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Hach Company TL23 Series Benchtop Turbidimeters

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TL23 Series Benchtop Turbidimeters

The TL23 Series benchtop turbidimeters for a wide range of turbidity applications feature the trusted technology of Hach’s legacy benchtop turbidimeters and improved functionality to simplify testing. These features include a colour touch screen, a USB port for data transfer, self-diagnostics for quality assurance, and single point calibration for measurements under 40 NTU/FNU. 
 
The TL23 Series benchtop turbidimeters are available in four different models: two models with tungsten lamp at 460 nm, and two models with LED light source at 860 nm.

Models

TL2350
Attributes

Edit Model

Depth 305 mm
Height 153 mm
Width 395 mm
Weight 3 kg
Additional Specifications Accuracy
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
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 nmAir purge:Dry nitrogen or instrument grade air (ANSI MC 11.1, 1975)
0.05 L/s at 69 kPa (10 psig); 138 kPa (20 psig) max
Hose barb connection for 1/8-inch tubing
Certifications
CE, KC, RCM
Communication
USB
Data logging
2000 total logs, includes reading log, verification log and calibration log
Display
17.8 mm colour touch screen
Interface
2 USB-A ports for USB flash drive, external printer, keyboard and barcode scanner
Light source
Tungsten filament lamp
Measurement method
Nephelometric
Operating Temperature Range
0 to 40 °C
Power requirements (Amps)
3.4 APower Requirements (Hz):50/60 Hz
Power requirements (Voltage)
100 - 240 VAC
Range
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
Reading modes
Single, continuous, Rapidly Settling Turbidity, signal averaging on or off, ratio on or off
Regulatory
Meets EPA Method 180.1
Repeatability
±1% of reading or 0.01 NTU, whichever is greater (under reference conditions)
Resolution
Turbidity: 0.001 NTU/EBC
Absorbance: 0.001 Abs
i 0.1% T
Response Time
Signal averaging off: 6.8 seconds
Signal averaging on: 14 seconds (when 10 measurements are used to calculate the average)
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)
Stabilisation time
Ratio on: 30 minutes after start-up
Ratio off: 60 minutes after start-up
Storage conditions
-20 to 60 °C
Units
NTU, EBC, Abs (absorbance), %T (% transmittance) and mg/L
TL2310
Attributes

Edit Model

Depth 305 mm
Height 153 mm
Width 395 mm
Weight 3 kg
Additional Specifications Accuracy
±2% of reading plus 0.01 FNU/NTU from 0 - 1000 FNU/NTU
Air purge
Dry nitrogen or instrument grade air (ANSI MC 11.1, 1975)
0.05 L/s at 69 kPa (10 psig); 138 kPa (20 psig) max
Hose barb connection for 1/8-inch tubing
Certifications
CE, KC, RCM
Communication
USB
Data logging
2000 total logs, includes reading log, verification log and calibration log
Display
17.8 mm colour touch screen
Interface
2 USB-A ports for USB flash drive, external printer, keyboard and barcode scanner
Light source
Light-emitting diode (LED) at 860 ± 30 nm
Measurement method
Nephelometric
Operating Temperature Range
0 to 40 °C
Power requirements (Amps)
3.4 A
Power Requirements (Hz)
50/60 Hz
Power requirements (Voltage)
100 - 240 VAC
Range
NTU/FNU: 0 - 1000
Reading modes
Single, continuous, Rapidly Settling Turbidity, signal averaging on or off
Regulatory
Meets ISO 7027, DIN EN 27027, DIN 38404 and NFT 9033
Repeatability
±1% of reading or 0.01 FNU/NTU, whichever is greater (under reference conditions)
Resolution
Turbidity: 0.001 FNU/NTU (on lowest range)
Response Time
Signal averaging off: 6.8 seconds
Signal averaging on: 14 seconds (when 10 measurements are used to calculate the average)
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)
Stabilisation time
Immediately
Storage conditions
-20 to 60 °C
Units
FNU and NTU
TL2360
Attributes

Edit Model

Depth 305 mm
Height 153 mm
Width 395 mm
Additional Specifications Accuracy
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: ±0.005 Abs from 0 - 1 Abs at 860 nm
Transmittance: 0.12% T from 10 - 100% T at 860 nm
Air purge
Dry nitrogen or instrument grade air (ANSI MC 11.1, 1975)
0.05 L/s at 69 kPa (10 psig); 138 kPa (20 psig) max
Hose barb connection for 1/8-inch tubing
Certifications
CE, KC, RCM
Communication
USB
Data logging
2000 total logs, includes reading log, verification log and calibration log
Display
17.8 mm colour touch screen
Interface
2 USB-A ports for USB flash drive, external printer, keyboard and barcode scanner
Light source
Light-emitting diode (LED) at 860 ± 30 nm
Measurement method
Nephelometric
Operating Temperature Range
0 to 40 °C
Power requirements (Amps)
3.4 A
Power Requirements (Hz)
50/60 Hz
Power requirements (Voltage)
100 - 240 VAC
Range
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
Reading modes
Manual or auto range, signal averaging on and adjustable or off, ratio on or off
Regulatory
Meets ISO 7027, DIN EN 27027, DIN 38404 and NFT 9033
Repeatability
±1% of reading or 0.01 FNU/NTU, whichever is greater (under reference conditions)
Resolution
Turbidity: 0.001 NTU/EBC
Absorbance: 0.001 Abs
Transmittance: 0.1% T
Response Time
Signal averaging off: 6.8 seconds
Signal averaging on: 14 seconds (when 10 measurements are used to calculate the average)
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)
Stabilisation time
Immediately
Storage conditions
-20 to 60 °C
Units
FNU, FAU, NTU, EBC, Abs (absorbance), %T (% transmittance) and mg/L
TL2300
Attributes

Edit Model

Depth 305 mm
Height 153 mm
Width 395 mm
Weight 3 kg
Additional Specifications Accuracy
Ratio on: ±2% of reading plus 0.01 NTU from 0 - 1000 NTU, ±5% of reading from 1000 - 4000 NTU based on formazin primary standard
Ratio off: ±2% of reading plus 0.01 NTU from 0 - 40 NTU
Air purge
Dry nitrogen or instrument grade air (ANSI MC 11.1, 1975)
0.05 L/s at 69 kPa (10 psig); 138 kPa (20 psig) max
Hose barb connection for 1/8-inch tubing
Certifications
CE, KC, RCM
Communication
USB
Data logging
2000 total logs, includes reading log, verification log and calibration log
Display
17.8 mm colour touch screen
Interface
2 USB-A ports for USB flash drive, external printer, keyboard and barcode scanner
Light source
Tungsten filament lamp
Measurement method
Nephelometric
Operating Temperature Range
0 to 40 °C
Power requirements (Amps)
3.4 A
Power Requirements (Hz)
50/60 Hz
Power requirements (Voltage)
100 - 240 VAC
Range
NTU (Ratio on): 0 - 4000
NTU (Ratio off): 0 - 40
EBC (Ratio on): 0 - 980
EBC (Ratio off): 0 - 9.8
Reading modes
Single, continuous, Rapidly Settling Turbidity, signal averaging on or off, ratio on or off
Regulatory
Meets EPA Method 180.1
Repeatability
±1% of reading or 0.01 NTU, whichever is greater (under reference conditions)
Resolution
Turbidity: 0.001 NTU/EBC (on lowest range)
Response Time
Signal averaging off: 6.8 seconds
Signal averaging on: 14 seconds (when 10 measurements are used to calculate the average)
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)
Stabilisation time
Ratio on: 30 minutes after start-up
Ratio off: 60 minutes after start-up
Storage conditions
-20 to 60 °C
Units
NTU and EBC

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