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HI761 Checker HC Handheld Colorimeter - Total Chlorine

Item #: HI761
Manufacturer: Hanna Instruments
from: $49.00 sale: $40.18
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Product Description

The NDHI 761 Checker®HC is a simple, accurate, and cost effective way to measure ultra-low ranges of total chlorine. Designed as a more accurate alternative to chemical test kits, the NDHI 761 provides quick, accurate results in four easy steps.

  1. Step One - Add a sample to the included cuvette(s)
  2. Step Two - Insert sample into the Checker and zero it out
  3. Step Three - Remove sample and add reagent
  4. Step Four — Reinsert sample and click the button to measure your results or...

- Press and hold the button for 3 seconds for a time reaction reading

The NDHI 761 uses an adaptation of the USEPA method 330.5. The reaction between the chlorine and DPD reagent causes a pink tint in the sample.

Features

  • Small palm-sized design
  • Accurate from ±5ppb ± 5% of reading
  • Dedicated to a single parameter
  • Uses a single AAA battery
  • Auto Power Off after 10 minutes in inactivity
  • Built-in timer for timed reaction readings

Specifications

Range   0 to 500 ppb
Resolution   1 ppb
Accuracy (@25°C/77°F)   ±5ppb ± 5% of reading
Measurement Method   Colorimetric
Light Source   Photodiode @525 nm
Light Detector   Silicon photocell
Method   Adaptation of the USEPA method 330.5. The reaction between the chlorine and DPD reagent causes a pink tint in the sample.
Power Supply   Battery - 1 x 1.5V AAA
Power Auto Off   After 10 min. of inactivity
Environment   0 to 50°C (32 to 122°F); RH max 95% non-condensing
Dimensions   81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)
Weight   64 g (2.25 oz.)