WIKA Pascal ET User Manual
Multifunction calibrator PASCAL ET and PASCAL ET/IS
GB
Multifunction calibrator PASCAL ET / PASCAL ET/IS
Operating instructions
GB
Operating instructions PASCAL ET/IS
Page
1 - 83
© 2012 WIKA Alexander Wiegand SE & Co. KG
All rights reserved.
WIKA® is a registered trademark in various countries.
Prior to starting any work, read the operating instructions!
Keep for later use!
2 WIKA Operating Instruction, Pascal ET and Pascal ET/IS
Contents
GB
1 General Information .......................................................................................................... 5
2 Safety ............................................................................................................................... 6
2.1 Intended use ..................................................................................................................... 7
2.2 Personnel qualification ...................................................................................................... 7
2.3 Additional safety instructions for instruments with ATEX approval only Pascal ET/IS....... 8
2.4 Special hazards ................................................................................................................ 9
2.5 Labelling / safety marks .................................................................................................. 10
3 Specifications ................................................................................................................. 11
4 Design and Function ....................................................................................................... 14
4.1 Description ...................................................................................................................... 14
4.2 Scope of delivery ............................................................................................................ 15
4.3 Power supply .................................................................................................................. 15
5 Transport, packaging and storage................................................................................... 16
5.1 Transport ........................................................................................................................ 16
5.2 Packaging ....................................................................................................................... 16
5.3 Storage ................................................................................................ ........................... 16
6 Commissioning, operation .............................................................................................. 17
6.1 Commissioning ............................................................................................................... 17
6.1.1 Instrument Overview ................................................................................................ 17
6.1.2 Functional modules .................................................................................................. 17
6.1.2.1 Input module for electrical/temperature signals .................................................... 18
6.1.2.2 Output module for electrical/temperature signals .................................................. 18
6.1.2.3 Pressure module .................................................................................................. 19
6.1.2.4 HART module....................................................................................................... 19
6.1.2.5 Environmental parameters module (optional) ....................................................... 22
6.2 Electrical ......................................................................................................................... 23
6.2.1 Electrical measurements .......................................................................................... 23
6.2.2 Thermocouple measurements ................................................................................. 24
6.2.3 Thermoresistance measurements ............................................................................ 25
6.2.4 Generation of electrical parameters ......................................................................... 26
6.2.5 Thermocouple simulation ......................................................................................... 26
6.2.6 Thermoresistance simulation ................................................................................... 27
6.3 User Interface ................................................................................................................. 28
6.3.1 Channel configuration .............................................................................................. 29
6.3.2 Other assignments ................................................................................................... 35
6.3.2.1 Pressure measurement ........................................................................................ 35
6.3.2.2 Thermocouple signal measurement ..................................................................... 39
6.3.2.3 Electrical parameter measurement ....................................................................... 44
6.3.2.4 Temperature Simulation ....................................................................................... 48
6.3.2.5 Electrical parameter generation ............................................................................ 48
6.3.2.6 Channel 4 – mathematic functions ................................ ....................................... 49
6.3.2.7 HART channel assignment ................................................................................... 53
6.3.2.8 HART trimmer calibration ..................................................................................... 56
6.3.2.9 HART scale adjust ............................................................................................... 58
6.4 Menu .............................................................................................................................. 59
6.4.1 Channel Menu ......................................................................................................... 60
6.4.2 Instrument Menu ...................................................................................................... 61
6.4.3 Report Menu ............................................................................................................ 63
6.4.4 Engineering unit Menu ............................................................................................. 63
6.4.5 Logger Menu ........................................................................................................... 63
6.4.6 Calibration Menu ...................................................................................................... 63
6.4.7 Graph Menu ............................................................................................................. 64
WIKA Operating Instruction, Model Pascal ET and Pascal ET/IS 3
Contents
GB
6.4.8 Ramp Menu ............................................................................................................. 65
6.4.9 Disk Menu ................................................................................................................ 67
6.5 Measurement Channel .................................................................................................... 67
6.5.1 Status ................................................................................................ ...................... 68
6.5.2 Res. MxMn .............................................................................................................. 68
6.5.3 Scaling ..................................................................................................................... 68
6.5.4 Filter ........................................................................................................................ 69
6.5.5 Hold On – Hold Off .................................................................................................. 69
6.5.6 Offset On – Offset Off .............................................................................................. 70
6.5.7 Inc. Dec – Dec. Dec ................................................................................................. 70
6.5.8 Chg. Out .................................................................................................................. 70
6.6 Report ............................................................................................................................. 72
6.7 Data Logger .................................................................................................................... 77
6.8 Communication ............................................................................................................... 79
6.9 Calibration Examples ...................................................................................................... 80
7 Maintenance, cleaning and servicing .............................................................................. 81
7.1 Maintenance ................................................................................................................... 81
7.2 Cleaning ......................................................................................................................... 81
7.3 Recalibration ................................................................................................................... 81
8 Dismounting, return and disposal .................................................................................... 82
8.1 Dismounting .................................................................................................................... 82
8.2 Return ............................................................................................................................. 82
8.3 Disposal .......................................................................................................................... 82
Appendix 1: ATEX Approval of Pascal ET/IS ................................................................................ 83
Declarations of conformity can be found online at www.wika.com.
4 WIKA Operating Instruction, Pascal ET and Pascal ET/IS
1 General Information
GB
1 General Information
■ The Multichannel Calibrator model Pascal ET or Pascal ET/IS described in the operating
instructions has been manufactured using state-of-the-art technology.
All components are subject to stringent quality and environmental criteria during production. Our
management systems are certified to ISO 9001 and ISO 14001.
■ These operating instructions contain important information on handling the Multichannel
Calibrator model Pascal ET or Pascal ET/IS. Working safely requires that all safety instructions
and work instructions are observed.
■ Observe the relevant local accident prevention regulations and general safety regulations for the
range of use of the Multichannel Calibrator model Pascal ET or Pascal ET/IS.
■ The operating instructions are part of the instrument and must be kept in the immediate vicinity
of the Multichannel Calibrator model Pascal ET or Pascal ET/IS and readily accessible to skilled
personnel at any time.
■ Skilled personnel must have carefully read and understood the operating instructions, prior to
beginning any work.
■ The manufacturer's liability is void in the case of any damage caused by using the product
contrary to its intended use, non-compliance with these operating instructions, assignment of
insufficiently qualified skilled personnel or unauthorised modifications to the Pascal ET or Pascal
ET/IS.
■ The general terms and conditions, contained in the sales documentation, shall apply.
■ Subject to technical modifications.
■ Factory calibrations/DKD/DAkks calibrations are carried out in accordance with international
standards.
■ Further information:
- Internet address: www.wika.de / www.wika.com
- Relevant Data Sheet: CT 18.02
- Application consultant: Tel.: (+49) 9372/132-9986
Fax: (+49) 9372/132-8767
E-Mail: testequip@wika.de
WIKA Operating Instruction, Model Pascal ET and Pascal ET/IS 5
1 General Information / 2 Safety
GB
Explanation of symbols
WARNING!
... indicates a potentially dangerous situation, which can result in serious
injury or death, if not avoided.
Information
... points out useful tips, recommendations and information for efficient and
trouble -free operation.
WARNING!
... indicates a potentially dangerous situation in a potentially explosive
atmosphere, resulting in serious injury or death, if not avoided.
2 Safety
WARNING!
Before installation, commissioning and operation, ensure that the appropriate
reference pressure sensor has been selected in terms of measuring range, design and
specific measuring conditions. Serious injuries and/or damage can occur should these
not be observed.
Further important safety instructions can be found in the individual chapters of these
operating instructions.
6 WIKA Operating Instruction, Pascal ET and Pascal ET/IS
2 Safety
GB
2.1 Intended use
The Multichannel Calibrator model Pascal ET or Pascal ET IS gauge can be used as a calibration
instrument and also for any application which requires accuracy pressure measurement.
The Multichannel Calibrator model Pascal ET or Pascal ET/IS has been designed and built solely
for the intended use described here, and may only be used accordingly.
The technical specifications contained in these operating instructions must be observed.
Improper handling or operation of the Multichannel Calibrator model Pascal ET or Pascal ET/IS
outside of its technical specifications requires the instrument to be shut down immediately and
inspected by an authorised WIKA service engineer.
Handle electronic precision measuring instruments with the required care (protect from strong
magnetic fields, static electricity and extreme temperatures, do not insert any objects into the
instrument or its openings). Plugs and sockets must be protected from contamination.
If the Multichannel Calibrator model Pascal ET or Pascal ET/IS is transported from a cold into a
warm environment, the formation of condensation may result in the instrument malfunctioning.
Before putting it back into operation, wait for the instrument temperature and the room temperature
to equalise.
The manufacturer shall not be liable for claims of any type based on operation contrary to the
intended use.
2.2 Personnel qualification
WARNING!
Risk of injury should qualification be insufficient!
Improper handling can result in considerable injury and damage to equipment.
■The activities described in these operating instructions may only be carried out by
skilled personnel who have the qualifications described below.
Skilled personnel
Skilled personnel are understood to be personnel who, based on their technical training,
knowledge of measurement and control technology and on their experience and knowledge of
country-specific regulations, current standards and directives, are capable of carrying out the work
described and independently recognising potential hazards.
Special operating conditions require further appropriate knowledge, e.g. of aggressive media.
WIKA Operating Instruction, Model Pascal ET and Pascal ET/IS 7
2 Safety
GB
II 2G
2.3 Additional safety instructions for instruments with ATEX approval
only Pascal ET/IS
WARNING!
Non-observance of these instructions and their contents may result in the loss of
explosion protection.
■ Battery operation:
Use only the rechargeable battery which is supplied by WIKA! Only charge the
battery outside of the hazardous area!
■ Operation of the serial interface in the hazardous area is prohibited.
Further hazardous area safety instructions!
Observe the operating information and the relevant country-specific regulations
concerning use in hazardous areas (e.g. EN IEC 60079-14).
The Pascal ET/IS intrinsically safe multichannel calibrator has been designed for use
in Ex Hazardous Areas. These are areas where potentially flammable or explosive
vapors may occur. These areas are referred to as hazardous (classified) locations in
the United States, as Hazardous Locations in Canada, as Potentially Explosive
Atmospheres in Europe and as Explosive Gas Atmospheres by most of the rest of
the world. The Pascal ET/IS intrinsically safe multichannel calibrator is designed as
intrinsically safe. This means that connecting the Pascal ET/IS intrinsically safe
multichannel calibrator to equipment that is used within intrinsically safe circuits will
not cause an ignition capable arc as long as the entity parameters are suitably
matched.
Information/Approval for hazardous locations:
WARNING!
■ Ex Hazardous Areas
An Ex-hazardous area as used in this manual refers to an area made hazardous
by the potential presence of flammable or explosive vapors. These areas are also
referred to as hazardous locations.
WARNING!
Only gauges powered by batteries are approved for use in hazardous locations.
Use only the rechargeable battery which is supplied by WIKA! Only charge the
battery outside of the hazardous area!
8 WIKA Operating Instruction, Pascal ET and Pascal ET/IS
2 Safety
GB
2.4 Special hazards
WARNING!
■ When measuring pressure, make sure that the process pressure line is shut off
and depressurised before it is connected to or disconnected from the pressure
module.
■Disconnect test leads before changing to another measurement or generation
function.
■ Observe the working conditions in accordance with chapter "3. Specifications".
■ Always operate the device within its overload limits.
■ To ensure problem-free operation, only operate the Multichannel Calibrator
model Pascal ET or Pascal ET/IS on battery power. Only use the mains
connection for charging the Hand-held pressure calibrators batteries.
■ Do not apply a voltage greater than the specified voltage to the instrument.
See chapter "3. Specifications".
■ Make sure that the test probes never contact a voltage source while the test
leads are connected to the current terminals.
■ Do not use the calibrator if it is damaged. Before using the multichannel
calibrator, check that there are no cracks or missing plastic parts on the case.
Pay particular attention to the insulation of the connectors.
■ Select the proper function and correct measuring range for the measurement.
■ Inspect the test leads for damaged insulation or exposed metal. Check the
continuity of the test leads. Damaged test leads should be replaced before using
the multichannel calibrator.
■ When using test probes keep fingers away from the test probe contacts. Keep
your fingers behind the test probes' finger guards.
■ First connect the common lead, and then the live lead. When disconnecting,
remove the live test lead first.
■ Do not use the multichannel calibrator if it is not working properly. The
instrument protection might be compromised. If in doubt, have the instrument
checked.
■ Do not operate the calibrator in areas with explosive gases, vapours or dust.
■ To avoid false readings, which could lead to possible electric shock or personal
injury, charge the rechargeable battery as soon as the battery indicator appears.
■ In order to avoid any possible damage to the multichannel calibrator or the test
equipment, use the correct leads, the correct function and the correct range for
the measuring application.
WIKA Operating Instruction, Model Pascal ET and Pascal ET/IS 9
2 Safety
GB
2.5 Labelling / safety marks
Explanation of symbols
Pascal ET and Pascal ET/IS
Before mounting and commissioning the Multichannel Calibrator model
Pascal ET or Pascal ET/IS, ensure you read the operating instructions!
CE, Communauté Européenne
Instruments bearing this mark comply with the relevant European directives.
This marking on the instruments indicates that they must not be disposed of in
domestic waste. The disposal is carried out by return to the manufacturer or by
the corresponding municipal authorities. See Directive 2002/96/EC.
Only Pascal ET/IS
ATEX European Explosion Protection Directive
(Atmosphère = AT, explosible = Ex)
Instruments bearing this mark comply with the requirements of the European
Directive 94/9/CE (ATEX) on explosion protection.
10 WIKA Operating Instruction, Pascal ET and Pascal ET/IS
3 Specifications
GB
1)
3 Specifications
WIKA Operating Instruction, Model Pascal ET and Pascal ET/IS 11
3 Specifications
GB
12 WIKA Operating Instruction, Pascal ET and Pascal ET/IS
3 Specifications
GB
For further specifications see WIKA data sheet CT 18.02 and the order documentation.
WIKA Operating Instruction, Model Pascal ET and Pascal ET/IS 13
4 Design and Function
GB
4 Design and Function
4.1 Description
Pascal ET or Pascal ET/IS is the Professional Advanced Scandura Calibrator of latest generation.
User friendly interface by a wide display with an industrial touch screen through which it is possible
to manage the instrument completely.
The operations are simplified thanks to the touch screen: the display changes in a dynamic way
according to the user selections, following test by step the operator during the calibration process,
decreasing the learning time and the human errors.
The touch screen can be operated by nude or gloved hands: dirty parts can be easily removed with
a cloth or a sponge. The touch screen can be locked during the measurement process to avoid
unintentional pressing of keys
The backlight illumination with LED guarantees a perfect view in case of low environmental
visibility.
Five keys are present below the touch screen : turn on/off of the instrument, contrast settings and
backlight.
Pascal ET or Pascal ET/IS consists of two parts: pressure part and electrical one.
The pressure part consists of:
■ 1 a pneumatic distribution block
■ 2 internal manual vacuum/pressure generator with fine adjustment
■ 3 up to four internal pressure sensors with overpressure valves.
The electrical part consists of up to four electrical module (2 input (IN) and 2 output (OUT) for the
measurement and generation of mA, mV, V, Hz, Ohm, Pulse, TC/RTD.
On the front panel of the instrument there are several connectors for:
■ recharging the battery
■ RS232 port
■ Connection to the external pressure transducers
■ Connection for the environment parameters
(temperature, humidity and atmospheric pressure)
Moreover there are the connections to provide 24 V d.c. power supply to the device under test.
The Pascal ET or Pascal ET/IS is powered with an internal battery pack. The battery allows 8
hours of standard operation before recharging.
Operating Pascal ET or Pascal ET/IS user is able to calibrate the whole industrial instrumentation
like for example:
■ Electronic and pneumatic pressure/vacuum transmitter
■ Electronic and pneumatic differential pressure transmitter
■ Electronic and pneumatic temperature transmitter (thermocouple and RTD)
■ Signal converter V, mV, mA, Hz, Pulse, ohm
■ Signal converter I/P and P/I
■ Signal isolator mA, mV
■ Mathematical Device (adder, subtractor, multiplier, divider)
■ Manometer, Pressure switch
■ Temperature monitor switch
■ Thermocouple and thermoresistance
■ Compensation device (up to 4 in-out signals)
■ Electronic and pneumatic receiver
■ Electronic and pneumatic controller
■ Electronic and pneumatic recorder
■ Miscellaneous instrument
14 WIKA Operating Instruction, Pascal ET and Pascal ET/IS
4 Design and Function
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Pascal ET or Pascal ET/IS includes different modules and can be ordered with different hardware
configurations.
The hardware configuration depends on the installation of different functional modules:
■ Two electrical/temperature IN modules (IN A & IN B)
■ Two electrical/temperature OUT modules (OUT A & OUT B)
■ Two pressure modules
(each one can support two internal and one external transducer. Total 6 sensors)
■ One environment parameters module
(atmospheric pressure, ambient temperature and relative humidity)
■ One power supply 24 V d.c.
■ One RS-232 communication port
■ One connection for recharging the battery
■ One hand pump for pressure or vacuum generation
■ One fine adjustment for a good regulation of pressure or vacuum
■ One set of valves for sensor protection against overpressure
Battery Life
In order to preserve battery life is recommended to keep the battery charger
connected for no more than 36 hours
Functional module
A functional module is a hardware component that allows the Pascal ET or
Pascal ET/IS to perform some operations like for example measurement and
generation of electrical signals and pressure.
4.2 Scope of delivery
■ Portable multifunction calibrator model Pascal ET or Pascal ET/IS
■ Operating instructions
■ AC adapter
■ Pascal report software
■ RS-232 interface cable
■ RS-232 to USB adapter
■ Electrical kit order no. 241076
■ Pneumatic pressure kit order no. 241028 and 241029
(Depending on pressure range)
■ 3.1 calibration certificate per DIN EN 10204
Cross-check scope of delivery with delivery note.
4.3 Power supply
Charging
To avoid false measurements, charge the rechargeable batteries as soon as the battery indicator
appears. If the batteries run too low the Pascal ET or Pascal ET/IS will automatically shut down.
Use only the original AC/DC converter which is supplied by WIKA
WIKA Operating Instruction, Model Pascal ET and Pascal ET/IS 15
5 Transport, packaging and storage
GB
5 Transport, packaging and storage
5.1 Transport
Check the Multichannel Calibrator model Pascal ET or Pascal ET/IS for any damage that may
have been caused by transport. Obvious damage must be reported immediately.
5.2 Packaging
Do not remove packaging until just before mounting.
Keep the packaging as it will provide optimum protection during transport (e.g. sending for
calibration).
5.3 Storage
Permissible conditions at the place of storage:
■ Storage temperature: -30 ... +80 °C
■ Relative Humidity: 10 ... 90 % r. H. (non-condensing)
Avoid exposure to the following factors:
■ Direct sunlight or proximity to hot objects
■ Mechanical vibration, mechanical shock (putting it down hard)
■ Soot, vapour, dust and corrosive gases
■ Potentially explosive environments, flammable atmospheres
Store the instrument in its original packaging in a location that fulfills the conditions listed above. If
the original packaging is not available, pack and store the instrument as described below:
1. Wrap the instrument in an antistatic plastic film.
2. Place the instrument, along with shock-absorbent material, in the packaging.
3. If stored for a prolonged period of time (more than 30 days), place a bag, containing a
desiccant, inside the packaging.
16 WIKA Operating Instruction, Pascal ET and Pascal ET/IS
6 Commissioning, operation
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3
4
5
6
7
8
10
1 2 9
11
6 Commissioning, operation
6.1 Commissioning
6.1.1 Instrument Overview
1 Connector RS-232
2 Connector for battery charger
3 Power ON
4 Power OFF
5 Back light OFF (Lamp)
6 Connectors for external P transducer
7 Contrast +/-
8 Environmental Parameter Connector
9 Loop power supply – 24 V d.c.
10 IN electrical/temperature modules
11 OUT electrical/temperature modules
6.1.2 Functional modules
The functional modules can be classified according to their assignments:
■ Electrical and temperature signals measurement
■ Pressure measurement, (2 different modules, up to 4 internal pressure sensors and 2
connectors for external pressure sensor)
■ Electrical and temperature signals generation/simulation
■ Pressure generation and regulation
■ Environmental parameters measurement
Many different configurations are available according to the specific requirements of the user.
WIKA Operating Instruction, Model Pascal ET and Pascal ET/IS 17
6 Commissioning, operation
GB
6.1.2.1 Input module for electrical/temperature signals
The input module for electrical/temperature parameters measurement is one of those modules
inserted from the instrument’s front panel; two slides drive the module into its position. It is possible
to have up to two input modules in the same instrument: IN A and IN B. This terminology is used
also by the software to carry out the connection between physical input IN and software channel.
For example: if you connect a thermoresistance Pt100 to module IN A, the temperature measured
by this thermoresistance can be displayed in any of the four software channels available. The
following figure shows the pins connection in electrical/temperature IN module.
Figure 1 – Input panel module
6.1.2.2 Output module for electrical/temperature signals
The output module for electrical/temperature parameters generation or simulation is one of those
inserted from the instrument’s front panel; two slides drive the module into its position. It is possible
to have up to two output modules in the same instrument: OUT A and OUT B. This terminology is
used also by the software to carry out the connection between physical output OUT and software
channel. For example: if you connect a signal-receiver to module output OUT A, the current 4…20
mA generated can be displayed in any of the four software channels available.
The following figure shows the output module for electrical/temperature parameters.
Figure 2 – Output panel module
The 2 INPUT cards and 2 OUTPUT cards are plug and play modules and can be installed by the
user himself.
18 WIKA Operating Instruction, Pascal ET and Pascal ET/IS
6 Commissioning, operation
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Range
Precision (% FS)
Accuracy (% FS)
Typical Resolution
Gauge
-60…+60 mbar
0,1
0,15
0,01 mbar
-500…+500 mbar
0,015
0,025
0,01 mbar
-900…+1500 bar
0,015
0,025
0;01 mbar
0…7 bar
0,015
0,025
0,1 mbar
0…21 bar
0,015
0,025
0;1 mbar
0…50 bar
0,015
0,025
1 mbar
0…100 bar
0,015
0,025
1 mbar
0…200 bar
0,015
0,025
10 mbar
0…400 bar
0,015
0,025
100 mbar
0…700 bar
0,025
0,05
100 mbar
0…1000 bar
0,025
0,05
100 mbar
Absolute
0…1500 mbar abs.
0,015
0,025
0,01 mbar
0…2500 mbar abs
0,015
0,025
0,01 mbar
0…5 bar abs.
0,015
0,025
0,1 mbar
0…7 bar abs.
0,015
0,025
0,1 mbar
0…21 bar abs.
0,015
0,025
0,1 mbar
0…81 bar abs.
0,015
0,025
1 mbar
0…100 bar abs.
0,015
0,025
1 mbar
6.1.2.3 Pressure module
It is possible to install two pressure modules, each one can support one external transducer.
Accordingly 2 external sensors can be connected at the same time.
Transducers selection with range and their resolutions are in the following table.
External transducers *
* Other ranges available on request
6.1.2.4 HART module
The HART module allows communication with HART instruments (usually transmitters) permitting
to acquire digital measurements, instrument data and modifying settings. It can be inserted in the
front panel in place of OUT A or OUT B module.
It is a fully galvanically isolated board (like IN and OUT modules) from internal electronics of the
Pascal.
The module allow the 24V to supply directly the output loop for the transmitter.
Further, it can supply a 250Ω load resistance electronically switchable necessary to HART
communication, permitting to avoid the use of an external one.
The following figure shows the pin connections in HART module:
Figure 3 – HART module
WIKA Operating Instruction, Model Pascal ET and Pascal ET/IS 19
6 Commissioning, operation
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Transmitter
HART slave
Transmitter
HART slave
250 Ω
6.1.2.4.1 HART wiring
Depending by several factors and combination that the user can found in a plant, there are many
wiring possibility depending by:
Using module internal or external Power Supply.
Using internal or external load resistance.
Simultaneous analog connection of AO TRX to one Input module for mA reading
Please consider, if the user enable the internal load resistance, this will be connected between the
+HART and COM terminals.
Here same examples:
Figure 4 - Case 1: 24V from module, 250Ω from module
Figure 5 - Case 2: 24V from module, 250Ω external
20 WIKA Operating Instruction, Pascal ET and Pascal ET/IS
6 Commissioning, operation
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Transmitter
HART slave
24V ext.
Transmitter
HART slave
24V ext.
250 Ω
Figure 6 - Case 3: 24V external, 250Ω from module
WIKA Operating Instruction, Model Pascal ET and Pascal ET/IS 21
Figure 7 - Case 4: 24V external, 250Ω external
6 Commissioning, operation
GB
Parameter
Range
Accuracy
Uncertainty
Max Resolution
Temperature
(-10 ÷ 50) °C
1,5 °C
1,8 °C
0,1 °C
Barometric Pressure
(650 ÷ 1150) mbar
4 % fs
5 % fs
1 mbar
Relative Humidity
10 % ÷ 90 %
4 %
5 %
1 %
Transmitter
HART slave
Figure 8 - Case 5: 24V from module, 250Ω from module, mA reading by IN module
6.1.2.5 Environmental parameters module (optional)
This module allows to measure: temperature, relative humidity and atmospheric pressure. These
parameters represent the most important factors that affect the calibration results. This module is
connected to Pascal ET or Pascal ET/IS with a multiple pin connector present on the right side
panel. This module is plug & play and the relevant information about the environmental parameters
are displayed on the status bar at the top of the screen.
This information is automatically reported on the calibration report.
22 WIKA Operating Instruction, Pascal ET and Pascal ET/IS
6 Commissioning, operation
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Range
Max resolution
Voltage
(-100…100) mV
0,0001 mV
(-2…2) V
0,000001 V
(-80…80) V
0,00001 V
Current
(-100…100) mA
0,0001 mA
Resistance
(0…400) Ω
0,001 Ω
(0…10000) Ω
0,01 Ω
Frequency
(0,4…50000) Hz
0,001 Hz
Pulse
0,4…20 Hz
-
Contact
Open - Closed
-
6.2 Electrical
The Pascal ET or Pascal ET/IS is a multifunction calibrator.
The electrical modules can be maximum four, two of them are input modules (IN A – IN B), and the
other two are output modules (OUT A – OUT B).
6.2.1 Electrical measurements
The instrument is able to measure voltage, current, resistance and frequency. To optimise the
resolution and get better measurement results, there are three ranges for voltage measurement,
two for resistance measurements, one range for current and three ranges for frequency.
Ranges of measurement and resolutions are specified in following table:
Table 1 - Range of input signals
WIKA Operating Instruction, Model Pascal ET and Pascal ET/IS 23
6 Commissioning, operation
GB
Type
Range/°C
Resolution/°C
Max
J
-210…1200
0,1
-190…1200
0,01
K
-270…1370
0,1
-160…1260
0,01
T
-270…400
0,1
-130…400
0,01
F
0…1400
0,1
0…1400
0,01
R
-50…1760
0,1
150…1760
0,01
S
-50…1760
0,1
170…1760
0,01
B
50…1820
0,1
920...1820
0,01
U
-200…400
0,1
-160…400
0,01
L
-200…760
0,1
-200…760
0,01
N
-270…1300
0,1
0…1300
0,01
E
-270…1000
0,1
-200…1000
0,01
C
0…2300
0,1
0…2000
0,01
M
-50…1410
0,1
-50…1410
0,01
6.2.2 Thermocouple measurements
The electrical module measures signals from the thermocouple and shows it in different
engineering units (°C, °F, K).
Thermocouple types, measuring range, linearity error and related resolutions are given in the
following table:
Table 2 – Thermocouple measurements table
It is possible to perform the measurement in two different ways: with internal reference (cold
junction), with external reference cold junction by entering the reference value through the
keyboard. When internal reference cold junction is selected, the ambient temperature is measured
through the thermocouple pins using a special thermo resistance. This temperature value is used
for compensation. The Standard connector Mignon for thermocouple is shown in Figure 1. The
thermoresistance for compensation of the reference cold junction is integrated in the same
connector.
24 WIKA Operating Instruction, Pascal ET and Pascal ET/IS
6 Commissioning, operation
GB
Type
Range/°C
Resolution/°C
Max
Pt100 (385)
-200…850
0,1
-200…850
0,01
Pt100 (3916)
-200…850
0,1
-200…850
0,01
Pt100 (3926)
-200…850
0,1
-200…850
0,01
Pt100 (3902)
-200…650
0,1
-200…650
0,01
Pt100 (3923)
-200…600
0,1
-200…600
0,01
Pt100 JIS (3916)
-200…600
0,1
-200…600
0,01
Pt200 (385)
-200…850
0,1
-200…850
0,01
Pt500 (385)
-200…850
0,1
-200…530
0,01
Pt1000 (385)
-200…850
0,1
-200…850
0,01
Pt1000 (3916)
-200…850
0,1
-200…850
0,01
Ni100 (617)
-60…180
0,1
-60…180
0,01
Ni120 (672)
0…150
0,1
0…150
0,01
Cu10 (42)
-70…150
0,1
-70…150
0,01
Cu100
-180…150
0,1
-180…150
0,01
6.2.3 Thermoresistance measurements
The electrical module measures signals from thermoresistance and shows it in different
engineering units (°C, °F, K).
Thermoresistance types, measuring range and related resolutions are given in the following table:
Table 3 - Thermoresistance measurements table
It is possible to connect the thermoresistance according to the type of measurement: 2 wires, 3
wires and 4 wires. The two wires measurement is performed without any compensation of the
connecting cables resistances; in this case the connection is among the two central (COM - Ω)
pins. In the case of three wires connection the pin identified with the writing 3W must also be used.
While for the four wires measurement, the most accurate of the above, is performed by using all
four pins.
WIKA Operating Instruction, Model Pascal ET and Pascal ET/IS 25
6 Commissioning, operation
GB
Range
Max resolution
Voltage
(0…100) mV
0,0001 mV
(0…2) V
0,000001 V
(0…20) V
0,00001 V
Current
(0…20) mA
0,0001 mA
Resistance
(0…400) Ω
0,001 Ω
(0…10000) Ω
0,01 Ω
Frequency
(0,5…20000) Hz
0,001 Hz
Pulse
(0,5…200) Hz / 9999999 impulse
Type
Range/°C
Resolution/°C
Max
J
-210…1200
0,1
-190…1200
0,01
K
-270…1370
0,1
-160…1260
0,01
T
-270…400
0,1
-130…400
0,01
F
0…1400
0,1
0…1400
0,01
R
-50…1760
0,1
150…1760
0,01
S
-50…1760
0,1
170…1760
0,01
B
50…1820
0,1
920…1820
0,01
U
-200…400
0,1
-160…400
0,01
L
-200…760
0,1
-200…760
0,01
N
-270…1300
0,1
0…1300
0,01
E
-270…1000
0,1
-200…1000
0,01
C
0…2300
0,1
0…2000
0,01
M
-50…1410
0,1
-50…1410
0,01
6.2.4 Generation of electrical parameters
The output module (OUT) allows to generate voltage, current, resistance and frequency.
For the voltage there are three different ranges with different resolutions. Resistance has two
ranges while current and frequency have only one range. Ranges and resolutions are given in the
following table:
Table 4 – Range of output signals
6.2.5 Thermocouple simulation
Through the output module it is possible to simulate thermocouples. This function can be used to
test and calibrate: thermocouple transmitters, analog or digital indicator. A thermoresistance Pt100,
inserted in isothermal contact with the connectors, measures the ambient temperature for the cold
junction compensation. It is possible to disable the automatic cold junction compensation and set
out the reference temperature by the keyboard.
The instrument can simulate thermocouple types indicated in the following table:
26 WIKA Operating Instruction, Pascal ET and Pascal ET/IS
Table 5 – Thermocouple simulation table
6 Commissioning, operation
GB
Type
Range/°C
Resolution/°C
Max
Pt100 (385)
-200…850
0,1 -200…850
0,01
Pt100 (3916)
-200…850
0,1
-200…850
0,01
Pt100 (3926)
-200…850
0,1
-200…850
0,01
Pt100 (3902)
-200…650
0,1 -200…650
0,01
Pt100 (3923)
-200…600
0,1 -200…600
0,01
Pt100 JIS (3916)
-200…600
0,1 -200…600
0,01
Pt200 (385)
-200…850
0,1 -200…850
0,01
Pt500 (385)
-200…850
0,1
-200…530
0,01
Pt1000 (385)
-200…850
0,1
-200…850
0,01
Pt1000 (3916)
-200…850
0,1 -200…850
0,01
Ni100 (617)
-60…180
0,1 -60…180
0,01
Ni120 (672)
0…150
0,1 0…150
0,01
Cu10 (42)
-70…150
0,1
-70…150
0,01
Cu100
-180…150
0,1
-180…150
0,01
6.2.6 Thermoresistance simulation
Through the output module (OUT) it is possible to simulate thermoresistance. This function can be
used to check and calibrate: temperature transmitters – analogue or digital indicators.
The instrument can simulate thermoresistance types indicated in the following table:
Fast programming of the value to be simulated
In generation or simulation on any particular channel the simulated value can be
rapidly changed by pressing immediately to the right of the simulated value where
there is a sensitive square that pressed allows user to enter the value to simulate by a
numerical keyboard.
Table 6 – Thermoresistance simulation table
WIKA Operating Instruction, Model Pascal ET and Pascal ET/IS 27
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