EC TDS meter AD330

EC TDS meter AD330

ADWA AD330 or AD332: a professional waterproof portable meter for conductivity, TDS and temperature

The EC TDS meter AD330 is a reliable and waterproof portable meter that measures electrical conductivity (EC) in five ranges, TDS (total dissolved solids) and temperature. The autoranging function sets the measuring scale with the highest resolution by itself, which ensures accurate results.

The set includes an AD76309 conductivity probe with a built-in temperature sensor, calibration solutions, four AA batteries and a user manual.

According to the manufacturer ADWA, it measures EC from 0.00 µS/cm to 199.9 mS/cm, TDS from 0.00 ppm to 100.0 ppt and temperature from −9.9 to 120.0 °C with an accuracy of ±1% of full scale.

EC TDS meter AD330

How to calibrate and what else it offers

EC calibration is single-point: you calibrate the zero with a dry probe in air, and the slope with one of six stored standards (84.0 and 1413 µS/cm, and 5.00, 12.88, 80.0 and 111.8 mS/cm) or with your own value. Dip the probe into the standard, remove air bubbles, press CAL, select the standard value and confirm it when CFM starts flashing. The message Stor Good appears.

The meter has automatic (ATC) or manual (MTC) temperature compensation, with the option to switch it off to measure actual conductivity, an optional temperature coefficient, a measurement stability indicator, a GLP function for tracking the data of the last calibration, and an ID code setting for unique identification of the device.

Advantages: EC TDS meter AD330

• Waterproof professional portable meter
• EC in five ranges up to 199.9 mS/cm, TDS up to 100.0 ppt
• Automatic range selection (autoranging) with the highest resolution
• Accuracy ±1% of full scale
• Automatic (ATC) or manual (MTC) temperature compensation, can be switched off
• GLP function and automatic HOLD
• Stability indicator and low battery indicator
• Replaceable 4-ring probe with a built-in temperature sensor
• Device ID code setting
• Price: €289.90

Use: EC TDS meter AD330

Who is it for

Choose it if you are a professional who needs reliable measurements in different environments. If a simpler meter is enough, see the AD-310 EC-TDS meter or the pocket AD31 EC/TDS meter. For laboratory measurement of pH, ORP and ions (ISE) the AD1200 benchtop meter is suitable, and you can follow the data with the AD9316 software.

Maintenance: EC TDS meter AD330

Storing and cleaning the probe

Rinse the probe with clean water after use. For a more thorough clean, remove the sleeve, wipe the probe with a soft cloth or a non-abrasive cleaner, fit the sleeve back correctly and recalibrate the meter. A replacement A76309 EC/TDS electrode is available separately, and the calibration liquid is the 1.413 mS/cm EC/TDS liquid.

Technical specifications: EC TDS meter AD330

• EC / TDS ranges: 0.00 to 19.99 µS / 0.00 to 10.00 ppm; 0.0 to 199.9 µS / 0.0 to 100.0 ppm; 0 to 1999 µS / 0 to 1000 ppm; 0.00 to 19.99 mS / 0.00 to 10.00 ppt; 0.0 to 199.9 mS / 0.0 to 100.0 ppt
• Resolution: 0.01 / 0.1 / 1 µS/ppm; 0.01 / 0.1 mS/ppt
• Accuracy: ±1% of full scale
• Temperature: −9.9 to 120.0 °C, resolution 0.1 °C, accuracy ±0.5 °C
• EC calibration: zero 0.0 µS/cm, slope 1 point with 6 stored standards
• Temperature compensation: ATC/MTC from −9.9 to 120 °C, coefficient 0.0 to 10.0 %/°C
• Reference temperature: adjustable 15 to 30 °C
• TDS factor: 0.4 to 1.0
• Probe: 4-ring EC (K=1) with a built-in NTC10K sensor
• GLP: yes, with a time stamp
• Power supply: 4 × 1.5 V AA

If you are looking for an EC TDS meter AD330 for professional measurement of conductivity, TDS and temperature, this is a waterproof portable ADWA meter with automatic range selection. Also see all EC and TDS meters.