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Table of Contents
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Summary of Contents for TPI 390
- Page 1 TPI 390 Digital Salt/TDS-Meter Operation Manual...
- Page 2 Clean the sensor area with a neutral detergent using a soft cloth or sponge before and after use. 2. Description • The 390 measures the concentration of dissolved NaCl/TDS in liquids. • Simply immerse the tip into liquids to determine the NaCl/TDS content and temperature.
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Page 3: Table Of Contents
Contents 1. Precautions 5. Specifications 2. Product Description 6. Measurement Techniques 3. Functions 7. Battery Replacement & Troubleshooting 4. LCD Display 8. Calibration 1. Precautions Before use please read this operation manual and observe the procedures and methods specified to ensure accurate, reliable measurements. -
Page 4: Product Description
2. Product Description... -
Page 5: Functions
3 Functions Sensors Used to measure Salt concentration, TDS and Temperature. The surface is gold plated and the temperature sensor is contained inside. This area is waterproof. Power (ON/OFF) button Used to turn the power on and off. After use, the power turns off automatically within one minute. Measurement selection (MODE) button Used to select the measurement mode: Salt concentration(%), TDS(ppm, mg/L) or Temp.(℃). -
Page 6: Lcd Display
4. LCD display Symbols Display Contents ℃/ °F Indicates the temperature of sample. Indicates the salt concentration contained within the sample. It indicates the TDS volume within the sample. It states in 4 figures without any unit It is lighted when the measured value is held /is used to “ Auto Calibration” or “ Auto Temp HOLD/CAL Exchange”... -
Page 7: Specifications
5. Specifications Name Handheld Digital TDS/Salt-Meter Model number Measurement Range: 0 ~ 999ppm (mg/L) Measurement accuracy: ±3% Full scale (@20℃) Excellent temperature range: 10℃ ~ 30℃ (50℉ ~ 86℉) Measurement Temperature range: 0℃ ~ 40℃ (32℉ ~ 104℉) Measurement method: Electric Conductivity measurement system Salt Measurement range: 0.00% ~ 5.0% Excellent temperature: 10℃... - Page 8 6. Measuring Concentrations and Temperature (1) Turn the 390 on and the temperature is displayed. Fully immerse the sensor into the liquid to be measured. If a solid food is being measured, break it into pieces and dilute it with water. Allow approximately 10 seconds for the temperature to stabilize.
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Page 9: Battery Replacement & Troubleshooting
7. Battery Replacement & Troubleshooting Replace the battery when the symbol appears on the display. (1) Open the cover in the back of the main body and pull out the used battery. Insert a new battery (LR44) paying attention to the polarity (positive(+), negative(-)). Always replace each of the 3 cells with new ones at the same time. (2) Close the cover and turn on power to confirm whether the batteries were replaced correctly.
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