9
SPECIFICATIONS
Specifications subject to change without notice.
Operating specifications applicable at 25 °C unless noted.
Program software copyrighted by Hach Company, 1991.
Measurement Method: Ratio Nephelometric signal (90°) scatter light
ratio to transmitted light
Range: 0-1000 NTU with automatic decimal point placement or
manual range selection of 0-9.99, 0-99.9 and 0-1000 NTU
Accuracy: ± 2% of reading plus stray light from 0-1000 NTU
Resolution: 0.01 NTU on lowest range
Repeatability: ±1% of reading or 0.01 NTU, whichever is greater (with
Gelex standards)
Response Time: 6 seconds for full step change without signal
averaging in constant reading mode
Stray Light: <0.02 NTU
Standardization: StablCal
®
Stabilized Formazin primary standards or
Formazin primary standards
Secondary Standards: Gelex
®
Secondary Standards
Display: Four-digit liquid crystal; 10.16 mm (0.4 in) high digits with
custom icons
Light Source: Tungsten filament lamp; lamp life typically greater than
100,000 readings
Detectors: Silicon photovoltaic
Signal Averaging: Operator selectable on or off
Sample Cells: (Height X width) 60.0 X 25 mm (2.36 X 1 in)
Borosilicate glass with screw caps, marking band and fill line
Sample Required: 15 mL (0.5 oz.)
Storage Temperature: -40 to 60 °C (-40 to 140 °F) (instrument only)
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