Table des Matières
Publicité
Les langues disponibles
Les langues disponibles
Table of contents
Specifications
Specifications are subject to change without notice.
Specification
Details
Measurement method
Nephelometric
Regulatory
Meets EPA Method 180.1
ASTM D7315 - Standard Test Method for
Determination of Turbidity Above 1 Turbidity Unit (TU)
in Static Mode
ASTM D6655 - Standard Test Method for
Determination of Turbidity Below 5 NTU in Static Mode
Light source
Tungsten filament lamp
Measurement modes
NTU, NEP (Nephelo), EBC, Abs (absorbance), %T (%
transmittance), CU (color units) and two user-defined
units
1
Turbidity specifications identified using USEPA filter assembly, recently prepared formazin standard and matched 25-mm sample cells.
2
Use of a flow cell is necessary to get color measurement specifications.
3
Intermittent electromagnetic radiation of 3 volts/meter or greater may cause slight accuracy shifts.
4
Reference conditions: 23 ± 2 °C, 50% ± 10% RH noncondensing, 115/230 VAC, 50/60 Hz
Specification
Details
Range
NTU (Ratio on, manual range): 0-0.999, 0-9.99,
0-99.9, 0-10,000
NTU (Ratio on, auto range): 0-10,000 auto decimal
NTU (Ratio off): 0-40
Nephelo (Ratio on, manual range): 0-9.99, 0-99.9,
0-67,000
Nephelo (Ratio on, auto range): 0-67,000 auto decimal
Nephelo (Ratio off): 0-268
EBC (Ratio on, manual range): 0-0.999, 0-9.99,
0-99.9, 0-2450
EBC (Ratio on, auto range): 0-2450 auto decimal
EBC (Ratio off): 0-9.8
Absorbance (manual range): 0-0.999, 0-2.00
Absorbance (auto range): 0-2.00
Transmittance (%): 1.0-100
Color units (at 455 nm): 0-500
1, 2, 3, 4
Accuracy
Ratio on: ±2% of reading plus 0.01 NTU from
0-1000 NTU, ±5% of reading from 1000-4000 NTU,
±10% of reading from 4000-10,000 NTU
Ratio off: ±2% of reading plus 0.01 NTU from
0-40 NTU
Absorbance: ±0.005 Abs from 0-1 Abs at 455 nm
Transmittance: 0.12% T from 10-100% T at 455 nm
Color: ±2 CU from 0-30 (calibrated at 15 CU), ±5 CU
from 0-500 CU (calibrated at 500 CU)
English 3
Publicité
Table des Matières
