Product Description

Hanna HI-99300 Portable Low Range EC/TDS Meter

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The portable, waterproof Portable Low Range EC/TDS Meter – HI99300 is suitable for use in applications as diverse as wastewater treatment, reverse osmosis, and HVAC. It measures low range conductivity in µS/cm and TDS in ppm. The HI763063 EC/TDS probe is a two-ring sensor that resists clogging and is easy to clean. The probe also features a built-in temperature sensor to allow for Automatic Temperature Compensation from 0 to 60°C (32 to 140°F).

The meter easily fits in the palm of your hand and the bottom probe connection ensures the electrode cable doesn’t get in the way. The large, multi-level LCD displays the primary reading, temperature, and calibration guides simultaneously. Symbols and messages on the LCD indicate meter status and guides users through operations.

Features at-a-glance

Two-ring Probe
The HI763063 is a two-pole probe that comes with the HI99300, offering an accurate solution for low range EC and TDS readings. The probe features a built-in temperature probe to allow for temperature compensated readings.

Two Measurement Modes
HI99300 offers two measurement modes: EC and TDS. Users can easily switch between measurement modes with a simple press of the MODE button. EC measurements range from 0 to 3999 µS/cm; TDS measurements range from 0 to 2000 ppm.

Adjustable TDS Factor
The TDS value in aqueous solutions is directly proportional to conductivity. The ratio between the two parameters depends on the solution being measured. The HI99300 has an adjustable TDS factor from 0.45 to 1.00 with 0.01 intervals, allowing users to choose the conversion factor that is the most appropriate for their particular solution.

Automatic Temperature Compensation
Since temperature has such a dramatic effect on conductivity and TDS readings, having a meter that offers temperature compensated readings is invaluable. The probe of the HI99300 features a built-in temperature sensor that automatically accounts for the effects of temperature in the range of 0 to 60°C (32 to 140°F).

Adjustable Temperature Compensation Coefficient
The temperature compensation coefficient, also known as β, is adjustable from 0.0 to 2.4%/°C with 0.1% intervals; this factor corrects the reading a set percentage % for each degree Celsius change in the sample.

Automatic Calibration
The HI99300 can be automatically calibrated at one point in a standard EC or TDS solution. A 1413 µS/cm standard is used for EC calibration, which will automatically calibrate TDS readings. However, if the meter is in TDS mode and set to either 0.5 or 0.7 conversion factor, a direct calibration in 1382 ppm or 1500 ppm (using 0.5 or 0.7 conversion factor, respectively) TDS calibration solution can be used.

Battery Error Prevention System (BEPS)
The Battery Error Prevention System detects when the batteries become too weak to ensure reliable measurements.

Instability Indicator
The HI99300 displays a clock tag that will disappear when a reading has achieved stability.

Specifications Hanna HI-99300 Portable Low Range EC/TDS Meter


SKU	HI99300
Product Name	Portable Low Range EC/TDS Meter – HI99300
Quote Required	Yes
EC Range	0 to 3999 μS/cm
EC Resolution	1 μS/cm
EC Accuracy	±2% FS
EC Calibration	automatic, one point at 1413 μS/cm
TDS Range	0 to 2000 ppm (mg/L)
TDS Resolution	1 ppm (mg/L)
TDS Accuracy	±2% F.S.
TDS Calibration	automatic, one point at 1382 ppm (CONV 0.5) or 1500 ppm (CONV 0.7)
EC/TDS Temperature Compensation	automatic, 0 to 60°C (32 to 140°F) with β adjustable from 0.0 to 2.4%/°C with 0.1% step
Temperature Correction Coefficient	automatic, with b selectable from 0.0 to 2.4 %/ °C with 0.1 increments
EC to TDS Conversion Factor	selectable from 0.45 to 1.00 (CONV)
Temperature Range	‐5.0 to 105.0 °C / 23.0 to 221.0 °F
Temperature Resolution	0.1°C / 0.1°F
Temperature Accuracy	±0.5°C / ±1°F
EC/TDS Probe	HI763063 with built-in temperature sensor, quick connect DIN connector and 1 m cable (included)
Automatic Shut-Off	user selectable
Battery Type/Life	1.5V AAA (3) / approximately 500 hours of continuous use
IP Protection	IP67
Environment	0 to 50°C (32 to 122°F); RH max 100%
Dimensions	154 x 63 x 30 mm (6.1 x 2.5 x 1.2”)
Weight	196 g (6.91 oz.)
Ordering Information	HI99300 is supplied with HI763063 EC/TDS probe, HI70031 1413 μS/cm calibration solution sachet (1), HI70032 1382 ppm calibration solution sachet (1), 100 mL beaker, batteries, calibration certificates for both meter and probe, instruction manual, and rugged thermoformed carrying case.