Compact and robust instrument ideal for demanding environments. Versatile COD testing with High, Medium, and Very Low Range measurements. Wireless (NFC) and wired (USB-C) data transfer. User friendly and intuitive user interface The MD50 COD is a next generation compact, single parameter photometer for the measurement Chemical Oxygen Demand (COD). The MD50 is an advanced successor to the MD100 COD photometer, offering improved accuracy, enhanced user experience, and expanded testing capabilities. Now featuring the innovative Very Low Range (VLR) COD method, it enables ultra-sensitive measurements like never before.The instrument offers seamless integration with existing COD vial tests and accessories like RD125 thermoreactor for sample digestion. The MD50 is available as a standalone instrument as well as a complete COD set including thermos reactor, reagents and the accessories. Description The MD50 has several key features that make it a favorite among users.Robust DesignThe MD50 is built to last. Its rugged industrial design, complete with rubber-protected sides and an IP67 rating, ensures unmatched durability and reliability even in demanding environments.Accurate, Reproducible ResultsThe innovative optical system of the MD50 delivers exceptional accuracy and speed, ensuring precise readings in record time.Factory Programmed MethodsAll MD50 instruments come with pre-programmed methods for different types of reagents. Simply select the test you need, prepare your sample, and test! To simplify test selection, you can choose the reagent type from the settings and display only your desired methods in the methods list.User Calibration and User defined MethodA one-point calibration is possible with the MD50. The instrument automatically saves the calibration protocol in the logs along with the calibration factor. All user-calibrated methods are displayed with a calibration icon on the screen. Can't find the method you need? The MD50 also allows you to program a user-defined method using PC software.One-Time-Zero FunctionSave time by zeroing the instrument once for each sample. When testing a new sample, zero the instrument once and all subsequent tests of that sample do not require re-zeroing. You can also activate or deactivate the OTZ function for all methods in the settings.Automatic Data StorageThe MD50 automatically stores the last 100 readings and protocols with a time and date stamp. Results remain in storage even during a battery exchange.Data TransferThe MD50 offers smooth and effortless data transfer. You can transfer data to the AquaLX® app via NFC or use a USB cable to transfer data to PC software. Data can also be exported in CSV format for programs like Excel.Ergonomic DesignWhether you're using the MD50 in the field or in the lab, its design makes it easy to handle and view the display. In the field, the compact size and side protections ensure a firm grip during use. In the lab, rubber feet on the bottom of the housing eliminate the need for two-handed operation or chasing your instrument around the workbench.GLP ComplianceTo ensure data quality and integrity, the MD50 creates and saves a protocol for each change made during operation. Technical Data Optics LED, spectrometer sensor, interference filter (selected variants only) Light Source LED Wavelength Variant specific (415, 445, 480, 515, 530, 555, 590, 630, 680) Photometric Range 0 - 3 Abs Photometric Accuracy 3 % FS (T = 20 °C – 25 °C) Suitable Vials Round Cuvettes 13 mmRound Cuvettes 16 mmRound Cuvettes 24 mm Display Backlit LCD Interfaces USB-CNFC (Near Field Communication) Data Transfer Format .csv Operation Foil keypad Auto – OFF Yes Programmability yes with PC software Calibration Factory and user adjustment - return to factory adjustment possible at any time Updates Firmware and methods update Internal Storage Internal ring memory for 100 data records Power Supply 2 x AA batteries Alkaline Batteries (LR6) 3V DC / 55mA Battery Life Time approx. 5000 measurements (without backlight) Portability Portable Degree of Pollution 2 Maximum altitude above sea level 3500 m Environmental Conditions 5 - 50 °C at a relative humidity of 30 - 95 % (non-condensing) IP Rating IP 65 Compliance CE Languages Full User Manual English, German, Spanish, French, Portuguese, Italian, Dutch, Turkish, Chinese Dimensions 155 x 76 x 45 mm Weight 247 g Range Testparameter Measuring Range Method No. Chemical Method COD HR TT 0.2 - 15 g/L O2 M132 Dichromate / H2SO4 COD LMR TT 15 - 300 mg/L O2 M133 Dichromate / H2SO4 COD LR TT 3 - 150 mg/L O2 M130 Dichromate / H2SO4 COD MR TT 20 - 1500 mg/L O2 M131 Dichromate / H2SO4 COD VLR TT 2.0 - 60.0 mg/L O2 M134 Dichromate / H2SO4 Delivery Content 1 Instrument in Carrying case 2 batteries (AA) Adapter for ø 16 mm cuvettes 1 Screwdriver 1 Syringe 1 mL 1 Syringe 2 mL 1 USB-C to USB-A cable 1 Instruction manual QR code insert MD50/MD150 1 Certificate (COC) 1 Warranty information
