Product Features
- Hanger Ring
- LCD Display
- Hold (Test) Switch
- Measurement Selection (Mode) Switch
- Power ON/OFF Switch
- Probe
- Sensor
- Sensor Cover
- Sample Spoons (includes 2)
390 Applications
Water: Test TDS levels to determine purity
Food: Test the amount of salt in food, seafood, or processed foods
Health: Monitor the amount of salt intake
Water Filtration: Test for TDS to determine performance level of filtration systems
Pools & Spas: Monitor TDS levels to prevent maintenance problems
HVAC:
- Test condensate water in cooling tower and humidifier reservoir applications to prevent bacterial growth
- Test TDS levels in make-up water to prevent scale formation, corrosion, and embrittlement
- Reduce water and chemical consump tion in boilers and cooling towers
- Determine when to perform blowdown and add make-up water
- Prevent contamina tion and corrosion of control valves, heat exchangers, and steam traps
- Verify automated TDS contollers are functioning properly
- Prevent low quality wet steam generation in boilers due to foaming caused by high TDS levels
Before Use
- Please carefully read the Operators Manual before using this meter
- Clean the sensor area with a neutral detergent using a soft cloth or sponge before and after use
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Model 390 Specifications
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Salt Measurement
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Range: 0.01% to 5.0%
Resolution: 0.01% / 0.1%
Temperature Range: 32°F to 158°F (0°C to 70°C)
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TDS Measurement
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Range: 0 to 999ppm (mg/L)
Resolution: 1ppm (mg/L)
Accuracy: ±3% full scale @ 20°C
Temperature Range: 32°F to 104°F (0°C to 40°C)
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Temperature Measurement
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Range: 32°F to 212°F (0°C to 100°C)
Accuracy: ±2°F (1°C) (32°F to 158°F / 0°C to 70°C)
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Power Supply
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LR44 or LR1154 Button Battery (x3)
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Dimensions
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0.65” x 1.25” x 10.03” (16.4mm x 32mm x 255mm)
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Weight
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2oz (57g) including button batteries
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