WIKA CPT-2x series Operating Instructions Manual
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WIKA CPT-2x series Operating Instructions Manual

WIKA CPT-2x series Operating Instructions Manual

Process pressure transmitter slave for electronic differential pressure with sil qualification ceramic sensor
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Operating Instructions
Process pressure transmitter CPT-2x
Slave for electronic differential pressure
With SIL qualification
Ceramic sensor
Process pressure transmitter CPT-2x

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Summary of Contents for WIKA CPT-2x series

  • Page 1 Operating Instructions Process pressure transmitter CPT-2x Slave for electronic differential pressure With SIL qualification Ceramic sensor Process pressure transmitter CPT-2x...

  • Page 2: Table Of Contents

    Set up with the display and adjustment module ..............34 Parameter adjustment ....................34 Diagnosis, asset management and service ................ 47 Maintenance ........................47 Cleaning - hygienic connection with compression nut ............ 47 Rectify faults ........................48 WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 3 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: 2017-11-23 WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 4: About This Document

    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 bat- teries and accumulators. WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 5: For Your Safety

    Arbi- trary conversions or modifications are explicitly forbidden. For safety reasons, only the accessory specified by the manufacturer must be used. WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 6: Eu Conformity

    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 WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 7: Product Description

    Scope of delivery The scope of delivery encompasses: • Instrument CPT-2x - Slave sensor • Ready-made connection cable, unassembled cable gland • Documentation – Quick setup guide CPT-2x – Safety Manual (SIL) WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 8: Principle Of Operation

    The sensors are connected via a screened four-wire cable. The measured value from the slave sensor is read in and factored into the calculations. Power supply and parameter adjustment are carried out through the master sensor. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 9 Fig. 3: Configuration of the ceramic measuring cell Process diaphragm Glass joint Base element The measuring cell is available in two sizes: WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 10 The recessed installation is particularly suitable for applications with Recessed installation gases, vapours and clear liquids. The measuring cell seal is posi- tioned laterally as well as in addition in front. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 11 The completely front-flush mounting is particularly suitable for ap- mounting with single seal plications in the paper industry. The diaphragm is in the pulp flow, is hence cleaned and protected against buildup. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 12 The front-flush, hygienic installation of the measuring cell is particu- fitting larly suitable for food applications. The sealings are installed gap-free. The form seal of the measuring cell protects also the glass joint. WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 13: Supplementary Cleaning Procedures

    To keep the purity level, the instruments are immediately packed in plastic foil after the cleaning process. The purity level remains as long as the instrument is kept in the closed original packaging. WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 14: Packaging, Transport And Storage

    • Relative humidity 20 … 85 % Lifting and carrying 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 - Process pressure transmitter CPT-2x...

  • Page 15: Mounting

    Vibrations If there is strong vibration at the mounting location, the instrument version with external housing should be used. See chapter "External housing". WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 16: Ventilation And Pressure Compensation

    • Atmospheric pressure compensation (with relative pressure meas- uring ranges) → Turn the housing so that the filter element points downward after the instrument is installed. This provides better protection against buildup. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 17 Line of Defense following functions: • Ventilation of the electronics housing → Turn the housing so that the filter element points downward after the instrument is installed. This provides better protection against buildup. WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 18: Combination Master - Slave

    Pressure type is identical for both sensors, i.e. relative pressure/ relative pressure or absolute pressure/absolute pressure • Master sensor measures the higher pressure • Measurement setup as shown in the following chapters WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 19 Total pressure: 0.8 bar + 0.05 bar = 0.85 bar Instrument selection Nominal measuring range Master: 1 bar Nominal measuring range Slave: 1 bar Turn Down: 1 bar/0.050 bar = 20 : 1 WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 20: Level Measurement

    Mount the master sensor so that it is protected against pressure shocks from the stirrer • Mount the slave sensor above the max. level Fig. 15: Measurement setup, level measurement in pressurized vessel CPT-2x CPT-2x, slave sensor WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 21: Differential Pressure Measurement

    The mounting distance h of the two sensors should be at least 10 %, better 20 %, of the final value of the sensor measuring range. A bigger distance increases the accuracy of the interface measurement. WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 22: Density Measurement

    The master/slave combination is suitable for density measurement. Requirements for a functioning measurement are: • Vessel with changing level • Distance between the measurement points as large as possible • Level always above the upper measuring point WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 23: Density-Compensated Level Measurement

    Mount the master sensor below the min. level • Mount the slave sensor above the master sensor • Mount both sensors away from the filling stream and emptying and protected against pressure shocks from the stirrer WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 24 The density-compensated level measurement is only possible in open, i.e. unpressurized vessels. WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 25: External Housing

    1. Mark the holes according to the following drilling template 2. Fasten wall mounting plate with 4 screws 90 mm (3.54") 70 mm (2.76") 8 mm (0.12") (0.32") Fig. 21: Drilling template - wall mounting plate WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 26: Connecting To Power Supply

    In case of flexible cores without end sleeves, press the terminal from above with a small screwdriver, the terminal opening is then free. When the screwdriver is released, the terminal closes again. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 27 9. Unscrew the blind plug on the Master, screw in the supplied cable gland 10. Connection cable to Master, see steps 3 to 8 11. Screw the housing lid back on The electrical connection is finished. WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 28: Single Chamber Housing

    Fig. 24: CPT-2x in IP 68 version 25 bar with axial cable outlet, external housing Transmitter Connection cable External housing Connect screen here. Connect ground terminal on the outside of the housing to ground as prescribed. The two terminals are galvanically connected. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 29 Cable gland for voltage supply Cable gland for connection cable, transmitter Terminal compartment, housing socket 1 2 3 4 Fig. 26: Connection of the sensor in the housing base Yellow White Black Shielding Breather capillaries WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 30: Connection Example

    Terminal 6 Terminal 7 Terminal 7 Terminal 8 Terminal 8 Connect screen here. Connect ground terminal on the outside of the housing to ground as prescribed. The two terminals are galvanically connected. WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 31: Functional Safety (Sil)

    SIL rating and can be also found on our homepage via the instrument search. Application area The instrument can be used, for example, for process pressure and hydrostatic level measurement of liquids in safety-instrumented sys- WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 32: Safety Concept Of The Parameterization

    In delivery status, the PIN is 0000. Warning: Unsafe device If adjustment is enabled, the safety function must be considered status as unreliable. This applies until the parameterisation is terminated WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 33 Warning: Instrument reset In case of a reset to basic settings, all safety-relevant parameters will also be reset to default. Therefore all safety-relevant parameters must be checked or readjusted. WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 34: Set Up With The Display And Adjustment Module

    • Unlock adjustment • Change parameters • Lock adjustment and verify modified parameters This ensures that all modified parameters have been deliberately changed. Unlock adjustment The instrument is shipped in locked condition. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 35 Zero" and "Max. adjustment/Span" as well as the static pressure. If the level should be adjusted in a height unit, the density of the me- dium must also be entered later during the adjustment. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 36 After the position correction is carried out, the actual measured value is corrected to 0. The corrective value appears with an inverse sign as offset value in the display. The position correction can be repeated any number of times. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 37 For the other process variables such as e.g. process pressure, differ- ential pressure or flow, the adjustment is performed in like manner. Setup - Min. adjustment Proceed as follows: Level WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 38 1. Select the menu item "Setup" with [->] and confirm with [OK]. Now select with [->] the menu item "Min. adjustment" and confirm with [OK]. 2. Edit the mbar value with [OK] and set the cursor to the requested position with [->]. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 39 For an adjustment with pressure, simply enter the actual measured value indicated at the bottom of the display. Setup - span adjustment, Proceed as follows: differential pressure 1. Select with [->] the menu item Span adjustment and confirm with [OK]. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 40 Proceed as follows: Setup - Max. adjustment, density 1. Select the menu item "Setup" with [->] and confirm with [OK]. Now select with [->] the menu item "Max. adjustment" and con- firm with [OK]. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 41 Setup - Max. adjustment - Proceed as follows: Interface 1. Select the menu item "Setup" with [->] and confirm with [OK]. Now select with [->] the menu item "Max. adjustment" and con- firm with [OK]. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 42 For an adjustment with filling, simply enter the actual measured value indicated at the bottom of the display. Setup - Max. distance, Proceed as follows: level density-compen- 1. Select with [->] the menu item Max. adjustment and confirm with sated [OK]. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 43 Setup - AI FB1 - Channel In menu item "Channel" you determine the input signal for further processing in AI FB 1. As input signals, the output values of Transducer Block (TB) can be selected. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 44 SIL parameter 2: Slave on/off • Non-SIL parameter 1: Measured value presentation • Non-SIL parameter 2: Display value 1, unit of the application • Non-SIL parameter 3: Menu language • Non-SIL parameter 4: Lighting WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 45 In this menu item you can simulate measured values. This allows the 4 … 20 mA/HART signal path to be tested, e.g. through downstream indicating instru- ments or the input card of the control system. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 46 - Characteristics values, and the selection of mass or volume flow is carried out. DP flow element Furthermore the adjustment for the volume or mass flow rate at 0 % or 100 % is carried out. WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 47: Diagnosis, Asset Management And Service

    Fig. 30: CPT-2x, structure of the hygienic connection with compression nut Hexagon Compression nut Process fitting Process module Form seal for the measuring cell O-ring seal for the process fitting Diaphragm Procedure To do so, proceed as follows: WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 48: Rectify Faults

    Hexagon key wrench, size 2 Caution: The exchange may only be carried out in the complete absence of line voltage. In Ex applications, only a replacement part with appropriate Ex ap- proval may be used. WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 49: Instrument Repair

    Instrument repair You can find information for a return shipment under "Service" on our local website. If a repair is necessary, please proceed as follows: • Complete one form for each instrument WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 50 8 Diagnosis, asset management and service • If necessary, state a contamination • Clean the instrument and pack it damage-proof • Attach the completed form and possibly also a safety data sheet to the instrument WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 51: Dismount

    Pass the instrument directly on to a spe- cialised recycling company and do not use the municipal collecting points. These may be used only for privately used products according to the WEEE directive. WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 52: Supplement

    Ʋ Seal between housing and housing lid Silicone SI 850 R, NBR silicone-free Ʋ Inspection window in housing cover Polycarbonate, UL746-C listed (with Ex-d version: glass) Ʋ Ground terminal 316L External housing Ʋ Housing Plastic PBT (Polyester), 316L WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 53 +15 bar/+1500 kPa -0.2 bar/-20 kPa 0 … +0.4 bar/0 … +40 kPa +30 bar/+3000 kPa -0.8 bar/-80 kPa 0 … +1 bar/0 … +100 kPa +35 bar/+3500 kPa -1 bar/-100 kPa WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 54 0 … +5 psig +375 psig -11.60 psig 0 … +15 psig +525 psig -14.51 psig 0 … +30 psig +600 psig -14.51 psig 0 … +75 psig +975 psig -14.51 psig WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 55 -120 … 120 % Flow (min./max. adjustment) Ʋ Percentage value 0 or 100 % fix Ʋ Pressure value -120 … 120 % Differential pressure (zero/span adjustment) Ʋ Zero -95 … +95 % WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 56 +15 … +25 °C (+59 … +77 °F) Ʋ Relative humidity 45 … 75 % Ʋ Air pressure 860 … 1060 mbar/86 … 106 kPa (12.5 … 15.4 psig) Determination of characteristics Limit point adjustment according to IEC 61298-2 WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 57 The basic temperature error in % from the above graphic can increase due to the additional factors, depending on the measuring cell version (factor FMZ) and the Turn Down (factor FTD). The ad- ditional factors are listed in the following tables. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 58 -40 … +150 °C (-40 … +302 °F) ET 7067 -20 … +130 °C (-4 … +266 °F) V70SW -10 … +150 °C (14 … +302 °F) With process fitting PVDF, process temperature max. 100 °C (212 °F). WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 59 100 °C 150 °C -40 °C (212 °F) (302 °F) (-104 °F) -40 °C (-104 °F) Fig. 35: Temperature derating CPT-2x, version up to +150 °C (+302 °F) Process temperature Ambient temperature WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 60 Ʋ Stranded wire with end sleeve 0.2 … 1.5 mm² (AWG 24 … 16) Depending on the instrument version. 2 g with housing version stainless steel double chamber IP 66/IP 68 (0.2 bar), only with absolute pressure. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 61 Depending on signal output and version of the master B max sensor Potential connections and electrical separating measures in the instrument Electronics Not non-floating Ground terminal Galvanically connected with the metal process fitting Breather capillaries not with Ex-d version. WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 62: Calculation Of The Total Deviation

    This applies for a digital signal output through HART, Profibus PA or Foundation Fieldbus. Protection rating IP 66/IP 68 (0.2 bar) only in conjunction with absolute pressure. When used with fulfilled housing protection. WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 63: Practical Example

    Fig. 36: Determination of the basic temperature error for the above example: F = 0.15 % TBasis Measuring cell standard, depending on the accuracy class Measuring cell version 0.05 %, 0.1 % 0.2 % (0.1 bar 0.2 % Factor FMZ WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 64 = 0.71 % (result of step 1) perf = 0.41 % (calculation of above table) stab = 0.71 % + 0.41 % = 1.12 % total The total deviation of each sensor is hence 1.12 %. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 65 The example shows that the measurement error in practice can be considerably higher than the basic accuracy. Reasons are temperature influence and Turn down. The thermal change of the current output is in this example is negligible. WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 66: Dimensions

    Fig. 38: Housing versions in protection IP 66/IP 67 and IP 66/IP 68 (0.2 bar) Plastic single chamber (IP 66/IP 67) Aluminium - single chamber Stainless steel single chamber (electropolished) Stainless steel single chamber (precision casting) Stainless steel single chamber (electropolished) IP 69K WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 67 ~ 66 mm (2.60") 110 mm x 90 mm (4.33" x 3.54") Fig. 39: IP 68 version with external housing Lateral cable outlet Axial cable outlet Plastic housing Stainless steel housing, electropolished WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 68 G½ A inside G¼ (ISO 228-1) G½ A inside G¼ A PVDF (ISO 228-1) G½ manometer connection (EN 837) volume-reduced ½ NPT inside ¼ NPT M20 x 1.5 manometer connection (EN 837) WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 69 For the version with temperature range up to 150 °C/302 °F, the measure of length increases by 28 mm (1.1 in). For the version with "Second Line of Defense", the measure of length increases by 17 mm (0.67 in). WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 70 For the version with temperature range up to 150 °C/302 °F, the measure of length increases by 28 mm (1.1 in). For the version with "Second Line of Defense", the measure of length increases by 17 mm (0.67 in). WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 71 For the version with temperature range up to 150 °C/302 °F, the measure of length increases by 28 mm (1.1 in). For the version with "Second Line of Defense", the measure of length increases by 17 mm (0.67 in). WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 72 G1, ISO 228-1 suitable for PASVE PMC 1" front-flush PN 6 DN 48 with tension flange For the version with temperature range up to 150 °C/302 °F, the measure of length increases by 28 mm (1.1 in). WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 73 For the version with temperature range up to 150 °C/302 °F, the measure of length increases by 28 mm (1.1 in). For the version with "Second Line of Defense", the measure of length increases by 17 mm (0.67 in). WIKA Operating Instructions - Process pressure transmitter CPT-2x...

  • Page 74: Trademark

    10 Supplement 10.5 Trademark All the brands as well as trade and company names used are property of their lawful proprietor/ originator. WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 75 PIN 32 Position correction 36 Pressure compensation 18 – Ex d 17 – Second Line of Defense 17 – Standard 16 Safety Integrity Level (SIL) – Lock adjustment 44 – Operating sequence 34 WIKA Operating Instructions - Process pressure transmitter CPT-2x...
  • Page 76 All statements concerning scope of delivery, application, practi- cal use and operating conditions of the sensors and processing systems correspond to the information available at the time of printing. WIKA Alexander Wiegand SE & Co. KG Alexander-Wiegand-Straße 30 63911 Klingenberg Germany...

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