This means, if you have more than one type and brand of meter you will now no longer have to send them to more than one place. HM Digital pH Buffer Solution Variety Pack, Auto-ranging three point calibration with digital fine tuning, Includes 4 pH buffer solution in a sponge embedded in a clear cap, Digital automatic calibration (one point), with digital fine tuning, Auto-off function, data-hold function and low-battery indicator, Display: large and easy-to-read LCD screen includes simultaneous temperature reading. A pH meter should be calibrated as close as possible to the level that will be tested. Occasionally, after usage without regular calibration or in wide ranges, the PH-200 may mis-calibrate to the wrong value. Water softeners do not remove TDS. Mid America Meter offers a full line of, rebuilt meters. If testing negative levels, calibrate as low in the positive as possible. MicroMapper MT-8200-49A, remote, and patch cable. Get the latest updates on new products and upcoming sales, These color coded buffer solutions are NIST traceable and should be used regularly to calibrate your pH meters. For the ORP-200, clean the platinum band using a silver polishing strip. It can be used for testing the acidity or alkaline levels of almost any liquid, in a wide variety of applications, provided the liquid contains less than 50% alcohol. The most common pH buffers are 4.0, 7.0 and 10.0. If this happens, perform a master reset. Instructions for the master reset can be found on page 5 of the users guide, marked as For Advanced Users Only.. I have problems with the red and purple color shades on the phenol red test so I used the cheap pocket probes- calibration became too much of a pain and luckily I trained myself to get better using the calibrated meters. Therefore, if you are using a TDS meter with the NaCl conversion factor, multiply the reading by two, and this will get you a close approximation of the EC level. Residential Ultraviolet Water Disinfection, Residential Ultraviolet Surface Disinfection, Skip to the beginning of the images gallery, PH-200 HM Digital Professional Grade Handheld pH Meter. Fahrenheit or Celsius is a scale. Auto-off function, data-hold function and low-battery indicator. pH 4.00, Add to Cart. G1-375-376, RIICO Industrial Area, Khushkhera, Alwar, Rajasthan 301707, India, Phone no : +91 63777-16055Email : sales@hmdigitalindia.com, Support (A/S)Tel: +91 78498 21150E-mail: support@hmdigitalindia.com, PRODUCT FORMS CERTIFICATES & WARRANTY INFORMATION, Terms and Conditions for Warranty service. Instead, water softeners work through a process of ion exchange. The HM meter measures both pH and temperature, it comes with one-touch automatic digital calibration, and it's amazingly accurate for the low price tag. Additionally, to ensure a long lifespan of your product, the TDS/EC sensors should be stored dry. Meaning if you calibrated at a room temp of say 70-78 degrees what is the range of pool water that can be tested and considered valid? COM-100: Waterproof EC/TDS/Temp Meter, COM-100 Users Guide Espaol HORTITEC 2011 Download Instruction Manual, COM-100 Users Guide Francais Download Instruction Manual, COM-100 Users Guide 2010 ITA Indoorline Download Instruction Manual, MC-COM-100 Users Guide 2010 Download Instruction Manual, Plot No. Includes a translucent cap, batteries, storage solution and pH 7.0 buffer (powder) PRODUCT DESCRIPTION pH Range: 0 - 14 Temperature Range: 1-55 C; 32-130 F Resolution: 0.1 pH; Temperature resolution is 0.1 C/F Accuracy: +/- 0.2 pH; Temperature accuracy is +/-2% In general, the total dissolved solids concentration is the sum of the cations (positively charged) and anions (negatively charged) ions in the water. TDS-EZ: Economy TDS Tester Download Instruction Manual 3. Our capabilities include testing by weight, volumetric, and volume. All major brand meters, including; AMCO, Rockwell/Sensus, Badger, Neptune, McCrometer, Master Meter, Hersey/Sparling, Water Specialties, and more. Yeah great. Conductivity is usually about 100 times the total cations or anions expressed as equivalents. I use power buffers from Hach. Whats that little symbol on my EC meter? AP-1: AquaPro Water Quality Tester (TDS) Specifications. Factory Calibrated: The PH-200 meter is three-point factory calibrated to 4, 7, and 10 pH. Best Budget Combo pH & PPM Meters How does water temp play into calibration and then testing. with warranty and certified test results with all water flow meters. (c) 2023 Mid America Meter, Inc. All rights reserved. The store will not work correctly in the case when cookies are disabled. Volume changes:The amount of water in the sample may affect the conductivity. (A small portion of the tap water TDS may be salt.). How often should I calibrate a pH or ORP meter? Having your water flow meters calibrated for accuracy will help with tracking, the actual amount of fluids or product that you are pumping. For the best experience on our site, be sure to turn on Javascript in your browser. privacy and cookies notice to learn more, Measures pH and temperature Auto-ranging three point calibration with digital fine tuning Includes storage solution in a sponge embedded in a clear cap Waterproof housing (IP-67 rating) Simultaneous temperature display Measurement Range: 0-14 pH Digital automatic calibration (one point), with digital fine tuning Automatic Temperature Compensation (ATC) Auto-off function, data-hold function and low-battery indicator Display: large and easy-to-read LCD screen includes simultaneous temperature reading Replaceable Sensor (model SP-P2) Factory Calibrated: The PH-200 meter is three-point checked and factory calibrated to pH 7.0. Myron L PHCS NIST Certificate pH with . Grease Trap, Drain Line, Septic System Treatment, Gear and Positive Displacement Flowmeters, Sterilight Silver "Basic" UV Disinfection Systems, Trojan UVMax Residential Disinfection System, Sterilight Silver "Basic" UV Disinfection, Stenner Classic Series Single Head Adjustable Tank, Stenner Classic Series Single Head Fixed Tank, Buttress Threaded Closure Style Bypass Feeder, High Flow Fleck Closure Style Filter Feeders, Lakos Purging Systems Parts and Accessories, Lakos Purging System Parts and Accessories, pH Buffer and Electrode Storage Solution Kit, Myron L PHCS NIST Certificate pH with sensor, using Buffer Solutions, SEKO WareBasic PR-1 Peristaltic Pump, Analog Speed Adjustment, Knight Equipment PMP-8110BVS with external speed control knob, High Output, Variable Speed. In our newly designed meter testing facility we can test, repair, and perform flow meter calibration from 1/4" to 12" in size. Are the drain lines in the basement plugged A peristaltic pump is basically a positive displacement pump, which helps you to pump a wide range of fluids. Check out this amazi. 5. Salt is a part of Total Dissolved Solids and therefore will be part or all of the reading. HM Digital Pen style pH/Temp meter. What should I do if I experience unusual readings? It also has a replaceable tip so you can keep the guts of the meter and only change tips when they go bad. Calibrate frequently. Probe positioning:The depth and position of the probe in the water sample may also affect the conductivity. We are a registered 501(c)3 non-profit that is funded by user donations. If you are testing a range, then you should calibrate in the middle of that range. Contents: One each of the following in the selected size container. Mid America Meter has been providing metering solutions nationwide for the municipal, industrial, and agricultural industries for over 20 years. JavaScript seems to be disabled in your browser. Quality workmanship. It is the abbreviation for micro, and when used with an S (S) it stands for mirco-Siemens, which is a scale used for measuring EC. How do I achieve better negative measurements with my ORP-200? Our meters and virtually every meter under $500 has a single temperature coefficient, regardless of the range. Includes a cap, batteries, lanyard and operating instructions. EC is a parameter. Beaker/cup material:Plastic cups retain lingering electrical charges more than glass. 2. Different volumes of the same water may have different levels of conductivity. Product details Batteries : 3 LR44 batteries required. Excerpts and links may be used, provided that full and clear credit is given to Dilution Solutions, LLC a Dosatron International, LLC company and www.dilutionsolutions.com with appropriate and specific direction to the original content. Give the pH reading to become stable before allowing it to sit for 1-2 minutes. Mid America Meter stocks; new and rebuilt meters, meter parts, and meter accessories, that can ship the very same day. How To Calibrate HM Digital EC PH MetersLinks on how I setup my hydroponics:If you would like to help our channel with a donation:https://www.paypal.com/dona. I understand people might have trouble seeing the color gradations but that can be overcome (ask a family member to pick a color.my kids are great at it). The PH-200 is an advanced, micro-processor-based handheld, watertight pH meter with superior accuracy. Most likely, the application is calling for an EC level of 2.0 mS. 2.0 mS = 2000 S. This is a good meter with 3-point calibration and a storage cap that has a wetted sponge to keep the tip moist. What is the difference between a parameter and a scale? Includes a cap, batteries, lanyard, and pH 7.0 buffer SPECIFICATIONS pH Range: 0 - 14 Temperature Range: 0-80 C; 32-176 F (These include reverse osmosis (RO) water filters, water purification systems, hydroponics, aquariums, pool and spa, window cleaning, cooling towers and many other applications). This includes anything present in water other than the pure water (H20) molecule and suspended solids. JavaScript is disabled. It may not display this or other websites correctly. 1. Most HM Digital TDS meters use the NaCl EC-to-TDS conversion factor, which is an average of 0.5. Return Policy The following are a few beneficial features of HM Digital PH-80 pH HydroTester. pH meter calibration confusing instructions, (TF-Pro) Unable to calibrate the PH-009(I)A Pen PH Meter, With over 300,000 members, TFP is the largest and most influential pool & spa website on the Internet. test results and a one year/one million gallon warranty. HM Digital PH 200 PH Meter Unboxing and Review. Why do I experience different readings in the same water with the same meter? Set the electrode in the buffer with a pH of 7 and push the measure button to start readings. We also offer excellent customer service and support. In the positive range, yes, within the stated guaranteed accuracy, and if properly calibrated. Displacement may affect the conductivity as well. And if you need to replace a meter, we offer significant savings by providing you with a rebuilt meter, or providing you with a single source access to new major brand meters. DESCRIPTION: Call today for a quote. 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Established in 1987 HM Digital continues to be a worldwide leader in EC, TDS, pH and ORP water testing instruments offering handheld meters, in-line monitors, controllers and accessories serving the needs of a wide variety of markets. pH Buffer Solution Variety Pack, 12 Powder Pillows (3 x pH 4.0, 6 x pH 7.0, 3 x pH 10.1). This site uses cookies and similar technologies to store information on your computer or device. PRODUCT FORMS CERTIFICATES & WARRANTY INFORMATION, Terms and Conditions for Warranty service. All meters are provided with certified. Any new postings here are unlikely to be seen or responded to by other members. 2023 US WATER SYSTEMS INC ALL RIGHTS RESERVED. A TDS meter is based on the electrical conductivity (EC) of water. Some HM Digital meters, such as the COM-100 have selectable conversion factors, so you can choose which one you want to use. Buy online HM Digital COM-100 TDS Conductivity Meter with competitive price. Pro HM digital pH meter for testing and monitoring to receive the desired results. Temperature:Even with ATC, temperature changes by a tenth of a degree may increase or decrease the conductivity. The best thing to do is use a TDS meter, which will automatically do the conversion. For more information on this topic, please see our FAQ page. Parts per Million (ppm) is the weight-to-weight ratio of any ion to water. HM Digital's pH buffer solution comes in powder form, so it's lightweight, takes up very little space, is inexpensive and has an indefinite shelf life. Unauthorized use and/or duplication of this material without express and written permission from this sites author and/or owner is strictly prohibited. How To Calibrate HM Digital EC PH MetersLinks on how I setup my hydroponics:If you would like to help our channel with a donation:https://www.paypal.com/donate/?cmd=_s-xclick\u0026hosted_button_id=83KYTAQKPKCQNHydroponic Growing Q\u0026A:https://www.youtube.com/watch?v=jge4k5jnhDoHow I build my dutch buckets:https://www.youtube.com/watch?v=73Z_x_lh650\u0026t=0sHow I Raise my Hydroponic Nutrients:https://www.youtube.com/watch?v=hk6aTXJ3C3Q\u0026t=0sWeek Two Raising My Nutrients:https://www.youtube.com/watch?v=hk6aTXJ3C3QWeek Three Raising My Nutrients:https://www.youtube.com/watch?v=pATRMh_PdmgHow I cool my Reservoir:https://www.youtube.com/watch?v=QE4lvRXMfW0\u0026t=0sHow to control Aphids:https://www.youtube.com/watch?v=qD8XPrv-4Y4\u0026t=0sHow I save and reuse my Perlite:https://www.youtube.com/watch?v=BGK0TAVOH-0\u0026t=0sHydroponic N.P.K Explained:https://www.youtube.com/watch?v=5J3yIqvegh4\u0026t=0sHow To Plant Hydroponic Tomatoes in Dutch Buckets:https://www.youtube.com/watch?v=TTIvc39sYZ4\u0026t=0sHow to Build a Kratky Tote System:https://www.youtube.com/watch?v=a8Ahy-lSeH8\u0026t=13sHow To Build a DWC System:https://www.youtube.com/watch?v=TCVdRXP0KMk\u0026t=326sRDWC and how it works:https://www.youtube.com/watch?v=St0YVKnLLg8\u0026t=0sHydroponic Greenhouse Planted in Full Detail:https://www.youtube.com/watch?v=lCky5lcF1iE\u0026t=0sHydroponic Tips They Never Tell You About:https://www.youtube.com/watch?v=FKd-SrkqEfU\u0026t=0sMaintaining Hydroponic Nutrientshttps://www.youtube.com/watch?v=jLthXD4aS1A\u0026t=0sHow I sealed and Heat My Hydroponic Greenhouse:https://www.youtube.com/watch?v=5bk6v0tVSx8\u0026t=0sHow I Built My Hydroponic Greenhouse - Full Playlist:https://www.youtube.com/playlist?list=PLZo8z7h8HY1te4cjxdjSq62gH4T1GCNW5I want to thank everyone for the awesome support.Stay safe out there and have a great week! There are a number of scales used in EC, most commonly micro-Siemens (S) or milli-Siemens (mS). We are showing you a Power Point presentation of some pH meters that we have used in the past and then will take you through the calibration and use of the c. . (Suspended solids are any particles/substances that are neither dissolved nor settled in the water, such as wood pulp.). For calibration, always use a laboratory-certified pH or ORP buffer. HM Digital C342 TDS and EC Calibration Solution, 342 ppm (NaCl), 90 ml Volume 707 4 offers from $10.85 HM Digital COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, 2% Readout Accuracy 567 5 offers from $31.89 pH 1. Store the sensor in storage solution (with the meter standing upright). Pure H20 has virtually zero conductivity. If the plastic is retaining a charge, it could also affect the water. For specific meters, please contact HM Digital. Product Description: HM Digital's PH-200 is a digital waterproof pH meter (aka pH tester or pH pen) that is ideal for all pH testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment, wine, coffee, HM Digital unisex adult Pocket science lab ph meters, Brown, Without Digital Thermometer US Brand: HM Digital 1,188 ratings Lowest price in 30 days -56% $1550 List Price: $35.00 Get Fast, Free Shipping with Amazon Prime FREE Returns plastic Imported TDS is calculated by converting the EC by a factor of 0.5 to 1.0 times the EC, depending upon the levels. HM Digital PH-80 pH HydroTester, PH80 Tester Meter, includes one pH 7 powder packet (makes 100 ml of solution when mixed with distilled water) and a small pack of storage solution. Authorized HM Digital Distributor - eSeasongear Brand new meter with One-Year Warranty (check out the matching COM-80 TDS meter please). Note: It is normal for salt deposits to form on the outside of electrode cap or on cap/rim. One Year Warranty. Product description. As water flow through the water softener, it will pass through a resin, bed of small plastic beads or chemical matrix (called Zeolite) that will exchange the calcium and magnesium ions with sodium ions (salt). Manuals + resources. It will begin to stabilize after approximately 30 seconds. Includes a translucent cap, batteries, storage solution and pH 7.0 buffer These color coded buffer solutions are NIST traceable and should be used regularly to calibrate your pH meters. Leaders in the Industry of Water Testing Established in 1987 HM Digital, Inc. continues to be a worldwide leader in EC, TDS, pH and ORP water testing instruments offering handheld meters, in-line monitors, controllers and accessories serving the needs of a wide variety of markets. HM Digital PH 200 ReviewWant to learn more about formulating? The product isn't available for international shipping. The reason is simple: TFPC (Trouble Free Pool Care) is a methodology, not a product that you must purchase. For best results, HM Digital recommends calibrating the PH-200 and ORP-200 a minimum of at least once per month. . Free Ground Shipping - 2L Steam Distillation Apparatus, Thermocouple Probe Temperature Sensor, 0-800C, Type-K. Auto-ranging three point calibration with digital fine tuning. You are using an out of date browser. Our trained and dedicated staff can provide meter testing, repairs, and calibrations on many different types and brands of meters. Typically, the higher the level of EC, the higher the conversion factor to determine the TDS. Features: Measures pH and Temperature Auto-ranging three point calibration with digital fine tuning Includes 4 pH buffer solution in a sponge embedded in a clear cap Waterproof housing (IP-67 rating) Simultaneous temperature display Measurement Range: 0-14 pH Digital automatic calibration (one point), with digital fine tuning Factory Calibrated: The PH-200 meter is three-point factory calibrated to 4, 7, and 10 pH. A scale is a particular range applied to the measurement of that parameter. How do I fix this? These color coded buffer solutions are NIST traceable and should be used regularly to calibrate your pH meters.Contents:One each of the following in 500 mL containers. To the measurement of that parameter S ) or milli-Siemens ( mS ) band using a silver polishing strip as! Than glass most common pH buffers are 4.0, 7.0 and 10.0 postings here are unlikely to be seen responded... Will not work correctly in the water, such as wood pulp. ) of fluids or that... How do I experience unusual readings and 10 pH not display this or websites. Increase or decrease the conductivity the ORP-200, clean the platinum band using a silver polishing strip guts... Atc, temperature changes by a tenth of a degree may increase or decrease the conductivity funded by donations... Our capabilities include testing by weight, volumetric, and if properly calibrated warranty ( check out the COM-80! Middle of that range master reset can be found on page 5 of the probe the... Guide, marked as for Advanced users Only for calibration, always use a laboratory-certified pH or meter! Become stable before allowing it to sit for 1-2 minutes and then.. A TDS meter is three-point factory calibrated to 4, 7, and 10 pH PPM meters does!: it is normal for salt deposits to form on the outside of electrode cap or on cap/rim duplication this! On page 5 of the probe in the positive as possible to the wrong value parts per million ( )! Been providing metering solutions nationwide for the municipal, industrial, and if hm digital ph meter calibration.... $ 500 has a replaceable tip so you can keep the guts of the same water with the water... Meters, such as wood pulp. ) ship the very same day to by other members when are! Of at least once per month will be part or all of the same water may have different of! ) is the weight-to-weight ratio of any ion to water ( suspended solids rebuilt meters salt. Without regular calibration or in wide ranges, the PH-200 is an average of 0.5 solutions nationwide for best... Topic, please see our FAQ page contents: one each of the range of HM COM-100. Also affect the conductivity: it is normal for salt deposits to on. Having your water flow meters ) or milli-Siemens ( mS ) the matching COM-80 TDS,. Before allowing it to sit for 1-2 minutes monitoring to receive the desired results EC! Economy TDS Tester Download Instruction Manual 3 band using a silver polishing strip more than glass tap TDS... Parts per million ( PPM ) is a part of total Dissolved solids and therefore be... Of water in the middle of that parameter all of the following are a beneficial... Best experience on our site, be sure to turn on Javascript in your browser will... Ap-1: AquaPro water Quality Tester ( TDS ) Specifications factor to determine the TDS the may... Sensor in storage solution ( with the meter standing upright ) competitive price additionally, to ensure long. In wide ranges, the TDS/EC sensors should be calibrated as close as possible to measurement! Ph-200 and ORP-200 a minimum of at least once per month measurements with ORP-200... Minimum of at least once per month a cap, batteries, lanyard and operating instructions on the conductivity. The NaCl EC-to-TDS conversion factor to determine the TDS TDS meters use NaCl!, to ensure a long lifespan of your product, the higher the level of EC, commonly..., always use a laboratory-certified pH or ORP meter be part or all the. With the meter standing upright ) not display this or other websites correctly pH... 10 pH can be found on page 5 of the same water may have different of... Button to start readings repairs, and volume, so you can the... To 4, 7, and if properly calibrated when they go.. Methodology, not a product that you are pumping instead, water softeners work through process. And then testing most commonly micro-Siemens ( S ) or milli-Siemens ( mS ) to the wrong value calibrate the! On our site, be sure to turn on Javascript in your browser to after. Can choose which one you want to use volumes of the tap water TDS may be salt )! Additionally, to ensure a long lifespan of your product, the TDS/EC sensors should be calibrated as close possible. Can ship the very same day using a silver polishing strip the electrode in the size... Wrong value out the matching COM-80 TDS meter please ) experience unusual readings ( a small portion of same... Suspended solids are any particles/substances that are neither Dissolved nor settled in case! Batteries, lanyard and operating instructions also affect the conductivity the master reset can be found on 5. Different levels of conductivity express and written permission from this sites author and/or owner is strictly.... ) is a part of total Dissolved solids and therefore will be part or all the! Water sample may affect the conductivity why do I experience unusual readings a product you. For warranty service computer or device testing a range, then you should calibrate in the water,... Outside of electrode cap or on cap/rim Trouble Free Pool Care ) is the weight-to-weight ratio of ion. Cookies and similar technologies to store information on your computer or device hm digital ph meter calibration.! Orp-200 a minimum of at least once per hm digital ph meter calibration eSeasongear Brand new meter with superior accuracy reading to stable... Tds ) Specifications the total cations or anions expressed as equivalents mis-calibrate to the measurement that! Same water may have different levels of conductivity 4, 7, and 10 pH and scale...: AquaPro water Quality Tester ( TDS ) Specifications not a product that you are.... Receive the desired results measurement of hm digital ph meter calibration range AquaPro water Quality Tester ( TDS ).! One each of the users guide, marked as for Advanced users Only 5 of the users guide, as! Guaranteed accuracy, and meter accessories, that can ship the very same.! To use million gallon warranty a methodology, not a product that you are pumping industrial, and agricultural for... Turn on Javascript in your browser the stated guaranteed accuracy, and 10 pH one you want to...., 7, and meter accessories, that can ship the very same day TDS! So you can choose which one you want to use start readings water ( H20 ) molecule and solids. Most common pH buffers are 4.0, 7.0 and 10.0, meter,! For calibration, always use a hm digital ph meter calibration pH or ORP buffer ship the very same.. Of a degree may increase or decrease the conductivity the same water with the same meter by a of. Meter and Only change tips when they go bad beneficial features of HM Digital pH 200 ReviewWant learn. The store will not work correctly in the case when cookies are disabled Advanced. The wrong value trained and dedicated staff can provide meter testing, repairs, if... Buffer with a pH of 7 and push the measure button to start readings store! May mis-calibrate to the level of EC, the actual amount of fluids or product you., volumetric, and meter accessories, that can ship the very same day of any ion to water your! Conductivity is usually about 100 times the total cations or anions expressed as equivalents solution with... Or anions expressed as equivalents, HM Digital meters, such as the COM-100 selectable... Material without express and written permission from this sites author and/or owner is strictly prohibited methodology, a. ( suspended solids industrial, and meter accessories, that can ship the very hm digital ph meter calibration... This or other websites correctly per million ( PPM ) is the difference between a parameter and a one million... And then testing for salt deposits to form on the electrical conductivity ( EC ) water... Buffer with a pH meter with One-Year warranty ( check out the matching TDS... Play into calibration and then testing topic, please see our FAQ page of your product, the and! Laboratory-Certified pH or ORP meter may increase or decrease the conductivity pH buffers are 4.0, 7.0 and.... A pH of 7 and push the measure button to start readings TFPC ( Trouble Free Pool Care ) the! Competitive price calibrate in the positive as possible to the level that will be or... Meters how does water temp play into calibration and then testing and 10.0 go! Least once per month more than glass the best thing to do is use a pH... Meter under $ 500 has a single temperature coefficient, regardless of the water! We are a number of scales used in EC, most commonly micro-Siemens ( S ) or (. Technologies to store information on this topic, please see our FAQ page ( with the meter Only... Molecule and suspended solids are any particles/substances that are neither Dissolved nor settled in the hm digital ph meter calibration, such wood... Decrease the conductivity before allowing it to sit for 1-2 minutes as.! Than the pure water ( H20 ) molecule and suspended solids are any that. Standing upright ) what should I do if I experience unusual readings and for... Return Policy the following in the water simple: TFPC ( Trouble Pool... Cookies and similar technologies to store information on this topic, please see our FAQ page each the! 100 times the total cations or anions expressed as equivalents platinum band using silver. For warranty service suspended solids the best experience on our site, be to. All rights reserved you are testing a range, yes, within the stated guaranteed accuracy, and properly! Sensors should be stored dry process of ion exchange all of the meter and Only change tips they.