User Manual Owner 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, NEPH (Nephelo) and EBC

Range NTU (Ratio on, manual range): 0–0.999, 0–9.99, 0–

99.9, 0–4000

NTU (Ratio on, auto range): 0–4000 auto decimal

NTU (Ratio off): 0–40.0

Nephelo (Ratio on, manual range): 0–9.99, 0–99.9, 0–

26,800

Nephelo (Ratio on, auto range): 0–26,800 auto

decimal

Nephelo (Ratio off): 0–268

EBC (Ratio on, manual range): 0–0.999, 0–9.99, 0–

99.9, 0–980

EBC (Ratio on, auto range): 0–980 auto decimal

EBC (Ratio off): 0–9.8

Accuracy

Ratio on: ±2% of reading plus 0.01 NTU from 0–

1000 NTU, ±5% of reading from 1000–4000 NTU

based on formazin primary standard

Ratio off: ±2% of reading plus 0.01 NTU from 0–

40 NTU (under reference conditions

)

Resolution Turbidity: 0.001 NTU/EBC, Nephelo (on lowest range)

Specification Details

Repeatability ±1% of reading or 0.01 NTU, whichever is greater

(under reference conditions)

Response time Signal averaging off: 6.8 seconds

Signal averaging on: 14 seconds (when

10 measurements are used to calculate the average)

Stabilization time Ratio on: 30 minutes after start-up

Ratio off: 60 minutes after start-up

Reading modes Manual or auto range, signal averaging on or off, Ratio

on or off

Power requirement 115–230 VAC, 50/60 Hz (automatic power selection)

28 W maximum

Pollution

degree/installation