1. Manuals
  2. Brands
  3. K-Patents Manuals
  4. Measuring Instruments
  5. PR-43 Series
  6. Instruction manual

K-Patents PR-43 Instruction Manual

Process refractometer
Hide thumbs Also See for PR-43:
Table of Contents

Advertisement

Quick Links

Download this manual
Process Refractometer PR-43
Instruction Manual
Document/Revision No. IM-EN-PR43GEN: Rev. 1.03
Effective: September 20, 2016

Advertisement

Table of Contents
loading

Related Manuals for K-Patents PR-43

Summary of Contents for K-Patents PR-43

  • Page 1 Process Refractometer PR-43 Instruction Manual Document/Revision No. IM-EN-PR43GEN: Rev. 1.03 Effective: September 20, 2016...
  • Page 2 General safety considerations The process medium may be hot or otherwise hazardous. Use shields and protective clothing adequate for the process medium - do not rely on avoid- • ance of contact with the process medium. • Precautions when removing a refractometer from the process line : Check first that the process line is depressurized and drained.
  • Page 3 Full warranty information is available in the Support section of http://www.kpatents.com. Please note that prior to shipping any products or items to K-Patents, a Request for Return Materials Authorization (RMA) must be filled in and submitted to K-Patents Order Handling department.

  • Page 4: Table Of Contents

    Ethernet connection ........2.3.1 IP settings for the PR-43 ....... . .
  • Page 5 Error message specification ....... . 34 PR-43 refractometer field calibration form ......35 EU declaration of conformity .
  • Page 6 PR-43 instruction manual Document/Revision No. /1.03 Effective: September 20, 2016 IM-EN-PR43GEN...

  • Page 7: Introduction

    1 Introduction 1 Introduction The K-Patents in-line process refractometer is an instrument for measuring liquid con- centration in the process line. The measurement is based on the refraction of light in the process medium, an accurate and safe way of measuring liquid concentration. See Chapter 7 for more information on the measurement principle.

  • Page 8: Refractometer Connections

    Platform 4 cable M12-8 pin, A-code, F+M Ethernet, mA, 24V The PR-43 refractometer requires a 24 V DC power supply (allowable tolerance is m (295ft) max. 90m (295ft) ±10 %). The current consumption of the refractometer is less than 80 mA. The power supply should be shielded from external voltage surges.
  • Page 9 2 Refractometer connections Figure 2.2 mA and Ethernet output © Copyright K-Patents 2016. All rights reserved.

  • Page 10: Ethernet Connection

    PR-43 instruction manual 2.3 Ethernet connection The Ethernet connection enables data download from a refractometer to a computer. Any type of computer (PC, Mac, mainframe...) with a compatible network connection can be configured to view and download data from the refractometer. The refractome- ter can be configured and monitored without any special software by using a standard...
  • Page 11 (see figure 2.6). The range may be up to several kilometers with a suitable fiber connection. Fiber Ethernet Media Media converter converter 24 V Figure 2.6 Using fiber link to connect refractometer(s). © Copyright K-Patents 2016. All rights reserved.

  • Page 12: Ip Settings For The

    PR-43 instruction manual 2.3.1 IP settings for the PR-43 All PR-43 refractometers are shipped with the factory default IP address of 169.254.43.43. 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, usually without changing the network settings of the computer.

  • Page 13: Configuring A Network Of Refractometers

    1...254. The subnet mask (or netmask) is in this case 255.255.255.0. (see figure 2.8). Note: There are no settings for subnet mask, default gateway or name servers in the refractometer, as these settings are not required. © Copyright K-Patents 2016. All rights reserved.

  • Page 14: Testing The Ethernet Connection

    PR-43 instruction manual IP = 192.168.43.3 IP = 192.168.43.100 netmask = 255.255.255.0 IP = 192.168.43.2 IP = 192.168.43.1 Hub/Switch Figure 2.8 A network of PR-43s. 2.3.4 Testing the Ethernet connection When the refractometer is connected to a switch, the corresponding link light should light up in the switch.
  • Page 15 figure 2.9. Figure 2.9 Pinging address 169.254.23.33, ping returned fully and connection ok. © Copyright K-Patents 2016. All rights reserved.

  • Page 16: Web Interface

    3. The address (URL) to access the refractometer’s homepage is the refractometer’s IP address, which for a factory default set PR-43 it is 169.254.43.43. Type the IP address in the browser address bar, then “enter”, just as you would enter any other web address (for example http://www.kpatents.com/)

  • Page 17: Main Page

    The small numeric display in the bottom right of the page indicates the number of measurement cycles (one per second) since the last login to the refractome- ter. Figure 3.2 Measurement cycles since last login © Copyright K-Patents 2016. All rights reserved.

  • Page 18: Diagnostics

    PR-43 instruction manual 3.2 Diagnostics The Diagnostics page (Figure 3.3) displays the diagnostic values produced by the refrac- tometer. In addition to the measurement results, the page shows several intermediate results and other diagnostic values. The optical images produced by the refractometer can be seen on this page. Both the images and the diagnostic values are live values, updated with an interval of a few seconds.
  • Page 19 Undo changes button. Note: The parameter changes are only saved when you click the Submit changes button. If you make parameter changes, but e.g. go to the Diagnostics page, the parameters are not changed and you’ll get the old parameters. © Copyright K-Patents 2016. All rights reserved.

  • Page 20: Measuring Field Samples

    PR-43 instruction manual 3.3.1 Measuring field samples The diagnostics page (Figure 3.3) offers a possibility to measure samples for field cali- bration purposes. A sample can be measured by clicking the Field point button on the page. After clicking the button the refractometer will measure the sample ten times and then it shows the average and standard deviation of the measurements.

  • Page 21: Optical Image

    Optical image link on the right side of the Diagnostics page. Figure 3.6 Raw optical image of a compact refractometer Figure 3.7 Raw optical image of a probe refractometer © Copyright K-Patents 2016. All rights reserved.

  • Page 22: Verification

    PR-43 instruction manual 3.4 Verification The refractometer verification can be performed on this page (figure 3.8). Follow the instructions on the verification page to perform instrument verification. Figure 3.8 Verification page Document/Revision No. /1.03 Effective: September 20, 2016 IM-EN-PR43GEN...

  • Page 23: Startup

    4.2 Viewing refractometer status The basic information on the measurements is shown on the main page of the refrac- tometer (section 3.1). More information is shown on the Diagnostics page (section 3.2). © Copyright K-Patents 2016. All rights reserved.
  • Page 24 PR-43 instruction manual The measurement result is calculated from the refractive index (n ) and process tem- perature (T) values. Both of these values are on the main page. In addition to these measurements, the refractometer monitors its internal temper- ature and humidity, which both are available on the Diagnostics page.

  • Page 25: Configuration And Calibration

    Figure 5.1 shows how the damping time affects the measure- ment. Note: The factory setting for damping in PR-43 is 5 s linear. Avoid overdamping, the signal should not be made insensitive. © Copyright K-Patents 2016. All rights reserved.
  • Page 26 PR-43 instruction manual 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 Document/Revision No. /1.03 Effective: September 20, 2016 IM-EN-PR43GEN...

  • Page 27: Configuring Ma Output

    Measurement Data failure failure 20.5 Figure 5.2 Default mA output values The refractometer sends default mA if the message is SHORT-CIRCUIT, NO OPTICAL IMAGE, TEMP MEASUREMENT FAULT, NO SAMPLE PRISM COATED © Copyright K-Patents 2016. All rights reserved.

  • Page 28: Calibrating The Concentration Measurement

    PR-43 instruction manual 5.2 Calibrating the concentration measurement CCD-camera Pt-1000 LAYER 1 Refractometer nD calibration A parameters TEMP LAYER 2 Chemical curve C parameters CALC TEMP LAYER 3 Field calibration F parameters mA Output CONC Figure 5.3 The layers of concentration...

  • Page 29: The Chemical Curve

    Record the calibrating data on the PR-43 field calibration form (found in the end of this manual), also available at <http://www.kpatents.com/> and by emailing a request to <info@kpatents.com>.
  • Page 30 PR-43 instruction manual Each data point consists of: 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 refractometer serial number.

  • Page 31: Troubleshooting

    Action: See the refractometer specific manual about choosing mounting location and cooling the refractometer head. 6.2 Measurement 6.2.1 Message OUTSIDE LIGHT ERROR or OUTSIDE LIGHT TO PRISM Cause: The measurement is not possible or is disturbed because outside light reaches the camera. © Copyright K-Patents 2016. All rights reserved.

  • Page 32: Message No Optical Image

    5. There are negative spikes in the optical image. The probable cause is contamination on the optical path. Please contact K-Patents. 6. The CCD card in the refractometer is faulty. Please contact K-Patents. 6.2.3 Message PRISM COATED Cause: The optical surface of the prism is coated by the process medium or impurities in the process medium.

  • Page 33: Message No Sample

    6.2.6 Message TEMP MEASUREMENT FAULT Indicates faulty temperature element. Please contact K-Patents. Note: A difference to some other process temperature measurement is not a fault. The refractometer shows the true temperature of the prism surface.

  • Page 34: Diagnostic Messages Table

    PR-43 instruction manual 6.3 Diagnostic messages table Important: The messages are listed in descending order of priority. Example: If both are activated, only will be NO OPTICAL IMAGE TEMP MEASUREMENT FAULT NO OPTICAL IMAGE shown. Message Section 6.2.1 OUTSIDE LIGHT ERROR 6.2.2...

  • Page 35: Principle Of Measurement

    7 Principle of measurement 7 Principle of measurement The K-Patents inline refractometer determines the refractive index n of the process solution. It measures the critical angle of refraction using a yellow LED light source with the same wavelength (589 nm) as the sodium D line (hence n ).
  • Page 36 PR-43 instruction manual Low concentration High concentration Figure 7.2 Optical images The position of the shadow edge is measured digitally using a CCD element (Figure 7.3) and is converted to a refractive index value n by a processor inside the refractometer.

  • Page 37: 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 refractometer is the server and thus only sends information when the client (i.e.

  • Page 38: 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 39: 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 2016. All rights reserved.

  • Page 40: Refractometer Information

    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. Document/Revision No. /1.03 Effective: September 20, 2016...

  • Page 41: Apr-43 Refractometer Field Calibration Form

    A PR-43 refractometer field calibration form A PR-43 refractometer field calibration form Fill in this form and email (or fax) it to K-Patents Oy or to your local service representa- tive. For contact information, please see http://www.kpatents.com/. Refractometer serial no:...
  • Page 42 PR-43 instruction manual For closer instructions, see Section 5.2.2. Document/Revision No. /1.03 Effective: September 20, 2016 IM-EN-PR43GEN...

  • Page 43: Beu Declaration Of Conformity

    B EU declaration of conformity B EU declaration of conformity © Copyright K-Patents 2016. All rights reserved.
  • Page 44 K-Patents Oy K-Patents, Inc. K-Patents (Shanghai) Co., Ltd P.O. Box 77 1804 Centre Point Circle, Room 1509, FI-01511 Vantaa, Finland Suite 106 Tomson Commercial Building, No.710 tel. +358 207 291 570 Naperville, IL 60653, USA Dongfang RD fax +358 207 291 577 tel.

Table of Contents