Hach TL2350 Benchtop Turbidimeter

The Hach TL2350 Benchtop Turbidimeter delivers dependable, precise, and repeatable turbidity measurements across a wide range of applications, meeting the requirements of EPA Method 180.1. Its tungsten lamp light source provides stable performance over an extended measurement range of 0–10,000 NTU, making it ideal for routine water quality testing in municipal, settings. Built to withstand high sample throughput and rigorous daily use, the TL2350 ensures the accuracy and consistency required for compliance testing and quality assurance programs.

Engineered with an intuitive full-color touchscreen interface, the TL2350 streamlines operation with guided setup, calibration, and measurement workflows that reduce training time and operator error. Automatic sample stability detection ensures every reading is taken at the optimal point, eliminating uncertainty and the need for repeated measurements. Additional convenience features—such as rapid USB data export, sample ID tracking, and integrated self-diagnostics—enhance traceability and minimize downtime. With its durable construction, user-focused design, and advanced analytical capability, the Hach TL2350 is a smart, reliable choice for laboratories seeking precise, efficient, and compliant turbidity measurement day after day.

Please Note: Instrument grade air or dry nitrogen source are required for use of air purge system and are not included with purchase.

All of our equipment is fully tested to perform at factory specifications before being shipped.

Hach TL2350 Benchtop Turbidimeter Specifications

Range	NTU (Ratio on): 0 to 10000 auto decimal NTU (Ratio off): 0 to 40 EBC (Ratio on): 0 to 2450 auto decimal EBC (Ratio off): 0 to 9.8 Absorbance (auto range): 0 to 1.0 Transmittance (%): 1.0 to 100 Degree (mg /L): 1 to 100
Reading Modes	Single, continuous, Rapidly Settling Turbidity, signal averaging on or off, ratio on or off
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)
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)
Source Lamp	Tungsten Lamp
Stabilization Time	Ratio on: 30 minutes after start-up Ratio off: 60 minutes after start-up
Accuracy	Ratio on: ± 2% of reading plus 0.01 NTU from 0 to 1000 NTU, ± 5% of reading from 1000 to 4000 NTU ± 10% of reading from 4000 to 10000 NTU Ratio off: ± 2% of reading plus 0.01 NTU from 0 to 40 NTU
Accuracy 3	Absorbance: ± 0.01 Abs from 0 to 0.5 Abs at 455 nm, ± 2% Abs from 0.5 to 1 Abs at 455 nm Transmittance: 2% T from 10 to 100% T at 455 nm
Display	17.8 mm (7 in.) color touch screen
Interface	2 USB-A ports for USB flash drive, external printer, keyboard and barcode scanner
Air Purge Requirements	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
Light Source	Tungsten filament lamp
Measurement Method	Nephelometric
Model	TL2350 EPA
Operating Temperature Range	0 to 40 °C
Storage Conditions	-20 to 60°C
Units	NTU, EBC, Abs (absorbance), %T (% transmittance) and mg/L
Regulatory	Meets EPA Method 180.1
Dimensions (W x D x H)	15.5 x 12 x 6 in. (39.5 x 30.5 x 15.3 cm)
Weight	6.6 lb. (3.0 kg)
Electrical Requirements	100-240VAC, 50/60Hz, 3.4A