2020t/i Portable Turbidity Meters

Order Code: 1974

New RATIOMETRIC design in one of the most innovative, WATERPROOF, handheld meters available on the market!

2020t kitThe multi-detector optical configuration assures long-term stability and minimizes stray light and color interference. The new ratiometric design allows for easy and accurate testing. The nephelometric mode measures 0-40 NTU/FNU, ratiometric mode 40-1000 NTRU/FNRU and 1000-2000 AU. Now pinpoint the range of interest with better, more reliable results. Ideally suited for low-level drinking water applications, mid-range industrial applications, and high-range environmental applications.

  • Seven user selected languages – English, Spanish, French, Japanese, Chinese, Italian, and Portuguese
  • Advanced calibration algorithms
  • Easy menu driven operation and large LCD display
  • 500 point data log; stored results can be viewed directly on instrument

2020t version meets US EPA design criteria as specified by EPA 180.1, Rev. 2.0 (1993) and Standard Methods 2130 B-2001.

2020i version meets design criteria for quantitative methods of turbidity using optical turbidimeters as specified by ISO 7027. Best for colored or extremely turbid samples.

Kits are supplied with 0, 1, and 10 NTU standards (Code 1974-T) or 0, 10, 100 FNU (Code 1974-I), sample bottle, six sample  tubes, USB cable and wall adapter—all in a sturdy carrying case.

  • Waterproof to IP67
  • Lithium ion rechargeable battery
  • USB port
  • 7 languages
  • Backlit display
  • Tungsten and Infrared
Order Codes

1974-T

2020t Kit • Order Code 1974-T:
Portable turbidity meter complies with by EPA 180.1, Rev. 2.0 (1993) and Standard Methods 2130 B-2001

1970-I

2020i Kit • Order Code 1974-I
Portable turbidity meter complies with ISO 7027 Standard

 

Specifications

Turbidity Specifications:    

Mode  Ratiometric Nephelometric  Attenuation 
Unit of Measure
2020t
NTRU, NTU, ASBC, EBC NTU, ASBC, EBC AU, NTU, ASBC, EBC
Unit of Measure
2020I
FNRU, NTU, ASBC, EBC  FNU, NTU, ASBC, EBC  FAU, NTU, ASBC, EBC
Range 0-1,000 NTRU/FNRU
0-17,500 ASBC
0-250 EBC
0-100 NTU/FNU
0-1,750 ASBC
0-25 EBC
0-2,000 AU/FAU
0-35,000 ASBC, 0-500 EBC
Resolution 0–10.99 NTRU/FNRU: 0.01
11.0–109.9 NTRU/FNRU: 0.1
110–1000 NTRU/FNRU: 1
0–10.99 NTU/FNU: 0.01
11.0–100.0 NTU/FNU: 0.1
0–2000 AU/FAU: 1
Accuracy 0-2.5 NTRU/FNRU: ±0.05
2.5-100 NTRU/FNRU: ±2%
100-1000 NTRU/FNRU: ±3%
0-2.5 NTU/FNU: ±0.05
2.5-100 NTU/FNU: ±2%
0-2000 AU/FAU:
±10 AU/FAU or 6%, whichever is greater
Detection Limit 0.05 NTRU/FNRU 0.05 NTU/FNU 10 AU/FAU
Reproducibility 0.02 NTRU/FNRU or 1% 0.02 NTU/FNU or 1% 1%
Range Selection Automatic
Light Source 2020t: Tungsten lamp 2300 °K ±50 °K
2020i: IR LED 860 nm ±10 nm, spectral bandwidth with 50 nm
Detector 2020t: Photodiode, centered at 90° and 180°, maximum peak 400-600 nm
2020i: Photodiode, centered at 90° and 180°

 

Features

 

Meter Features:

Signal Averaging Disabled, 2, 5, 10
Power USB computer cable, wall adapter or Lithium ion rechargeable battery, 3.7V, 2.5” x .75”, 1.7 oz
Data Logging 500 points
Auto Shut-Off Disabled, 5, 10, 30 seconds
Languages English, French, Spanish, Japanese, Italian, Portuguese, Chinese
Response Time <2 seconds="" td="">
Size 7.5 x 3.5 x 2.5 inches; 19.05 x 8.84 x 6.35 cm
Weight 13 ounces
Display 6-line LCD with backlit display