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6 Commissioning, operation 

 

82                                                       WIKA Operating Instruction, Pascal ET, ET-P, ET/IS, ET-P/IS 

GB 

6.9.4  Example 4 

– Calibration of Thermocouples 

The calibration of thermocouples is similar to that of RTDs, i.e. by comparison, except for the 
choice of the type of reference thermocouple to be used accordingly to the types of thermocouples 
to be calibrated. 
 
You must also select the cold junction compensation if the internal, external or assigning a 
compensation value. 
 
The figure below shows the connection of the calibrator: 
 

 

Figure 91 

– Thermocouple calibration example 

Reference TC 

DUT TC 

Thermostat (Liquid Bath 

– Dry Block) 

Comparison method 

Содержание CPH8000

Страница 1: ...Multichannel Calibrator PASCAL ET ET P ET IS ET P IS GB Documenting Multivariable Multichannel Calibrator PASCAL ET ET P ET IS ET P IS Operating instructions...

Страница 2: ...Operating instructions ET ET P ET IS ET P IS Page 5 84 Rev 10 October 2017 2017 WIKA Alexander Wiegand SE Co KG All rights reserved WIKA is a registered trademark in various countries Prior to startin...

Страница 3: ...measurements 25 6 2 2 Thermocouple measurements 26 6 2 3 Thermoresistance measurements 27 6 2 4 Generation of electrical parameters 28 6 2 5 Thermocouple simulation 28 6 2 6 Thermoresistance simulati...

Страница 4: ...mple 2 Calibration of PTZ gas volume converters 80 6 9 3 Example 3 Calibration of 4 wire RTD s 80 6 9 4 Example 4 Calibration of Thermocouples 82 7 Maintenance cleaning and servicing 83 7 1 Maintenanc...

Страница 5: ...he operating instructions are part of the instrument and must be kept in the immediate vicinity of the Multichannel Calibrator model Pascal ET ET P ET IS ET P IS and readily accessible to skilled pers...

Страница 6: ...on 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...

Страница 7: ...s must be protected from contamination If the Multichannel Calibrator model Pascal ET ET P ET IS ET P IS are transported from a cold into a warm environment the formation of condensation may result in...

Страница 8: ...eferred 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 o...

Страница 9: ...rator 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 me...

Страница 10: ...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 manuf...

Страница 11: ...3 Specifications WIKA Operating Instruction Model Pascal ET ET P ET IS ET P IS 11 GB 3 Specifications 1...

Страница 12: ...3 Specifications 12 WIKA Operating Instruction Pascal ET ET P ET IS ET P IS GB...

Страница 13: ...3 Specifications WIKA Operating Instruction Model Pascal ET ET P ET IS ET P IS 13 GB...

Страница 14: ...3 Specifications 14 WIKA Operating Instruction Pascal ET ET P ET IS ET P IS GB...

Страница 15: ...3 Specifications WIKA Operating Instruction Model Pascal ET ET P ET IS ET P IS 15 GB For further specifications see WIKA data sheet CT 18 02 and the order documentation...

Страница 16: ...nsists of one or two connectors for connecting the external pressure sensors pneumatic distribution block internal manual vacuum pressure generator with fine adjustment up to four internal pressure se...

Страница 17: ...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...

Страница 18: ...ge 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 d...

Страница 19: ...V d c 11 IN electrical temperature modules 12 OUT electrical temperature modules 6 1 2 Functional Modules The functional modules can be classified according to their assignments Electrical and tempera...

Страница 20: ...gure 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 par...

Страница 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 External transducers Range Precision FS Accuracy FS Typical Resolution Gauge 60 60 mbar 0 1 0 15 0 001 mb...

Страница 22: ...in HART module Figure 3 HART module 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 i...

Страница 23: ...tion WIKA Operating Instruction Model Pascal ET ET P ET IS ET P IS 23 GB Figure 5 Case 2 24V from module 250 external Figure 6 Case 3 24V external 250 from module Transmitter HART slave 250 Transmitte...

Страница 24: ...r present in Pascal ET ET P ET IS ET P IS front 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...

Страница 25: ...ults 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 followin...

Страница 26: ...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 Table 2 Thermocouple measurements table...

Страница 27: ...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 15...

Страница 28: ...it is possible to simulate thermocouples This function can be used to test and calibrate thermocouple transmitters analogue or digital indicator A thermoresistance Pt100 inserted in isothermal contac...

Страница 29: ...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 P...

Страница 30: ...ing on the short or long pressing of the button itself Figure 9 Typical display of Pascal ET ET P ET IS ET P IS with 4 windows The display shows up to four windows channels that can be switched from o...

Страница 31: ...ow display mode shows the basic information and always shows 4 buttons for the following functions 1 Channel settings 2 Instruments functions 3 General settings 4 Enable Disable P S 24 V DC Compared t...

Страница 32: ...shows how to configure the C channel on the first window and how to set up the Pascal ET ET P ET IS ET P IS for temperature measurement through a Pt100 thermoresistance connected to the input pins of...

Страница 33: ...etter button for few seconds indicated with Q in the picture below until the letter changes into C By pressing the letter button quickly activates the channel the button displays a grey background whe...

Страница 34: ...14 First window assigned to Channel C Press the key indicated with S to select the module for Rtd measuring The following screen appears depending on the installed modules Figure 15 Source selection...

Страница 35: ...ated with Q in the figure above The following screen appears Figure 17 Selecting the unit for module IN A By selecting the Rtd unit the screen changes as follows Figure 18 Module IN A with Rtd unit se...

Страница 36: ...now set for measuring an RtdUser by using the 4 wire 4W IN A input and displaying the temperature in C The button indicated with Q in the picture above now shows a little with triangle in the right do...

Страница 37: ...site resistances of the connecting cables All specifications for thermoresistance aim for four wires measurement RTD USER must be selected when the operator needs to measure a non standard RTD in agre...

Страница 38: ...onship between the configured channels as REF REFerence and DUT Device Under Test This data will be used in the Report function 6 3 2 Other assignments 6 3 2 1 Pressure measurement The following proce...

Страница 39: ...rameter selection The Pascal ET ET P ET IS ET P IS can be equipped with up to two pressure modules and each of them can handle up to three pressure sensors two internals and one external with standard...

Страница 40: ...measuring range and his resolution For default the sensor has its maximum range equal to the measuring range Span If the Span can be redefined or to be reduced the same can be changed by using a nume...

Страница 41: ...g the channel letter the background of the button changes in gray Then press the button indicated with Q to assign the desired functional module Figure 28 Channel assign selection The following screen...

Страница 42: ...odule and it select the last used unit for this module in this case the last used unit was mV Press the button indicated with Q to change the unit from mV to Tc and the following screen appears Figure...

Страница 43: ...emperature shown in C Selecting internal cold junction a Pt100 is directly connected to the TC input pins measures the environmental temperature whereas by selecting external cold junction the tempera...

Страница 44: ...tter the background of the button changes in gray Then press the button indicated with Q to assign the desired functional module Figure 34 Channel assign selection The following screen appears Figure...

Страница 45: ...w set on the IN A module and it select the last used unit for this module in this case the last used unit was mV Press the button indicated with Q to change the unit from mV to Tc and the following sc...

Страница 46: ...e output modules OUT A or OUT B if present Figure 40 Selecting generation module OUT A or OUT B 6 3 2 5 Electrical parameter generation The procedure for the assignment of the generation of an electri...

Страница 47: ...el C or D has an additional setting named CALC This function enables to display on channel n C or D a value result of the combination of the values displayed in channel A and B To access select the ch...

Страница 48: ...calculation Here you can find CHA CHB channel 4 or C displays the total value of the values displayed on channel A and B CHA CHB channel 4 displays the difference value of the values displayed on cha...

Страница 49: ...on WIKA Operating Instruction Model Pascal ET ET P ET IS ET P IS 49 GB For the Cell Load the channel 4C or D can calculate the result coming from a load cell connected as per the below scheme Figure 4...

Страница 50: ...ld not be set in error mode In this case below what will be displayed Figure 47 Cell Load calculation Pascal ET ET P ET IS ET P IS allows to manage the sensitivity of the load cell from 0 mV V up to 9...

Страница 51: ...plays then press CHANNEL Once menu is displayed press ASSIGN Procedure is shown below The particular channel is selected by pressing the channel letter the background of the button changes in gray The...

Страница 52: ...connection be sure to already make the proper connections to the HART instrument Press Perform connection and after few seconds if no error is shown the following main screen appears Figure 52 HART c...

Страница 53: ...uction Model Pascal ET ET P ET IS ET P IS 53 GB Figure 53 Setting the HART channel Push the button HART FUNC and the following screen appears Figure 54 HART function screen Push the button DATA to dis...

Страница 54: ...HART transmitter the Pascal will return to the previous display IMPORTANT NOTE HART requires that all the characters must be in upper case in order to be properly stored 6 3 2 8 HART trimmer calibrati...

Страница 55: ...ollowing screen Select for example the CAL TRIM S button The HART instrument is put in fixed mode generation 4 or 20 mA and the REF channel is measuring the true analog mA generation To re align to th...

Страница 56: ...page as seen before If the user wants to adjust the scale a channel of the same input type of the transmitter has to be configured as REF channel If no REF channel is configured first an error will be...

Страница 57: ...ey pressed for some seconds this key to enter the status page Switching button it enable disable the 24 V DC current supply for external instrumentation 6 4 1 Channel setting A dedicated screen allows...

Страница 58: ...t the number of decimal digits to display LOW HIGH RANGE to set the reference values of the low and high ranges when channel mode REF and DUT are uses By entering the settings for an output channel th...

Страница 59: ...parameters Figure 59 Setting ramp parameters The screen above shows a ramp with low range of 0 V the value reach the high range of 10 V in 11 steps and after 20 seconds and the ramp runs for 2 cycles...

Страница 60: ...Menu is available in chapter 6 6 6 4 2 Functions setting This screen is used to setting the calibrator function The screen is as follows Figure 61 Functions setting Here the user can set different fun...

Страница 61: ...ferent selections FORMAT it deletes the memory completely and it is reset to the company default This option will delete ALL the above mentioned data but a confirmation message will appear before exec...

Страница 62: ...n is active only from the main screen if the calibration is not currently performing a report or an HART adjustment The following screen appears Figure 63 Setting the F key The available options are F...

Страница 63: ...channel the following dedicated screen appears Figure 66 Channel setting screen 6 5 1 Offset On Offset Off The Offset On Off button is used to zeroing or restoring the measure display of the actual a...

Страница 64: ...Unit Scl customized engineering unit of the measuring signal Decimals num number of decimal digits requested Transfer functi linear square root square Figure 68 Scaling parameters setting After settin...

Страница 65: ...splayed for the selected channel Press HOLD ON to hold the values HOLD OFF will appear Press it to unlock the channel HOLD ON will appear again HOLD on the display means that the values are hold See b...

Страница 66: ...6 6 Report To create a report one channel has to be set as REF Reference and another one as DUT Device Under Test reference signal and direct measurement or manual input by keyboard are required For t...

Страница 67: ...ST View Reports SETUP Reports setup DELETE ALL Deletes all the Reports On the PRESET column the available options are LIST View preset list SETUP Preset set up DELETE ALL Delete all the presets Press...

Страница 68: ...calibration of a pressure transmitter 0 1 bar range is available here below Figure 74 Report setup page 1 Figure 75 Report setup page 2 Once completed Press STORE per memorize the data The following s...

Страница 69: ...libration cycle is defined the generation of an electrical signal is done automatically For the pressure instead the operator has to reach the required pressure values using the manual pump and the fi...

Страница 70: ...hout any adjustment when a date is available this means that calibration process is complete AS FOUND AS LEFT If the report has never been run VOID will be displayed next to the name Press the arrows...

Страница 71: ...the DUT has been carried out Up calibration points going up Down calibration points going down On the screen for the Functions Setting see paragraph 6 5 2 press DELETE ALL to delete all the reports i...

Страница 72: ...it is 241113 NOTE for some dry well calibrators a switching on safety condition could prevent the automatic setting of a set point In this case the operator must disable this feature Please read the u...

Страница 73: ...eters have to be configured at first in order to create reports for Thermocouples Thermoresistances DST model set the type of thermometer by selecting thermocouple or RTD Do not leave the field as not...

Страница 74: ...arting to detect the temperature stability value Stab Time and Stab Band the algorithm for detecting the stability value will consider the temperature stable by using the two set parameters When the i...

Страница 75: ...ture goes outside the set range The counting will start again and starting from the new time counting the instrument will check that the temperature value will not change over the set range The stabil...

Страница 76: ...erating Instruction Pascal ET ET P ET IS ET P IS GB This template differs from the standard one in some freely settable fields as indicated below This template will also shows the errors in the set en...

Страница 77: ...ogs With this function you can configure the data logger for all 4 channels simultaneously Selecting SETUP Data Logger Setup will be displayed as per the below Log Name Name of the Log compulsory Samp...

Страница 78: ...Display Log list Press the button with grey background next to the log name to see the data of each log You can DELETE the selected log by pressing and keeping pressed the button with grey background...

Страница 79: ...ter is generated by the hand pump and by the fine volumetric regulator both present in the calibrator and measured as REF by the calibrator itself The figure below shows how to connect the transmitter...

Страница 80: ...conditions The following figure shows the use of the calibrator Figure 89 PTZ Gas volume converter calibration example 6 9 3 Example 3 Calibration of 4 wire RTD s A 4 wire RTD can be calibrated by us...

Страница 81: ...oning operation WIKA Operating Instruction Model Pascal ET ET P ET IS ET P IS 81 GB Figure 90 4 wire thermoresistance calibration example Comparison method Reference RTD DUT RTD Thermostat Liquid Bath...

Страница 82: ...except for the choice of the type of reference thermocouple to be used accordingly to the types of thermocouples to be calibrated You must also select the cold junction compensation if the internal ex...

Страница 83: ...re supply and switch it off Clean the Multichannel Calibrator model Pascal ET ET P ET IS ET P IS with a moist cloth Electrical connections must not come into contact with moisture For information on r...

Страница 84: ...riginal packaging or a suitable transport package To avoid damage 1 Wrap the instrument in an antistatic plastic film 2 Place the instrument along with the shock absorbent material in the packaging Pl...

Страница 85: ...Mensor Corporation E Mail wikame emirates net ae Croatia 201 Barnes Drive Kazakhstan www wika ae Switzerland San Marcos TX 78666 TOO WIKA Kazakhstan WIKA Croatia d o o MANOMETER AG Tel 1 512 3964200 1...

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