Specification
1, 2, 3
Accuracy
Resolution
Repeatability
Response time
Stabilization time
Reading modes
Communication
Interface
Datalog
Air purge
Sample cells
Sample requirements
Certification
Warranty
Section 2 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.
1
Turbidity specifications identified using recently prepared formazin standard and matched 25-
mm sample cells.
2
Reference conditions: 23 ± 2 °C, 50 (± 10)% RH noncondensing, 100–240 VAC, 50/60 Hz
3
Intermittent electromagnetic radiation of 3 volts/meter or greater may cause slight accuracy
shifts.
4
FNU is equivalent to NTU in the Ratio off mode.
4 English
Details
4
FNU
: ±2% of reading plus 0.01 FNU from 0–1000 FNU
4
NTU
: ±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
Turbidity: 0.001 FNU/NTU/EBC
Absorbance: 0.001 Abs
Transmittance: 0.1% T
±1% of reading or 0.01 FNU/NTU, whichever is greater (under reference
conditions)
Signal averaging off: 6.8 seconds
Signal averaging on: 14 seconds (when 10 measurements are used to
calculate the average)
Immediately
Single, continuous, Rapidly Settling Turbidity
off, ratio on or off
USB
2 USB-A ports for USB flash drive, Seiko DPU-S445 printer, keyboard
and barcode scanner
Maximum 2000 total logs, includes reading log, verification log and
calibration log
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
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.
25 mm sample cell: 20 mL minimum
0 to 70 °C (32 to 158 °F)
CE, KC, RCM
1 year (EU: 2 years)
™
, signal averaging on or
1
/
-inch tubing
8