
Specification Details
Accuracy1, 2, 3FNU4: ±2% of reading plus 0.01 FNU from 0–1000 FNU
NTU4: ±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
Absorbance: ±0.005 Abs from 0–1 Abs at 860 nm
Transmittance: 0.12% T from 10–100% T at 860 nm
Resolution Turbidity: 0.001 FNU/NTU/EBC
Absorbance: 0.001 Abs
Transmittance: 0.1% T
Repeatability ±1% of reading or 0.01 FNU/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 Immediately
Reading modes Single, continuous, Rapidly Settling Turbidity™, signal averaging on or off, ratio on or
off
Communication USB
Interface 2 USB-A ports for USB flash drive, external printer, keyboard and barcode scanner
Datalog Maximum 2000 total logs, includes reading log, verification log and calibration log
Air purge Dry nitrogen or instrument grade air (ANSI MC 11.1, 1975)
0.1 scfm at 69 kPa (10 psig); 138 kPa (20 psig) maximum
Hose barb connection for 1/8-inch tubing
Sample cells Round cells 95 x 25 mm (3.74 x 1 in.) borosilicate glass with rubber-lined screw caps
Note: Smaller sample cells (less than 25 mm) can be used when a cell adapter is used.
Sample requirements 25 mm sample cell: 20 mL minimum
0 to 70 °C (32 to 158 °F)
Certification CE, KC, RCM
Warranty 1 year (EU: 2 years)
General information
In no event will the manufacturer be liable for direct, indirect, special, incidental or consequential
damages resulting from any defect or omission in this manual. The manufacturer reserves the right to
make changes in this manual and the products it describes at any time, without notice or obligation.
Revised editions are found on the manufacturer’s website.
Additional information
Additional information is available on the manufacturer's website.
1Turbidity specifications identified using recently prepared formazin standard and matched 25-
mm sample cells.
2Reference conditions: 23 ± 2 °C, 50 (± 10)% RH noncondensing, 100–240 VAC, 50/60 Hz
3Intermittent electromagnetic radiation of 3 volts/meter or greater may cause slight accuracy
shifts.
4FNU is equivalent to NTU in the Ratio off mode.
4 English