Apera Instruments TN400 Portable Turbidity Meter – ISO 7027 Compliant
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Apera Instruments TN400 Portable Turbidity Meter
Apera Instruments TN400 Portable Turbidity Meter is built with an infrared light source, using ISO7207 compliant nephelometric method (90°), equipped with a large TFT colored screen, designed for reliable turbidity measurements from 0 to 1000 NTU in various applications both in-field and in-lab e.g. environmental monitoring, water treatment, beverage making, etc.
The test kit comes with 4 vials of high-molecular polymer turbidity standard solutions (0.02 NTU, 20.0 NTU, 100 NTU, 800 NTU), an EPA approved primary standard for calibration of turbidity sensors that is safe, non-toxic and disposable. It is NIST traceable to particle size/distribution and optical density, and its inherent stability means it does not settle from suspension.
The standards have a guaranteed one-year shelf life even if you’ve opened the bottle and happened not to have recapped it tightly. The convenient submicron polymer suspensions are non-toxic primary calibration standards approved by the US EPA for drinking water analysis for turbidity.
| Measuring Method | ISO 7027 compliant nephelometric method（90°） |
| Measuring Range | 0 to 1000 NTU, automatic range selection:
0.01 to 19.99 NTU 20.0 to 99.9 NTU 100 to 1000 NTU |
| Resolution | 0.01/0.1/1 NTU |
| Reading Error | ≤ ±2 % of reading± stray light |
| Repeatability | ≤ ±1% of reading or 0.02 NTU, whichever is greater |
| Calibration Standards | 0.02 NTU, 20.0 NTU, 100 NTU, 800 NTU(Polymer) |
| Light Source | Infrared light emitting diode（850nm wavelength） |
| Detector | Silicon photovoltaic |
| Display | TFT Color screen |
| Sample Vials | Φ25×60 mm, high borosilicate glass with screw cap |
| Sample Volume | 18 ml |
| Operating Temp. Range | 0 to 50˚C (32 to 122˚F) |
| Power Supply | 4× AA Alkaline Batteries |
| IP Rating | IP67 |
| Dimension/Weight | Meter：(90×203×80)mm / 385 g
Portable Case：(310×295×110)mm / 1.5 kg |
| Quality and Safety Certificate | ISO9001:2008 & CE |
We warrant this instrument to be free from defects in material and workmanship and agree to repair or replace free of charge, at the option of APERA INSTRUMENTS, LLC, any malfunctioned or damaged product attributable to the responsibility of APERA INSTRUMENTS, LLC for a period of TWO YEARS for the instrument from the delivery.
This limited warranty does NOT cover any issues due to:
- Accidental damage
- Improper use
- Normal wear and tear
- Transportation
- Storage
- Failure to follow the product instructions
- Unauthorized maintenance, modifications, combination or use with any products, materials, processes, systems or other matter
- Unauthorized repair
- External causes such as accidents, abuse, or other actions or events beyond our reasonable control.
Description
Apera Instruments TN400 Portable Turbidity Meter
TN400 Portable Turbidity Meter Kit – ISO 7027 Compliant
Large Colored TFT display with graphic and text guides, Accuracy: ±1% or 0.02 NTU, whichever is greater
- Infrared light source — ISO7027 compliant
- Easy and quick calibration
- TFT Colored Screen (measurement mode, green in calibration) with graphic and text operation guides
- U.S. EPA certified, non-toxic, easy-to-use polymer standard solutions
- CE certified and comes with 2-Year Warranty
