palintest Green Drop Kit User manual

Green Drop Instrument
Instructions

Contents
1. GENERAL INFORMATION
2. KIT CONTENTS
3. TEST PROCEDURES
4. INSTRUMENT OPERATION
4.1 PALINTEST 7500 PHOTOMETER
4.2 PALINTEST 800
MULTIPARAMETER METER
4.3 PALINTEST MICRO 600
DISSOLVED OXYGEN METER
5 REORDERING CODES

1. GENERAL INFORMATION
Thank you for purchasing this Palintest product.
Palintest instruments and reagents are renowned
as being simple to use, whilst providing rapid and
reliable results for the testing of water. Our
instruments are of the highest quality and fully
waterproof.
Palintest’s experience, built-up over the last 50
years, is the reason why our instruments and
reagents are used in laboratories, treatment plants,
leisure facilities and industrial premises throughout
the world.
Our products are packaged carefully and the
product should reach you in the state it left our
factory; if this product has reached you in a state
that is less than satisfactory, please contact the
transportation company.
This booklet describes the best way to use Palintest
products, and provides instructions for the range of
water tests that can be performed using this
instrument.
Palintest instruments are calibrated for
Palintest reagents. To guarantee the high
accuracy and performance that our instruments
give, you must ensure that only Palintest
reagents are used with Palintest instruments.
Failure to do so can lead to erroneous results.

2. KIT CONTENTS
This kit contains:
Palintest 7500 Photometer
Palintest 800 Multiparameter meter
Palintest Micro 600 Dissolved Oxygen
meter
100ml sample container
10ml plastic syringe
Test tube brush
Crush Rods
Zero Oxygen Calibration Solution
pH buffers for Calibration
1413uS/cm Conductivity Calibration
Solution
100 Nitricol tablets (for Nitrate/Nitrite
testing)
50 Phosphate LR #1 tablets
50 Phosphate LR #2 tablets
50 Ammonia #1 tablets
50 Ammonia #2 tablets
Instrument Instructions
Palintest photometer methods

3. TEST PROCEDURES
Blanks and Samples
Palintest photometers use a BLANK tube to set the
instrument to blank and a SAMPLE tube to take the
reading.
A BLANK tube is a test tube filled with untreated
water sample. A SAMPLE tube is a test tube
containing the sample to which reagents have been
added in accordance with the test procedure
described.
The blank setting is held in memory. It is not
necessary to reset the blank each time a reading is
taken if the water samples are similar and the
conditions of use are the same. The blank setting
can be confirmed if necessary by taking a test
reading on the blank tube.
For detailed instructions on individual test
methods, consult the Palintest photometer
methods instructions

4. INSTRUMENT OPERATION
4.1. Palintest 7500 Photometer
This set of instructions is a quick guide to using
your photometer. For more details on the full range
of functions that are available on your 7500
Photometer, please contact [email protected].
4.1.1 General Photometer Operation
The photometer is controlled by a simple intuitive
menu system.
The highlight indicates the active line or section of
the screen.
The and keys move the highlight through the
menu choices.
The and keys allow selection of options.
The flashing cursor in the ‘Options’ menu at the
bottom of the screen indicates the action which
will occur if the [OK] button is pressed.

4.1.2 Operating Modes
The photometer has two distinct operating modes -
the PHOTOMETER mode and the SYSTEM mode.
The PHOTOMETER mode is the normal operating
mode for taking photometer readings. This mode is
engaged automatically when the instrument is
turned on by pressing the key.
In order to conserve battery life the photometer will
switch off automatically after use. The switch off
period is five minutes in normal use, but may be
adjusted in System mode.
The SYSTEM mode is used to set the system
options. This mode is engaged when the
photometer is turned on using the key and then
selecting 'System' using the and keys and
pressing [OK].
Scroll through the menu box to view all the options
available.

4.1.3 Taking Photometer Readings
The photometer is very simple to use. Screen
prompts guide the user towards the test result. The
following sections describe how to get the best out
of the system.
4.1.4 Program Numbers and Test
Instructions
Each test is identified by a separate program
number or named key. Program numbers are
shown in Palintest photometer methods
instructions.
For some tests, a choice of different programs is
offered in order to give the option of the result in
different forms (eg for Nitrate - NO3or Nitrate
Nitrogen - NO3-N).
In certain methods, the test can be continued to a
further stage - for example in the tests free chlorine
and total chlorine. This is allowed for in the
programming of the photometer. In these tests,
once the first stage result is obtained, the ‘Follow-
On’ option may be selected to progress the test to
the next program stage or stages. The result will
be calculated automatically.

These continuation programs have their own
program number for reference purposes although
direct access to these programs may be restricted.
4.1.5 Sample Dilution
The photometer has a sample dilution option. This
enables a factor to be entered when samples have
been diluted to bring them within the measuring
range of the test. For example if a five times dilution
of the sample has been made, then the dilution
factor x5 should be entered. The photometer will
multiply the observed result by this factor so that
the correct result for the original sample is
displayed.
This option may be used in conjunction with the
Palintest Dilution Tube which enables dilutions of
x2, x3, x4, x5 and x10 to be made; or with Palintest
syringes which enable higher dilutions factors.
Higher dilution factors may be entered subject to
the limitation of the number of digits available on
the result display for each test. When the display
capabilities are exceeded, the symbol [xxx] will
appear on the result display.
The sample should not be diluted prior to carrying
out a pH test, or Transmittance or Absorbance
reading.

4.1.6 Getting the Best Results
Success in obtaining accurate and consistent test
results will depend on the care with which test
procedures are carried out. Always follow the test
instructions carefully and observe the stated
standing periods and temperature conditions where
applicable.
Wipe test tubes free from condensation before
placing in the photometer. Test tubes should
always be kept in a clean condition. Wash and dry
tubes carefully after use. Dirty tubes may be
soaked in weak detergent solution if necessary.
Tubes which become stained or scratched in use
should be replaced.
Success in obtaining accurate and consistent test
results will depend on the care with which test
procedures are carried out. Always follow the test
instructions carefully and observe the stated
standing periods and temperature conditions where
applicable.
Wipe test tubes free from condensation before
placing in the photometer. Test tubes should
always be kept in a clean condition. Wash and dry
carefully after use. Dirty tubes may be soaked in
weak detergent solution if necessary. Tubes which

become stained or scratched in use should be
replaced.
Taking Test Readings
1 Press key.
The instrument displays the ‘Choose a Test’ menu
box, with the last test program used highlighted as
the active line.
The cursor will flash on the [OK] symbol of
the ‘options menu' at the bottom of the screen.
Press [OK] to accept this program.
2 To choose a different test program, either
use the and keys to scroll through the menu
options, or use the numeric keys to enter the Phot
number of the desired test.
The four most recently used tests are listed at the
top of the ‘Choose a Test’ screen for convenience.
Press [OK] to accept the selected test.

3 If the sample number option is pre-selected
(see system menu for options), then the
following display will appear, for example :-
Enter or confirm the sample number (up to
10 digits), then press [OK].
4 If the dilution factor option is pre-selected
(see system menu for options), then the following
display will appear:-
Press [OK] to accept the default value (x1,
no dilution), or key in new dilution factor then press
[OK].
5 The following display will now appear:-
1024
Sample Number
OK
x 1
Dilution Factor
OK
Chlorine-Free / 5
Phot 007
Insert Blank
Choose a Test
OK

Place a BLANK TUBE in the test chamber,
then press [OK].
6 The instrument will be set automatically, and
after a few seconds the following display will
appear:-
Place SAMPLE TUBE in the test chamber,
then press [OK].
7 The instrument will take the reading and
display the result as follows, for example :-
The following symbols indicate the result is out of
test range:-
Result is higher than range >>
Result is lower than range <<
Chlorine-Free / 5
Phot 007
Insert Sample
Blank - Choose a Test - Time
OK
Chlorine-Free / 5
Phot 007
1.0
0
mg/l Cl
2

8 The ‘options menu' offers the choice to :-
‘Choose a Test’ - return to the menu of test
programs and select another test
‘Read’ - read further sample tubes of the
currently selected test
‘Blank’ - re-blank the instrument
‘Follow-On’ - carry out a continuation test if
available.
Continuation Tests (Certain Tests Only)
1 Select ‘Follow-On’ and press [OK] during the
result display period of the foregoing test stage.
The photometer applies the previously entered
sample number and dilution factor, and the ‘Insert
Sample’ screen will appear.
Place SAMPLE tube in the test chamber,
then press [OK].
2 The instrument will take the reading and
calculate the result from the combination of
Chlorine-Total / 5
Phot 008
1.5
0
mg/l Cl
2
Choose a Test Read Blank

readings (where appropriate). The result will be
displayed as follows, for example :-
3 During the display period, similar options are
available as at the end of a normal test program.
Select ‘Return’ from the ‘options menu' to take the
program back to the start of the first stage of a
multiple test procedure to enable further samples to
be tested for the same parameters.
Note that some continuation test procedures
involve a standing period. The photometer may
switch off automatically during this time. To avoid
the instrument switching off, set for continuous
operation or use the timer function to time any
standing period. The timer will over-ride the auto
switch off function.
Favourite Tests List
The four most recently used tests are listed at the
top of the 'Choose a Test' screen for convenience.
Expressing Different Chemical Forms
If the test result can be expressed in different
chemical forms, the chemical symbol will have
flashing and to indicate this. Use the keys to
step through the options available.

Note that the log stores the result in the primary
form.
4.1.6 Reading in Transmittance and Absorbance
When taking readings in Transmittance (%T) or
Absorbance mode, use the and keys to step
through the wavelengths until the required
wavelength is reached.
4.1.7 Care and Maintenance
The photometer is designed to give long and
trouble-free operation. Care must be taken,
however, to avoid test solutions being spilt over the
instrument, and to prevent contamination of the
instrument. Spillages or moisture should be wiped
off immediately with a dry cloth. On no account
should solvents or abrasive materials be used to
clean the instrument. Care should be taken to keep
the test chamber clean.
You can check the performance of your instrument
with the check standards provided in this kit. Each
standard is characterised in %T at particular
wavelengths and to check your instrument, simply
read each standard using the transmittance (%T)
setting on your photometer and compare the %T
value on the certificate with that shown on screen
(ensuring you are comparing the %T value on the

certificate with the correct %T value on the
certificate, i.e. the wavelength is the same on both
the photometer screen and the certificate).
For example,
Standard B is characterised at 450 and 500nm.
Therefore when measuring the standard using the
photometer, ensure the result on screen relevant
compared to the certificate value. In the image
below, the %T value on screen would be compared
to the %T value on the certificate (standard D, at
600nm).

4.1.8 Cleaning the Optics
Any build-up of dirt or deposits may interrupt light
transmission and affect readings.
To clean the optics, undo the two screws to remove
the optics base plate. Gently clean the internal
surfaces of the optics with a soft, non-abrasive
cloth. Deposits may be removed with a slightly
dampened cotton bud. Replace the optics base
plate and re-fasten the screws.
The photometer is fitted with long-life light sources
and contains no user-serviceable components.
If the instrument requires servicing or repair, this
can be arranged through our Technical Services
Department.
4.1.9 Replacing the Batteries
The battery compartment in the base of the
instrument is secured by four screws. To replace
the batteries, remove the cover and install the
batteries, observing the correct polarity as
indicated. Use 3 x 1.5V 'AA’ alkaline batteries or
equivalent.
To avoid corrosion damage through leakage,
remove batteries from the instrument if it is to be
stored or left unused for a long period of time.

4.1.10 Guarantee
Palintest photometers are guaranteed for a period
of two years from the date of purchase, excluding
accidental damage or damage caused by
unauthorised repair or misuse. The guarantee
specifically excludes damage caused by water or
by ingress of chemical solutions. Should repair be
necessary, contact our Technical Services
Department quoting the serial number shown on
the back of the instrument. This guarantee does
not affect your statutory rights.

4.2. Palintest 800 Multiparameter Meter
This set of instructions is a quick guide to using
your multiparameter meter, capable of measuring
pH, conductivity/TDS and temperature. For more
details on the full range of functions that are
available on this instrument, please contact
[email protected].