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Hypocalcemia?is one of the most common disorders affecting dairy cows at the onset of lactation. It is characterized by decrease in blood calcium below normal level. Stricken cows may have it with symptoms (clinical hypocalcemia or milk fever) or without symptoms (subclinical hypocalcemia). Ionized calcium (iCa) is the physiologically active form of calcium in blood. It reflects more accurately the current calcemic blood situation compared to total blood calcium as it equals the free available calcium ions. By measuring the ionized calcium levels of blood samples directly cow-side, the treatment of dairy cows can start sooner preventing debilitating symptoms or complications. The new LAQUAtwin Ca-11C has been specially developed for cow-side measurement of ionized calcium in blood. It is ideal for screening dairy cows for hypocalcemia.? Minimum sample volume: 0.3ml? Up to 2 calibration points Auto standard recognition: 1.25 & 2.50 mmol/L calcium ion? Auto hold / auto stable measurement Auto power off: 30 mins. Low battery indicator IP67 Rating dust & waterproof Replaceable sensor 150 hrs. battery life: continuous use without backlight Material: ABS epoxy Display: custom (monochrome) digital LCD with backlight Operating conditions: 5 to 40 ?C, 85% or less relative humidity Warranty: 2 years - meter, 6 months - sensor Packed in handy carrying case Supplied with 1.25 & 2.50 mmol/L calcium standards (25ml x 2 each), 251 cleaning solution (250ml) x 3, CR2032 batteries x 2, wash bottle, instruction and quick manuals Specifications Model LAQUAtwin Ca-11C Measurement Principle Ion Selective Electrode Minimum Sample Volume 0.3 ml Measurement?Range 0.1?5.0 mmol/L Resolution 0.1 mmol/L Accuracy ?20% of reading value Calibration Points 2 points ?1.25 mmol/L and 2.50 mmol/L? Display Custom (monochrome) digital LCD with backlight? Operating Temperature 5?to 40.0 ?C Operating Humidity 85% or less relative humidity (no condensation) Power CR2032 batteries (2) Material ABS epoxy Dimensions 164 x 29 x 20 mm (excluding projections) Mass Approx. 55 g?(including sensor?and batteries) Functions Auto Standard Recognition Auto Hold / Auto Stable Measurement Automatic Power Off (30mins) Low Battery Indicator IP67 Dust / Waterproof Replaceable Sensor Servicing Servicing Options Available ? Have you considered your servicing requirements? Much like a car, scientific instruments may need a bit of care to keep them working reliably and at their most accurate. ? The Allschoolabs Service Department have over 60 years experience in scientific instrumentation. We have a number of highly qualified internal and field-based service engineers able to perform a variety of jobs including preventative maintenance servicing and calibration. Allschoolabs can offer yearly service contracts which include two main types of preventative maintenance/calibration services ? the back to base service and an engineer visit to your site. These options are can be offered with differing turn around times depending on the instrument type and your requirements along with loan instruments if available. ? A typical preventative maintenance service includes the following: Inspection and testing of the unit Dismantling, cleaning and inspection of the key parts Correction of minor defects including adjustments if necessary Reassembly and testing Take post adjustment / cleaning readings Supply of calibration certificate Return of the item to you (back to base services) ? Request a quote for your servicing requirements today. Quote Request LAQUAtwin Measurements LAQUATWIN Three Step Measurement Follow simple, good testing procedures for accurate and dependable results: Calibrate correctly Avoid mixing samples and standards Always keep the sensor clean 1 Calibrate Always ensure the sensor is clean before calibrating. If not, clean thoroughly with water (don?t worry, LAQUAtwin meters are completely waterproof!). Place some standard solution on the sensor and press the calibration button. Once the smiley face appears, indicating that calibration is complete, wash off the standard solution with water and dry with a clean, soft tissue. 2 Test LAQUAtwin meters only need a tiny amount of sample - so no beaker is necessary. Fill the sensor with the sample and when the smiley face appears, the measurement is complete. 3 Clean Clean the sensor thoroughly with water, ready for the next test. When the sensor is nearing the end of its usable lifetime, it can be replaced; You don?t need to replace the meter. Sensors will need to be replaced after approx. 1500 measurements or when calibration cannot be completed. Sensors are sold separately and are easily removed and replaced. ? LAQUATwin One meter Six Different Methods Choose the best method according to your sample, your situation and your needs. Immersion: When you?re in the lab, you can test the sample in a beaker. Ensure the sensor guard sliding cap is open. Scoop: Use as a scoop to test water, for example from a river. Drops: LAQUAtwin meters can measure sample volumes as low as 0.05 mL. Place a drop of the sample onto the sensor with a pipette. Using the HORIBA sampling sheet, volumes down to 0.05 mL can be tested (except for conductivity measurements). Solid samples: Foods containing some moisture can be tested by placing a small piece directly onto the sensor. Powders: LAQUAtwin meters can also test dry powders. Simply place the powder sample onto the sensor, and drop on your defined volume of pure water. Paper and textiles: To test sheets of paper and textiles, cut up the sample into small pieces and place directly onto the sensor. Drop on your defined volume of pure water. LAQUAtwin sampling sheet. The sampling sheet allows trace volumes to be analysed. For example, you can even measure the pH of human skin by wiping with a sampling sheet soaked in pure water, and placing it on the sensor. Using the HORIBA sampling sheet, volumes down to 0.05 mL can be tested (except for conductivity measurements). Horiba Electrode Selection General Laboratory and Field Samples Plastic-body?pH electrodes, either refillable or gel-filled,?are ideal for field measurement.? The glass membrane of refillable electrodes offers an excellent response to low-conductivity water. When the refilling port is covered with the movable slider, the electrode can be used in submerged measurements for up to 30 minutes in a 1m depth of water.? Gel-filled pH electrode?does?not require?refilling. ToupH electrodes are?more impact-resistant than conventional glass-body pH electrodes due to their thick glass membrane. These electrodes are recommended for general laboratory samples. Examples below: 9651-10D (for field-testing) 9625-10D (for general-purpose use) 9615S-10D Standard ToupH electrode (for general laboratory application) 9415-10C Standard ToupH electrode (for general laboratory application) Precise Measurement High stability is required for precise measurement. The following electrodes have glass membranes highly sensitive to low-conductivity water and non-aqueous solvents. A movable sleeve is used at the liquid junction for easy cleaning and clog-free measurement. 9481-10C Sleeve ToupH electrode (for viscous and non-aqueous samples) 9681S-10D Sleeve ToupH electrode (for viscous and non-aqueous samples) 6367-10D (for high accuracy pH measurement) Smaller Volume Samples The volume of the sample must be enough to cover the glass membrane and liquid junction of the pH electrode during measurement. ToupH electrodes are constructed with a thick glass membrane that is highly resistant to impact and chemicals. Long pH electrodes, which come in 3 mm and 8 mm diameters, are suitable for test tubes and tall containers, while micro pH electrodes with 3 mm diameter are perfect for small tubes and trace amounts of samples.? Examples below: 9618S-10D Micro ToupH electrode (for low-volume samples) 9418-10C Micro ToupH electrode (for low-volume samples) 9680S-10D Long ToupH electrode (for large containers and long tubes) 9480-10C Long ToupH electrode (for large containers and long test tubes) 6069-10C (for very slender test tubes) Low Conductivity Samples pH measurement of low conductivity samples such as pure water and non-aqueous solvents can be very challenging. The glass membranes of the following pH electrodes produce an excellent response in the above-mentioned samples. 9481-10C Sleeve ToupH electrode (for viscous and non-aqueous samples) 9681S-10D Sleeve ToupH electrode (for viscous and non-aqueous samples) 9630-10D (for low conductivity samples) Solid and Semi-solid Samples Needle-type pH electrodes can be used to pierce and penetrate solid samples, such as meat, fruits, and food samples, during measurement. Flat pH electrodes and ISFET electrodes are ideal for surface pH measurement of moisture-containing solids such as nutrient agar, skin, cloth, leather, paper, meat, and leaves.? ISFET electrodes can also be used in food processing and other applications where glass is prohibited. 6252-10D (for food samples) 6261-10C (for flat surface measurement) Request Information... For more information on this product please click the Request information button below and we will get back to you as soon as we can. Request information Alternatively, a consultation visit from one of our highly experienced product specialists is available for this range. Typically our specialist will be able to go through the following aspects with you to help you make the right choices and be able to deliver them on time and and on budget. Your product or service requirements Performance criteria Budget constraints Site access Project timeframes Services available Environmental factors Please click the Request Consultation button below and we will get back to you as soon as we can. Request Information The links above will take you to our request information page which will forward your enquiry to our team. Please provide as much detail as possible so that we can get back to you with the right information. We normally aim to get back to you same day or within 24 hours on weekdays. If you enquiry is more urgent please call our support team on 01954 233 120 Feefo Reviews Related Blogs Question: How can I measure the salinity of Brine? Answer: a Brinometer! Brine is simply defined as a solution of salt in water. It has a wide variety of uses from the transport of thermal energy, de-icing the roads or in cooking to preserve meat or vegetables. The low levels of salinity commonly?found in?food or seawater can be tested in a number of ways such as on the Laqua Twin sodium meter?,?Laqua Twin salt meter?or for a multi-pa...8 years ago Product Attachments Horiba LAQUAtwin Pocket Water Quality Meters (3.14 MB) HORIBA LAQUA Product Brochure (15.04 MB) LAQUAtwin Ion Sensor Maintenance Procedures (1.39 MB) LAQUAtwin pH Sensor Maintenance Procedures (1.44 MB) Soil Nitrate Measurement for Determination of Plant-AvailableNitrogen (1.98 MB) LAQUAtwin Conductivity Sensor Maintenance Procedures (1.34 MB) Soil Salinity Measurement in Almond Orchard (5.01 MB) Nitrate Measurement in Turf Grass (2.37 MB) Rapid In-Field Determination of Nitrogen in Onions (1.74 MB) LAQUAtwin Technical Tips (3.35 MB) Horiba LAQUAtwin Application Note - Rapid Screening for Hypocalcemia in Cow's Blood on Dairy Farm (2.38 MB) LAQUA Range Brochure (24.74 MB) More Information More Information ColourWhite