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Technical Data

Features:

• Model B-771
• Measurement principle 2 AC bipolar
• Minimum sample volume 0.12 mL or more
• Measurement range
  • Conductivity: 0 to 19.9 mS/cm (0 to 1.99 S/m)
  • Salt: 0 to 1.1% TDS: 0 to 9900 ppm
• Display range *1 0 to 199 mS/cm (0 to 19.9 S/m)
• Range and Resolution
  • 1) 0 to 199 μS/cm : 1 μS/cm
  • 2) 0.20 to 1.99 mS/cm : 0.01 mS/cm
  • 3) 2.0 to 19.9 mS/cm : 0.1 mS/cm
  • 4) 20 to 199 mS/cm : 1 mS/cm
• Calibration: Two-point*2
• Accuracy*3: ±2%F.S.±1digit (for each range)*4
• Functions: Salt/TDS Measurement • Auto range change • Temperature conversion (2%/°C fixed) • IP67 Water/Dust proof*5 • Auto hold •  Automatic power off (15 minutes)
• Display: Custom (monochrome) digital LCD
• Operating temperature: Humidity 5 to 40°C, 85% or less in relative humidity (no condensation)
• Power: CR2032 batteries (x2)
• Battery life Approx. 400 hours in continuous use
• Main Material ABS epoxy
• Dimensions /Mass 164 mm × 29 mm × 20 mm (excluding projections) / Approx. 45 g (meter only, without batteries)

Notes:

1. *1 The display value flashes when out of the range.
2. *2 Selectable between one-point and two-point calibrations. High conductivity standard solution (12.9 mS/cm) is sold separately.
3. *3 Repeatability in measurement of a standard solution after calibration.
4. *4 1) ±5 μS/cm (0 to 199 μS/cm ) 2) ±0.05 mS/cm (0.20 to 1.99 mS/cm) 3) ±0.5 mS/cm (2.0 to 19.9 mS/cm) 4) ±5 mS/cm (20 to 199 mS/cm)
5. *5 IP67: no failure when immersed in water at a depth of 1 meter for 30 minutes. But the product can not be used underwater.