Hanna Magnesium Colorimeter

VERSION 2

HI783 Marine Magnesium handheld checker is designed to determine the concentration of magnesium in saltwater aquariums.

HI783 features a single-button operation system and is easy to use.

The large LCD is easy to read and the auto shut-off feature assures the battery will not be drained.

Specifications

Range 1000 to 1800 ppm Magnesium

Resolution 5 ppm

Accuracy ±5% of reading @ 25 °C (77 °F)

Light source Light Emitting Diode @ 610 nm

Light detector Silicon photocell

Method

Adaptation of the colorimetric EDTA method using

calmagite indicator. The reaction between magnesium and

the reagents causes a blue to violet tint in the sample.

Environment

0 to 50 °C (32 to 122 °F); max. 95% RH non-condensing

Prepared sample cuvette (sample plus reagents) must be

18 to 28 °C (64 to 82 °F).*

Battery type 1.5V AAA Alkaline

Auto shut-off After 10 minutes of non-use

Dimensions 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”)

Weight 64 g (2.3 oz)

Interferences – Calcium below 300 ppm and above 500ppm

Each HI783 is delivered in a case with custom insert and is supplied with:

• Sample cuvette and cap (2 pcs.)

• Marine Magnesium reagent starter kit (reagents for 25 tests) • 1 mL graduated syringe and tip (1 pc.)

• 5 mL syringe and tip with black printing (1 pc.)

• 5 mL syringe and tip with blue printing (1 pc.)

• 1.5V AAA Alkaline battery (1 pc.)

• Instruction manual

• Quick-reference guide