HI-9813-51 PH/EC/TDS AND TEMPERATURE PORTABLE METER

About this product

This meter features a large LCD which displays either pH, EC, TDS or temperature readings along with tutorial instructions. The pH readings are displayed with a 0.1 resolution and an accuracy of ±0.1 pH while the EC and TDS readings are displayed with a 0.01 mS/cm and 1ppm (mg/L) resolution and 2% full-scale accuracy.

The EC range of both meters is from 0.00 to 4.00 mS/cm and TDS is from 0 to 1999ppm.

The temperature correction coefficient (β) is fixed at 2%/°C and allows for automatic temperature-compensated measurements of E and TDS.

This meter is calibrated manually to a single point with the use of two trimmers. pH is calibrated to pH 7.01 while EC/TDS is calibrated to either 1.41mS/cm or 1500ppm. The LCD screen has a battery life indicator as well as on-screen tutorial messages. No probe changes are required when switching your measured parameter between pH, conductivity and TDS.

This multiparameter meter reduces the number of instruments required for daily water quality analysis. The supplied probe features a polypropylene body, amplified pH electrode with a built-in EC/TDS and temperature sensors. The amplifier for the pH electrode prevents interference from humidity and electrical noise from common sources including from motors, ballasts or pumps.

Key features

• Waterproof
• Automatic Temperature Compensation
• Simple calibration
• Low battery indicator
• Fast response multi-parameter probe

Contents

• HI-1285-51 multi-parameter probe
• HI-70007 pH 7.01 calibration solution sachet
• HI-70442 1500 ppm (mg/L) calibration solution sachet
• HI-70031 1413 µS/cm calibration solution sachet
• HI-700661 electrode cleaning solution sachets (2)
• Battery and instructions
• Carrying case

Specification

Range: 0.0 to 14.0 pH

• EC: 0.00 to 4.00 mS/cm
• TDS: 0 to 1999 ppm (mg/L)
• Temperature: 0.0 to 60.0°C

Resolution: - pH 0.1 pH

• EC: 0.01 mS/cm
• TDS: 1 ppm (mg/L)
• Temperature: 0.1°C

Accuracy: (@20°C/68°F) - pH ±0.1 pH

• EC: ±2% F.S. mS/cm
• TDS: ±2% F.S. ppm
• Temperature: ±0.5°C
• TDS Conversion Factor: 0.56 to 0.78 ppm = 1 µS/cm (according to TDS 442 curve)
• pH Calibration: manual, 1 point
• EC Calibration: manual, 1 point
• EC/TDS Temperature Compensation: automatic 0 to 70°C with β=2%/°C
• Probe: HI-1285-51
• Battery Type: 9V 
• Battery Life: approximately 450 hours of continuous use
• Environmental operating conditions: 0 to 50°C; 100% RH
• Dimensions: 145 x 80 x 36 mm
• Weight: 230g

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