Lovibond PM600 User manual

Instruction manual
Photometer-System
P600
GB

1
PM600_1c 03/2013
Safety precautions
CAUTION
Reagents are formulated exclusively for chemical analysis and must not be used for
any other purpose. Reagents must not get into the hands of children. Some of the
reagents contain substances which are not entirely harmless environmentally. Be
aware of the ingredients and take proper care when disposing of the test solution.
CAUTION
Please read this instruction manual before unpacking, setting up or using the
photometer. Please read the method description completely before performing
the test. Be aware of the risks of using the required reagents by reading the MSDS
(Material Safety Data Sheets). Failure could result in serious injury to the operator or
damage to the instrument.
MSDS: www.lovibond.com
CAUTION
The accuracy of the instrument is only valid if the instrument is used in an
environment with controlled electromagnetic disturbances according to DIN 61326.
Wireless devices, e.g. wireless phones, must not be used near the instrument.
Revision_1c 03/2013

2PM600_1c 03/2013
Table of contents
Part 1 Methods ................................................................................................... 5
1.1 Table of Methods ..................................................................................................... 6
Alkalinity-total (Alkalinity-m, m-Value)............................................................................... 8
Alkalinity-total HR (Alkalinity-m HR, m-Value HR) ............................................................ 10
Bromine.......................................................................................................................... 12
Chlorine.......................................................................................................................... 14
Chlorine with tablet........................................................................................................ 16
differentiated determination (free, combined, total) .................................................... 16
free Chlorine............................................................................................................... 18
total Chlorine.............................................................................................................. 19
Chlorine HR with tablet................................................................................................... 20
differentiated determination (free, combined, total) .................................................... 20
free Chlorine............................................................................................................... 22
total Chlorine.............................................................................................................. 23
Copper with tablet.......................................................................................................... 24
differentiated determination (free, combined, total) .................................................... 25
free Copper ................................................................................................................ 26
total Copper ............................................................................................................... 27
CyA-TEST (Cyanuric acid) ................................................................................................ 28
Hardness, Calcium with Calcio tablet .............................................................................. 30
Iron with tablet............................................................................................................... 32
Ozone............................................................................................................................. 34
in presence of Chlorine ............................................................................................... 36
in absence of Chlorine ................................................................................................ 38
Phosphate, ortho LR with tablet...................................................................................... 40
pH value with tablet........................................................................................................ 42
Sodium hypochlorite....................................................................................................... 44
1.2 Important notes........................................................................................... 46
1.2.1 Correct use of reagents .................................................................................. 46
1.2.2 Cleaning of vials and accessories for analysis .................................................. 46
1.2.3 Guidelines for photometric measurements ..................................................... 46
1.2.4 Sample dilution techniques............................................................................. 48
1.2.5 Correcting for volume additions ..................................................................... 48

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PM600_1c 03/2013
Part 2 Instrument Manual ......................................................................... 49
2.1 Operation..................................................................................................... 50
2.1.1 Set up ............................................................................................................ 50
2.1.2 Saving data – Important Notes ....................................................................... 50
2.1.3 Replacement of batteries................................................................................ 50
2.1.4 Instrument (explosion drawing) ...................................................................... 51
2.2 Overview of function keys ......................................................................... 53
2.2.1 Overview........................................................................................................ 53
2.2.2 Displaying time and date ................................................................................ 54
2.2.3 User countdown............................................................................................. 54
2.2.4 Display backlight ............................................................................................ 54
2.3 Operation mode .......................................................................................... 55
2.3.1 Automatic switch off...................................................................................... 55
2.3.2 Selecting a method ........................................................................................ 55
2.3.2.1 Method Information (F1) ................................................................................ 55
2.3.2.2 Chemical Species Information......................................................................... 56
2.3.3 Differentiation................................................................................................ 56
2.3.4 Performing Zero ............................................................................................. 56
2.3.5 Performing Tests............................................................................................. 57
2.3.6 Ensuring reaction periods (countdown)........................................................... 57
2.3.7 Changing chemical species............................................................................. 58
2.3.8 Storing results ................................................................................................ 58
2.3.9 Printing results (Infra-Red Interface Module) (optional).................................... 59
2.3.10 Perform additional measurements .................................................................. 59
2.3.11 Selecting a new method................................................................................. 60
2.3.12 Measure absorbance ...................................................................................... 60
2.4 Photometer settings: Table of Mode Functions ........................................ 61
2.4.1 blank because of technical requirements ........................................................ 62
2.4.2 Instrument basic settings 1 ............................................................................. 62
2.4.3 Printing of stored results................................................................................. 66
2.4.4 Recall / delete stored results............................................................................ 71
2.4.5 Calibration ..................................................................................................... 76
2.4.6 Lab function................................................................................................... 82
Profi-Mode..................................................................................................... 82
One Time Zero ............................................................................................... 83
2.4.7 User operations .............................................................................................. 84

4PM600_1c 03/2013
User method list ............................................................................................. 84
User Concentration Methods.......................................................................... 86
User Polynomials ............................................................................................ 88
Delete User Methods...................................................................................... 91
Print Data of User Methods ............................................................................ 92
Initialise User Method System ......................................................................... 93
2.4.8 Special functions ............................................................................................ 94
Langelier Saturation Index .............................................................................. 94
2.4.9 Instrument basic settings 2 ............................................................................. 96
2.4.10 Instrument special functions /service............................................................... 97
2.5 Data transfer................................................................................................ 98
2.5.1 Data Printing .................................................................................................. 98
2.5.2 Data transfer to a personal computer ............................................................. 98
2.5.3 Internet Updates ............................................................................................ 98
Part 3 Enclosure................................................................................................ 99
3.1 Unpacking.................................................................................................. 100
3.2 Delivery contents ...................................................................................... 100
3.3 blank because of technical requirements................................................ 100
3.4 Technical data ............................................................................................ 101
3.5 Abbreviations ............................................................................................ 102
3.6 Troubleshooting ........................................................................................ 103
3.6.1 Operating messages in the display / error display .......................................... 103
3.6.2 General ........................................................................................................ 105
3.7 Declaration of CE-Conformity .................................................................. 106

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PM600_1c 03/2013
Part 1
Methods

6PM600_1c 03/2013
1.1 Table of Methods
* = free, combined, total; T = tablet; LR = low range
No. Analysis Reagent Range Displayed
as
Method
[nm]
OTZ Page
30
Alkalinity, total T tablet 5-200 mg/l CaCO3 Acid/Indicator 1,2,5 610 8
31
Alkalinity HR,
total T
tablet 5-500 mg/l CaCO3 Acid/Indicator 1,2,5 610 10
80 Bromine T tablet 0.05-13 mg/l Br2DPD 5530 12
100 Chlorine T * tablet 0.01-6 mg/l Cl2DPD 1,2,3 530 14, 16
103 Chlorine HR T * tablet 0.1-10 mg/l Cl2DPD 1,2,3 530 14, 20
150 Copper T * tablet 0.05-5 mg/l Cu Biquinoline 4560 24
160
CyA-TEST T tablet 0-160 mg/l CyA Melamine 530 28
191 Hardness, Calcium
2T
tablet 0-500 mg/l CaCO3Murexide 4560 30
220 Iron T tablet 0.02-1 mg/l Fe PPST 3560
32
300 Ozone (DPD) T tablet 0.02-2 mg/l O3DPD/Glycine 5530 34
319 Phosphate, T
ortho LR
tablet 0.05-4 mg/l PO4Ammonium-
molybdate
2,3
660 40
330 pH-Value T tablet 6.5-8.4 — Phenolred5560 42
212 Sodium
hypochlorite T
tablet 0.2-16 % NaOCl Potassium
iodide5
530 44

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PM600_1c 03/2013
1.1 Methods
The precision of Lovibond® Reagent Systems (tablets, powder packs and tube tests) is identical
to the precision specified in standards literature such as American Standards (AWWA), ISO
etc.
Most of the data referred to in these standard methods relates to Standard Solutions. Therefore
they are not readily applicable to drinking-, boiler- or waste-water, since various interferences
can have a major influence on the accuracy of the method.
For this reason we don’t state such potentially misleading data.
Due to the fact that each sample is different, the only way to check the tolerances (‘precision’)
is the Standard Additions Method.
According to this method, first the original sample is tested. Then further samples (2 to 4) are
taken and small amounts of a Standard Solution are added, and further results are obtained.
The amounts added range from approximately half, up to double the amount present in the
sample itself.
These supplementary results make it possible to estimate the actual concentration of the
original sample by comparison.
Literature
The reagent formulations are based on internationally recognised test methods. Some are
described in national and/or international guidelines.
Deutsche Einheitsverfahren zur Wasser-, Abwasser- und Schlammuntersuchung1.
Standard Methods for the Examination of Water and Wastewater; 18th Edition, 19922.
Photometrische Analysenverfahren, Schwedt,3.
Wissenschaftliche Verlagsgesellschaft mbH, Stuttgart 1989
Photometrische Analyse, Lange / Vejdelek, Verlag Chemie 19804.
Colorimetric Chemical Analytical Methods, 9th Edition, London5.
Notes for searching:
OTZ (OneTimeZero) switching on and off, see Mode 55, page 83
Alkalinity-m -> Alkalinity, total
Cyanuric acid -> CyA-TEST
Calcium Hardness -> Hardness, Calcium
m-Value -> Alkalinity, total
total Hardness -> Hardness, total
Langelier Saturation -> Mode function 70
Index (Water Balance)

8PM600_1c 03/2013
1.1 Methods
Alkalinity, total = Alkalinity-m =
m-Value
with Tablet
5 – 200 mg/l CaCO3
1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample,
close tightly with the cap.
2. Place the vial in the sample chamber making sure that
the marks are aligned.
3. Press ZERO key.
4. Remove the vial from the sample chamber.
5. Add one ALKA-M-PHOTOMETER tablet straight
from the foil to the water sample and crush the tablet
using a clean stirring rod.
6. Close the vial tightly with the cap and swirl several times
until the tablet is dissolved.
7. Place the vial in the sample chamber making sure that
the marks are aligned.
8. Press TEST key.
The result is shown in the display as total Alkalinity.
prepare Zero
press ZERO
Zero accepted
prepare Test
press TEST
30

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PM600_1c 03/2013
1.1 Methods
Notes:
The terms total Alkalinity, Alkalinity-m, m-Value and Alkalinity to pH 4.3 are identical.1.
For accurate results exactly 10 ml of water sample must be taken for the test.2.
Conversion table:3.
Acid demand to pH 4.3
DIN 38 409 (KS4.3)
German
°dH*
English
°eH*
French
°fH*
1 mg/l CaCO30.02 0.056 0.07 0.1
*Carbonate hardness (reference = Hydrogencarbonate-anions)
Example:
10 mg/l CaCO3= 10 mg/l x 0.056 = 0.56 °dH
10 mg/l CaCO3= 10 mg/l x 0.02 = 0.2 mmol/l
4. CaCO3
°dH
°eH
°fH
°aH

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1.1 Methods
Alkalinity HR, total = Alkalinity-m HR =
m-Value HR
with Tablet
5 – 500 mg/l CaCO3
1. Fill a clean vial (24 mm Ø) with 10 ml of the water
sample, close tightly with the cap.
2. Place the vial in the sample chamber making sure that
the marks are aligned.
3. Press ZERO key.
4. Remove the vial from the sample chamber.
5. Add one ALKA-M-HR PHOTOMETER tablet straight
from the foil to the water sample and crush the tablet
using a clean stirring rod.
6. Close the vial tightly with the cap and swirl several times
until the tablet is dissolved.
7. Press []key.
Wait for a reaction period of 1 minute.
8. Remix the solution.
9. Place the vial in the sample chamber making sure that
the marks are aligned.
10. Press TEST key.
The result is shown in the display as total Alkalinity.
prepare Zero
press ZERO
Zero accepted
prepare Test
press TEST
31
Countdown
1:00
start:

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PM600_1c 03/2013
1.1 Methods
Notes:
For verification of the result look carefully at the bottom of the vial. If a thin yellow layer1.
forms, then mix the vial again. This ensures that reaction is complete. Reread the result.
Conversion table:2.
Acid demand to pH 4.3
DIN 38 409 (KS4.3)
German
°dH*
English
°eH*
French
°fH*
1 mg/l CaCO30.02 0.056 0.07 0.1
*Carbonate hardness (reference = Hydrogencarbonate-anions)
Example:
10 mg/l CaCO3= 10 mg/l x 0.056 = 0.56 °dH
10 mg/l CaCO3= 10 mg/l x 0.02 = 0.2 mmol/l
3. CaCO3
°dH
°eH
°fH
°aH

12 PM600_1c 03/2013
1.1 Methods
Bromine
with Tablet
0.05 – 13 mg/l Br2
1. Fill a clean vial (24 mm Ø) with 10 ml of the water
sample, close tightly with the cap.
2. Place the vial in the sample chamber making sure that
the marks are aligned.
3. Press ZERO key.
4. Remove the vial from the sample chamber and empty it,
leaving a few drops remaining in the vial.
5. Add one DPD No. 1 tablet straight from the foil and
crush the tablet using a clean stirring rod.
6. Add water sample to the 10 ml mark.
7. Close the vial tightly with the cap and swirl several times
until the tablet is dissolved.
8. Place the vial in the sample chamber making sure that
the marks are aligned.
9. Press TEST key.
The result is shown in the display in mg/l Bromine.
prepare Zero
press ZERO
Zero accepted
prepare Test
press TEST
80

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PM600_1c 03/2013
1.1 Methods
Notes:
Vial cleaning:1.
As many household cleaners (e.g. dishwasher detergent) contain reducing
substances,the subsequent determination of Bromine may show lower results. To avoid
any measurement errors, only use glassware free of Chlorine demand.
Preparation: Put all applicable glassware into Sodium hypochlorite solution (0.1 g/l)
forone hour, then rinse all glassware thoroughly with deionised water.
Preparing the sample:2.
When preparing the sample, the lost of Bromine, e.g. by pipetting or shaking, must be
avoided. The analysis must take place immediately after taking the sample.
The DPD colour development is carried out at a pH value of 6.2 to 6.5. The reagent3.
tablet therefore contains a buffer for the pH adjustment. Strong alkaline or acidic water
samples must be adjusted between pH 6 and pH 7 before the reagent is added (use 0.5
mol/l Sulfuric acid resp. 1 mol/l Sodium hydroxide).
Exceeding the measuring range:4.
Concentrations above 22 mg/l Bromine can lead to results showing 0 mg/l.
In this case, the water sample must be diluted with water free of Bromine.
10 ml of the diluted sample should be mixed with the reagent and the measurement
repeated.
Oxidising agents such as Chlorine, Ozone etc. interfere as they react in the same way as5.
Bromine.

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1.1 Methods
Chlorine with Tablet
0.01 – 6 mg/l Cl2
Chlorine HR with Tablet
0.1 – 10 mg/l Cl2
The following selection is shown in the display:
for the differentiated determination of free, combined and
total Chlorine.
for the determination of free Chlorine.
for the determination of total Chlorine.
Select the desired determination with the arrow
keys [ ] and [ ]. Confirm with [ ] key.
Chlorine
>> diff
free
total
>> diff
>> free
>> total
00 1
03 1

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PM600_1c 03/2013
1.1 Methods
Notes:
Vial cleaning:1.
As many household cleaners (e.g. dishwasher detergent) contain reducing substances,
the subsequent determination of Chlorine may show lower results. To avoid any
measurement errors, only use glassware free of Chlorine demand.
Preparation: Put all applicable glassware into Sodium hypochlorite solution (0.1 g/l) for
one hour, then rinse all glassware thoroughly with deionised water.
For individual testing of free and total Chlorine, the use of different sets of glassware is2.
recommended (EN ISO 7393-2, 5.3)
Preparing the sample:3.
When preparing the sample, the lost of Chlorine, e.g. by pipetting or shaking, must be
avoided. The analysis must take place immediately after taking the sample.
The DPD colour development is carried out at a pH value of 6.2 to 6.5. The reagents4.
therefore contain a buffer for the pH adjustment.
Strong alkaline or acidic water samples must be adjusted between pH 6 and pH 7 before
the reagent is added (use 0.5 mol/l Sulfuric acid resp. 1 mol/l Sodium hydroxide).
Exceeding the measuring range:5.
Concentrations above:
10 mg/l Chlorine using tablets (method 100) can lead to results showing 0 mg/l. In this
case, the water sample must be diluted with water free of Chlorine. 10 ml of the diluted
sample should be mixed with the reagent and the measurement repeated.
Turbidity (can lead to errors):6.
The use of the DPD No. 1 tablet (method 100) in samples with high Calcium ion
contents* and/or high conductivity* can lead to turbidity of the sample and therefore
incorrect measurements. In this case, the reagent tablet DPD No. 1 High Calcium should
be used as an alternative. If turbidity does occur after the DPD No. 3 tablet has been
added, this can be prevented by using the DPD No. 1 HIGH CALCIUM tablet and the
DPD No.3 High Calcium tablet.
The DPD No. 1 High Calcium should only be used in combination with the DPD No.3
High Calcium.
* it is not possible to give exact values, because the development of turbidity depends
on the nature of the sample.
If ??? is displayed at a differentiated test result see page 104.7.
Oxidizing agents such as Bromine, Ozone etc. interfere as they react in the same way as8.
Chlorine.

16 PM600_1c 03/2013
1.1 Methods
Chlorine, differentiated determination
with Tablet
0.01 – 6 mg/l Cl2
1. Fill a clean vial (24 mm Ø) with 10 ml of the water
sample, close tightly with the cap.
2. Place the vial in the sample chamber making sure that
the marks are aligned.
3. Press ZERO key.
4. Remove the vial from the sample chamber and empty it,
leaving a few drops remaining in the vial.
5. Add one DPD No. 1 tablet straight from the foil and
crush the tablet using a clean stirring rod.
6. Add water sample to the 10 ml mark.
7. Close the vial tightly with the cap and swirl several times
until the tablet is dissolved.
8. Place the vial in the sample chamber making sure that
the marks are aligned.
9. Press TEST key.
10. Remove the vial from the sample chamber.
11. Add one DPD No. 3 tablet straight from the foil to the
same water sample and crush the tablet using a clean
stirring rod.
12. Close the vial tightly with the cap and swirl several times
until the tablet is dissolved.
prepare Zero
press ZERO
Zero accepted
prepare T1
press TEST
0
01

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PM600_1c 03/2013
1.1 Methods
13. Place the vial in the sample chamber making sure that
the marks are aligned.
14. Press TEST key.
Wait for a reaction period of 2 minutes.
After the reaction period is finished the measurement
starts automatically.
The result is shown in the display in:
mg/l free Chlorine
mg/l combined Chlorine
mg/l total Chlorine
Notes:
See page 15
T1 accepted
prepare T2
press TEST
Countdown
2:00
*,** mg/l free Cl
*,** mg/l comb Cl
*,** mg/l total Cl

18 PM600_1c 03/2013
1.1 Methods
Chlorine, free
with Tablet
0.01 – 6 mg/l Cl2
1. Fill a clean vial (24 mm Ø) with 10 ml of the water
sample, close tightly with the cap.
2. Place the vial in the sample chamber making sure that
the marks are aligned.
3. Press ZERO key.
4. Remove the vial from the sample chamber and empty
it, leaving a few drops remaining in the vial.
5. Add one DPD No. 1 tablet straight from the foil and
crush the tablet using a clean stirring rod.
6. Add water sample to the 10 ml mark.
7. Close the vial tightly with the cap and swirl several times
until the tablet is dissolved.
8. Place the vial in the sample chamber making sure that
the marks are aligned.
9. Press TEST key.
The result is shown in the display in mg/l free
Chlorine.
Notes:
See page 15
prepare Zero
press ZERO
Zero accepted
prepare Test
press TEST
0
01