User Guide

25
AMMONIA HIGH RANGE
SPECIFICATIONS
Range 0 to 100 mg/L (as NH
3
-N)
Resolution 1 mg/L
Precision ±3 @ 50 mg/L
Typical EMC ±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 Q.ty/test Q.ty/set
* Reagent Vial 1 vial 25 vials
HI 93764-0 Nessler Reagent 4 drops 1 bottle
* Reagent Vial identification: A, green cap.
Note: Store the unused vials in their container in a cool and dark
place.
REAGENT SET
HI 93764B-25 Reagents for 25 tests
For other accessories see page 77.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Ammonia HR on the
secondary LCD by pressing PROGRAM t and s.
• Remove the cap from a Reagent Vial.
• Add exactly 1.0 mL of sample to the
vial, while keeping the vial at a 45-
degree angle.
• Replace the cap and mix by inverting
the vial a couples of times. This is
the blank.
Ammonia HR
56
PHOSPHORUS, REACTIVE
SPECIFICATIONS
Range 0.00 to 5.00 mg/L (as PO
4
3-
)
Resolution 0.01 mg/L
Precision ±0.05 @ 2.50 mg/L
Typical EMC ±0.01 mg/L
Deviation
Light Source Tungsten lamp with narrow band interference filter
@ 610 nm
Method Adaptation of the EPA method 365.2 and Standard
Methods for the Examination of Water and
Wastewater, 20
th
edition, 4500-P E, ascorbic acid
method. The reaction between orthophosphate and
the reagent causes a blue tint in the sample.
REQUIRED REAGENTS
Code Description Q.ty/test Q.ty/set
* Reagent Vial 1 vial 50 vials
HI 93758-0 Phosphorus Reagent 1 packet 50 packets
* Reagent Vial identification: P, red cap.
REAGENT SET
HI 93758A-50 Reagents for 50 tests
For other accessories see page 77.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Reactive Phosphorus
on the secondary LCD by pressing PROGRAM t and s.
• Remove the cap from a Reagent Vial.
• Add exactly 5.0 mL of sample to the
vial, while keeping the vial at a 45-
degree angle.
• Replace the cap and mix by inverting
the vial a couple of times. This is
the blank.
Phosphorus, Reactive