)
–– Exchange the instrument or send it
in for repair
E017
Adjustment span too
small
–– repeat with modified values
E036
no operable sensor
software
–– Carry out a software update or send
instrument for repair
E041
Hardware error
–– Exchange the instrument or send it
in for repair
Depending on the reason for the fault and the measures taken, the
steps described in chapter "Set up" may have to be carried out again.
8.3
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:
•
•
•
•
8)
Complete one form for each instrument
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
Fault message can also appear if the pressure is higher than the nominal
range.
WIKA Operating Instructions - Differential pressure transmitter DPT-10
63
9 Dismount
9
9.1
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 power supply"
and carry out the listed steps in reverse order.
9.2
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 2002/96/EG
This instrument is not subject to the WEEE directive 2002/96/EG and
the respective national laws. Pass the instrument directly on to a specialised recycling company and do not use the municipal collecting
points. These may be used only for privately used products according
to the WEEE directive.
Correct disposal avoids negative effects on humans and the environment and ensures recycling of useful raw materials.
Materials: see chapter "Technical data"
If you have no way to dispose of the old instrument properly, please
contact us concerning return and disposal.
64
WIKA Operating Instructions - Differential pressure transmitter DPT-10
10 Supplement
10 Supplement
10.1 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.
Output variable
Output signal
4 … 20 mA
Signal resolution
1.6 µA
Failure signal output current
mA value unchanged 20.5 mA, 22 mA, < 3.6 mA (adjustable)
Max. output current
22 mA
Load
see load diagram under Power supply
Dynamic behaviour output
Run-up time
≤ 20 s
Met NAMUR recommendation
NE 43
I
100 %
63 %
t1
t2
t
Fig. 48: Presentation of the dead time t1 and the time constant t2
The following specified total dead time applies to the 4 … 20 mA current output:
Version, nominal measuring range
Dead time t1
Time constant t2
Basic version 100 mbar
100 ms
180 ms
Basic version 500 mbar
100 ms
180 ms
Basic version, 3 bar
100 ms
180 ms
Basic version 10 bar and 30 bar
100 ms
WIKA Operating Instructions - Differential pressure transmitter DPT-10
450 ms
65
10 Supplement
Version, nominal measuring range
Basic version 16 bar and 40 bar
Dead time t1
Time constant t2
Dependent on the chemical seal
Dependent on the chemical seal
100 ms
Chemical seal version, all nominal measuring ranges
180 ms
Damping (63 % of the input variable)
0 … 999 s, adjustable
Input variable
Measured variable
Differential pressure, flow and level derived from it
Adjustment differential pressure
Adjustment range of the zero/span adjustment relating to the nominal measuring range:
ƲƲ Pressure value zero
-120 … +120 %
ƲƲ Pressure value span
Zero + (-220 … +220 %)9)
Adjustment level
Adjustment range of the min./max. adjustment relating to the nominal measuring range:
ƲƲ Percentage value
-10 … +110 %
ƲƲ Pressure value
-120 … +120 %10)
Adjustment flow
Adjustment range of the zero/span adjustment relating to the nominal measuring range:
ƲƲ Pressure value zero
-120 … +120 %
ƲƲ Pressure value span
-120 … +120 %11)
Recommended max. turn down
15 : 1 (no limitation)
Nominal measuring ranges, measurement limits and smallest spans to be calibrated
Nominal range
Lower measurement
limit
Upper measuring limit
Smallest adjustable
span
10 mbar (1 kPa)
-10 mbar (-1 kPa)
+10 mbar (+1 kPa)
0.25 mbar (25 Pa)
30 mbar (3 kPa)
-30 mbar (-3 kPa)
+30 mbar (+3 kPa)
0.3 mbar (30 Pa)
100 mbar (10 kPa)
-100 mbar (-10 kPa)
+100 mbar (+10 kPa)
1 mbar (100 Pa)
500 mbar (50 kPa)
-500 mbar (-50 kPa)
+500 mbar (+50 kPa)
5 mbar (500 Pa)
3 bar (300 kPa)
-3 bar (-300 kPa)
+3 bar (+300 kPa)
30 mbar (3 kPa)
16 bar (1600 kPa)
-16 bar (-1600 kPa)
+16 bar (+1600 kPa)
160 mbar (16 kPa)
40 bar (4000 kPa)
-40 bar (-4000 kPa)
+40 bar (+4000 kPa)
400 mbar (40 kPa)
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 psig)
ƲƲ Relative humidity
9)
10)
11)
45 … 75 %
Values less than -1 bar cannot be set.
Values less than -1 bar cannot be set.
Values less than -1 bar cannot be set.
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Determination of characteristics
Characteristic curve
Limit point adjustment according to IEC 61298-2
Linear
Calibration position of the measuring cell Vertical, i.e. upright process component
Influence of the installation position to the ≤ 4 mbar12)
zero point
A position-dependent zero-point shift can be corrected (see also chapter "Adjust parameter").
Position of the span in the measuring
range
Based on the zero point
Filling oil
Silicone oil
Diaphragm material
Material, lateral flanges
316L, Alloy C276 (2.4819), gold rhodium plated, Alloy 400 (2.4360)
316L
A position-dependent zero-point shift can be corrected (see also chapter "Adjust parameter").
Deviation determined according to the limit point method according to IEC 6077013)
Applies to digital interfaces (HART, Profibus PA, Foundation Fieldbus) as well as to analogue
current output 4 … 20 mA. Specifications refer to the set span. Turn down (TD) is the ratio nominal
measuring range/set span.
All versions
The following applies to square root extracted characteristics: The accuracy data of DPT-10 are
entered with factor 0.5 in the accuracy calculation of the flow.
Basic version
10 mbar, 30 mbar measuring cell
ƲƲ Turn down 1 : 1
ƲƲ Turn down > 1 : 1
100 mbar measuring cell
ƲƲ Turn down 1 : 1 to 4 : 1
ƲƲ Turn down > 4 : 1
Measuring cells ≥ 500 mbar
ƲƲ Turn down 1 : 1 to 15 : 1
ƲƲ Turn down > 15 : 1
Chemical seal versions
100 mbar measuring cell
ƲƲ Turn down 1 : 1 to 4 : 1
ƲƲ Turn down > 4 : 1
Measuring cells ≥ 500 mbar
ƲƲ Turn down 1 : 1 to 15 : 1
12)
13)
±0.09 % of the set span
±0.09 % of the set span x TD
±0.075 % of the set span
±(0.012 x TD + 0.027) % of the set span
±0.075 % of the set span
±(0.0015 x TD + 0.053) % of the set span
±0.075 % of the set span + influence of the chemical
seal
±(0.012 x TD + 0.027) % of the set span + influence of
the chemical seal
±0.075 % of the set span + influence of the chemical
seal
Max. value with horizontal process component. Specification applies to the basic version without chemical seal.
The value doubles with instruments with inert oil.
Incl. non-linearity, hysteresis and non-repeatability.
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ƲƲ Turn down > 15 : 1
±(0.0015 % x TD + 0.053 %) of the set span + influence
of the chemical seal
Influence of the medium or ambient temperature
Thermal change zero signal and output span
Applies to instruments in basic version with digital signal output (HART, Profibus PA, Foundation
Fieldbus) as well as to instruments with analogue current output 4 … 20 mA. Specifications refer
to the set span. Turn down (TD) = nominal measuring range/set span.
Temperature range
Measuring range
-10 … +60 °C (+14 … +140 °F)
10 mbar, 30 mbar
±(0.30 x TD + 0.06) %
100 mbar
±(0.18 x TD + 0.02) %
500 mbar, 3 bar
±(0.08 x TD + 0.05) %
16 bar
±(0.1 x TD + 0.1) %
40 bar
±(0.08 x TD + 0.05) %
10 mbar, 30 mbar
±(0.45 x TD + 0.1) %
100 mbar
±(0.3 x TD + 0.15) %
500 mbar, 3 bar
±(0.12 x TD + 0.1) %
16 bar
±(0.15 x TD + 0.2) %
40 bar
±(0.37 x TD + 0.1) %
-40 … +10 °C (-40 … +50 °F)
+60 … +85 °C (+140 … +185 °F)
Thermal change, current output
Applies also to instruments with analogue 4 … 20 mA current output and refers to the set span.
0,3 %
0,15 %
-40°C
-20°C
20°C
-0,15 %
40°C
60°C
80°C
-0,3 %
Fig. 49: Thermal change, current output
Influence of the system pressure on the zero point and span
316L, Alloy C276 (2.4819), Alloy 400 (2.4360) diaphragm
Measuring cell
10 mbar
30 mbar
100 mbar
500 mbar
Influence of the system pressure to the
zero point
±0.15 % of
URL/7 bar
±0.50 % of
URL/70 bar
±0.15 % of
URL/70 bar
±0.075 % of
URL/70 bar
Influence of the system pressure to the
span
±0.035 % of
URL/7 bar
±0.14 % of
URL/70 bar
±0.14 % of
URL/70 bar
±0.14 % of
URL/70 bar
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Measuring cell
3 bar
16 bar
40 bar
Influence of the system
pressure to the zero point
±0.075 % of URL/7 bar
±0.075 % of URL/70 bar
±0.075 % of URL/70 bar
Influence of the system
pressure to the span
±0.14 % of URL/7 bar
±0.14 % of URL/70 bar
±0.14 % of URL/70 bar
Alloy gold rhodium-coated diaphragm
Measuring cell
10 mbar
30 mbar
100 mbar
500 mbar
Influence of the system pressure to the
zero point
±0.15 % of
URL/7 bar
±0.77 % of
URL/70 bar
±0.42 % of
URL/70 bar
±0.075 % of
URL/70 bar
Influence of the system pressure to the
span
±0.035 % of
URL/7 bar
±0.14 % of
URL/70 bar
±0.42 % of
URL/70 bar
±0.14 % of
URL/70 bar
Measuring cell
3 bar
16 bar
40 bar
Influence of the system
pressure to the zero point
±0.075 % of URL/7 bar
±0.075 % of URL/70 bar
±0.075 % of URL/70 bar
Influence of the system
pressure to the span
±0.14 % of URL/7 bar
±0.14 % of URL/70 bar
±0.14 % of URL/70 bar
Tantalum diaphragm
Measuring cell
10 mbar
30 mbar
100 mbar
500 mbar
Influence of the system pressure to the
zero point
±0.32 % of
URL/7 bar
±1.60 % of
URL/70 bar
±0.42 % of
URL/70 bar
±0.14 % of
URL/70 bar
Influence of the system pressure to the
span
±0.07 % of
URL/7 bar
±0.32 % of
URL/70 bar
±0.42 % of
URL/70 bar
±0.14 % of
URL/70 bar
Measuring cell
3 bar
16 bar
40 bar
Influence of the system
pressure to the zero point
±0.14 % of URL/7 bar
±0.14 % of URL/70 bar
±0.14 % of URL/70 bar
Influence of the system
pressure to the span
±0.14 % of URL/7 bar
±0.14 % of URL/70 bar
±0.14 % of URL/70 bar
Total accuracy
Total Performance - Basic version
The specification "Total Performance" comprises the non-linearity incl. hysteresis and nonrepeatability, the thermal change of the zero point and the static pressure influence (pst = 70 bar).
All specifications refer to the adjusted span and apply to the temperature range +10 … +60 °C
(+50 … +140 °F).
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Diaphragm material
Turn Down up to
316L, Alloy
Alloy gold rhodium Tantalum
10 mbar
1:1
< ±0.35 %
< ±0.64 %
< ±0.61 %
30 mbar
1:1
< ±0.77 %
< ±0.99 %
< ±1.66 %
100 mbar
2:1
< ±0.27 %
< ±0.50 %
< ±0.30 %
≥500 mbar
2:1
< ±0.15 %
< ±0.15 %
< ±0.30 %
Measuring cell
Total Error - basic version
The specification "Total Error" comprises the longterm stability and the total performance.
Diaphragm material
316L, Alloy
Alloy gold rhodium
Tantalum
10 mbar
< ±0.36 %
< ±0.64 %
< ±0.62 %
30 mbar
< ±0.77 %
< ±0.99 %
< ±1.66 %
100 mbar
< ±0.33 %
< ±0.50 %
< ±0.48 %
≥500 mbar
< ±0.20 %
< ±0.20 %
< ±0.35 %
Measuring cell
Long-term stability (according to DIN 16086 and IEC 60770-1)
Applies to digital interfaces (HART, Profibus PA, Foundation Fieldbus) as well as to analogue current output 4 … 20 mA. Specifications refer to the measuring range final value.
Measuring range
1 year
5 years
10 mbar
< ±0.100 %
< ±0.150 %
10 years
-
100 mbar
< ±0.180 %
-
-
500 mbar
< ±0.025 %
< ±0.050 %
< ±0.075 %
3 bar
< ±0.038 %
< ±0.075 %
< ±0.150 %
16 bar
< ±0.025 %
< ±0.110 %
< ±0.210 %
Ambient conditions
Ambient, storage and transport temperature
ƲƲ Standard version
-40 … +80 °C (-40 … +176 °F)
ƲƲ Versions IP 66/IP 68 (1 bar), connection cable PE
-20 … +60 °C (-4 … +140 °F)
ƲƲ Version for oxygen applications14)
-40 … +60 °C (-40 … +140 °F)
ƲƲ Versions IP 66/IP 68 (1 bar) and IP 68, -20 … +80 °C (-4 … +176 °F)
connection cable PUR
Process conditions
The pressure and temperature specifications are used as overview. In general, the max. pressure
for the pressure transmitter depends on the weakest (with regard to pressure) link. In detail, the
respective specifications of the type label apply.
14)
Up to 60 °C (140 °F).
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Process temperature limits
Specifications apply to the basic version as well as to the minus side with version with single
chemical seal15)
ƲƲ With measuring cells PN 420
Lower temperature limit -10 °C (+14 °F).
ƲƲ With effective pressure lines longer
than 100 mm, process fitting steel
C 22.8 (1.0460)
-40 … +120 °C (-40 … +248 °F)
ƲƲ Chemical seal CSS plus side, CSB
both sides
-40 … +400 °C (-40 … +752 °F)
ƲƲ With effective pressure lines longer
than 100 mm
-40 … +120 °C (-40 … +248 °F)
Specifications apply to suitable chemical seals
Process temperature limits according to the seal material
Seal material
Version
Temperature limits
FKM
Standard
-20 … +85 °C (-4 … +185 °F)
Cleaned
-10 … +85 °C (+14 … +185 °F)
For oxygen application
-10 … +60 °C (-4 … +140 °F)
FFKM (Kalrez 6375)
-5 … +85 °C (23 … +185 °F)
EPDM
PTFE
-40 … +85 °C (-40 … +185 °F)
Standard
-40 … +85 °C (-40 … +185 °F)
For oxygen application
-20 … +60 °C (-4 … +140 °F)
NBR
Copper
-20 … +85 °C (-4 … +185 °F)
Standard
-40 … +85 °C (-40 … +185 °F)
For oxygen application
-20 … +60 °C (-4 … +140 °F)
PTFE, for oxygen application
-20 … +60 °C (-4 … +140 °F)
Process pressure limits according to measuring range16)
15)
16)
For the version for oxygen application, note chapter "Oxygen applications".
Reference temperature +20 °C (+68 °F)
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Nominal range
Nominal pressure
Overload onesided
Overload two-sided Min. system pressure
10 mbar (1 kPa)
160 bar (16000 kPa)
160 bar (16000 kPa)
240 bar (24000 kPa)
30 mbar (3 kPa)
160 bar (16000 kPa)
160 bar (16000 kPa)
240 bar (24000 kPa)
100 mbar (10 kPa)
160 bar (16000 kPa)
160 bar (16000 kPa)
240 bar (24000 kPa)
500 mbar (50 kPa)
160 bar (16000 kPa)
160 bar (16000 kPa)
240 bar (24000 kPa)
3 bar (300 kPa)
160 bar (16000 kPa)
160 bar (16000 kPa)
240 bar (24000 kPa)
16 bar (1600 kPa)
160 bar (16000 kPa)
160 bar (16000 kPa)
240 bar (24000 kPa)
40 bar (4000 kPa)
160 bar (16000 kPa)
160 bar (16000 kPa)
240 bar (24000 kPa)
420 bar (42000 kPa)
420 bar (42000 kPa)
420 bar (42000 kPa)
420 bar (42000 kPa)
420 bar (42000 kPa)
420 bar (42000 kPa)
420 bar (42000 kPa)
420 bar (42000 kPa)
630 bar (63000 kPa)
630 bar (63000 kPa)
0.1 mbarabs (10 Paabs)
630 bar (63000 kPa)
630 bar (63000 kPa)
Process pressure limits according to the seal material17)
Seal material
Nominal pressure
Overload onesided
Overload two-sided Min. system pressure
FFKM (Kalrez 6375)
100 bar (10000 kPa)
100 bar (10000 kPa)
150 bar (15000 kPa)
FFKM (Kalrez 6375)
160 bar (16000 kPa)
160 bar (16000 kPa)
240 bar (24000 kPa)
0.1 mbarabs (10 Paabs)
Vibration resistance (mechanical vibrations with 5 … 100 Hz), depending on the version as well as
the material and series of the electronics housing18)
ƲƲ Plastic single and double chamber
housing, Aluminium single chamber
housing
ƲƲ Aluminium double chamber housing, stainless steels single chamber
housing
4g
1g
ƲƲ Stainless steel double chamber hous- < 1 g
ing
Shock resistance
17)
18)
19)
Acceleration 100 g/6 ms19)
Reference temperature +20 °C (+68 °F)
Tested according to the guidelines of German Lloyd, GL directive 2.
Tested according to EN 60068-2-27.
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Electromechanical data - version IP 66/IP 67
Cable entry/plug20)
ƲƲ Single chamber housing
–– 1 x cable gland M20 x 1.5 (cable: ø 5 … 9 mm), 1 x
blind plug M20 x 1.5
or:
–– 1 x closing cap ½ NPT, 1 x blind plug ½ NPT
or:
–– 1␣x plug (depending on the version), 1␣x blind stopper
M20␣x␣1.5
or:
Spring-loaded terminals for wire crosssection
–– 2 x blind plug M20 x 1,5
< 2.5 mm² (AWG 14)
Display and adjustment module
Voltage supply and data transmission
through the sensor
Adjustment elements
4 keys
Indication
Protection rating
ƲƲ unassembled
LC display in dot matrix
IP 20
ƲƲ mounted into the sensor without cover IP 40
Ambient temperature - Display and
adjustment module
Material
ƲƲ Housing
ƲƲ Inspection window
Voltage supply
Operating voltage
-20 … +70 °C (-4 … +158 °F)
ABS
Polyester foil
ƲƲ Non-Ex instrument
12 … 36 V DC
ƲƲ Ex-d-ia instrument
15 … 35 V DC
ƲƲ Ex ia instrument
12 … 30 V DC
Operating voltage with illuminated display and adjustment module
ƲƲ Non-Ex instrument
20 … 36 V DC
ƲƲ Ex-d-ia instrument
No lighting possible (integrated ia barrier)
ƲƲ Ex ia instrument
Permissible residual ripple
ƲƲ < 100 Hz
ƲƲ 100 Hz … 10 kHz
Load resistor
ƲƲ Calculation
20)
20 … 30 V DC
Uss < 1 V
Uss < 10 mV
(UB - Umin)/0.022 A
Depending on the version M12 x 1, according to ISO 4400, Harting, 7/8" FF.
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ƲƲ Example - Non-Ex instrument with
UB= 24 V DC
Electrical protective measures
Protection rating
ƲƲ Housing, standard
Overvoltage category
(24 V - 12 V)/0.022 A = 545 Ω
IP 66/IP 67
For voltage supply via separator through networks of
overvoltage category III
Protection class
II
Approvals
Depending on the version, instruments with approvals can have different technical data. For these
instruments, please note the corresponding approval documents. They are included in the scope of
delivery.
10.2 Dimensions, versions process component
Plastic housing
~ 69 mm
(2.72")
ø 77 mm
(3.03")
~ 84 mm (3.31")
M20x1,5/
½ NPT
1
M16x1,5
112 mm (4.41")
112 mm (4.41")
ø 84 mm
(3.31")
M20x1,5/
½ NPT
2
Fig. 50: Housing versions with protection rating IP 66/IP 68 (0.2 bar) - with integrated display and adjustment
module the housing is 9 mm/0.35 in higher
1
2
74
Plastic single chamber
Plastic double chamber
WIKA Operating Instructions - Differential pressure transmitter DPT-10
10 Supplement
Aluminium housing
~ 87 mm (3.43")
~ 116 mm (4.57")
ø 84 mm
(3.31")
M16x1,5
120 mm (4.72")
116 mm (4.57")
ø 84 mm (3.31")
M20x1,5
M20x1,5/
½ NPT
M20x1,5/
½ NPT
1
2
Fig. 51: Housing versions with protection rating IP 66/IP 68 (0.2 bar) - with integrated display and adjustment
module the housing is 9 mm/0.35 in higher
1
2
Aluminium - single chamber
Aluminium - double chamber
Aluminium housing with protection rating IP 66/IP 68 (1 bar)
~ 105 mm
(4.13")
~ 150 mm
(5.91")
ø 84 mm
(3.31")
ø 84 mm
(3.31")
M20x1,5
120 mm
(4.72")
116 mm
(4.57")
M16x1,5
M20x1,5
1
M20x1,5/
½ NPT
2
Fig. 52: Housing version with protection rating IP 66/IP 68 (1 bar) - with integrated display and adjustment module
the housing is 9 mm/0.35 in higher
1
2
Aluminium - single chamber
Aluminium - double chamber
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Stainless steel housing
~ 69 mm
(2.72")
ø 77 mm
(3.03")
~ 59 mm
(2.32")
ø 80 mm
(3.15")
~ 87 mm (3.43")
ø 84 mm
(3.31")
117 mm (4.61")
112 mm (4.41")
M20x1,5/
½ NPT
M20x1,5/
½ NPT
1
2
M20x1,5/
½ NPT
3
ø 80 mm
(3.15")
104 mm
(4.1")
~ 59 mm
(2.3")
120 mm (4.72")
M16x1,5
M20x1,5/
½ NPT
4
Fig. 53: Housing versions with protection rating IP 66/IP 68 (0.2 bar) - with integrated display and adjustment
module the housing is 9 mm/0.35 in higher
1
2
3
76
Stainless steel single chamber (electropolished)
Stainless steel single chamber (precision casting)
Stainless steel double chamber housing (precision casting)
WIKA Operating Instructions - Differential pressure transmitter DPT-10
10 Supplement
128 mm
(5.04")
72 mm
(2.84")
41,3 mm
(1.63")
Oval flange, connection ¼-18 NPT or RC ¼
7/16-20 UNF
M 10 (M12)
+ –
1/4-18 NPT
RC1/4
54 mm
(2.13")
98 mm
(3.94")
100 mm
(3.94")
Fig. 54: DPT-10, connection ¼-18 NPT or RC ¼
Version
Connection
Material
Scope of delivery
B
¼-18 NPT IEC 61518 7/16-20 UNF
Fastening
Steel C 22.8
(1.0460)
incl. 2 vent valves
(316L)
D
¼-18 NPT IEC 61518 7/16-20 UNF
AISI 316L (1.4435 or incl. 2 vent valves
1.4404)
(316L)
F
¼-18 NPT IEC 61518 7/16-20 UNF
Alloy C276 (2.4819)
U
RC 1/4
1
¼-18 NPT IEC 61518 PN 160: M10,
PN 420: M12
Steel C 22.8
(1.0460)
2
¼-18 NPT IEC 61518 PN 160: M10,
PN 420: M12
AISI 316L (1.4435 or incl. 2 vent valves
1.4404)
(316L)
3
¼-18 NPT IEC 61518 PN 160: M10,
PN 420: M12
Alloy C276 (2.4819)
7/16-20 UNF
without valves/closing screws
AISI 316L (1.4435 or incl. 2 vent valves
1.4404)
(316L)
incl. 2 vent valves
(316L)
without valves/closing screws
The oval flanges of steel C 22.8 (1.0460) are zinc-coated. For applications with water we recommend oval flanges of 316L.
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10 Supplement
7/16-20 UNF
M 10 (M12)
+ –
1/4-18 NPT
RC1/4
1/4-18 NPT
RC1/4
54 mm
(2.13")
98 mm
(3.94")
100 mm
(3.94")
28 mm
(1.1")
128 mm
(5.04")
72 mm
(2.84")
41,3 mm
(1.63")
Oval flange, connection ¼-18 NPT or RC ¼, with lateral ventilation
Fig. 55: DPT-10, connection ¼-18 NPT or RC ¼, with lateral ventilation
Version
Connection
Material
Scope of delivery
C
¼-18 NPT IEC 61518 7/16-20 UNF
Fastening
Steel C 22.8
(1.0460)
incl. 4 closing screws
(AISI 316L) and 2
ventilation valves
E
¼-18 NPT IEC 61518 7/16-20 UNF
AISI 316L (1.4435 or incl. 4 closing screws
1.4404)
(AISI 316L) and 2
ventilation valves
H
¼-18 NPT IEC 61518 7/16-20 UNF
Alloy C276 (2.4819)
without valves/closing screws
V
RC 1/4
AISI 316L
incl. 4 closing screws
(AISI 316L) and 2
ventilation valves
7/16-20 UNF
The oval flanges of steel C 22.8 (1.0460) are zinc-coated. For applications with water we recommend oval flanges of 316L.
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WIKA Operating Instructions - Differential pressure transmitter DPT-10
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72 mm
(2.84")
1
+ –
54 mm
(2.13")
98 mm
(3.94")
7/16-20 UNF
M 10 (M12)
41,3 mm
(1.63")
128 mm
(5.04")
Oval flange, prepared for chemical seal connection
+ –
2
3
54 mm
(2.13")
98 mm
(3.94")
Fig. 56: left: Process fitting DPT-10 prepared for chemical seal assembly. right: Position of the copper ring seal
1
2
3
Chemical seal connection
Copper ring seal
Cup diaphragm
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10.3 Trademark
All the brands as well as trade and company names used are property of their lawful proprietor/
originator.
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WIKA Operating Instructions - Differential pressure transmitter DPT-10
INDEX
INDEX
A
Adjustment
––System 39
––Unit 40
––with density 43, 44
––with differential pressure 42
––with flow 44, 45
––with level 43
Adjustment system 39
Application area
––Density measurement 9
––Differential pressure measurement 9
––Flow measurement 8
––Interface measurement 10
––Level measurement 9
C
Cable screening and grounding 30
Connection cable 30
Copy sensor data 52
Current output 49
D
Density measurement 24
Differential pressure measurement
––In gases and vapours 26
––In liquids 27
––In vapour and condensate plants 26
DP flow element 12
E
Effective pressure lines 13
Electronics and terminal compartment 32
Electronics compartment, double chamber
housing 34
Error messages 63
F
Fault rectification 62
Flow measurement
––In gases 17
––In liquids 19
––In vapours 18
Functional principle 10
I
Interface measurement 25
Leak flow volume suppression 46
Level measurement
––In the closed vessel 21, 22, 23
––In the open vessel 20, 21
Linearisation curve
––with flow 46
––with level 45
M
Maintenance 62
Mounting arrangement 14
O
Oxygen applications 13
P
PIN 53
Position correction 41
Process conditions 12
R
Recycling 64
Reset 51
S
Setup 57, 58, 59, 60
T
Terminal compartment
––Double chamber housing 33
Totalizer 49
Tube mounting 14
Type label 7
V
Valve blocks
––3-fold valve block 15, 16
––3-fold valve block, flanging on both sides
16
––Introduction 14
Voltage supply 10
W
WEEE directive 64
Wiring plan 33
––Double chamber housing 34
L
Language 52
WIKA Operating Instructions - Differential pressure transmitter DPT-10
81
Notes
82
WIKA Operating Instructions - Differential pressure transmitter DPT-10
Notes
WIKA Operating Instructions - Differential pressure transmitter DPT-10
83
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.
84
Differential pressure transmitter DPT-10
37243-EN-170822
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
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