User Manual

Table of contents

Specifications on page 3 Standard operation on page 9

General information on page 4 Maintenance on page 14

User interface on page 7 Troubleshooting on page 14

Startup on page 8

Specifications

Specifications are subject to change without notice.

Specification Details

Measurement method Nephelometric

Regulatory Meets ISO 7027, DIN EN 27027, DIN 38404 and

NFT 9033

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 Light-emitting diode (LED) at 860 ± 30 nm

Measurement modes FNU and NTU

Range FNU (manual range): 0–0.999, 0–9.99, 0–99.9, 0–

1000

FNU (auto range): 0–1000

NTU (manual range): 0–0.999, 0–9.99, 0–99.9, 0–

1000

NTU (auto range): 0–1000

Accuracy

±2% of reading plus 0.01 FNU/NTU from 0–

1000 FNU/NTU

Resolution Turbidity: 0.001 FNU/NTU (on lowest range)

Specification Details

Repeatability ±1% of reading or 0.01 FNU, 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 Immediately

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

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

28 W maximum

Pollution

degree/installation