Hanna HI99301P Portable High-Range EC/TDS/Temperature Meter
The Hanna Instruments HI99301P is a robust and portable meter engineered for accurately measuring Electrical Conductivity (EC), Total Dissolved Solids (TDS), and temperature. This high-range instrument is designed for ease of use in the field, providing reliable readings essential for a variety of applications such as water treatment, agriculture, aquaculture, reverse osmosis, and HVAC. Housed in an IP67-rated waterproof case, the HI99301P is built to withstand tough environments. It provides accurate results, featuring automatic temperature compensation and user-adjustable parameters for precise measurements. The meter's large, multi-level LCD clearly displays readings, temperature, and calibration guides, making operation intuitive.
Key Features
• Multi-Parameter Measurement: This versatile device measures Electrical Conductivity (EC), Total Dissolved Solids (TDS), and temperature simultaneously.
• High-Range Measurement Capability: Offers a wide measurement range for EC from 0.00 to 20.00 mS/cm and TDS from 0.00 to 10.00 ppt (g/L), suitable for various high-conductivity samples.
• Rugged and Waterproof Design: Housed in a durable ABS plastic enclosure with an IP67 rating, ensuring the meter can withstand demanding field conditions.
• Integrated Temperature Sensing Probe: Comes with a HI76306 two-ring EC/TDS probe that includes a built-in temperature sensor, allowing for accurate temperature-compensated readings. The probe is designed to resist clogging and is easy to clean.
• Automatic Temperature Compensation (ATC): Automatically adjusts readings for temperature effects within the range of 0 to 60°C (32 to 140°F), ensuring high accuracy regardless of ambient temperature.
• Adjustable Parameters for Precision:
◦ Adjustable TDS Factor: The meter features an adjustable TDS conversion factor from 0.45 to 1.00 with 0.01 intervals, allowing users to select the most appropriate factor for their specific solution.
◦ Adjustable Temperature Compensation Coefficient (β): The temperature compensation coefficient is adjustable from 0.0 to 2.4%/°C with 0.1% intervals, providing precise correction for temperature changes.
• High Accuracy: Delivers reliable results with an impressive ±2% F.S. (Full Scale) accuracy for both EC and TDS readings.
• Automatic Calibration: Features a simple one-point automatic calibration process using a standard 12.88 mS/cm solution for EC, which also automatically calibrates TDS readings. Direct calibration in 6.44 ppt TDS solution is also possible when the meter is in TDS mode with a 0.5 conversion factor.
• Battery Error Prevention System (BEPS): Alerts the user when battery power is too low to ensure reliable and accurate measurements.
• Instability Indicator: A "clock tag" symbol on the display disappears once a stable reading has been achieved, ensuring reliable data collection.
• Automatic Shut-Off: Features an automatic power-off function after 8 minutes of non-use, with user-selectable options to extend to 60 minutes or disable the feature entirely, conserving battery life.
• Long Battery Life: Powered by three 1.5V AAA batteries, providing approximately 500 hours of continuous use. The remaining battery percentage is displayed on startup.
• Portable and User-Friendly: Designed to fit comfortably in the palm of your hand, with a bottom probe connection that keeps the cable out of the way for convenient fieldwork.
What's Included
The HI99301P meter comes complete with everything needed to begin measurements:
• Hanna HI99301P Portable EC/TDS/Temperature Meter
• HI76306 EC/TDS/Temperature Probe with built-in temperature sensor and a 1-metre cable with DIN connector
• Calibration solution sachets (12.88 mS/cm and 6.44 ppt)
• Three 1.5V AAA batteries
• Instruction manual
• Rugged carrying case
Specifications
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Feature
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Specification
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Model
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HI99301P Portable High-Range EC/TDS Meter
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EC Range
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0.00 to 20.00 mS/cm
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EC Resolution
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0.01 mS/cm
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EC Accuracy
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±2% F.S.
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TDS Range
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0.00 to 10.00 ppt (g/L)
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TDS Resolution
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0.01 ppt (g/L)
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TDS Accuracy
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±2% F.S.
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Temperature Range
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0.0 to 60.0°C (32.0 to 140.0°F)
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Temperature Resolution
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0.1°C / 0.1°F
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Temperature Accuracy
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±0.5°C / ±1°F
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Calibration
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Automatic, one point at 12.88 mS/cm, 6.44 ppt (CONV 0.5)
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EC/TDS Temperature Compensation
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Automatic, 0 to 60°C (32 to 140°F) with β adjustable from 0.0 to 2.4%/°C with 0.1% step
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EC/TDS Factor
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Adjustable from 0.45 to 1.00 with 0.01 step (default 0.50)
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Probe
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HI76306 EC/TDS probe with internal temperature sensor, DIN connector and 1m cable
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Battery Type/Life
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3 x 1.5V AAA / approximately 500 hours of continuous use
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Automatic Shut-Off
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User selectable: after 8 min, 60 min, or disabled
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Environment
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0 to 50°C (32 to 122°F); RH max 100%
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Dimensions
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152 x 58 x 30 mm (6.0 x 2.3 x 1.2”)
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Weight
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205 g (7.2 oz.)
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