TOUGH. MULTI-PARAMETER. IP67 WATERPROOF STANDARD.
The Milwaukee MW806 MAX Combo Meter allows you to easily and accurately test pH, conductivity and total dissolved solids (TDS) using a single meter and integrated probe. Simple, portable, sturdy! The Milwaukee MW806 Max is the ultimate solution for managing pH and nutrients. No more fumbling with multiple meters or electrodes. The MW806 Max also features automatic temperature compensation (ATC).
With the Milwaukee MW806 Max 4-in-1 Combi Meter, you can easily, quickly and precisely measure the pH value (acidity), EC value (conductivity), TDS (total dissolved solids) and temperature with just one meter and one electrode. The meter is also equipped with a USB connection and a data logger function to store the measured values on the meter and/or export them to a PC.
The MW806 MAX Combo Meter is the ultimate solution for pH and nutrient management.
DESIGN FEATURES
- pH, conductivity / nutrient EC, TDS (ppt) with automatic temperature compensation.
- Selectable TDS factors from .40 to 0.8; defaulter value 0.50.
- Stability indicator alerting user when readings stabilize.
- Dedicated GLP button to store and recall system status data.
- A replaceable, Reinforced Combination pH/EC/TDS/Temp probe with a single cable of
- 1 meter for easy use (MA852D/1 probe included)
- A fabric connection to the pH sensor to reduce contamination when measuring fertilizer solutions. Gel filled for long lasting measurements.
- A lightweight and portable form factor of only 9.2 ounces (260 g) with battery and just over 3 inches wide.
- A large, easy-to-read display.
- Factory calibration for temperature and simple, highly accurate, single-cell automatic, one-
- point calibration for EC and automatic to 5-point calibration for pH.
- IP 67 rugged housing built for field or lab applications.
- Special design for hydroponic, aquaponic and greenhouse growers.
USE AND MAINTENANCE
The MW806 MAX tester contains both a pH and an EC electrode. Both require maintenance.
pH
All pH sensors have a limited lifespan and the response time gets longer as they age. Properly maintaining your pH pin tester will help you get fast, accurate results for longer. It is necessary to clean and condition the pH electrode before use!
TOP 4 TIPS FROM MILWAUKEE
- Always store with the cap full of buffer or storage liquid not water.
- Clean your tester regularly by immersion in cleaning solution.
- Calibrate after cleaning and/or storing before testing to correct for changes in the pH and EC sensor.
- Gently stir the tester into the sample for faster results.
EC
EC sensors are more robust, but can still be affected by residue buildup.
EC electrodes may start to release nutrients over time. Rinse the probe with fresh tap water after each use to prevent build-up.
CONVERTING EC TO TDS
The Milwaukee EC pen, like all conductivity meters, provides a measurement of electrically charged ions in a solution and is an absolute measurement of conductivity.
EC is often converted to TDS in parts per million (ppm). There are several scales, such as the 500 scale, the 650 scale, and the 700 scale. However, the true PPM can only be determined by chemical analysis.
Your mS/cm reading can be converted to TDS (ppm) by approximation:
2,000 µS/cm = 2.0 mS/cm = 1000 ppm on .50 factor scale
2,000 µS/cm = 2.0 mS/cm = 1400 ppm on 442 scale or .70 factor scale
Specifications
- Measuring range
- pH: -2.00 to 20.00 pH;
- EC: 0.00 to 20.00 mS / cm;
- TDS: 0 to 10.00 ppt (g/L);
- Temperature: -20.0 to 120.0°C (-4.0 to 248°F).
- Resolution
- pH: 0.01 pH;
- EC: 0.01 mS / cm;
- TDS: 0.01 ppt (g/L);
- Temperature: 0.1°C (0.1°F).
- Accuracy
- pH: ± 0.01;
- EC & TDS: ± 2% full range;
- Temperature: ± 0.5°C (0.90°F).
- Calibration
- pH: Automatic up to 5 measuring points with 7 different buffers ( pH1.68, 4.01, 6.86, 7.01,
- 9.18, 10.01, 12.45 and 2 freely selectable buffers);
- EC: to calibrate to one reference value with choice of 1413 mS/cm, 5.00 mS/cm or 12.88 mS/cm;
- Temperature: factory calibrated.
- Temperature compensation
- Automatic (ATC): -20 to 120°C (-4.0 to 248°F);
- Manual (MTC): -20 to 120°C (-4.0 to 248°F);
- Temperature coefficient conductance: adjustable between 0.00 and 6.00 % /ºC (EC &
- TDS). The default setting is 1.9 % /ºC;
- TDS factor: 0.40 to 0.80 the default value is 0.50;
- Datalogging: Yes, 1000 records stored in up to 100 batches (on button press up to 200 logs, on stable measurement up to 200 logs and automatically up to 1000 logs);
- USB port: 1 micro usb socket on the top;
- Operating environment: 0 to 50 °C / 32 to 122 °F and humidity maximum 95%;
- Batteries: 3 x AA alkaline (included);
- Battery life: ± 200 hours of use;
- Auto-off: after 10 minutes of non-use;
- IP rating meter: IP67;
- Dimensions: 200 x 85 x 50 mm (7.9 x 3.3 x 2 inches);
- Weight: 260 grams (including batteries).
Links
Milwaukee pH-adjuster
