ATAGO PRM-2000 A Instruction Manual
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ATAGO PRM-2000 A Instruction Manual

In-line refractometer
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In-line Refractometer
PRM-2000
Instruction Manual
Cat.No 3641
PRODUCT REGISTRATION & WARRANTY CARD
https://www.atago.net/registration/
english/registration.php
3641-E11

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  • Page 1 3641-E11 In-line Refractometer PRM-2000 Instruction Manual Cat.No 3641 PRODUCT REGISTRATION & WARRANTY CARD https://www.atago.net/registration/ english/registration.php...

  • Page 2: Table Of Contents

    Setting Measurement SET UP Mode ....................26 Measurement Procedure ........................49 Cleaning the Prism ..........................50 Definitions of Error Messages ......................51 Availability of Parts ..........................52 Specifications ............................. 53 Dimensions ............................54 Repair Service and Warranty Period ....................55 ATAGO CO.,LTD. Service Centers ....................56...

  • Page 3: Precautions For Use

    Do not attempt to repair, modify, or disassemble If the instrument is dropped or is subjected to a the instrument yourself. strong shock, have it inspected by an ATAGO Improper servicing may result in fire, electrical distributor. Fire or malfunction may result if the shock, or burns.
  • Page 4 Inserting the power plug in any other outlet may may result.For a new power cable and plug, result in short circuiting the unit, smoking or fire. contact your ATAGO distributor.  ...
  • Page 5 Handling of plug (Continued)  CAUTION ◇ ◇ ◇ Do not insert or Be sure to hold and pull the plug when Ensure the grounding pin disconnect the power disconnecting the power cable from the properly connected plug with wet hands. outlet.

  • Page 6: Refractive Index And Brix(%)

    2. Refractive Index and Brix(%) 2-1. What is refractometer? When a straw is placed into a glass filled with water, the straw appears to bend. Whe n a straw is placed into a glass filled with sugar water, the straw appears to bend much more sharply than in the case of water alone.

  • Page 7: Unpacking And Installation

    3. Unpacking and Installation 3-1. Unpacking ① Unpack the unit and visually check for any damages that may have occurred during transit. ② Make sure that the following components are included:   PRM-2000α detection section ....1 O-ring (Silicon)..........1 ...

  • Page 8: Names And Functions Of Components

    4. Names and Functions of Components 4-1. Detection Section (Fig.4-1・Fig.4-2) ① ④ Prism Air cooling fin Sample material contacts the prism surface to Dissipates heat to preserve the unit's allow for the measurement of its refractive electronic components when measuring high index, Brix and/or concentration.
  • Page 9 4-2. Display Section (1) Operator section (Fig.4-3) ① ⑥ START/STOP key Measurement indicator Indicates the current mode of measurement; Start or stops measurement (turning the power that is continuous or halted. on automatically begins measurement). ② During use, the yellow light blinks. SCALE key ⑦...
  • Page 10 (2) Rear section (Fig.4-4) ① ④ Power key Recorder output terminal Press to turn on the calculation display Use to connect the calculation display section section. to a recorder. ② ⑤ Alarm Output and (External) Scale Switching Detection section - display section connection Terminal terminal: Use to handle the alarm signal and/or change...

  • Page 11: Mounting The Detection Section

    5. Mounting the Detection Section   WARNING ◇ Installation: Before performing installation procedures, be sure the display section's power switch is turned off and the power supply cable is unplugged. Attempting to perform installation while the instrument is powered on may increase the likelihood of electric shock. ...
  • Page 12 5-2. Mounting the Sample Inlet Unit Fit the sample inlet unit into the leading section of the detection part, and secure the sample inlet unit with the attached clamp and O-ring provided. O-ring (silicon or EPDM) O-ring Clamp (silicon or EPDM) Fig.5-2 ...
  • Page 13 5-3. Mounting on the Piping (main) (in the case of L type) Mount the detection section on the piping, observing the flow direction of the fluid to ensure it will hit the prism surface of the detection section (Fig.5-3). Fluid flow Fig.5-3 5-4.

  • Page 14: Mounting The Display Section

    6. Mounting the Display Section   WARNING ◇ Installation: Before performing installation procedures, be sure the display section's power switch is turned off and the power supply cable is unplugged. Attempting to perform installation while the instrument is powered on may increase the risk of electric shock. It is recommended that the display section is mounted in a control box.
  • Page 15 φ11.5 Accessories: Hexagon bolt··············· 2 Spring washer Plain washer ··············· 4 Plain washer Hexagon bolt M6×12 Fig.6-2 Panel thickness Plain washer Schematic 2pcs 2pcs Table 6-1...

  • Page 16: Connecting The Detection Section To The Display Section

    7. Connecting the Detection Section to the Display Section   WARNING ◇ Connecting/disconnecting the cable and connector: Before connecting/disconnecting the cable and connector, be sure the display section's power switch is turned off and the power supply cable is unplugged.
  • Page 17 Detection section Front of the calculation display section Back of the calculation display section DS-2 cable for connecting the display and detection sections Fig.7-2...

  • Page 18: External Output

    8. External Output   WARNING ◇ Connecting/disconnecting the cable and terminal: Before connecting/disconnecting the cable and terminal, be sure the display section's power switch is turned off and the power supply cable is unplugged. Attempting to connect/disconnect the cable and terminal while the instrument is powered on may increase the risk of electric shock.
  • Page 19 8-2. RS-232C Output This unit provides RS-232C outputs for use with a PC via an external output port installed on the rear panel of the calculation display section. Use the exclusive connecting cable (option) to collect RS-232C outputs. Keep the calculation display section and PC at most 15m apart. ①...
  • Page 20 8-3. Alarm Output (high- and low-limiter output) The alarm output functions based on the established range of acceptable measurement values. When a value is detected that falls outside of the acceptable range alarm output is transmitted from the detection section. The high-limiter and low-limiter output circuit has a photocoupler with a transistor open collector in the final stage.
  • Page 21 c. Feed a sequencer or the like at the signal level (TTL) Photocoupler Sequencer Fig.8-10 ※ R (resistance) and V+ are not necessary if the input to a sequencer or the like is pulled up. Table 8-4 Recommended photocoupler operating conditions (Type TLP523-2) Parameter Symbol Minimum...

  • Page 22: Turning On The Power

    ◇ Do not use power cables that are damaged, broken or modified. Use of such cables may increase the likelihood of fire, electrical shock or burns. Contact ATAGO or an authorized ATAGO distributor for repair or replacement cables.  CAUTION ◇...

  • Page 23: Measurement Scale Settings

    10. Measurement Scale Settings 10-1. Scale The instrument has 5 types of scales as listed below. The method for switching from one scale to another will be described in this section. Table 10-1 List of Scales Scale CH (Channel) Data contents Refractive Index （Refractive Index）...
  • Page 24 10-3. Change from nD Mode to Brix CH1 ① During measurement, the READING light blinks and the LED lighting display will show nD readings (Fig.10-1). By pressing the START/STOP key, the READING light will turn off and "StoP" will display, ceasing measurement (Fig.10-2).
  • Page 25 10-4. Change from Brix CH1 Mode to nD ① During measurement, the READING light blinks, and the display will show Brix (%) readings (Fig.10-4). By pressing the START/STOP key, the READING light will turn off, and "StoP" will display, ceasing measurement . The "Brix (%)"...
  • Page 26 10-6. Confirmation of Measurement Values at Each Mode This operation is for confirming measurement values at each mode when or after concentration scale (Conc) is set. ① Press START/STOP to stop measurement. ② "StoP" will be displayed on the measurement value display.

  • Page 27: Setting Measurement Set Up Mode

    11. Setting Measurement SET UP Mode 11-1. Calibration Procedure ① Make sure that the detection section (sample inlet unit) is properly mounted on the piping. ② Let purified water or a reference sample flow into the piping. If the last measurement value was LLL.LLL or HHH.HHH, the screen for setting the b ias will not appear. ③...
  • Page 28 ⑧ Press the ENTER key to access the SET UP mode. The most recent measurement value will be displayed. If the last measurement value was LLL.LLL or HHH.HHH, the screen for setting the bias will not appear. Press the SCALE key to return to the previous "1. bIAS" screen (Fig.11-3).
  • Page 29 11-2. Setting alarms Set the low and high-limit value of refractive index, Brix or concentration for alarm and amount of time until alarm is outputted. Set for each scale as needed. Table 11-1 Factory default setting Setting range The difference between low and low-limit high-limit...
  • Page 30 ⑦ Press the ENTER key to set the selected value. The H.OVER setting will appear next. Adjust the high-limit value in the same manner as in step ⑥ and press the ENTER key to set the selected value. ⑧ The temperature display will then indicate "SEC". Set the period of time the measurement values can continue to exceed programmed Low and high-limit value, after which the alarm will be activated (Fig.11-9).
  • Page 31 11-3. Setting recorder output Set the low and high-limit value of the recorder output range. Set for each scale as needed. Table 11-3 Factory default setting Setting range The difference between low and low-limit high-limit low-limit value high-limit value high-limit value. value value Refractive...
  • Page 32 ⑦ To set the changes, press the ENTER key. The temperature display will indicate "Hi", and the screen for setting the recorder output high-limit value of refractive index, Brix, or concentration will appear (Fig.11-12). Use the ↑ ↓ keys to change the value, and select the decimal place with the ←...
  • Page 33 11-4. Setting Conc (User Scale) In addition to the nD and Brix（CH1 to 3） scales, this unit is equipped with Conc mode. This is the User Scale, the feature that allows the user to display the sample Concentration of their choice. To program a user scale, create a conversion table showing the refractive index of the sample and the Concentration at various temperatures.
  • Page 34 (2) Creating Data Table (2-1) Definition and Format of Data Table ① The data table consist of the following three definitions: temperature, Refractive Index, and Concentration. ② The maximum number of data points possible is: 6 for temperature and 7 for C oncentration. ③...
  • Page 35 (2-2) An Example of How to Create Data Table To create a data table, first prepare sample solutions of different concentrations. Then, use an accurate refractometer to measure their refractive indices at di fferent temperatures. This chapter explains the procedure of creating a data table for caustic soda (NaOH) solutions. [Items to prepare] ...
  • Page 36 (3) Transferring Data A data table needs to be re-formatted for the user scale to be transferred to the PRM-2000α. Save the data in the format of a text editor for Windows. Connect the computer and the calculation display section via the designated RS-232C cable and transfer the data.
  • Page 37 (3-3) Creating Text File ① Start up a personal computer installed with Windows. Click the Start button at the bottom left of the screen. ② Click program. ③ Click Accessories. ④ Click Notepad. ⑤ The Notepad should appear (Fig.11-15). Fig.11-15...
  • Page 38 ⑥ Create a text file as in Fig.11-16 based on Data Table 11-5  Enter everything with half-sized characters. See for meaning of individual numeric values.  When completed, it becomes the screen of Fig.11-18.  Moreover, TAB codes are not displayed on the screen, so move the blinking cursor character by character and check the number of TAB codes.
  • Page 39 Examples of entry  If you enter concentrations as 0.0%, 10.0%, 20.0%, enter 1 for the number of display digits of a concentration.  If you enter concentrations as 10.000%, 20.000%, 30.000%, enter 3 for the number of display digits of a concentration.
  • Page 40 ⑧ Open the file to make sure that the complete data are saved. Click on File and then Exit to close (Fig.11-20). A text file has been successfully created. Fig.11-20...
  • Page 41 (4) Preparing a PC for Data Transmission Download a terminal emulator for PC serial communication. Here, the open-source software “Tera Tarm” is used as an example. ※ When the PC does not have a 9-pin D-sub connector, purchase a USB/serial adapter. RE-55202 : USB serial conversion adapter Download Tera Term from a website, such as the one below: http://ttssh2.sourceforge.jp/index.html.en/...
  • Page 42 ③ The serial settings are conformed to the instrument settings. Enter the port number selected in step ①. Click OK. 9600 ④ Click Setup, and then Terminal port. ⑤ Enter the settings as shown below and Click OK. ※ Make sure that the "Local echo" is checked.
  • Page 43 (5) Preparing PRM-2000 α for Data Reception ① Select "4. Conc" on the SET UP mode, using the ↑ ↓ keys（Fig.11-21）. ② Press the ENTER key to confirm the selection. The screen is ready for Conc input. "dAtA" appears on the measurement result display (Fig.11-22). Press the SCALE key to return to the previous "4.
  • Page 44 ② Open the saved file created in Step ⑦ "(3-3) Creating A text File（Fig.11-24）. Fig.11-24 ③ Click Open in Fig.11-24 to start the data transfer. The instrument will beep once the transfer is completed, and then, the data as programmed in the PRM-2000α...
  • Page 45 11-5. Brix Minimum Resolution Set-Up ① Press the START/STOP key to pause the measurement. ② Press the SCALE key 5 times. The SET UP light will then blink, and "SEt" will be displayed on the measurement value display (Fig.11-1). ③ Press the ENTER key and the SET UP light comes on.Using the ↑...
  • Page 46 11-6. Scale ON/OFF Set-Up This setting is for displaying only the particular scale(s) used on a regular basis. Scale Channel nD（Refractive Index） Brix CH1 Brix CH2 Brix CH3 Conc（Concentration） For example, to display only "Brix CH1" and "Conc (concentration)" : select "ON" for the 2 aforementioned scales and "OFF"...
  • Page 47 ⑦ The Brix CH3 ON/OFF setting screen will be displayed. The Brix LED will light up and "3" will be displayed in "CH." Use the ↑ ↓ keys to select ON or OFF (ON: Brix will be displayed on the measurement results display screen, OFF: results will not be displayed)（Fig.11-34）.
  • Page 48 11-7. Measurement Interval Set-Up ● Measurement interval: " c - # " There are 5 options of intervals at which the unit takes Examples of measurement interval measurements. The factory default is the shortest interval "c-1" wherein measurements are taken every "c-1"...
  • Page 49 11-8. S Level ●Mode-S level: " d - # " The Mode-S feature is designed to improve the measurement stability of samples that may have conventionally resulted in fluctuating readings. There are 5 levels, wherein the larger the number is, the better the stability. For samples that gi ve stable readings, the factory default level 1 is sufficient.

  • Page 50: Measurement Procedure

    Avoid unauthorized repairs or modifications, as these could increase the likelihood of fire, electrical shock or burning hazards. ◇ If the unit is dropped or suffers some other heavy impact, please contact your ATAGO distributor for troubleshooting information.Continued use of an instrument which has been dropped could increase fire or smoking hazards.

  • Page 51: Cleaning The Prism

    13. Cleaning the Prism   WARNING ◇ Handle all harmful substances with extreme caution. Fully understand a sample's properties before applying to this instrument. Ensure no harmful sample substances are present when dismantling.  CAUTION Temperature of the cleaning liquid ◇...

  • Page 52: Definitions Of Error Messages

    14. Definitions of Error Messages Measurement value display Error message Explanation Action L.LLLLL A sample was measured that was less than Measure a sample within the the nD (refractive index) measurement measuring range. range, or measurement was taken with nothing on the prism. LLL.LLL A sample was measured that was less than Measure a sample within the...

  • Page 53: Availability Of Parts

    15. Availability of Parts The table below lists the customer-serviceable and expendable parts for this unit. For their availability, contact your ATAGO distributor. Part name Part number Summary RS-232C output cable RE-65301 4-pin connector, D-Sub 9-pin connector on one end, standard 10mm.

  • Page 54: Specifications

    16. Specifications The standard specifications of this product are summarized below. Measurement items One of Refractive Index (nD),Brix (Automatic temperature compensation adjusted for 3 types of samples:sucrose, high-fructose corn syrup and sugar-free beverages [2% or less]), and Concentration (%) (temperature compensation according to samples) Temperature Measuring range...

  • Page 55: Dimensions

    17. Dimensions Detection section (Weight：4.1kg) Temperature sensor Prism base: Sapphire Cooling fin Lid for cooling fin Prism head: SUS316L External pipe: SUS316L Display section (Weight : 3.3kg) 156.6 183.6 (50) (31.8) (22.5) 2-φ6.5 ※ Dimensions are approximate.

  • Page 56: Repair Service And Warranty Period

    The warranty of this unit is one year after the date of purchase. Any trouble detected during the warranty period will be performed without charge. After the warranty has expired, the cost of repairs will be subject to evaluation. Ask your ATAGO distributor concerning this matter.

  • Page 57: Atago Co.,Ltd. Service Centers

    19. ATAGO CO.,LTD. Service Centers ATAGO has Authorized Service Centers around the world. Below is the list of countries where you can find an ATAGO Authorized Service Center. If your ATAGO instrument requires servicing please contact ATAGO at the following e-mail address.
  • Page 58 Headquarters: The Front Tower Shiba Koen, 23rd Floor 2-6-3 Shiba-koen, Minato-ku, Tokyo 105-0011, Japan TEL: 81-3-3431-1943 FAX: 81-3-3431-1945 overseas@atago.net http://www.atago.net/ TEL: 1-425-637-2107 customerservice@atago-usa.com TEL: 91-22-28544915 / 40713232 customerservice@atago-india.com TEL: 66-21948727-9 ,66-21171549 customerservice@atago-thailand.com TEL: 55 16 3913-8400 customerservice@atago-brasil.com TEL: 39 02 36557267 customerservice@atago-italia.com...

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