HI 749

Checker®HC Handheld Colorimeter – Chromium VI LR

The HI 749 Checker®HC is a simple, accurate, and cost effective way to measure low ranges of chromium VI in fresh water.  Designed as a more accurate alternative to chemical test kits, the HI 749 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 readingThe HI 749 uses an adaptation of the ASTM Manual of Water and Environmental Technology,

D1687-92, Diphenylcarbohydrazide method. The reaction between chromium VI and the reagent causes a purple tint in the sample.FEATURES/BENEFITS:

* Small palm-sized design
* Accurate from ±3 ppb ±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 PRIMARY APPLICATIONS:

* Water Quality
* Education
* Plating
* EnvironmentalOrder Information:
The HI 749 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (6 packets of chromium VI LR reagent), 1 x 1.5V AAA battery, and an instruction manual.

 Specifications

Range		0 to 300 ppb
Resolution		1 ppb
Accuracy (@25°C/77°F)		±3 ppb ±5% of reading
Measurement Method		Colorimetric
Light Source		Photodiode @525 nm
Light Detector		Silicon photocell
Method		Adaptation of ASTM Manual of Water & Environmental Technology, D1687-92, Diphenylcarbohydrazide method. The reaction between chromium VI and the reagent causes a purple 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.)

Quotation and Ordering
131 Thailand Science Park. Innovation Cluster 1 Building, Klong 1, Klong Luang, Pathumthani 12120 Thailand.
Tel. +6681-847-6768, +662-191-3928 Fax +662-191-3929 Mr.Thoniwadh +6685-811-4779, Ms.Nareerat +6685-814-9653
Email: info@highents.com

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131 อุทยานวิทยาศาสตร์ประเทศไทย อาคารกลุ่มนวัตกรรม 1 ต. คลองหนึ่ง อ. คลองหลวง จ. ปทุมธานี 12120
โทร. 081-847-6768, 02-191-3928 แฟกซ์ 02-191-3929 คุณโทณิวัฒน์ 085-811-4779, คุณนารีรัตน์ 085-814-9653
Email : info@highents.com