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Ascorbic acid method
±0.04 ppm ±4% of reading accuracy
Large, easy to read digits
Auto shut off
Designed to work with HANNA’s reagents
Uses 10 mL glass cuvettes
Weighing a mere 64 g (2.25 oz.), the Checker®HC easily
fits into the palm of your hand or pocket
Use for quick and accurate on the spot analysis
Single button operation: zero and measure
Operated by a single AAA battery
Aquaculture, natural, waste, drinking waters and agriculture
Orthophosphates are found in natural and wastewaters. They are commonly added to drinking water as a corrosion inhibitor. The instantaneous analysis of orthophosphate by colorimetric determination provides rapid results using a standard analysis technique.
The HANNA HI 713 Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give only a few resolution points while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 713 Checker®HC is accurate and affordable.
The HI 713 Checker®HC portable handheld colorimeter features a resolution of 0.01 ppm (250 points) and ±0.04 ppm (mg/L) ±4% of reading accuracy. The HI 713 Checker®HC uses an adaptation of Standard Method 4500-P E, Ascorbic Acid method.
The HI 713 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagents. Last, place the vial into the Checker®HC, press the button and read the results. It’s that easy.
HI 713 Checker®HC is supplied with sample cuvettes with caps (2), powder reagents for phosphate (6), battery and instructions.
|Range||0.00 to 2.50 ppm (mg/L)|
|Resolution||0.01 ppm (mg/L)|
|Accuracy @ 25°C||±0.04 ppm (mg/L) ±4% of reading|
|Light Source||LED @ 525 nm|
|Light Detector||silicon photocell|
|Environment||0 to 50°C (32 to 122°F); RH max 95% non-condensing|
|Battery Type||(1) 1.5V AAA|
|Auto-off||after two minutes of non-use and ten seconds after reading|
|Dimensions||81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)|
|Weight||64 g (2.25 oz.)|
|Method||adaptation of the Standard Methods for the Examination of Water and Wastewater, 20th edition, Ascorbic Acid method|
Click on the links below to download the Safety Data Sheet.
|HI 93703-50||Cuvette Cleaning Solution|
|HI 731318||Cuvette Cleaning Cloth|
|HI 731321||Glass Cuvette Set|
|HI 731225||Caps for HI 731321 Cuvette|
|Reagents & Standards|
|HI 713-25||Reagents for 25 test|
|HI 713-11||Calibration checking set|