LaMotte DC1500 PHOSPHATE User manual

DC1500 PHOSPHATE
Phosphate Colorimeter Kit
Code 3242
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CONTENTS
DC1500 Phosphate Kit
Kit Contents.......................................................................................... 5
Accessories .......................................................................................... 5
Test Method Specifications
Introduction.......................................................................................... 6
Application............................................................................................ 6
Range..................................................................................................... 6
Method .................................................................................................. 6
Handling & Preservation .................................................................... 6
Interferences........................................................................................ 6
Analysis
Phosphate............................................................................................. 7
Calibration
Standards ............................................................................................. 9
Calibration Procedure......................................................................... 9
Set Up
Setting the Clock ...............................................................................13
Logging Data ......................................................................................14
Factory Setup.....................................................................................15
Setting Power Save ...........................................................................15
Setting Backlight Time .....................................................................16
Selecting A Language .......................................................................17
Looping Menus...................................................................................18
Computer Connection
Output..................................................................................................19
Computer Connection.......................................................................19
WaterLink Connect.............................................................................19
Battery
Battery/AC Operation........................................................................19
Battery Replacement........................................................................20
Maintenance
Cleaning ..............................................................................................20
Repairs ................................................................................................20
Meter Disposal ...................................................................................21
General Operating Information
Overview..............................................................................................21
General Operating Information .......................................................21
The Keypad .........................................................................................22
The Display and Menus .....................................................................22
Tubes and Chambers.........................................................................24
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Sample Dilution Techniques ............................................................25
General information
Packaging and Delivery ....................................................................25
General Precautions..........................................................................25
Safety Precautions............................................................................26
Limits of Liability ...............................................................................26
Specifications ....................................................................................27
CE .........................................................................................................28
IP67......................................................................................................28
Warranty .............................................................................................28
Register Your Meter...........................................................................28
Trouble Shooting Guide
Error Messages ..................................................................................29
Calibration ..........................................................................................29
Stray Light ..........................................................................................29
Troubleshooting Guide......................................................................30
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DC1500 PHOSPHATE KIT
Kit Contents
QUANTITY CONTENTS CODE
2 x 60 mL *Phosphate Acid Reagent V-6282-H
10 g *Phosphate Reducing Reagent *V-6283-D
1 Spoon, 0.1 g, plastic 0699
1 Water Sample Collecting Bottle 0688
1 Pipet, 1.0 mL, plastic 0354
1 Colorimeter Tubes, w/caps, set of 6 0290-6
1 1500 Colorimeter for Phosphate 27926-PH
1 USB Wall Adapter 1721
1 USB Cable 1720-01
1 DC1500-PH Phosphate Colorimeter, Manual 3242-MN
1 DC1500-PH Phosphate Colorimeter,
Quick Start Guide
3242-QG
To order individual reagents or test kit components, use the specifiedcode
number.
Accessories
DESCRIPTION CODE
Test Tubes, with Caps 0290-6
Replacement Chamber 3-0038
USB Cable 1720-01
USB Wall Adapter 1721
Car Charger 5-0132
WARNING: Only use the USB cable (code 1720-01) that is supplied with the kit.
Make no substitutions.
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TEST METHODS SPECIFICATIONS
INTRODUCTION
Phosphorus is an important nutrient for aquatic plants. The amount found
in water is generally not more than 0.1 ppm unless the water has become
polluted from waste water sources or excessive drainage from agricultural
areas. When phosphorus is present in excess of the concentrations required
for normal aquatic plant growth, a process called eutrophication takes place.
This creates a favorable environment for an increase in algae and weed
nuisances. When algae cells die, oxygen is used in the decomposition and fish
kills often result. Rapid decomposition of dense algae scums with associated
organisms give rise to foul odors and hydrogen sulfide gas.
APPLICATION
Drinking, surface and saline waters; domestic and industrial wastes (Method
based on reactions that are specific for orthophosphate).
RANGE
0 to 3.0 ppm Orthophosphate (Range can be extended by dilution.)
METHOD
Ammonium molybdate and antimony potassium tartrate react in a
filtered acid medium with dilute solution of PO43- to form an antimony-
phosphomolybdate complex. This complex is reduced to an intense blue
colored complex by ascorbic acid. The color is proportional to the amount
of phosphate present. (Only orthophosphate forms a blue color in this
test.) Polyphosphates (and some organic phosphorus compounds) may be
converted to the orthophosphate form by sulfuric acid digestion. Organic
phosphorus compounds may be converted to the orthophosphate form by
persulfate digestion.
HANDLING & PRESERVATION
If benthic deposits are present in the area being sampled, great care should
be taken not to include these deposits. If the analysis cannot be performed
the same day of collection, the sample should be preserved by the addition
of 2 mL of concentrated sulfuric acid or 40 mg mercuric chloride per liter and
refrigerated at 4°C.
INTERFERENCES
1. No interference from copper, iron, or silicate at concentrations many
times the
concentration of sea water. However, high iron concentrations can
cause precipitation
and subsequent loss of phosphorus.
2. Salt error for samples ranging from 5% to 20% salt content was found to
be less than 1%.
3. Mercuric chloride, HgCl2, when used as the preservative, interferes
when the chloride levels are low (less than 50mg/L). This interference
is overcome by spiking samples with a minimum of 50 mg/L of sodium
chloride.
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ANALYSIS
PROCEDURE
1. Fill the Water Sample Collecting
Bottle (0688) with sample
water.
2. Press and hold until
colorimeter turns on.
Main Menu
Testing Menu
Editing Menu
12:00:00 001/500
3. Press
ENTER to select Testing
Menu.
All Tests
081 Phosphate LR
12:00:00 001/500
4. Scroll to and select 081
Phosphate LR from menu.
081 Phosphate LR
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.
Analysis
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6. Insert tube into chamber, close
lid and select Scan Blank.
7. Remove tube from colorimeter.
Use 1.0 mL pipet (0354) to
add 1.0 mL of *Phosphate Acid
Reagent (V-6282). Cap and mix.
8. Use the 1.0 g spoon (0699) to
add one measure of *Phosphate
Reducing Reagent (V-6283).
9. Cap and shake until powder
dissolves. Wait 5 minutes for
full color development. Solution
will turn blue if phosphates are
present. Wip tube dry.
05:00
10. Insert tube into chamber. Close
lid. Select Scan Sample. Record
result as Ammonia-nitrogen.
081 Phosphate LR
0.99 ppm
Scan BLank
Scan Sample
12:00:00 001/500
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
Analysis
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before each test and the same tube should be used for the blank and the
reacted sample.
NOTE: For the best possible results, carry a reagent blank through the
procedure.
After scanning the blank, perform the test procedure on clear,
colorless,
distilled or deioized water. Subtract results of regent blank from all
subsequent test results.
CALIBRATION
STANDARDS
The meter should be calibrated with ortho phosphate standards. The
calibration should be done with a distilled or deionized water blank and
one phosphate standard of known concentration. The concentration of the
calibration standard should be similar to the expected concentration of the
sample that will be tested.
CALIBRATION PROCEDURE
1. Press and briefly hold to
turn the meter on. The LaMotte
logo screen will appear for about
3 seconds and the Main Menu
will appear.
Main Menu
Testing Menu
Editing Menu
12:00:00 001/500
2. Press
ENTER to select Testing
Menu.
All Tests
081 Phosphate LR
12:00:00 001/500
3. Scroll to and select 081
Phosphate LR from menu.
081 Phosphate LR
Scan Blank
Scan Sample
12:00:00 001/500
Calibration
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4. Rinse a clean tube (0290)
three times with the phosphate
standard. Fill to the 10 mL line
with the phosphate standard.
Cap the tube. Dry the tube with a
lint-free cloth.
5. Insert tube into chamber, close
lid and select Scan Blank.
6. Remove tube from colorimeter.
Use 1.0 mL pipet (0354) to
add 1.0 mL of *Phosphate Acid
Reagent (V-6282). Cap and mix.
7. Use the 1.0 g spoon (0699) to
add one measure of *Phosphate
Reducing Reagent (V-6283).
8. Cap and shake until powder
dissolves. Wait 5 minutes for
full color development. Solution
will turn blue if phosphates are
present. Wip tube dry.
05:00
Calibration
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9. Insert tube into chamber. Close
lid. Select Scan Sample.
081 Phosphate LR
0.99 ppm
Scan BLank
Scan Sample
12:00:00 001/500
10. Press to scroll to
Calibrate.
081 Phosphate LR
0.99 ppm
%T/Abs
Calibrate
12:00:00 001/500
11. Press ENTER to select Calibrate.
A reverse font (light background
with dark characters) will appear
to indicate that the reading can
be adjusted.
081 Phosphate LR
0.99 ppm
, =Edit, ENTER=Save
+ENTER=Default
12:00:00 001/500
12. Press or to
adjust the value shown to the
concentration of the prepared
standard, 1.00 in this example.
NOTE: A maximum adjustment
of 25% is possible.
081 Phosphate LR
1.00 ppm
, =Edit, ENTER=Save
+ENTER=Default
12:00:00 001/500
Calibration
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13. Press ENTER to save the value.
To leave the Calibration
procedure without saving the
adjustment, press EXIT .
Press and ENTER at any
time to return to the default
value.
The calibration has now been
standardized and can be used
for testing. Scroll to Scan Blank
and begin testing.
081 Phosphate LR
1.00 ppm
%T/Abs
Calibrate
12:00:00 001/500
Calibration
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SET UP
SETTING THE CLOCK
Setting the clock allows the correct time and date stamp to be stored with
each reading in the data logger.
1. From the Editing Menu, press
or to scroll to Set
Clock.
Editing Menu
Set Clock
Logging
Factory Setup
Set Power Save
12:00:00 001/500
2. Press
ENTER to select Set Clock.
The year is displayed. Press
or to scroll to the
appropriate character. Press
ENTER to select the character.
The month, day, hour, format
hour, minute, second, AM/PM
will be dislpayed. Repeat for
each.
Set Time
Year: 2000
12:00:00 001/500
3. Press
ENTER to select the final
character. The time and date
will be saved and the meter will
return to the Editing Menu.
Editing Menu
Set Clock
Logging
Factory Setup
Set Power Save
12:00:00 001/500
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LOGGING DATA
The default setting for the data logger is enabled. The meter will log the last
500 data points. The counter in the center bottom of the display will show how
many data points have been logged. The display will show 500+ when the data
logger has exceeded 500 points and the data points are being overwritten.
1. From the Editing Menu, press
or to scroll to
Logging.
Editing Menu
Set Clock
Logging
Factory Setup
Set Power Save
12:00:00 001/500
2. Press
ENTER to select Logging. Logging
Display Test Log
Logging Enabled
Logging Disabled
Erase Log
12:00:00 001/500
3. Press or to scroll to
desired function.
Logging
Display Test Log
Logging Enabled
Logging Disabled
Erase Log
12:00:00 001/500
4. Press
ENTER . The screen will
display Storing... for about 1
second and return to the Editing
Menu.
Editing Menu
Set Clock
Logging
Factory Setup
Set Power Save
12:00:00 001/500
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FACTORY SETUP
The Factory Setup menu is used in manufacturing of the colorimeter. This
menu is not for use by the operator in the field.
SETTING POWER SAVE
The power saving Auto Shutoff feature will turn the meter off when a button
has not been pushed for a set amount of time. The default setting is disabled.
To change the setting:
1. From the Editing Menu, press
or to scroll to Set
Power Save.
Editing Menu
Set Clock
Logging
Factory Setup
Set Power Save
12:00:00 001/500
2. Press
ENTER to select Set Power
Save.
Set Power Save
Disable
5 Minutes
15 Minutes
30 Minutes
12:00:00 001/500
3. Press or to scroll to
desired function.
Set Power Save
Disable
5 Minutes
15 Minutes
30 Minutes
12:00:00 001/500
4. Press
ENTER . The screen will
display Storing.... for about 1
second and the meter will retun
to the Editing Menu.
Editing Menu
Set Clock
Logging
Factory Setup
Set Power Save
12:00:00 001/500
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SETTING THE BACKLIGHT TIME
The backlight illuminates the display for enhanced viewing. The default setting
is 10 seconds. If Button Control is chosen the backlight button on the key pad
will act as an on/off switch and the backlight will remain on or off when the
meter is being used. When one of the other settings – 10, 20 or 30 seconds –
is chosen, the display will be illuminated for the specified amount of time after
any button is pressed.
NOTE: The backlight feature uses a significant amount of power. The longer
the backlight is on, the more frequently the battery will have to be charged if
the USB/Wall Adapter is not being used.
1. From the Editing Menu, press
or to scroll to
Backlight Time.
Editing Menu
Logging
Factory Setup
Set Power Save
Set Backlight Time
12:00:00 001/500
2. Press
ENTER to select Set
Backlight Time.
Set Backlight Time
Button Control
10 seconds
20 seconds
30 seconds
12:00:00 001/500
3. Press or to scroll to
desired option.
Set Backlight Time
Button Control
10 seconds
20 seconds
30 seconds
12:00:00 001/500
4. Press
ENTER . The screen will
display Storing... for about 1
second and the meter will return
to the Editing Menu.
Editing Menu
Logging
Factory Setup
Set Power Save
Set Backlight Time
12:00:00 001/500
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SELECTING A LANGUAGE
There are seven languages available: English, Spanish, French, Portuguese,
Italian, Chinese, and Japanese.
1. From the Editing Menu, press
or to scroll to
Select Language.
Editing Menu
Factory Setup
Set Power Save
Set Backlight Time
Select Language
12:00:00 001/500
2. Press
ENTER to select Select
Language.
Select Language
English
Spanish
French
Portugese
12:00:00 001/500
3. Press or to scroll to
desired language.
Select Language
English
Spanish
French
Portugese
12:00:00 001/500
4. Press
ENTER . The screen will
display Storing... for about 1
second and the meter will return
to the Editing Menu.
Editing Menu
Set Power Save
Set Backlight Time
Bluetooth Menu
Select Language
12:00:00 001/500
NOTE: If meter unintentionally switches to another language, use the
procedure above to reset the meter to the desired language. For example, to
reset the meter to English:
Turn meter on.
1. Press one time. Press ENTER .
2. Press five times. Press ENTER .
3. Press
ENTER .
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LOOPING MENUS
Long menus, such as the Tsting Menu, incorporate a looping feature which
allows the user to quickly reach the last choice in the menu from the first
choice. In a looping menu the last choices in the menu are above the first
choice and scrolling upward moves through the menu in reverse order.
Scrolling downward moves through the menu from first choice to last but
the menu starts over following the last choice. So all menu choices can be
reached by scrolling in either direction. The diagrams below demonstrate a
looping menu.
AND SO ON AND SO ON AND SO ON
: : : : : : : : :
: : : : : : : : :
THIRD TO LAST LAST CHOICE LAST CHOICE
SECOND TO LAST AND SO ON AND SO ON
LAST CHOICE : : : : : :
TESTING MENU TESTING MENU TESTING MENU
FIRST CHOICE : : : : : :
SECOND CHOICE THIRD TO LAST THIRD TO LAST
THIRD CHOICE SECOND TO LAST SECOND TO LAST
ANOTHER LAST CHOICE LAST CHOICE
12:00:00 001/500 12:00:00 001/500 12:00:00 001/500
AND ANOTHER FIRST CHOICE FIRST CHOICE
AND SO ON SECOND CHOICE SECOND CHOICE
: : : THIRD CHOICE THIRD CHOICE
: : : ANOTHER ANOTHER
LAST CHOICE AND ANOTHER AND ANOTHER
The feature called Looping Menu can be turned on and off in the Editing
Menu. The default setting is ON.
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COMPUTER CONNECTION
OUTPUT
USB
COMPUTER CONNECTION
USB Type A, USB mini B, Order Cable Code 1720.
WATERLINK CONNECT
The meter may be interfaced with any Windows-based 64 bit computer by
using the LaMotte WaterLink Connect program and a USB cable. The program
will store test information and results in a local database, and allow for
exporting this data to a comma separated value (CSV) file. The meter will
send the following data: time/date stamp, name of test, sample value, sample
units, meter name, and location. T
BATTERY
BATTERY/AC OPERATION
The colorimeter may be operated on battery power using a USB wall adapter
or USB computer connection. If using the meter as a bench top unit, use the
wall adapter if possible to extend the battery life. The meter will remain on
when the USB adapter is used.
To charge the battery with the wall adapter, plug the smaller end of the USB
cable (USB mini B connector) into the meter and the larger end of the USB
cable (USB type A connector) into the wall adapter. Plug the wall adapter into
an AC outlet. Reinsert the rubber USB port plug after charging. To charge the
battery from a computer, plug the smaller end of the USB cable (USB mini B
connector) into the meter and the larger end of the USB cable (USB Type A
connector) into a USB port on a computer. The battery icon will show no bars
and flash when the unit first turns on. Then the indicator will indicate the
battery status by showing 0, 1, 2, 3, or 4 bars.
It will take 6 hours to fully charge a low battery. The battery icon will flash
when the battery is charging. The battery icon will show four bars and stop
flashing when it is fully charged. The charging circuit will automatically switch
to a float charge when the battery is fully charged. The charger may remain
connected. Some computers will NOT supply power to their USB ports during
standby operation. The wall adapter will charge the unit continuously.
Storing the meter above ambient room temperature will decrease the battery
charge more quickly than storage at room temperature. If the meter does
not turn on, it means that the battery is at a very low charge. Charging the
battery with the wall adapter in this state may take up to 10 hours. At low
temperatures, approaching 0 °C, the battery will charge more slowly. It will not
charge at all below 0 °C. The battery icon will show no bars and continuously
flash if the battery is getting low but the unit will still operate normally. A
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“Low Battery” message on the status bar of the display will replace the time
when the battery voltage is too low for proper operation and accuracy may
be degraded. A “Shutdown Low Batt” message on the display will appear for
a few seconds before the power is switched off when the battery is too low to
operate the unit. When the battery icon simultaneously flashes bars 1 and 2
followed by bars 3 and 4, it is an indication that the battery is damaged and
technical support should be contacted.
To extend the battery life:
• Shut down the unit with the power switch when not taking
measurements or use the power save option to have the unit
automatically turn off after 5 minutes.
• Store the unit at a moderate temperature.
• Fully charge the battery before storing the unit for extended periods
of time.
• Fully charge the battery at least once per year. Failure to do so may
result in a permanently drained battery.
• Limit backlight use. The unit consumes 3X normal power with the
backlight on. Set the backlight time option to 10 seconds, or select
“Button Control” and keep the backlight off.
BATTERY REPLACEMENT
The lithium ion battery used in this unit should last for many years with
normal use. When it no longer powers the unit long enough to meet testing
requirements it will need to be replaced. Lithium ion batteries that are
properly charged and stored do not usually lose all capacity; they just have
less capacity after hundreds of charge cycles. This unit uses a custom battery
assembly that is only available from LaMotte Company. Battery replacement
must be performed at a LaMotte authorized repair facility. The water
resistant housing of this meter should not be opened by the user. Contact
MAINTENANCE
CLEANING
Clean the exterior housing with a damp, lint-free cloth. Do not allow water
to enter the light chamber or any other parts of the meter. To clean the
light chamber and optics area, point a can of compressed air into the light
chamber and blow the pressurized air into the light chamber. Use a cotton
swab dampened with Windex®window cleaner to gently swab the interior of
the chamber. Do not use alcohol; it will leave a thin residue over the optics
when dry.
REPAIRS
Should it be necessary to return the meter for repair or servicing, pack the
meter carefully in a suitable container with adequate packing material.
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Often a problem can be resolved over the phone or by email. If a return of the
meter is necessary, attach a letter with the return authorization number,
meter serial number, a brief description of problem and contact information
including phone and FAX numbers to the shipping carton. This information
will enable the service department to make the required repairs more effi
ciently.
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