DOC022.52.00641JUN04 PORTABLE TURBIDIMETER Model 2100P Instrument manual © Hach Company, 2004. All rights reserved.
http://www.hach.
TABLE OF CONTENTS CERTIFICATION .................................................................................................... 5 SAFETY PRECAUTIONS ...................................................................................... 8 SPECIFICATIONS .................................................................................................. 9 OPERATION.......................................................................................... 11 Section 1 Description............................
Table of contents, continued Section 5 TROUBLE SHOOTING .......................................................................30 5.1 Instrument Diagnostics.......................................................................................30 5.1.1 Display Test ................................................................................................30 5.2 Error Messages...................................................................................................30 5.2.
CERTIFICATION Hach Company certifies this instrument was tested thoroughly, inspected and found to meet its published specifications when it was shipped from the factory.
Certification, continued FCC Part 15, Class “A” Limits: Supporting test records by Amador Corp. (now TUV Product Services), certified compliance by Hach Company. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Certification, continued Page 7 4650098 cert.
SAFETY PRECAUTIONS Please read this entire manual before unpacking, setting up, or operating this instrument. Pay particular attention to all danger and caution statements. Failure to do so could result in serious injury to the operator or damage to the equipment. To ensure the protection provided by this equipment is not impaired, do not use or install this equipment in any manner other than that which is specified in this manual.
SPECIFICATIONS Specifications are subject to change without notice. Operating specifications applicable at 25 °C unless noted. Program software copyrighted by Hach Company, 1991. Measurement Method: Ratio Nephelometric signal (90°) scatter light ratio to transmitted light Range: 0–1000 NTU (=FNU) with automatic decimal point placement or manual range selection of 0–9.99, 0–99.9 and 0–1000 NTU (=FNU) Accuracy: ± 2% of reading plus stray light from 0–1000 NTU Resolution: 0.
SPECIFICATIONS, continued Storage Temperature: –40 to 60 °C (instrument only) Operating Temperature: 0 to 50 °C (instrument only) Operating Humidity Range: 0 to 90% RH noncondensing at 30 °C; 0 to 80% RH noncondensing at 40 °C; 0 to 70% RH noncondensing at 50 °C Power Requirements: Four AA Alkaline cells or optional battery eliminator Battery Life: Typically 300 tests with signal average mode off; 180 tests with signal average mode on Battery Eliminator (optional): For 120 V eliminator: CSA and UL approved
OPERATION DANGER Handling chemical samples, standards, and reagents can be dangerous. Review the necessary Material Safety Data Sheets and become familiar with all safety procedures before handling any chemicals. DANGER La manipulation des échantillons chimiques, étalons et réactifs peut être dangereuse. Lire les Fiches de Données de Sécurité des Produits (FDSP) et se familiariser avec toutes les procédures de sécurité avant de manipuler tous les produits chimiques.
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Section 1 Description 1.1 General Description The Hach Model 2100P Portable Turbidimeter (Figure 1) measures turbidity from 0.01 to 1000 NTU (=FNU). The instrument operates on four AA alkaline batteries or with an optional battery eliminator. Rechargeable nickel-cadmium cells may be used, but cannot be recharged in the instrument. The carrying case holds teh instrument, all standard accessories, and the optional battery eliminator.
Section 1, continued calculates the ratio of the signals from the 90° and transmitted light detector. This ratio technique corrects for interferences from color and/or light absorbing materials (such as activated carbon) and compensates for fluctuations in lamp intensity, providing long-term calibration stability. The optical design also minimizes stray light, increasing measurement accuracy. Figure 2 Ratio Optical System 90° Detector Transmitted Light Detector Lamp Lens Sample Cell 1.
Section 1, continued Figure 3 Battery Installation 1.4.2 Using the Battery Eliminator and Rechargeable Batteries Plug the eliminator jack into the connector on the turbidimeter side. The optional battery eliminator may be used with or without the batteries installed. The eliminator will not charge batteries. Rechargeable batteries may be used in the instrument, but must be removed for recharging. See HOW TO ORDER on page 34 for ordering information.
Section 1, continued Page 16 Preparation for Use 4650098 intro.
Section 2 OPERATION 2.1 Operational Controls and Indicators 2100P TURBIDIMETER DIAG CAL? NTU AUTO RNG SIG AVG EDIT MODE CAL DIAG SIGNAL AVERAGE POWER RANGE Key I O READ CAL SIGNAL AVERAGE DIAG 4650098 operation.fm READ Description Power key turns instrument on and off. If no keys are pressed for 5.5 minutes, the instrument turns off automatically. Performs a measurement. To conserve battery power, the lamp turns on only when READ is pressed.
Section 2, continued Key Description Scrolls between Auto Range, Manual Range, 0.00–9.99 NTU range, 10–99.9 NTU range, and 100–1000 NTU range. The range selection cannot be changed when a reading or calibration is in progress. When the meter is turned on it defaults to the last used range mode and measurement range. Key Description DIAG Turns on after DIAG is pressed. A number displayed under the DIAG icon (1–9) indicates which diagnostic function is active.
Section 2, continued during measurement, the initial value is displayed in 12 seconds and is updated every 1.2 seconds as long as the READ key is held. When the instrument is turned on, the instrument defaults to the signal averaging mode which was used during the last measurement. 2.3 Calibration Calibration of the 2100P Turbidimeter is based on formazin, the primary standard for turbidity. The electronic and optical design provide long-term stability and minimize the need for frequent calibration.
Section 2, continued • Store away from direct sunlight. Store vials in their respective kit or shipping box with the cover in place. 2.3.1.2 Preparing Bulk StablCal Stabilized Standards Bulk standards that have been sitting undisturbed for longer than a month must be shaken to break the condensed suspension. Start at step 1 for these standards. If the standards are used on at least a weekly interval, start at step 3. Note: When using <0.1-NTU StablCal Standards, do not shake or invert. 1.
Section 2, continued 2.3.2 Correcting for Turbidity of Dilution Water The 2100P Turbidimeter automatically compensates for turbidity contributed by dilution water when calculating the true value of the lowest formazin standard. Use high quality distilled or deionized water less than 0.5 NTU (=FNU). The instrument will display “E 1” after calibration if the dilution water turbidity is greater than 0.5 NTU. In this case, prepare the water as directed below.
Section 2, continued vious calibration may not be restored. Either recalibrate or use the calibration as is. • To review a calibration, press CAL and then × to view the calibration standard values. As long as READ is never pressed and CAL is not flashing, the calibration will not be updated. Press CAL again to return to the measurement mode. Note: For accuracy, use the same sample cell or four matched sample cells for all measurements during calibration.
Section 2, continued 7. The display will show “S1” (with the 1 flashing) and 20 NTU or the value of the S1 standard for the previous calibration. If the value is incorrect, edit using the arrow keys. 8. Fill a clean sample cell to the line with well mixed 20 NTU StablCal Standard or 20 NTU formazin standard. Insert the sample cell into the cell compartment by aligning the orientation mark on the cell with the mark on the front of the cell compartment. Close the lid. 9. Press READ.
Section 2, continued 17. Press READ. The instrument will count from 60 to 0 (67 to 0 if signal average is on). The display will increment back to the S0 display. Remove the sample cell from the cell compartment. 18. Press CAL to accept the calibration. The instrument will return to measurement mode automatically. Note: If calibration errors occurred during calibration, error messages will appear after CAL is pressed. Note: The standards must have a difference of at least 60 NTU.
Section 3 TURBIDITY MEASURE 3.1 Turbidity Measurement Measurements may be made with the signal average mode on or off and in manual or automatic range selection mode. With signal average mode off, the final value is displayed after approximately 12 seconds. Accurate turbidity measurement depends on good measurement technique by the analyst, such as using clean sample cells in good condition and removing air bubbles (degassing). 3.1.1 Turbidity Measurement Procedure 1. Thoroughly clean 2. Collect a 3.
Section 3, continued I O 5. Wipe off the excess 6. Press: I/O. so that only a thin coat of oil is left. Excess oil may retain dirt and contaminate the instrument cell compartment. The cell should appear nearly dry with little or no visible oil. 7. Insert the sample 8. Press: RANGE. Select cell in the instrument cell compartment so the diamond or orientation mark aligns with the raised orientation mark in front of the cell compartment. Close the lid. mannual or automatic range mode.
MAINTENANCE Some of the following manual sections contain information in the form of warnings, cautions and notes that require special attention. Read and follow these instructions carefully to avoid personal injury and damage to the instrument. Only personnel qualified to do so, should conduct the maintenance tasks described in this portion of the manual.
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Section 4 MAINTENANCE 4.1 Lamp Replacement The procedure below explains lamp installation and electrical connections. Use a small screwdriver to remove and install the lamp leads in the terminal block. The instrument requires calibration after lamp replacement. 1. Orient the instrument so it is upside down and the top faces away from you. Remove the battery cover and at least one battery. 2. Remove the lamp assembly by grasping the tab on the left side of the assembly and remove the old lamp leads. 3.
Section 5 TROUBLE SHOOTING 5.1 Instrument Diagnostics 5.1.1 Display Test Pressing and holding the I/O key turns on all the display icons and elements so you can determine if all the elements and icons are functioning. The display test sequence will cycle as long as the key is held down. 5.2 Error Messages Error messages indicate sample interferences and/or instrument malfunction. 5.2.
Section 5, continued Message Probable Cause Corrective Action E1 Dilution water is ≥ 0,5 NTU. E2 Two standards have the same value or their difference is less than 60 NTU. Start calibration over with better quality dilution water or use a membrane filter to filter the water before use. Recheck preparation of standards and repeat calibration. Not all standards were read during the calibration. E3 Standard 1 is too low (<10 NTU). Low light error. Re-read measurement.
Replacement Parts & Accessories REPLACEMENT PARTS Description Cat. No. AA Batteries, 4/pkg .........................................................................................................................1938004 Battery Door ....................................................................................................................................4600500 Carrying Case .............................................................................................................................
, continued StablCal® Calibration Set for 2100P Turbidimeter <0.1, 20, 100, 800 NTU (=FNU), 500 mL each ..............................................................................2659400 <0.1, 20, 100, 800 NTU (=FNU), 100 mL each ..............................................................................2659410 <0.1, 20, 100, 800 NTU (=FNU), sealed vials.................................................................................2659405 <0.
HOW TO ORDER By Telephone: By Mail: 6:30 a.m. to 5:00 p.m. MST Monday through Friday (800) 227-HACH (800-227-4224) By FAX: (970) 669-2932 Hach Company P.O. Box 389 Loveland, CO 80539-0389 U.S.A. Ordering information by E-mail: orders@hach.
REPAIR SERVICE Authorization must be obtained from Hach Company before sending any items for repair. Please contact the HACH Service Center serving your location. Dr. Bruno Lange GmbH & Co KG Willstätterstr. 11 D-40549 Düsseldorf Germany Telefon: +49/(0)211.52.88.0 Fax: +49/(0)211.52.88.231 info@hach-lange.de www.hach-lange.com HACH LANGE LTD Lennox Road Basingstoke Hampshire, RG22 4AP Tel: +44(0) 12 56 33 34 03 Fax: +44(0) 12 56 33 07 24 info@hach-lange.co.uk www.hach-lange.com 4650098 end.
WARRANTY Hach Company warrants this product to the original purchaser against any defects that are due to faulty material or workmanship for a period of one year from date of shipment. In the event that a defect is discovered during the warranty period, Hach Company agrees that, at its option, it will repair or replace the defective product or refund the purchase price, excluding original shipping and handling charges.
, continued This warranty contains the sole express warranty made by Hach Company in connection with its products. All implied warranties, including without limitation, the warranties of merchantability and fitness for a particular purpose, are expressly disclaimed. Some states within the United States do not allow the disclaimer of implied warranties and if this is true in your state the above limitation may not apply to you.
