Checker photometer for free chlorine LR

HI701 Details:

Ideal for swimming pools, spas and aquariums. Chlorine is the most commonly used water disinfectant and by monitoring chlorine regularly and accurately, serious health and safety risks can be avoided.

The contoured style of the HI-701 Free Chlorine Checker is designed to fit in the palm of your hand. The large LCD is easy to read and the auto shut-off feature ensures the battery life will not be drained if you forget to turn it off.

Can also be used to determine chlorine levels in fish tanks for optimum fish and plant health. Use alongside recommended dechlorinators.

Checker®HC is supplied with reagents for 6 tests. Use code HI-701-25 (25 tests) for future purchases.

Ideal for

• Swimming pools and spas
• Fruit, vegetable and salad washing
• Disinfection
• Aquaculture

Main Benefits

• Testing is quick and easy
• High precision results - more accurate than chemical test kits
• Auto shut-off feature means the Checker cannot be left on by mistake
• Fully portable, fitting easily into both palm and pocket

Supplied with

• 2 sample cuvettes
• Cuvette cap
• Starter pack of reagents (re-ordering information - HI-701-25
• 1 x 1.5 AAA battery
• Instructions

Four steps, one click instant readout

  1. Zero the Checker

  2. Add reagent

  3. Insert sample into Checker

  4. Press button for results

 

Also available: Calibration set HI-701-11.

Range		0.00 to 2.50 ppm (mg/L)
Resolution		0.01 ppm (mg/L)
Precision		3% of reading ±0.03 ppm (mg/L) @ 25°C
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 2 minutes of non-use and after read
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 USEPA method 330.5. The reaction between free chlorine and the DPD reagent will cause a pint tint in the sample.

PLEASE NOTE:		In some cases, samples may contain other parameters which may interfere with results
Interference may be caused by:		Bromine, Iodine, Ozone, Oxidized forms of Chromium and Manganese. In case of water with hardness greater than 500 mg/L CaCO3, shake the sample for approximately 2 minutes after adding the powder reagent. If the water used for this procedure has an alkalinity value greater than 250 mg/L CaCO3 or acidity value greater than 150 mg/L CaCO3, the colour of the sample may develop only partially, or may rapidly fade. To resolve this, neutralise the sample with diluted HCl or NaOH.

HI701-11 Details:

The Free Chlorine Checker HC® Calibration Check Set – HI-701-11 provides a simple solution to validating the Free Chlorine Checker® HC – HI-701 in the range of 0.00 to 2.50 ppm (mg/L). 

Standard value of 1.00 +/- 0.05 ppm free chlorine @ 25°C

HI-701-11 is a high-quality set of calibration standards that allows users to validate the Free Chlorine Checker® HC – HI-701. The HI-701-11 includes one sealed cuvette for zero ppm free chlorine and one cuvette that is tinted to an equivalent 1.00 +/- 0.05 ppm free chlorine sample @ 25°C.

This high-quality set of standards is supplied with a Certificate of Analysis. The Certificate of Analysis provides the lot number, reference values and expiry date to provide traceability when certifying the Checker® HC.

HI701-25 Details:

The HI-701-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Free Chlorine Checker® HC.

The 25 pack of reagents is for use with the HI-701 Free Chlorine Pocket Checker.

These reagents follow the DPD Method in which the reaction between chlorine and reagent causes a pink tint in the sample. By simply adding the packet of HI-701-25 reagent, the reaction will take place and the HI-701 will determine the concentration from the colour that is produced. The results will be displayed in ppm (mg/L) of free chlorine. These reagents are designed to be used with samples that have an expected range of 0.00 to 2.50 ppm free chlorine.

Tip for an accurate measurement

It is important that the sample does not contain any debris.

Whenever the cuvette is placed into the measurement cell, it must be dry outside and completely free of fingerprints, oil or dirt. Wipe it thoroughly with HI-731318 or a lint-free cloth prior to insertion.

Shaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette.

Do not let the reacted sample stand for too long after reagent is added, or accuracy will be lost.

After the reading, it is important to discard the sample immediately, otherwise the glass might become permanently stained.