LaMotte 1200-CL User Manual

1200 COLO RIMETER
CHLO RINE
DPD TABLET TEST
MODEL 1200-CL · CODE 3670-01
QUANTITY CONTENTS CODE
100 *Chlorine DPD #1 Instrument Grade Tablets *6903A-J
100 *Chlorine DPD #3 Instrument Grade Tablets *6197A-J
1 Colorimeter Tubes, w/caps,set of 6 0290-6
2 Tablet Crushers 0175
1 Water Sample Collecting Bottle 0688
1 1200 Colorimeter for Chlorine DPD 26728
*WARNING: Reagents marked with an * are considered to be potential health hazards. To view
or print a Material Safety Data Sheet (MSDS) for these reagents see MSDS CD or
www.lamotte.com. To obtain a printed copy, contact LaMotte by e-mail, phone or fax.
To order individual reagents or test kit components, use the specified code number.
INTRODUCTION
Chlorine is added to water to kill bacteria and other disease-producing organisms,
control algae, and remove undesirable odors and colors. Chlorine added to water quickly
forms hypochlorous acid, HClO, also known as Free Avai lable Chlorine, the active
ingredient responsible for chlorine*s sanitizing capabilities. Free Available Chlorine
combines with impurities in the water to form chloramines and other organic nitrogen
compounds. In combined form, its sanitizing capability diminishes, and higher levels of
chlorine are necessary to achieve effective sanitation.
Therefore, it is essential to chlorinate to the point of establishing a Free Available
Chlorine Residual, and then to maintain that residual at a recommended level. The
LaMotte DPD tablet test method distinguishes levels of Free Availabl e Chlorine,
Combined Chlorine, and Total Residual Chlorine, using a single test sample.

LaMotte 1200-CL Specifications

General

Type	Colorimeter
Parameter	Chlorine
Resolution	0.01 mg/L
Method	DPD
Wavelength	520 nm
Light Source	LED
Detector	Silicon Photodiode
Power	4 AAA batteries
Operating Temperature	0 to 50°C
Model	1200-CL

Summary

Introduction to Chlorine Testing

Chlorine Test Procedure - DPD Method

Free Available Chlorine Determination

Step-by-step guide for measuring Free Available Chlorine using the DPD method.

Total Residual Chlorine Determination

Step-by-step guide for measuring Total Residual Chlorine using the DPD method.

Combined Chlorine Calculation

Subtract Free Available Chlorine reading from Total Residual Chlorine reading.

DPD Chlorine Test Method Specifications

Application of DPD Chlorine Test

Details the intended uses and applications for the DPD Chlorine test method.

Chlorine Measurement Range

Specifies the operational range for chlorine concentration measurement.

DPD Test Method Principle

Explains the chemical reaction principles behind the DPD chlorine test.

Sample Handling and Preservation

Provides guidelines for proper sample collection, handling, and preservation.

Interferences in DPD Testing

Identifies substances that may interfere with the DPD chlorine test results.

Instrument Calibration

Outlines procedures and recommendations for checking instrument calibration.