User Guide

REAGENT SETS

HI 93710-01 Reagents for 100 pH tests

HI 93710-03 Reagents for 300 pH tests

HI 93722-01 Reagents for 100 CYS tests

HI 93722-03 Reagents for 300 CYS tests

For other accessories see page 48.

MEASUREMENT PROCEDURE

• Turn the meter on by pressing ON/OFF.

• The meter will automatically default to pH mea-

surement mode.

• When the LCD displays “- - -”, it is ready.

pH MEASUREMENTS

In order to perform pH measurements, follow the procedure on

page 46.

CYANURIC ACID MEASUREMENTS

• Press the pH/CYS key to select the cyanuric acid scale. “pH” will

disappear from the LCD.

• Follow the procedure on page 38.

OFF

HI 93724

Cyanuric A. & pH

INTERFERENCES

Interference may be caused by:

Bromine

Chlorine

Ozone

Oxidized forms of chromium and manganese

Alkalinity above 300 mg/L and acidity above 150 mg/L as CaCO

require neutralization since the color could instantly fade. To resolve

this, neutralize the sample with diluted HCl or NaOH.

In case of water with hardness greater than 500 mg/L CaCO

, shake

the sample for approximately 1 minute after adding the reagent.

Iodine