LaMotte DC1500 CHLORINE User Manual
DC1500 CHLORINE
Chlorine Colorimeter Kit • DPD Tablet
Code 3240
Firmware Version 2.10
2
CONTENTS
Chlorine & Bromine DPD Tablet Kit
Kit Contents .......................................................................................... 5
Accessories .......................................................................................... 5
Test Method Specifications
Application ............................................................................................ 6
Range ..................................................................................................... 6
Method .................................................................................................. 6
Handling & Preservation .................................................................... 6
Interferences ........................................................................................ 6
Calibration ............................................................................................ 6
Analysis
Chlorine ................................................................................................. 7
Bromine ............................................................................................... 10
Calibration
Chlorine Standards ...........................................................................12
Chlorine Calibration Procedure ....................................................... 12
Set Up
Setting the Clock ...............................................................................15
Logging Data ......................................................................................16
Factory Setup .....................................................................................17
Setting Power Save ...........................................................................17
Setting Backlight Time .....................................................................18
Selecting A Language .......................................................................19
Looping Menus ................................................................................... 20
Computer Connection
Output ..................................................................................................21
Computer Connection ....................................................................... 21
Battery
Battery/AC Operation ........................................................................21
Battery Replacement ........................................................................ 22
Maintenance
Cleaning ..............................................................................................22
Repairs ................................................................................................22
Meter Disposal ...................................................................................23
General Operating Information
Overview .............................................................................................. 24
General Operating Information .......................................................24
The Keypad .........................................................................................24
The Display and Menus ..................................................................... 25
Tubes and Chambers.........................................................................27
Sample Dilution Techniques ............................................................27
General information
Packaging and Delivery ....................................................................28
General Precautions .......................................................................... 28
Safety Precautions ............................................................................ 28
Limits of Liability ...............................................................................29
Specifications ....................................................................................29
CE .........................................................................................................30
IP67 ...................................................................................................... 30
Warranty .............................................................................................30
Register Your Meter...........................................................................30
Trouble Shooting Guide
Error Messages ..................................................................................31
Calibration ..........................................................................................31
Stray Light ..........................................................................................31
Troubleshooting Guide ......................................................................32
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DC1500 Chlorine & Bromine DPD Tablet Kit
Kit Contents
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
1 Water Sample Collecting Bottle 0688
1 1500 Colorimeter for Chlorine DPD 27926-CL
1 USB Wall Adapter 1721
1 USB Cable 1720
1 DC1500-CL Chlorine Colorimeter,
DPD Tablet Manual
1 DC1500-CL Chlorine Colorimeter,
DPD Tablet Quick Start Guide
*WARNING: Reagents marked with an * are considered to be potential health
hazards.
www.lamotte.com.
reagent label, in the contents
that follows or precedes the four digit code number. For example if code is
4450WT-H, search 4450. To obtain a printed copy, contact LaMotte by e-mail,
phone or fax.
To view or print a Safety Data Sheet (SDS) for these reagents go to
Search the four digit reagent code number listed on the
list or in the test procedures. Omit any letter
3240-MN-CL
3240-QG-CL
Emergency information for all LaMotte reagents is available from Chem-Tel
(US, 1-800-255-3924) (International, call collect, 813-248-0585).
To order individual reagents or test kit components, use the specified code
number.
Accessories
DESCRIPTION CODE
Test Tubes, with Caps 0290-6
Replacement Chamber 3-0038
USB Cable 1720
USB Wall Adapter 1721
Car Charger 5-0132
5
TEST METHODS SPECIFICATIONS
APPLICATION
Drinking water supplies and distribution systems, swimming pool and
spas, sewage and chlorinated waste waters, process waters and sanitizing
solutions.
RANGE
0 to 4.0 ppm Chlorine (may be extended by dilution)
0 to 7.0 ppm Bromine (may be extended by dilution)
METHOD
In the absence of Iodide, Free Available Chlorine reacts instantly with the
buffered diethyl-p-phenylenediamine indicator (DPD) to produce a pink-red
color in proportion to the amount of chlorine present. Subsequent addition of
potassium iodide produces a rapid color response from the combined forms
of chlorine (chloramines). In buffered samples, bromine reacts with disthylp-phenylene diamine (DPD) to produce a pink-red color in proportion to the
concentration of bromine present.
HANDLING & PRESERVATION
Chlorine and bromine in aqueous solutions, particularly weak solutions, are
not stable. Exposure to sunlight or agitation will accelerate the reduction of
chlorine and bromine. For chlorine samples, fill sample containers to the top
and cap tightly. Analyze samples as soon as possible after collection. Samples
to be analyzed for bromine cannot be preserved or stored.
INTERFERENCES
The only interfering substance likely to be encountered is oxidized
manganese. The extent of this interference can be determined by treating a
sample with sodium arsenite to destroy the chlorine or bromine present, so
that the amount of interference can be estimated. Chlorine, bromine, and
iodine will give a positive result and should be considered an interference
unless the test is being performed specifically for that parameter.
CALIBRATION
The colorimeter is precalibrated. In order to comply with NPDWR or NPDES
reporting regulations, the calibration should be checked periodically by using
a set of reference standards including a 0 mg/L blank and 0.3, 1.0, and 3.5
mg/L chlorine. To prepare these standards, a LaMotte 1000 mg/L standard
chlorine equivalent solution (Code 3858) is available. Consult with your local
regulatory agency to determine standardization frequency.
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ANALYSIS - CHLORINE
PROCEDURE – FREE CHLORINE
1. Fill the Water Sample Collecting
Bottle (0688) with sample
water.
Chlorine
2. Press and hold until
colorimeter turns on.
3. Press
ENTER
to select Testing
Menu.
4. Scroll to and select 025 Chlorine
T DPD from menu.
Main Menu
Testing Menu
Editing Menu
12:00:00 001/500
All Tests
015 Bromine L DPD
016 Bromine T DPD
024 Chlorine L DPD
025 Chlorine T DPD
12:00:00 001/500
025 Chlorine T DPD
Scan Blank
Scan Sample
12:00:00 001/500
5. Rinse a clean tube (0290) with
sample water. Fill to the 10 mL
line with sample. Cap and wipe
dry.
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6. Insert tube into chamber, close
lid and select Scan Blank.
Chlorine
7. Remove tube from colorimeter.
Add one *Chlorine DPD #1
Instrument Grade Tablet
(6903A).
Cap tube and shake for 10
seconds. Invert slowly 5 times.
Solution will turn pink if free
chlorine is present.
8. Immediately insert tube into
chamber. Close lid. Select Scan
Sample. Record result as Free
Chlorine.
0.99 ppm
Scan BLank
Scan Sample
12:00:00 001/500
025 Chlorine T DPD
PROCEDURE – COMBINED CHLORINE
9. Remove tube from colorimeter.
Add one *Chlorine DPD #3
Instrument Grade Tablet
(6197A).
Cap tube and shake for 10
seconds. Invert slowly 5 times.
An increase in color represents
combined chlorine.
NOTE: For wastewater samples, Standard Methods for the Examination of Water and
Wastewater recommends waiting 2 minutes for full color development when testing
total chlorine.
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10. Insert tube into chamber, close
lid and select Scan Sample.
Record result as Total Chlorine
(Monochloramine, Dichloramine,
and Nitrogen Trichloride)
present in the water sample.
11. Subtract free chlorine reading from total chlorine reading to obtain
concentration of combined chlorine.
Chlorine
12. Press to turn off the colorimeter or press
EXIT
to exit to a
previous menu or make another menu selection.
Levels of chlorine about 6 mg/L will cause a bleaching effect on the DPD
indicator, and may give a false indication that no chlorine is present. If if is
possible that the chlorine concentration is greater than 6 mg/L, perform test
on a diluted sample and multiply the result by appropriate dilution factor.
CAUTION: DO NOT leave reacted samples in test tubes. Discard sample and
thoroughly rinse tubes. If allowed to remain, DPD wil stain tubes, signigicantly
impairing the operation of the colorimeter. If necessary, acid wash, and
vigorously clean glassware with test tube brush and detergent.
NOTE: For the most accurate results, samples over 6 ppm chlorine should be
diluted with chlorine demand free water and re-tested.
NOTE: The meter will remember the last scanned blank reading. It is not
necessary to scan a blank each time the test is performed. To use the
previous blank reading, instead of scanning a new one, scroll to Scan Sample
and proceed. For the most accurate results, the meter should be blanked
before each test and the same tube should be used for the blank and the
reacted sample.
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ANALYSIS - BROMINE
PROCEDURE
1. Fill the Water Sample Collecting
Bottle (0688) with sample
Bromine
water.
2. Press and hold until
colorimeter turns on.
3. Press
ENTER
to select Testing
Menu.
4. Scroll to and select 016
Bromine T DPD from menu.
Main Menu
Testing Menu
Editing Menu
12:00:00 001/500
All Tests
015 Bromine L DPD
016 Bromine T DPD
024 Chlorine L DPD
025 Chlorine T DPD
12:00:00 001/500
016 Bromine T DPD
Scan Blank
Scan Sample
12:00:00 001/500
5. Rinse a clean tube (0290) with
sample water. Fill to the 10 mL
line with sample. Cap and wipe
dry.
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