Hanna Instruments

Hanna Instruments - Mini Ammonia Marine Photometer - HI784

  • -7.9%
  • -7.9%

Hanna Instruments ' HI784 Ammonia Checker Mini Photometer is specially designed to quickly and accurately determine ammonia levels in saltwater aquariums and marine applications . With a digital readout, you won't have to struggle to determine colors visually.

Order it before 15:00 tomorrow and receive it on Thursday, April 25, 2024 with Chronopost - Livraison express à domicile

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Calculation of toxic ammonia (NH3)

To determine the amount of ammonia NH3, multiply the value of total free ammonia (NH3/NH4+) displayed by the photometer by the percentage of ammonia indicated in the table below.
Example: pH 8.0, temperature: 24°C, NH3 / NH4+ 1.00 mg/L (ppm)
Concentration of toxic ammonia: 1.00 mg/L (ppm) x (5.0 ÷ 100)= 0.05 mg/L (ppm)

Percentage of ammonia (NH3)

pH 21°C 24°C 26°C 29°C
7.6 1.7 2.1 2.4 2.9
7.8 2.6 3.2 3.7 4.5
8.0 4.1 5.0 5.8 7.0
8.2 6.3 7.7 8.8 11
8.4 9.7 12 13 16
8.6 15 17 20 23
8.8 21 25 28 32

Technical characteristics :

HI784 comes with 2 measuring cuvettes and their caps, reagents for 10 ammonia tests, 1 plastic filling pipette and the battery.

Technical data

Specifications HI783
Range

0.10 to 2.50 mg/L (ppm) in NH3

Resolution 0.01mg/L (ppm)
Accuracy (at 25°C)

±0.05 mg/L (ppm) ±5% of reading

Method Adaptation of the salicylate method. The reaction between ammonia and ammonium and the reagent causes a blue-green coloration of the sample
Light source 610nm LEDs
Light detector Silicon photocell
Environment The prepared sample cuvette (sample plus reagents) must be between 18 and 28°C*
Dimensions / Weight 86 x 61 x 37.5mm / 64g

Quantity

€75.99
€69.99 Save 7.9%
Tax included
In stock (2)