Milwaukee MW306 MAX Waterproof EC/TDS/NaCl/Temp Logging Portable Meter

The Milwaukee MW306 4-in-1 PRO EC/TDS/NaCl/Temp. Logging Portable Meter is fast, reliable, tough and simple to operate.  It is ideal for use by hydroponics, horticulture, labs, food processing, water treatment and many other applications with challenging EC/TDS/NaCL/Temp. measurement needs.

With easy one-point calibration and six standard buffer calibrations choices, the meter can be quickly calibrated to a high accuracy compared to other meters. The MW306 meter is accurate to ± 1% of reading for EC/TDS and NaCL.  It comes with a MA815D/1 conductivity probe with a built-in temperature sensor allowing the meter to automatically adjust the EC/TD/NaCl reading for the effect of temperature (ATC).  It is also IP67 Waterproof rated.

Features:

• Fast, easy-to-read results with large duel level digital LCD readout
• Extreme accuracy to 1% of reading for EC/TDS/NaCl |+/- 0.5°C (+/-0.9°F)
• Extended ranges for EC/TDS/NaCl
• Lightweight and portable, IP67 rated
• Simple, easy-to-use logging and USB download functions, manual or on demand up to 1,000 logs
• GLP data, date and time
• Different logging methods, manual log-on-demand or manual log-on-stability
• Easy measurement: just place the probe in the sample, gently stir and wait for the reading to stabilize
• Single cell factor calibration for EC/TDS automatic simple 1-point calibration
• Rugged, low maintenance, high performance, easy-to-clean EC/TDS/NaCL/Temp probe
• Built-in temperature sensor
• 3 x 1.5V alkaline AA batteries with 200 hours battery life (included)
• Built-in Battery Error Prevention System (BEPS)
• Auto-Ranging Feature for EC/TDS
• Auto shut-off feature to preserve battery energy
• Internal clock date to keep track of different time-dependent functions (calibration, timestamp, calibration time out)
• 3-foot probe cables for extra flexibility when testing

Specifications:

• EC Range: 0.00 to 29.99 uS/cm / 3.0 to 29.9 uS/cm
• EC Range: 30.0 to 299.9 uS/cm / 300 to 2999 uS/cm
• EC Range: 3.00 to 29.99 mS/cm / 30.0 to 200.0 mS/cm / up to 500.0 mS/cm, absolute conductivity*
• TDS Range: 0.00 to 14.99 ppm (mg/L)
• TDS Range: 15.0 to 149.9 ppm (mg/L) / 150 to 1499 ppm (mg/L)
• TDS Range: 1.50 to 14.99 g/L / 15.0 to 100.0 g/l / up to 400.0 g/L absolute TDS* (with 0.80 factor)
• Salinity Range: 0.0 to 400.0 %NaCl / 2.00 to 42.00 PSU
• Salinity Range: 0.00 to 80.00 g/L
• Range: -20.0 to 120.00°C (-4.0 to 248.0°F)
• EC Resolution: 0.01 uS/cm / 0.1 uS/cm / 1 uS/cm
• EC Resolution: 0.01 mS/cm / 0.1 mS/cm
• TDS Resolution: 0.01 ppm / 0.1 ppm / 1 ppm
• TDS Resolution: 0.01 g/L / 0.1 g/L
• Salinity Resolution: 0.1 % NaCl / 0.01 PSU / 0.01 g/L
• Temperature Resolution: 0.1°C / 0.1°F
• Accuracy @ 25°C / 77°F
• EC: ± 1% of reading / ±0.05 uS/cm or 1 digit, whichever is greater
• TDS: ±1 % of reading / ±0.03 ppm or 1 digit, whichever is greater
• Salinity: ±1 % of reading
• Temperature: ±0.5°C (±0.9°F)
• EC/TDS Calibration: single cell factor calibration, 6 standards: 84 uS/cm, 1413 uS/cm, 5.00 mS/cm, 12.88 mS/cm, 80.0 mS/cm, 111.8 mS/cm / one-point offset: 0.00 uS/cm
• Salinity Calibration: one point with MA9066 salinity calibration solution
• Temperature Calibration: no temperature calibration
• Temperature Compensation: Automatic, -5.0 to 100.0°C (-23.0 to 212.0°F) or manual from -20 to 120°C (-4.0 to 248.0°F) or NO TC without temperature compensation
• Conductivity temperature coefficient: 0.00 to 6.00 % / °C (EC and TDS only) | Default value: 1.90 % / °C
• TDS factor: 0.40 to 0.80 / Default value: 0.50
• EC Probe: MA815D/1, (4 ring)
• Temperature probe: Built-in temperature sensor
• Logging: Maximum 1,000 samples (max. 100 lots) / on demand, 200 samples; on stability, 200 samples / interval logging, 1000
• PC Connectivity: 1 micro USB port
• Battery type: 3 X 1.5V alkaline AA (included)
• Battery life: Approx. 200 hours of use
• Auto-off: Selectable 5, 10, 30, 60 min. or off
• Environment: 0 to 50°C / 32 to 122°F; max RH 95%
• Dimensions: 200 x 85 x 50 mm (7.9 x 3.3 x 2.0 inches)
• Casing: IP67
• Weight: .26 kg / 0.58 lbs (with battery)
• Warranty: 2 years, Meter

* Absolute conductivity (or TDS) is the conductivity value without temperature compensation

Milwaukee MW306 Manual

CARE AND USE

EC meters usually start performing poorly because of problems with the sediment on the conductivity probe's rings. The dirty rings on the probe can change impedance. Cleaning the rings is simple, slide the plastic shield off and clean with DI water and soft cloth to keep your readings accurate.

The life of your meter can be extended in the following ways:

1. Storage - When not in use, store the meter and probe in a safe area to avoid damage. The EC probe is stored dry. Remove batteries if not in use for a prolonged period to prevent battery compartment corrosion.
2. Calibration - The MW306 is one-point calibration for ease-of-use. Calibrating regularly is best to keep your meter accurate for all your readings.