USER GUIDE Oyster Meter pH, Conductivity, TDS, Salinity, and ORP (mV) Model 341350A Introduction Congratulations on your purchase of the Extech Oyster Series meter. This device measures pH, Conductivity, TDS, ORP and Salinity. These meters are intended for routine laboratory and field testing. Accurate measurements are provided in a battery operated, portable meter with a hinged display that can be adjusted to any viewing angle. This device is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit our website (www.extech.com) to check for the latest version of this User Guide, Product Updates, Product Registration, and Customer Support. Meter Description Front and Side panels 1. LCD display 2. Battery compartment 3. Power button 4. Up/Down arrow buttons 5. MODE/CAL button 6. UNIT/SET button 7. STORE/RECALL button 3 8. Connector, Conductivity probe 4 9. Connector, pH probe, ORP probe 5 1 2 10. Connector, Temperature probe 6 11. Connector, AC adaptor 7 8 9 10 11 Display 1. 10 Mode indicators 2. Primary display 1 3. Data Hold indicator 4. Probe Renew indicator 5. Auto Power Off indicator 6. Low battery indicator 7. Memory status indicators 2 3 4 5 6 8. Calibration status indicators 9. Temperature display 7 8 9 10. Unit indicators 2 341350A-en-US_V1.3 8/15 Operation Battery Installation/Replacement Open the battery cover by inserting a small coin into the latch slot and pressing downward. The cover will release in the direction of the arrow. Install the new battery and replace the cover. pH Measurements 1. Press the POWER button to turn the meter ON (the meter will cycle through a self‐check). 2. Press the MODE/CAL button until the PH icon switches on. 3. Press the UNIT/SET button to select ºC or ºF. 4. Connect the pH electrode to the side pH BNC connector. 5. Adjust the ▲▼buttons to match the temperature of the solution (or use the external temperature probe to do so). 6. If required, calibrate the electrode (see pH Calibration). 7. Place the electrode in the sample solution and read the pH value on the display. 8. When all measurements have been taken, unplug the electrode and rinse in distilled water; then shake and store it in the wetting cap with 4.0 M KCL or in a pH 4 buffer solution. Conductivity/TDS/Salt Measurements 1. Press the POWER button to turn the meter ON. 2. Press the MODE/CAL button until the COND, SALT or TDS icon is displayed. 3. Connect the conductivity electrode to the side conductivity connector. 4. If required, calibrate the electrode (see Conductivity Calibration). 5. Place the electrode in the sample solution and read the value on the display. 6. When finished, unplug the electrode and rinse in distilled water. ORP (mV) Measurements 1. Press the POWER button to turn the meter ON. 2. Press the MODE/CAL button until the ORP icon is displayed. 3. Connect the ORP electrode to the side ORP BNC connector. 4. Place the electrode in the sample solution and read the mV value on the display. 5. When all measurements have been taken, unplug the electrode and rinse in distilled water. 6. Store the probe tip in the wetting cap in a 4.0 M KCL or in a pH 4 buffer solution. 3 341350A-en-US_V1.3 8/15 Data Memory 25 readings can be stored to, and recalled from, the internal memory. Storing readings 1. With the reading on the display, momentarily press the STORE/RECALL button. The STORE and HOLD display icons will appear on the LCD and the reading will freeze. 2. Momentarily press the STORE/RECALL button again to confirm and to return to the normal operation mode. 3. Up to 25 readings can be stored in this way. Recalling Readings 1. Press and hold the STORE/RECALL button. The RECALL icon and the memory location number will appear, followed by the data stored in the displayed memory location. 2. Use the ▼ ▲buttons to scroll through the memory locations and to view the stored data. 3. Momentarily press the STORE/RECALL button to exit the Recall Readings mode. End will appear in the display; the meter will then return to the normal measurement mode. Clearing the memory With the meter on, press and hold the ▼ and ▲ buttons for 2 seconds. The CLr icon will appear on the display, indicating that the memory has been erased. Temperature Units Press the UNIT button to select ºF or ºC. Manual Temperature Compensation In the pH mode, the solution temperature can be measured and set by using the optional external temperature probe or, when the probe is not used, by adjusting the temperature display. Press the ▲▼buttons to set the temperature when the MTC icon is displayed. The Conductivity probe has a built‐in temperature sensor so manual temperature compensation does not apply for Conductivity measurements. Auto Power off (APO) The meter is equipped with an Automatic Power Off feature. The meter will power down after a 10‐minute period of inactivity. This feature can be disabled by pressing and holding the POWER button for 2 seconds (the APO display icon indicates that this feature is enabled). After disabling APO, the next time the meter is powered up APO will be re‐enabled. Reset to Default settings The meter can be reset to its factory default configuration: 1. With the meter OFF, press and hold the POWER and STORE/RECALL buttons simultaneously until dFLt rSt appears in the display. 2. Release the buttons and the meter will continue with a normal startup. 3. Default values include: Calibration values, Conductivity mode, ºC, MTC, APO and RENEW off 4 341350A-en-US_V1.3 8/15 pH Calibration (1, 2, or 3 points) A two point calibration with a buffer of 7 plus 4 or 10 (whichever is nearest to the expected sample value) is always recommended. A one point calibration (choose the value closest to the expected sample value) or a three point calibration is also valid. For best accuracy, always calibrate at the sample temperature. Frequency of calibration is dependent on how often the meter is used, the care of the electrode, and strength of the samples tested. Typically, it is recommended that calibration be performed once a day; or before each use if the meter is not used on a daily basis. 1. Connect the pH probe and place it into a pH7 buffer. 2. Press the POWER button to turn the meter on and press the MODE/CAL button until the PH icon appears. (Note: disable the Auto Power Off feature to avoid an automatic power off during calibration). 3. If the MTC icon appears next to the temperature display, press the ▼ or ▲ button to set the temperature of the pH buffer. If the optional temperature probe is used, insert the probe into the buffer solution. 4. Press and HOLD the MODE/CAL button until the display begins to flash ‘7.00’. The meter automatically recognizes the buffer and calibrates itself to that value. At the end of the calibration cycle, SA and End will briefly appear on the display and the meter will return to the normal operating mode. 5. When a calibration is performed, the calibration icons (pH10) (pH7) (pH4) will be cleared (calibration data is not erased) and will be replaced when a successful calibration is performed for each buffer within one power on cycle. These icons indicate what calibration levels were last performed. They do not indicate how recently the calibration was performed or if the calibrations are still valid. 6. Remove the electrode from the pH7 buffer, rinse in a rinse solution and insert it into the pH4 or pH10 buffer solution. 7. Repeat step 4 for the second calibration point and then the third point if desired. Note: If the output of the electrode falls outside predetermined limits, the meter will cancel the calibration, indicate End, and flash the RENEW icon. This typically happens when the electrode has aged and needs replacement. Note: To avoid cross contamination, always rinse the electrode in a rinse solution, like distilled water, when changing from one buffer or sample to the next buffer or sample. ORP Calibration The ORP electrode does not require calibration. However, you can test the ORP probe’s accuracy using an ORP standard. 5 341350A-en-US_V1.3 8/15 Conductivity (TDS & Salt) Calibration Conductivity accuracy verification should be performed on a periodic basis; once per month is the recommended cycle for normal use. If calibration is required, a conductivity standard solution must be obtained. The meter can be calibrated in any or all of the three ranges. Standardizing solutions of 84µS/cm, 1413µS/cm or 12.88mS/cm (12,880µS/cm) are used for the automatic calibration recognition procedure. No other calibration values are permitted. Calibration is always done in conductivity mode. Since salinity and TDS values are calculated from conductivity values, this procedure also calibrates the Salinity and TDS ranges. 1. 2. 3. 4. 5. Fill a sample cup with the standardizing solution. Turn the meter ON and insert the electrode into the solution. Tap or move the electrode in the sample to dislodge any air bubbles. Press and hold the MODE/CAL button (approximately 2 seconds) until the main display starts flashing. The meter will automatically recognize and calibrate to the standardizing solution. At the end of the calibration, the display will briefly indicate “SA”, “End” and then return to the measurement mode. Note: The “SA” will not appear if the calibration fails. The “range calibrated” alert will appear in the display for each range that is calibrated during that power on cycle. Low range, 84µS/cm Medium range, 1413µS/cm High range, 12.88mS/cm (12,880µS/cm) Note: The meter allows for a 1, 2 or 3 point calibration. If calibration is done for more than one point, the lowest value standard should be done first to obtain the best accuracy. Temperature (pH and Conductivity) Offset Calibration This procedure allows for error correction of the external temperature probe (pH) or the conductivity probe’s built‐in temperature sensor. 1. 2. 3. 4. 5. Switch to pH or Conductivity (Salt/TDS) mode. Place the temperature probe or conductivity cell in the sample and allow the temperature reading to stabilize. Press and hold the UNIT/SET button until the ºC or ºF icon begins flashing. Adjust the ▼ or ▲ buttons to set the display to indicate the known temperature of the sample. Momentarily press the UNIT/SET button to save the change and return to the measurement mode. 6 341350A-en-US_V1.3 8/15 pH Troubleshooting Chart Symptom Long response time or reading drift Cause Recommended Solution Soak in 4.07 M KCL @ 60oC for 30 minutes Clogged Junction Oil, paint, dyes, suspended solids on Rinse electrode alternately with sensor materials solvent then buffer 7.00 Dry Bulb Long term storage without wetting Soak electrode tip in wetting cap filled with 1ml 7.00 buffer for 24 to 48 hours Static Charge Wiping electrodes Rinse electrode in 7.0 buffer and blot. Do no wipe electrode. Same readings in Cracked or broken bulb different buffers and samples Erratic LCD display Replace electrode. Use bulb guard. Avoid plunging electrode to bottom of container and spinning bars. A wetting cap will protect bulb between measurements. Samples have low ionic strength For each 50 ml of sample add 1 drop (lacks salt); e.g. distilled, de‐ionized, (50uL) of SAT.KCL No alteration in pH boiled, lake water (high pressure) will occur by inert KCL. Notes on pH measurements and electrodes 1. The Electrode should be stored in its wetting cap until used. Use a pH 4 buffer solution or a 4.0 M KCL solution. 2. If bubbles are seen in the bulb area, hold the electrode by its cap and shake downwards until bubbles are removed. 3. To improve speed of response, vigorously stir the electrode in the sample, buffer, or rinse solution. 4. After exposure to a sample, buffer, or rinse solution, shake the electrode with a snap motion to remove residual drops of solution. 5. When possible, use part of the next sample/buffer to be measured as a rinse solution,. 6. Keep buffers and samples at the same temperature to avoid temperature effects. 7. pH readings stabilize faster in some solutions than others; allow time to stabilize. 8. Electrodes deteriorate over time. If accuracy falls to 10% the electrode should be cleaned. If no improvement is observed, replace the electrode. Notes on the Conductivity/TDS/Salt Cell 1. Cell Storage: On sheathed cells, replace the sheath over the cell when storing. For non‐ sheathed versions, soak the cell tip in de‐ionized water for storage. 2. Cell Cleaning: After each use, the cell tip should be rinsed with de‐ionized water. If solids build up inside the cell carefully remove with a cotton swab soaked in solvent taking care not to touch the metal parts of the inner cell. 7 341350A-en-US_V1.3 8/15 SPECIFICATIONS Ranges Resolution Accuracy pH 0.00 to 14.00pH 0.01pH ± 0.02pH Conductivity 0.0 to 200.0µS 200 to 2000µS 2.00 to 20.00mS 0.1µS 1µS ± 2% FS 0.0 to 134.0ppm 134 to 1340ppm 1.34 to 13.40ppt 0.1ppm 1ppm 0.01ppt (calculated from Conductivity) 0.0 to 100.0ppm 100 to 1000ppm 1.00 to 10.00ppt 0.1ppm 1ppm 0.01ppt (calculated from Conductivity) ORP ‐1500 to 1500mV 1mV ± 3mV Temperature 32 to 194ºF 0.0 to 90.0ºC 0.1º ≤ 99.9º 1º ≥ 100º ± 2ºF/1ºC (meter + probe) TDS Salinity 0.01mS Display 9999 count LCD MTC temperature range 32.0 to 194.0ºF (0.0 to 90.0ºC) pH calibration points 4.00, 7.00 and 10.00pH Conductivity calibration points 84.0µS, 1413µS, and 12.88mS TDS conversion ratio 0.67 (fixed) Salinity conversion ratio 0.5 (fixed) Auto Power OFF After 10 minutes of inactivity (can be disabled) Over range indication “OL” Operating Temperature 41ºF to 104ºF (5ºC to 40ºC) Storage Temperature ‐4ºF to 140ºF (‐20ºC to 60ºC) Operating Humidity Max 80% up to 87ºF (31ºC) decreasing linearly to 50% at 104ºF (40ºC) Storage Humidity <80% Operating Altitude 7000’ (2000m) maximum Power 9V alkaline battery or AC adapter Dimensions 4.7 x 3.8 x 1.8” (118 x 96 x 45mm) with meter closed Weight 12oz. (340g) 8 341350A-en-US_V1.3 8/15 Warranty FLIR Systems, Inc. warrants this Extech Instruments brand device to be free of defects in parts and workmanship for three years from date of shipment (a six month limited warranty applies to sensors and cables). If it should become necessary to return the instrument for service during or beyond the warranty period, contact the Customer Service Department for authorization. Visit the website www.extech.com for contact information. A Return Authorization (RA) number must be issued before any product is returned. The sender is responsible for shipping charges, freight, insurance and proper packaging to prevent damage in transit. This warranty does not apply to defects resulting from action of the user such as misuse, improper wiring, operation outside of specification, improper maintenance or repair, or unauthorized modification. FLIR Systems, Inc. specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct, indirect, incidental or consequential damages. FLIR’s total liability is limited to repair or replacement of the product. The warranty set forth above is inclusive and no other warranty, whether written or oral, is expressed or implied. Calibration, Repair, and Customer Care Services FLIR Systems, Inc. offers repair and calibration services for the Extech Instruments products we sell. NIST certification for most products is also provided. Call the Customer Service Department for information on calibration services available for this product. Annual calibrations should be performed to verify meter performance and accuracy. Technical support and general customer service is also provided, refer to the contact information provided below. Support Lines: U.S. (877) 439‐8324; International: +1 (603) 324‐7800 Technical Support: Option 3; E‐mail: [email protected] Repair & Returns: Option 4; E‐mail: [email protected] Product specifications are subject to change without notice Please visit our website for the most up‐to‐date information www.extech.com FLIR Commercial Systems, Inc., 9 Townsend West, Nashua, NH 03063 USA ISO 9001 Certified Copyright © 2013‐2015 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form www.extech.com 9 341350A-en-US_V1.3 8/15 Garantie FLIR Systems, Inc. garantit que cet appareil Extech Instruments est exempt de défauts matériaux et de fabrication pendant trois annees à partir de la date d’envoi (une garantie limitée de six mois s’applique aux capteurs et aux câbles). Si le renvoi de l’appareil pour réparation devient nécessaire durant ou après la période de garantie, contactez le service client pour autorisation. Pour obtenir les coordonnées, visitez le site Web suivant : www.extech.com. Un numéro d’autorisation de retour (AR) doit être délivré avant tout retour de produit. L’expéditeur prend à sa charge les frais d’expédition, le fret, l’assurance et l’emballage correct de l’appareil afin de prévenir toute détérioration durant le transport. Cette garantie ne s’applique pas aux dommages imputables à l’utilisateur, tels que l’usage impropre ou abusif, un mauvais câblage, une utilisation non conforme aux spécifications, un entretien ou une réparation incorrecte, ou toute modification non autorisée. FLIR Systems, Inc. déclinera spécifiquement toute garantie ou qualité marchande ou aptitude à l’emploi prévu, et ne sera en aucun cas tenu responsable pour tout dommage conséquent, direct, indirect ou accidentel. La responsabilité totale de FLIR est limitée à la réparation ou au remplacement du produit. La garantie définie ci‐dessus est inclusive et aucune autre garantie, écrite ou orale, n’est exprimée ou implicite. Calibrage, réparation et services après‐vente FLIR Systems, Inc. offre des services de calibrage et de réparation pour les produits Extech Instruments que nous commercialisons. Nous fournissons également une certification NIST pour la plupart des produits. Contactez notre service client pour toute information sur les services de calibrage disponibles pour ce produit. Un calibrage doit être effectué chaque année pour vérifier les performances et la précision du mètre. Nous offrons également une assistance technique et un service à la clientèle. Veuillez vous reporter aux coordonnées fournies ci‐dessous. Lignes d’assistance: États‐Unis (877) 439‐8324; international: +1 (603) 324‐7800 Service d’assistance technique : Option 3 ; E‐mail : [email protected] Réparations et retours : Option 4 ; E‐mail : [email protected] Les spécifications produit sont sujettes à modifications sans préavis. Pour les toutes dernières informations, veuillez visiter notre site Web. www.extech.com FLIR Commercial Systems, Inc., 9 Townsend West, Nashua, NH 03063 USA Certifié ISO 9001 Copyright © 2013‐2015 FLIR Systems, Inc. Tous droits réservés, y compris la reproduction partielle ou totale sous quelque forme que ce soit. www.extech.com 10 341350A-en-US_V1.3 8/15 Garantía FLIR Systems, Inc., garantiza este dispositivo marca Extech Instruments para estar libre de defectos en partes o mano de obra durante tres años a partir de la fecha de embarque (se aplica una garantía limitada de seis meses para cables y sensores). Si fuera necesario regresar el instrumento para servicio durante o después del periodo de garantía, llame al Departamento de Servicio a Clientes para obtener autorización. Visite www.extech.com para Información de contacto. Se debe expedir un número de Autorización de Devolución (AD) antes de regresar cualquier producto. El remitente es responsable de los gastos de embarque, flete, seguro y empaque apropiado para prevenir daños en tránsito. Esta garantía no se aplica a defectos resultantes de las acciones del usuario como el mal uso, alambrado equivocado, operación fuera de las especificaciones, mantenimiento o reparación inadecuada o modificación no autorizada. FLIR Systems, Inc., rechaza específicamente cualesquier garantías implícitas o factibilidad de comercialización o idoneidad para cualquier propósito determinado y no será responsable por cualesquier daños directos, indirectos, incidentales o consecuentes. La responsabilidad total de FLIR está limitada a la reparación o reemplazo del producto. La garantía precedente es inclusiva y no hay otra garantía ya sea escrita u oral, expresa o implícita. Servicios de calibración, reparación y atención a clientes FLIR Systems, Inc., ofrece servicios de reparación y calibración para los productos que vendemos de Extech Instruments. Además ofrecemos certificación NIST para la mayoría de los productos. Llame al Departamento de Servicio al Cliente para solicitar información de calibración para este producto. Para verificar el funcionamiento y precisión se debe realizar la calibración anual. Además se provee Soporte Técnico y servicios generales al cliente, consulte la información de contacto en seguida. Líneas de soporte: EE.UU. (877) 439‐8324; Internacional: +1 (603) 324‐7800 Soporte Técnico Opción 3; correo electrónico: [email protected] Reparación / Devoluciones: Opción 4; correo electrónico: [email protected] Las especificaciones del producto están sujetas a cambios sin aviso Por favor visite nuestra página en Internet para la información más actualizada www.extech.com FLIR Commercial Systems, Inc., 9 Townsend West, Nashua, NH 03063 USA Certificado ISO 9001 Copyright © 2013‐2015 FLIR Systems, Inc. Reservados todos los derechos, incluyendo el derecho de reproducción total o parcial en cualquier medio www.extech.com 11 341350A-en-US_V1.3 8/15