User Guide

AMMONIA HIGH RANGEAMMONIA HIGH RANGE

AMMONIA HIGH RANGE

SPECIFICATIONS

Range 0.0 to 50.0 mg/L

Resolution 0.1 mg/L

Accuracy ±0.5 mg/L ±5% of reading

Typical EMC ±0.1 mg/L

Deviation

Light Source Tungsten lamp with narrow band interference

filter @ 420 nm

Method Adaptation of the ASTM Manual of Water and

Environmental Technology, D1426-92, Nessler

method. The reaction between ammonia and

reagents causes a yellow tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93733A-0 Nessler Reagent 4 drops (in fresh and seawater)

HI 93733B-0 Ammonia Reagent 9 mL (in fresh and seawater)

REAGENT SETS

HI 93733-01 Reagents for 100 tests

HI 93733-03 Reagents for 300 tests

For other accessories see page 141.

MEASUREMENT PROCEDURE

• Select the program number corresponding to Ammonia HR on the

secondary LCD by pressing PROGRAM W and V.

• Fill a cuvet with 1 mL of unreacted sample, by

means of the syringe.

• Add 9 mL of HI 93733B

Ammonia Reagent, by

means of the 3 mL plastic

pipette. Place the cap and

swirl the solution to mix.

• Place the cuvet into the holder and

ensure that the notch on the cap is

positioned securely into the groove.

Ammonia HR

1 mL of

sample

9 mL