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TECHNICAL SPECIFICATIONS 

2.1 

Technical Parameters 

Measuring Method 

  ISO 7027 and DIN EN 27027   

compliant nephelometric method (90°) 

Light Source 

Infrared light emitting diode (860±30nm) 

Measuring Range 

0 – 1000 NTU, automatic range selection: 

0.01 – 19.99 NTU 

20.0 – 99.9 NTU 
100 – 1000 NTU 

Accuracy 

≤ ±2 % of r stray light 

Repeatability   

≤ ± 1% of reading or 0.02 NTU (FTU), the greater of the two 

Resolution 

0.01 / 0.1 / 1 NTU (FNU) 

Stray Light 

≤0.02 NTU (FNU) 

Calibration Standards 

AMCO Polymer or Formazin Solution:  

0, 20, 100, 400 and 800 NTU (FNU) 

Detector 

Silicon photovoltaic 

Measurement Mode 

Normal measurement and average measurement mode 

Display 

TFT color screen 

Sample Vials 

Φ25×60 mm, high borosilicate glass with lid 

Sample Volume 

18 ml 

Power Supply 

4× AA Alkaline Batteries 

Operating Condition 

Temperature: 0 to 50°C

32°F to 122°F

);

Relative humidity

  

0 – 90% at 30°C, 0 – 80% at 40°C, 0 – 70% at 50°C, no 

condensation 

Storage Condition 

Instrument: -40 to 60°C (-40 to 140°F) 

Calibration Solution: 5 to 30°C (41 to 86°F) 

Instrument sealing 

grade 

IP67       

Certificates 

 CE and RoHS 

Limited Warranty 

2 years 

Dimension and Weight 

 Meter: (90×203×80) mm/385g 

Test Kit: (310×295×110) mm/1.5kg 

Содержание 28APE190008/AI481

Страница 1: ...1 TN400 Portable Turbidity Meter Instruction Manual APERA INSTRUMENTS Europe GmbH www aperainst de...

Страница 2: ...isplay Mode 6 3 4 Keypad 7 3 5 Power Supply 7 4 Meter Calibration 8 4 1 Preparation for Calibration 8 4 2 Calibration Procedure Take 0 NTU and 20 NTU as an example 9 4 3 Notes for Calibration 10 5 Tur...

Страница 3: ...manner wherever you are Main features and functions Large TFT color screen with clear on screen instructions for easy operation Average measurement mode automatically takes 10 sets of readings consec...

Страница 4: ...ymer or Formazin Solution 0 20 100 400 and 800 NTU FNU Detector Silicon photovoltaic Measurement Mode Normal measurement and average measurement mode Display TFT color screen Sample Vials 25 60 mm hig...

Страница 5: ...he sample vial holder Close the cover when measuring Housing Display Keypad Battery cover Dust proof plug Take off the plug when measuring Sample vial holder Calibration vials or sample vials Position...

Страница 6: ...on solution Measurements and unit Progress bar Operational guide Calibration Menu Calibration mode Standard values Operation guide Finish calibration indicator Calibration Solutions 0 0 20 0 100 400 8...

Страница 7: ...ard solution 3 5 Power Supply 1 The instrument adopts 4 pieces of AA alkaline battery Make sure there is no mixture of new old batteries or different models of batteries 2 Battery capacity indication...

Страница 8: ...tion has 6 to 12 months of shelf life distilled water is only valid for a couple of days AMCO 0 0 NTU solution is provided in the default kit For purchase details please refer to Section 6 Replacement...

Страница 9: ...asurement Power on the instrument set parameter P2 continuous measurement time to 5 times Long press to start continuous measurement don t insert the vial then wait for 3 to 5 minutes 2 Open the flip...

Страница 10: ...rate as long as the target measurement range is in between of the two calibration points In calibration setup mode press or to select the calibration point c Low turbidity calibration requirement For...

Страница 11: ...d sterilized They can be used directly for the first time For subsequent uses follow the steps below to perform a thorough cleaning Clean the sample vial inside and outside with detergent rinse with d...

Страница 12: ...uracy b Sample vial cleaning requirement Sample vials must be rigorously cleaned and free from smudges or scratches When wiping user should grip the cap and bottom to avoid leaving fingerprints on the...

Страница 13: ...NTS 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 fai...

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