K-Patents PR-33-S Instruction Manual
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K-Patents PR-33-S Instruction Manual

Semicon process refractometer
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INSTRUCTION MANUAL
IM-EN-PR33S Rev. 1.42

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Summary of Contents for K-Patents PR-33-S

  • Page 1 INSTRUCTION MANUAL IM-EN-PR33S Rev. 1.42...
  • Page 2 Warranty K-Patents is rigorous in ensuring that all products manufactured and supplied by K-Patents shall be free of defects in material and workmanship. K-Patents agrees to either replace or repair free of charge any product found to be defective, or parts thereof when returned to the nearest authorized K-Patents repair facility within two (2) years of the product’s delivery date.

  • Page 3: Table Of Contents

    Choosing sensor mounting location ......15 3.1.2 PR-33-S sensor installation ....... 16 3.1.3 Check list for pipe mounting .
  • Page 4 Configuration and calibration ........24 Configuring the refractometer .
  • Page 5 ......... 41 PR-33-S refractometer field calibration form ......43...

  • Page 7: Introduction

    1 Introduction 1 Introduction The inline refractometer sensor PR-33-S (figure 1.1) measures the refractive index n and the temperature of the process medium. The concentration of the process liquid is calculated from these values when the composition of the process medium is known.
  • Page 8 PR-33-S instruction manual Figure 1.2 Refractometer principle shadow edge (C) indicates the value of the critical angle. The refractive index n then be determined from this position. The refractive index n changes with the process solution concentration and temper- ature. For most solutions the refractive index increases when the concentration in- creases.
  • Page 9 1 Introduction a. Optical image b. CCD element c. CCD output Figure 1.4 Optical image detection © Copyright K-Patents 2019. All rights reserved.

  • Page 10: Ethernet Connection

    PR-33-S instruction manual 2 Ethernet connection The Ethernet connection enables data download from a PR-33 sensor to a computer. Any type of computer (PC, Mac, PDA, mainframe...) with a compatible network con- nection can be configured to view and download data from the sensor. Sensor configu- ration and monitoring can be carried out without special software by using a standard web browser.
  • Page 11 (see figure 2.4). Fiber Media Media converter converter switch PR-33 Figure 2.4 Using fiber link to connect sensor(s). © Copyright K-Patents 2019. All rights reserved.

  • Page 12: Connection Settings

    PR-33-S instruction manual 2.2 Connection settings 2.2.1 IP settings for sensor All sensors are shipped with the factory default IP address of 169.254.23.33. This address belongs to the Zeroconf addresses (as defined in IETF standard RFC 3927) so that it can easily be reached from a stand-alone computer (figure 2.1), usually without changing the network settings of the computer.

  • Page 13: Configuring A Network Of Sensors

    One possibility is to number the instruments so that they all have 192.168.33.x addresses so that every computer and instrument has a different number x between 1...254. The subnet mask (or netmask) is in this case 255.255.255.0 (see figure 2.6). © Copyright K-Patents 2019. All rights reserved.

  • Page 14: Testing The Ethernet Connection

    PR-33-S instruction manual IP = 192.168.33.1 IP = 192.168.33.2 IP = 192.168.33.3 IP = 192.168.33.100 netmask = 255.255.255.0 Figure 2.6 A network of PR-33 sensors. Note: There are no settings for subnet mask, default gateway or name servers in PR-33, as these settings are not required.

  • Page 15: Troubleshooting The Connection

    Note: The factory-default IP address of the sensor is 169.254.23.33. This address should always respond (see section 2.2.1). 2.3.1 Troubleshooting the connection In case you are unable to reach the instrument through the network, please check the following things: © Copyright K-Patents 2019. All rights reserved.

  • Page 16: Instrument Homepage

    Once there is a functional Ethernet connection between the instrument and the com- puter, the homepage can be opened by typing the instrument’s IP address to the ad- dress bar of a web browser. K-Patents recommends using Firefox 2.0 or newer, but most functionality is available with any modern web browser.
  • Page 17 5. Use the links in the link bar on the left side of the page to find more extensive information on the instrument. Important: In order for the web pages to function as designed, the JavaScript support has to be enabled in the browser. © Copyright K-Patents 2019. All rights reserved.

  • Page 18: Main Page

    PR-33-S instruction manual 2.4.1 Main page Once the instrument homepage is loaded, the most important information is visible on the main page (figure 2.10). This page shows the measurement values, serial number and the tag of the instrument. Figure 2.10 Main page (sensor not in process) Document/Revision No.

  • Page 19: Parameters

    Note: If you change the IP address of the instrument, you will have to enter the new address to the address bar of the browser, as the sensor will no longer exist in the old address. © Copyright K-Patents 2019. All rights reserved.

  • Page 20: Diagnostics

    PR-33-S instruction manual 2.4.3 Diagnostics On the diagnostics page (figure 2.12) you may see the diagnostic values produced by the sensor. There is also a link to the optical image. The diagnostic values are updated live, but the optical image is only loaded on request.

  • Page 21: Inline Refractometer Sensor

    The sensor cover should not be exposed to high temperature radiation. In most cases, draft and natural convection provide sufficient air cooling if the air gets to flow freely around the sensor head. © Copyright K-Patents 2019. All rights reserved.

  • Page 22: Pr-33-S Sensor Installation

    PR-33-S instruction manual 3.1.2 PR-33-S sensor installation PR-33-S SENSOR INSTALLATION MOUNTING RECOMMENDATIONS SENSOR SUPPORT - VERTICAL FLOW 1/2” thread 1/2” thread SENSOR SUPPORT - HORIZONTAL FLOW FLOW CELL ASSEMBLY/DISASSEMBLY MOUNTING COVER ASSEMBLY Cutout in flow cell aperture to align with temperature sensor http://www.kpatents.com/...
  • Page 23 3 Inline refractometer sensor Figure 3.1 Mounting in a cabinet © Copyright K-Patents 2019. All rights reserved.

  • Page 24: Check List For Pipe Mounting

    PR-33-S instruction manual 3.1.3 Check list for pipe mounting Most K-Patents inline refractometer models are mounted in a pipe. K-Patents recom- mends a minimum flow velocity of 1.5 m/s (5 ft/s). The diameter and form of the pipe and the process temperature all affect the measurement and need to be taken into account.

  • Page 25: Mounting Cover

    Connect the sensor to a PoE switch. Make sure you connect the sensor to a powered port, some switches have both PoE ports and normal ethernet ports. Then connect your laptop or control system to the switch. You can also use a K-Patents FC-11 Field Communicator.

  • Page 26: Connecting With Fieldbus Converter

    PR-33-S instruction manual 3.3 Connecting with Fieldbus converter The K-Patents Fieldbus Converter allows the connection to to Fieldbus and Industrial Ethernet. For more information see Fieldbus converter manual. Note: The converter can only send data. E.g. it is not possible to change the parame- ters through the converter.
  • Page 27 3 Inline refractometer sensor PR-33-S Refractometer PoE Switch LAN2 24/48V DC 12-48V DC Serial port P1 Modbus RTU Figure 3.3 Connecting to Modbus RTU © Copyright K-Patents 2019. All rights reserved.
  • Page 28 PR-33-S instruction manual PR-33-S Refractometer PoE Switch LAN2 LAN1 24/48V DC Modbus TCP or Ethernet/IP 12-48V DC Figure 3.4 Connecting to Modbus TCP Document/Revision No. Rev. 1.42 Effective: February 19, 2019...

  • Page 29: Startup And Use

    In addition to these measurements, the sensor monitors its internal temperature and humidity, which both are available on the Diagnostics page. The internal temperature should not be above 55 °C, and the humidity should be below 30 %. © Copyright K-Patents 2019. All rights reserved.

  • Page 30: Configuration And Calibration

    Figure 5.1 shows how the damping time affects the measure- ment. Note: The factory setting for damping in PR-33-S is 5 s linear. Avoid overdamping, the signal should not be made insensitive. Document/Revision No. Rev. 1.42...
  • Page 31 5 Configuration and calibration 10 s 20 s Time [s] Exponential damping 15 s 30 s Time [s] Linear damping Figure 5.1 Effect of damping time on measurement © Copyright K-Patents 2019. All rights reserved.

  • Page 32: Calibrating The Concentration Measurement

    3. The chemical curve: The sensor calculates the concentration value based on n TEMP according to chemical curves derived from available chemical literature and K-Patents expertise. The result is a temperature compensated calculated concen- tration value CALC. 4. Field calibration: Adjustment of the calculated concentration value CALC may be required to compensate for some process conditions or to fit the measurement to the laboratory results.

  • Page 33: The Chemical Curve

    Table 5.1 The chemical curve parameters A chemical curve is specific to the given process medium, e.g. sucrose or sodium hy- droxide. The set of parameters is given by K-Patents and should not be altered, except in case of changing to another process medium.

  • Page 34: Direct Bias Adjustment

    PR-33-S instruction manual Sample concentration determined by the user LAB% Calculated concentration value CALC Process temperature measurement in Centigrade Actual refractive index n Measurement in concentration units, the large size number CONC In addition to the calibration data, write down the sensor serial number.

  • Page 35: Regular Maintenance

    6.1 Preventive replacement of o-ring in EKC265 application The amine based chemical solvent EKC265 is formulated to remove post-etch residue from the wafer. K-Patents Semicon Process Refractometer is widely used to monitor the water content of the solvent. Field studies and experience have shown that the o-ring between the refractometer instrument body and flow cell has limited lifetime in EKC265.

  • Page 36: Troubleshooting

    PR-33-S instruction manual 7 Troubleshooting 7.1 Hardware 7.1.1 Message HIGH SENSOR HUMIDITY Tells that humidity measured inside the instrument exceeds 60 % relative humidity. The reason may be moisture leaking in through prism seal or the cover being open. Action: Please contact K-Patents.

  • Page 37: Message Prism Coated

    5. There are negative spikes in the optical image. The probable cause is dust or finger- prints on the CCD window. Please contact K-Patents. 6. The CCD card in the sensor is faulty. Please contact K-Patents. 7.2.3 Message PRISM COATED Cause: The optical surface of the prism is coated by the process medium or impurities in the process medium.

  • Page 38: Concentration Drift During Normal Operation

    PR-33-S instruction manual 7.2.7 Concentration drift during NORMAL OPERATION For drift upward or downwards to zero, suspect prism coating and clean the prism. 7.3 Diagnostic messages table Important: The messages are listed in descending order of priority. Example: If both...

  • Page 39: Ethernet Protocol Specification

    For this data acquisition, you’ll need to have suitable software on your computer. You can program a data acquisition program yourself following the specifi- cations below. For examples and ready-made applications, please contact K-Patents. 8.1 Communication protocol The communications protocol is based on UDP/IP to port 50023. It is a client/server protocol, where the sensor is the server and thus only sends information when the client (i.e.

  • Page 40: Response Format

    Note: All the key identifiers (see Section 8.2 for additional information) are case- insensitive. However, K-Patents recommends that they are written as in this specifi- cation. The server (refractometer) may send the response keys in any order. It will send the mandatory keys (marked with an asterisk in Section 8.2) of the specific request, but it...

  • Page 41: Request And Response Errors

    8.2.2 Protocol version The version query is responded with a value representing the server (refractometer) protocol version. 0x00000001 Request ID (none) Request data *Version Response key : integer, the server protocol version (currently 3) © Copyright K-Patents 2019. All rights reserved.

  • Page 42: Refractometer Information

    0x00000003 Request ID 0x00000000 Request data : always zero *SensorSerial Response keys : string, Pr-33-S serial number *SProcSerial : string, processor card serial number *SensorVersion : string, version number of the refractometer software 8.2.4 Measurement results The measurement result query gives the measured and calculated measurement values from the refractometer.

  • Page 43: Error Message Specification

    There may also be error-dependent extra keys. Other error codes may be returned. 0x00000003 is to be handled as unknown request. Codes with higher numbers refer to internal errors; contact K-Patents for more information on these. © Copyright K-Patents 2019. All rights reserved.
  • Page 44 PR-33-S instruction manual Document/Revision No. Rev. 1.42 Effective: February 19, 2019...

  • Page 45: Index

    Index angle of refraction 1 Firefox see browser fiber link 5 field calibration 26 BIAS adjustment 28 form 43 browser 10 service 27 flow velocity 15 minimum 18 CALC 26 CCD element 2 Chrome see browser HIGH SENSOR HUMIDITY 30 CONC 27 HIGH SENSOR TEMP 30 calibration...
  • Page 46 PoE switch 8 Main page 12 PRISM COATED 31 moisture ping 10 mounting 15, 18 principle of measurement 1 location 15 prism pipe diameter 18 coating 31, 32 NO OPTICAL IMAGE 30 refractive index 1 NO SAMPLE 31 network 4 network settings 1, 6 Safari see browser computer 6...
  • Page 47 EC declaration of conformity...
  • Page 49 PR-33-S refractometer field calibration form Fill in this form and fax it to K-Patents Oy or to your local service representative. For <http://www.kpatents.com/> contact information, please see Sensor serial no: Customer: Address: Fax: Email: Sample description: Solvent (water/other): Laboratory method:...
  • Page 52 1804 CENTRE POINT CIRCLE, SUITE 106 NAPERVILLE, IL 60653, USA TEL. (630) 955 1545 FAX (630) 955 1585 info@kpatents.com K-PATENTS (SHANGHAI CO.,LTD) ROOM 1509 TOMSON COMMERCIAL BUILDING, NO. 710 PUDONG DISTRICT, SHANGHAI, CHINA TEL+86 21 5087 0597/0598 FAX +86 21 5087 0598...

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