Hach TL2350 Manuel D'utilisation De Base page 4

Specification
2, 3, 4
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
2
Turbidity specifications identified using USEPA filter assembly, recently prepared formazin
standard and matched 25-mm sample cells.
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, 100–240 VAC, 50/60 Hz
4 English
Details
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: ±0.01 Abs from 0–0.5 Abs at 455 nm, ±2% Abs from
0.5–1 Abs at 455 nm
Transmittance: 2% T from 10–100% T at 455 nm
Turbidity: 0.001 NTU/EBC
Absorbance: 0.001 Abs
Transmittance: 0.1% T
±1% of reading or 0.01 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)
Ratio on: 30 minutes after start-up
Ratio off: 60 minutes after start-up
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