INSTRUCTION MANUAL CYBERSCAN TURBIDIMETER TB1000 BENCH TURBIDITY METER Technology Made Easy ... TABLE OF CONTENTS 1 2 2.1 2.2 INTRODUCTION UNPACKING THE INSTRUMENT Packing List of Contents Unpacking and Inspection of the Instrument and Accessories 1 1 1 1 3 4 4.1 4.2 BECOMING FAMILIAR WITH THE INSTRUMENT ROUTINE OPERATION Grab Sample Measurement (Routine Measurement) Pour Through Sample Measurement (Optional Accessory) 2 3 3 4 5 5.1 5.2 CALIBRATION PROCEDURES Indexing the Calibration Standard(s) Calibration Procedure 4 4 5 6 6.1 6.2 6.3 6.4 6.5 6.6 USER SELECTABLE PARAMETERS Setting the Year Setting the Day and Month Setting the Time Setting the Calibration Interval Setting the Printing Function Completing Selectable Parameters 6 6 6 6 6 7 7 7 7.1 TROUBLESHOOTING System Warning Message(s) 7.1.1 Flashing "Cal" block 7.1.2 Flashing "LoBat" block System Error Message(s) Factory Default Parameters 7 7 7 7 7 8 7.2 7.3 8 8.1 8.2 8.3 ROUTINE MAINTENANCE Cuvette Cleaning and Care Lamp Replacement Battery Replacement 8 8 8 9 9 SPECIFICATIONS 10 11 11 10 ACCESSORIES AND REPLACEMENT PARTS LIST 10.1 Glossary CyberScan TB1000 1 Introduction Thank you for purchasing Eutech Instruments' CyberScan Turbidimeter TB1000 series White Light or Infrared turbidity meter (CyberScan TB1000 hereafter). These turbidity meters have been designed for simple and easy measurement of turbidity. This manual contains simple steps to follow to ensure that your instrument is operating properly. This material assumes that the user knows how to obtain representative samples of their process and has some familiarity with measuring the turbidity of samples. The following sections describe how to use and care for your CyberScan TB1000. In certain instances notes or reminders have been added to give further clarification to the instructions. Refer to the Table of Contents or the Glossary to easily find specific topics and to learn about unfamiliar terms. 2 2.1 Unpacking The Instrument Packing List of Contents Item Description CyberScan TB1000 Laboratory Turbidimeter Instrument Accessory Kit for TB1000 (0.02 NTU, 10.0 NTU, 1000 NTU Standards and 2 empty sample cuvettes) TB1000 Laboratory Turbidimeter Instruction Manual Qty 1 1 1 Note: Power adapter (120/220VAC) has to be ordered separately; see Section 10 Accessories and Replacement Parts List for details. 2.2 Unpacking and Inspection of the Instrument and Accessories Remove the Accessory Kit and the instrument from the packing carton. Carefully inspect all items to ensure that no visible damage has occurred during shipment. NOTE: Extra care should be taken when unpacking, opening, and handling the calibration standards and sample cuvettes in the Accessory Kit; surface scratches or finger smudges on the cuvette surface may cause measurement errors. Handle these items by the top area of the cuvette only. 1 CyberScan TB1000 3 Becoming Familiar with The Instrument Figure 1 is a depiction of the front of the CyberScan Turbidity Series TB1000. Not shown in this picture is the RS232 serial printer port and 12V DC power plug connector, which are located on the back panel of the instrument. Figure 1: Front view of CyberScan Turbidity Meter TB1000 The user interface of the CyberScan TB1000 has been designed with a 5 key touchpad and user display. The five keys of the Touch Pad and their functionality are described below: 2 CyberScan TB1000 The ON/OFF key is used to turn the instrument on and off. The CAL key is used to enter, or exit, calibration mode. Both the and keys are used to set numerical values and to scroll through lists. The ENTER key stores value on the screen and/or causes the turbidity data to be output to the printer port when pressed. Figure 2 illustrates all the items that can appear on the display. The upper row of the display (1) is used for reporting the turbidity levels and to provide user guidance in the customer setting routine. The lower row of the display (2) is used to display the stored turbidity reading and to communicate error messages and user guidance. The display has several status indicators (3) which distinguish the operation of the instrument. In addition, the "LoBat" block (4) flashes when the batteries need to be replaced. Finally, several indicators (5) provide guidance when the customer setting routine is being used and when the calibration routine is being used. 4 Routine Operation The CyberScan TB1000 measures and reports the turbidity of a sample in nephelometric turbidity units (NTU). NOTE: Nephelometric turbidity units (NTU's) are numerically equivalent to Formazin turbidity units (FTU's) (See Glossary). Sections 4.1 and 4.2 describe how to use the CyberScan TB1000 under normal operating conditions. These sections include details on how to input certain customer selectable parameters and how to take normal, routine turbidity measurements using the CyberScan TB1000. 4.1 Grab Sample Measurement (Routine Measurement) The following steps describe how to measure the turbidity of a sample using the CyberScan TB1000: 1. Turn on the CyberScan TB1000 using ON key. The instrument will be in the normal mode (the "AUTO" block should be illuminated). Allow instrument to warm up for at least 30 minutes. 2. Sample approximately 100 ml of the process stream as you would normally do for turbidity measurement. 3. Obtain a clean and dry sample cuvette. 4. Rinse the cuvette with approximately 20 ml of the sample water (2/3 of cuvette volume), capping the cuvette with the black light shield (cuvette top) and inverting several times. Discard the 20ml of used sample and repeat the rinsing procedure two more times. 5. Completely fill the rinsed cuvette (from step 4) with the remaining portion (approximately 30 ml) of the grab sample and then cap the cuvette with the black light shield. Ensure that the outside of the cuvette is dry, clean and free from smudges** . 6. Place the cuvette in the CyberScan TB1000 and index the cuvette to the lowest reading (the displayed turbidity is continuously updated on the upper row of the display). Once the cuvette is indexed, the reading displayed on the CyberScan TB1000 display should be recorded as the sample turbidity (see Glossary for more information on indexing a cuvette). ** Any typical glass cleaner can be used along with a lint free cloth, or tissue, to clean the outside of the cuvette. 7. If you are measuring and comparing more than one sample, pressing ENTER key will display the latest reading (displayed on the lower row of the display). In addition, if you have selected printer output in the customer setup section, pressing ENTER key will output data to the RS232 port. Repeat steps 2 through 7 for all of your samples. NOTE: The CyberScan TB1000 may display "- - -" for a few seconds while it determines the correct reading. NOTE: An indication of "Or" (over-range) in the upper row of the display indicates that the standard in the sample well is higher than 1000 NTU. WARNING: NEVER pour liquid directly into the sample well of the CyberScan TB1000, always use a cuvette. The CyberScan TB1000 will accurately measure the turbidity of a sample using only cuvettes with the black light shield on the cuvettes provided or the optional pour through assembly. 3 CyberScan TB1000 4.2 Pour Through Sample Measurement (Optional Accessory) Install the pour through assembly and index it according to the instruction sheet that accompanies the assembly. The following steps describe how to measure the turbidity of a sample using the CyberScan TB1000 fitted with the optional pour through assembly: 1. 2. 3. Turn on the CyberScan TB1000. The instrument will be in the normal automatic mode (the "AUTO" block should be illuminated). Allow instrument to warm up for at least 30 minutes. Sample approximately 500 ml of the process stream as you would normally do for turbidity measurement. Pour the complete 500 ml sample into the pour through assembly. Record the turbidity of the sample displayed after the entire 500 ml sample has been poured into the assembly and the flow to drain has ceased, and after the reading has stabilized. If you are measuring and comparing more than one sample, pressing ENTER key will store the reading (displayed on the lower row of the display). In addition, if you have selected printer output in the customer setup section pressing ENTER key will output data to RS232 port. Repeat steps 2 through 4 for all of your samples. 4. 5. The sample cuvette used in the pour through assembly is identical to the two standard sample cuvettes supplied with the CyberScan TB1000. Clean the cuvette on a periodic basis according to your experience with the type and turbidity of the sample found in your facility. 5 Calibration Procedures The CyberScan TB1000 Turbidimeter has been factory-calibrated using Eutech Instruments calibration standards that are traceable to the primary turbidity calibration standard, Formazin. It is possible to use the instrument directly out of the box. However, re-calibration of the instrument using the calibration set included is recommended to allow you to become familiar with the operation of the instrument and the calibration procedures. Eutech Instruments recommends that you use the following materials during calibration to achieve the accuracy stated in this manual: 1. 2. 3. De-ionized water filtered through a 0.2 µm filter, or 0.02 NTU Calibration Standard 10.0 NTU Calibration Standard 1000 NTU Calibration Standard Under normal conditions, re-calibration is recommended at least once every three months. You can select a predetermined calibration interval (see section 5.3) for automatic prompting for calibration: if you exceed the selected calibration interval, the "Cal" block will flash until the instrument is recalibrated. NOTE: It is well known that diluted Formazin is unstable. If you choose to use Formazin to calibrate the CyberScan TB1000, ensure that you are using a fresh stock suspension of Formazin to achieve the accuracy quoted for the CyberScan TB1000. The Eutech Instruments calibration standards are more stable than Formazin and have a shelf life of 1 year. If you use the stable Eutech Instruments calibration standards to calibrate the instrument, review the expiration date to ensure that the standards have not expired. NOTE: The CyberScan TB1000 must be re-calibrated after lamp replacement. 5.1 Indexing the Calibration Standard(s) The United States Environmental Protection Agency (US EPA) recommends that cuvettes used for instrument calibration or sample measurement be indexed. To comply with this recommendation, each Eutech Instruments calibration standard is supplied with an indexing ring and each CyberScan TB1000 is supplied with an indexing pin for quick and repeatable indexing of the calibration standard. The white indexing pin is installed on the collar ring around the optical well. 4 CyberScan TB1000 To index a calibration standard perform the following steps: 1. 2. 3. Slowly rotate the calibration standard one complete revolution (360°). While rotating the standard, observe the CyberScan TB1000 and locate the cuvette position with the lowest turbidity reading. With the calibration standard positioned at the location having the lowest turbidity reading, install the Indexing Ring over the black light shield on the standard so that the pointer of the Ring aligns with the Indexing Pin. 5.2 Calibration Procedure Even though it is possible to calibrate the CyberScan TB1000 using any sequence of the prescribed calibration standards, to achieve the stated accuracy you must use the procedure below to calibrate instrument. 1. 2. Press CAL key. Once this key is pushed the "Ident" block and the "Cal" block will illuminate on the display. The turbidity value displayed in the lower row of the display should read 1000 NTU. This is the first standard that must be used in calibration. Insert the 1000 NTU calibration standard into the sample well (see figure 3) by aligning the notch and the indexing pin (see section 5.1 if you have not already indexed the standard) and wait for the reading to stabilize. Press ENTER key when the standard is in position. After the enter key has been pressed, the instrument will calibrate on the 1000 NTU level (the "Store" block will flash) and the upper row of the display should display 1000 NTU. The lower row of the display now shows that the 10.0 NTU calibration standard should be placed in the sample well for continuing calibration sequence. Insert the indexed 10.0 NTU calibration standard into the sample well by aligning the notch and the indexing pin (see section 5.1 if you have not already indexed the standard) and wait for the reading to stabilize. Press ENTER key when the standard is in position. After the enter key has been pressed, the instrument will calibrate on the 10.0 NTU level (the "Store" block will flash) and the upper row of the display should display ...