Trusted measurement for high range turbidity applications; simplified.
The new TL23 Series laboratory turbidimeters blend trusted technology and improved features to simplify testing in the most demanding industrial and wastewater applications.
Improved and intuitive design
The TL23 Series’ large full color touch screen display and intuitive user interface accelerate setup, calibration and measurement. An easy interface and guided procedures give you confidence in your results.
A smart device for more reliable measurements
The TL23 Series ensures stable readings and accurate analysis by capturing turbidity readings once the device detects sample stability. This quality step removes subjectivity and the need for repeated measurements.
Easy to use. Easy to Be Right
The TL23 Series provides everything you need at your fingertips. With a USB port for easy data export, sample identification for traceability, and self-diagnostics for quality assurance, Hach® makes it easy to Be Right.
| Feature | Details |
|---|---|
| Measurement Method | Nephelometric |
| Regulatory | Meets EPA Method 180.1 / Meets ISO 7027, DIN EN 27027, DIN 38404, NFT 9033 |
| Display | 17.8 mm (7 in.) color touch screen |
| Light Source | Tungsten filament lamp / Light-emitting diode (LED) at 860 ± 30 nm |
| Units | NTU and EBC / FNU and NTU / NTU, EBC, Abs (absorbance), %T (% transmittance) and mg/L / FNU, FAU, NTU, EBC, Abs, %T, mg/L |
| Range | NTU (Ratio on): 0 - 4000, NTU (Ratio off): 0 - 40, EBC (Ratio on): 0 - 980, EBC (Ratio off): 0 - 9.8 / NTU/FNU: 0 - 1000 / NTU (Ratio on): 0 - 10000 auto decimal, NTU (Ratio off): 0 - 40, EBC (Ratio on): 0 - 2450 auto decimal, EBC (Ratio off): 0 - 9.8, Absorbance (auto range): 0 - 1.0, Transmittance (%): 1.0 - 100, Degree (mg/L): 1 - 100 / FNU (Ratio on): 0 - 1000, FNU (Ratio off): 0 - 40, FAU (auto range): 20 - 10000, NTU (Ratio on): 0 - 10000 auto decimal, NTU (Ratio off): 0 - 40, EBC (Ratio on): 0 - 2450 auto decimal, EBC (Ratio off): 0 - 9.8, Absorbance (auto range): 0 - 2.00, Transmittance (%): 1.0 - 100, Degree (mg/L): 0 - 100 |
| Accuracy | Ratio on: ±2% of reading plus 0.01 NTU from 0 - 1000 NTU, ±5% of reading from 1000 - 4000 NTU, Ratio off: ±2% of reading plus 0.01 NTU from 0 - 40 NTU / ±2% of reading plus 0.01 FNU/NTU from 0 - 1000 FNU/NTU / 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 - 10000 NTU, Ratio off: ±2% of reading plus 0.01 NTU from 0 - 40 NTU, FNU: ±2% of reading plus 0.01 FNU from 0 - 1000 FNU, FAU: ±10% of reading from 20 - 10000 NTU, NTU: ±2% of reading plus 0.01 NTU from 0 - 1000 NTU, ±5% of reading from 1000 - 4000 NTU, ±10% of reading from 4000 - 10000 NTU |
| Absorbance | 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 / 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 NTU/EBC (on lowest range) / Turbidity: 0.001 NTU/EBC, Absorbance: 0.001 Abs, Transmittance: 0.1% T |
| 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) |
| Reading Modes | Single, continuous, Rapidly Settling Turbidity™, signal averaging on or off, ratio on or off / Single, continuous, Rapidly Settling Turbidity™, signal averaging on or off / Single, continuous, Rapidly Settling Turbidity™, signal averaging on or off, ratio on or off / Manual or auto range, signal averaging on and adjustable or off, ratio on or off |
| Stabilization Time | Ratio on: 30 minutes after start-up, Ratio off: 60 minutes after start-up / Immediately / Ratio on: 30 minutes after start-up, Ratio off: 60 minutes after start-up / Immediately |
| Communication | USB |
| Interface | 2 USB-A ports for USB flash drive, external printer, keyboard and barcode scanner |
| Data Logging | 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) max, Hose barb connection for 1/8-inch tubing |
| Sample Cell Compatibility | 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) |
| Certifications | CE, KC, RCM |
| Power Requirements | 100 - 240 V AC, 50/60 Hz, 3.4 A |
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