Specifications - Hach 2100AN User Manual

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 5