Thermo Scientific AQUAfast AQ3170 User manual

AQUAfast AQ3170 Chlorine Colorimeter
User Guide
Version 1
XCALI-97414 Revision A • February 2017

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Version 1 02/2017 AQ3170 Chlorine Colorimeter PROFORMA User Guide
Contents
• General Notes .....................................4
Guidelines for photometric measurements ................4
Method Notes .....................................4
Battery Replacement ................................5
• Functional Description ...............................6
Operation .........................................6
Display Backlight ...................................7
Recall of Stored Data ................................7
Timer / Reaction Period ..............................7
• Methods..........................................8
Chlorine, Low Range ................................8
Chlorine, High Range ...............................10
• Menu Options ....................................12
Menu Selections...................................12
Recall of Stored Data ...............................12
Setting Date and Time ..............................12
• Calibration Mode ..................................13
User Calibration ...................................13
Factory Calibration Reset ............................14
• Technical Data ....................................15
Operating Messages ...............................16
Error Codes ......................................16
Technical Support .................................17
Ordering Information................................17
Important Information
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.
Important disposal instructions for batteries and accumulators
EC Guideline 2006/66/EC requires users to return all used and worn-out batteries and accumu-
lators. They must not be disposed of in normal domestic waste. Because our products include
batteries and accumulators in the delivery package our advice is as follows :
Used batteries and accumulators are not items of domestic waste. They must be disposed of in a
proper manner. Your local authority may have a disposal facility; alternatively you can hand them
in at any shop selling batteries and accumulators. You can also return them to the company which
supplied them to you; the company is obliged to accept them.
Important Information
To Preserve, Protect and Improve the Quality of the Environment
Disposal of Electrical Equipment in the European Union
Because of the European Directive 2012/19/EU your electrical instrument must not be disposed
of with normal household waste! Thermo Scientic will dispose of your electrical instrument in a
professional and environmentally responsible manner. This service, excluding the cost of trans-
portation is free of charge. This service only applies to electrical instruments purchased after 13th
August 2005. Send your electrical Thermo Scientic instruments for disposal freight prepaid to
your supplier.

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Version 1 02/2017 AQ3170 Chlorine Colorimeter PROFORMA User Guide
General Notes
Guidelines for photometric measurements
1. Vials, caps and stirring rods should be cleaned thoroughly after each analysis to prevent interference.
Even minor reagent residues can cause errors in the test result.
2. The outside of the vial must be clean and dry before starting the analysis. Clean the outside of the vials
with a towel to remove ngerprints or other marks.
3. Zero calibration and test must be carried out with the same vial as there may be slight dierences in
optical performance between vials.
4. The vials must be positioned in the sample chamber for zeroing and test with the mark on the vial
aligned with the mark on the instrument.
5. Always perform zeroing and test with the vial cap tightly closed. Only use the cap with a sealing ring.
6. Bubbles on the inside wall of the vial lead to incorrect measurements. To prevent this, remove the bubbles
by swirling the vial before performing the test.
7. Avoid spillage of water into the sample chamber because this can lead to incorrect test results.
8. Contamination of the transparent cell chamber can result in wrong readings. Check at regular intervals
and – if necessary – clean the transparent cell chamber using a moist cloth or cotton buds.
9. Large temperature dierences between the instrument and the environment can lead to errors – e.g. due
to the formation of condensation in the cell chamber or on the vial.
10. To avoid errors caused by stray light do not use the instrument in bright sunlight.
11. The reagents must be added in the correct sequence.
Method Notes
• Prior to measurement ensure that the sample is suitable for analysis (no major interferences) and does
not require any preparation i.e. pH adjustment, ltration etc.
• Reagents are designed for use in chemical analysis only and should be kept well out of the reach of children.
• Ensure proper disposal of reagent solutions.
• Safety Data Sheets are available on request.
Correct lling of the vial:
Correct position of the vial (Ø 24 mm):
CAUTION:
To ensure that the instrument is water proof:
seal ring (E) must be in position
battery compartment cover (B) must be xed with the four screws
If the batteries are removed for more than one minute the date and time menu starts automatically when the photo-
meter is switched on the next time.
Battery Replacement:
AAA/LR03
AAA/LR03
AAA/LR03
AAA/LR03
(D) batteries
(E) seal ring
(C) notch
(F) instrument back
(B) battery com-
partment cover
(A) screws
General Notes

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Operation
Switch the unit on using the [ON/OFF] key.
The display shows the following: "CL L" or "CL H"
Select the required test using the [MODE] key.
Scroll Memory (SM)
To avoid unnecessary scrolling for the required test method, the instrument memorizes the
last method used before being switched o. When the instrument is switched on again, the
scroll list comes up with the last used test method rst.
The display shows the following: "CL L" or "CL H"
Fill a clean vial with the water sample up to the 10 ml mark, screw the cap on and place the
vial in the sample chamber making sure that the marks are aligned.
Press the [ZERO/TEST] key.
The "CL L" or "CL H" symbol ashes for approx. 8 seconds.
The display shows the following: 0.0.0
After zero calibration is completed, remove the vial from the sample chamber. Add the re-
agent to the vial according to the specic reagent instructions. The characteristic coloration
appears after the addition of the reagent.
Replace the cap on the vial and place in the sample chamber making sure that the marks
are aligned.
Press the [ZERO/TEST] key.
(For Countdown/reaction period see page 7)
The "CL L" or "CL H" symbol ashes for approx. 3 seconds.
The result appears in the display.
The result is saved automatically.
Repeating the test:
Press the [ZERO/TEST] key again.
Repeating the zero:
Press the [ZERO/TEST] key for 2 seconds.
On
Off
Mode
Zero
Test
Zero
Test
Zero
Test
0.0.0
Zero
Test
Display Backlight
Press the [ Option] key to turn the display backlight on or o. The backlight is switched o auto-
matically during the measurement.
Recall of Stored Data
If the instrument is switched on, press the [Option] key for more than 4 seconds to access the
recall menu.
Option
Option
Timer / Reaction Period
If a reaction period is included in a method a countdown function can be used:
Press the [Option] key and hold.
Press the [ZERO/TEST] key.
Release the [Option] key; the countdown starts.
After the countdown is nished the measurement starts automatically.
It is possible to interrupt the countdown by pressing the [ZERO/TEST] key. Measurement starts
immediately.
Caution:
An incomplete reaction period can lead to incorrect test results.
Zero
Test
Option
Functional Description Functional Description

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Version 1 02/2017 AQ3170 Chlorine Colorimeter PROFORMA User Guide
Chlorine, Low Range, with Powder Pack
Reagent
0.02 – 2.0 mg/l
If necessary, press the [MODE] key until the CL L mode is shown.
a) Free Chlorine
1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample and close the vial tightly with
the cap. Wipe the exterior of the vial with a lint-free tissue. (See Notes 2 and 3)
2. Place the vial into the sample chamber making sure that the marks are aligned.
3. Press the [ZERO/TEST] key to perform a zero calibration.
4. Remove the vial from the sample chamber.
5. Add the contents of one Chlorine Free-DPD Powder Pack Reagent straight from the
foil into the water sample.
6. Close the vial tightly with the cap and invert several times to mix the contents (20 seconds).
7. Place the vial in the sample chamber making sure that the marks are aligned.
8. Press the [ZERO/TEST] key. The CL L symbol will ash for approximately 3 seconds.
9. The result will be shown in the display in mg/l Free Chlorine.
b) Total Chlorine
1. Remove the vial from the sample chamber.
2. Rinse the vial and the cap several times and then ll the vial with 10 ml of water sample
(see Notes 2 and 3).
3. Add the contents of one Chlorine Total-DPD Powder Pack Reagent straight from the
foil into the water sample.
4. Close the vial tightly with the cap and invert several times to mix the contents (20 seconds).
5. Place the vial in the sample chamber making sure that the marks are aligned.
6. Wait for a reaction period of 3 minutes.
To activate the countdown:
a. Press and hold the [Option] key.
b. Press the [ZERO/TEST] key.
c. Release the [Option] key and the countdown will start.
7. After the 3 minute countdown, the measurement will start automatically or press the
[ZERO/ TEST] key. The CL L symbol will ash for approximately 3 seconds.
8. The result will be shown in the display in mg/l Total Chlorine.
c) Combined Chlorine
Combined Chlorine = Total Chlorine – Free Chlorine
Tolerances:
0 – 1 mg/l: ± 0.05 mg/l
> 1 – 2 mg/l: ± 0.10 mg/l
Zero
Test
CL L
CL L
CL L Notes:
1. Vial cleaning:
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.
2. For individual testing of free and total chlorine, the use of dierent sets of glassware is recommended
(EN ISO 7393-2, 5.3).
3. Do not use the same sample vial for free and total chlorine without thoroughly rinsing the vial between
the two dierent tests.
4. Preparing the sample:
The analysis must take place immediately after taking the sample.
5. The DPD color development is carried out at a pH value of 6.2 to 6.5. The reagents therefore contain a
buer 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).
6. Exceeding the measuring range:
Concentrations above 2 mg/l chlorine can lead to results showing 0 mg/l. In this case, the water sample
must be diluted with water free of chlorine and the measurement repeated.
7. Oxidizing agents such as bromine, ozone etc. interfere as they react in the same way as chlorine.
Reagent Quantity Cat. No.
Clorine Free-DPD Powder Pack Reagent 100 CT AC4P71
Chlorine Total-DPD Powder Pack Reagent 100 CT AC4P72
Chlorine Bulk Powder Dispenser, Free 250 CT AQ250F
AQ250F Rell Free Chlorine, 1 Vial 250 CT AC71P1
AQ250F Rell Free Chlorine, 2 Vials 2 x 250 CT AC71P2
Chlorine Bulk Powder Dispenser, Total 250 CT AQ250T
AQ250T Rell Total Chlorine, 1 Vial 250 CT AC72P1
AQ250T Rell Total Chlorine, 2 Vials 2 x 250 CT AC72P2
Chlorine Primary Standard Kit 1.5 mg/l CLSK100
Chlorine Secondary Standard Kit 0.0, 0.20 and 1.0 mg/l CLSK200
Zero
Test
Option
Methods Methods
Zero
Test
Zero
Test

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Version 1 02/2017 AQ3170 Chlorine Colorimeter PROFORMA User Guide
Chlorine with Powder Pack Reagent
(plastic vial type 2, 10 mm)
0.1 – 8.0 mg/l
If necessary, press the [MODE] key until the CL H mode is shown.
a) Free Chlorine
Fill a clean vial (10 mm ) with 5 ml of the water sample and perform zero calibration (see
“Operation”).
Add the contents of two Chlorine Free-DPD Powder Pack Reagents straight from the foil
into the water sample.
Close the vial tightly with the cap and invert several times to mix the contents (20 sec.).
Place the vial in the sample chamber making sure that the marks are aligned.
Press the [ZERO/TEST] key.
The CL H symbol  ashes for approx. 3 seconds.
The result is shown in the display in mg/l Free Chlorine.
b) Total Chlorine
Fill a clean vial (10 mm ) with 5 ml of the water sample and perform zero calibration (see
“Operation”).
Add the contents of two Chlorine Total-DPD Powder Pack Reagents straight from the foil
into the water sample.
Close the vial tightly with the cap and invert several times to mix the contents (20 sec.).
Place the vial in the sample chamber making sure that the marks are aligned.
Wait for a reaction period of 3 – 6 minutes.
Press the [ZERO/TEST] key.
The CL H symbol  ashes for approx. 3 seconds.
The result is shown in the display in mg/l Total Chlorine.
c) Combined Chlorine
Combined Chlorine = Total Chlorine – Free Chlorine
Tolerances:
2 – 3 mg/l: ± 0.2 mg/l
> 3 – 4 mg/l: ± 0.3 mg/l
> 4 – 8 mg/l: ± 0.4 mg/l
Zero
Test
Zero
Test
CL H
CL H
CL H
0.0.0
0.0.0
10 ml
5 ml
2
Notes:
1. Vial cleaning:
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.
2. For individual testing of free and total chlorine, the use of di erent sets of glassware is recommended
(EN ISO 7393-2, 5.3)
3. Do not use the same sample vial for free and total chlorine without thoroughly rinsing the vial betweeen
the two di erent tests.
4. Preparing the sample:
When preparing the sample, the lost of chlorine, e.g. by pipetting or shaking, must be avoided. The anal-
ysis must take place immediately after taking the sample.
5. The DPD color development is carried out at a pH value of 6.2 to 6.5. The reagents therefore contain a
bu er 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).
6. Concentrations above 8 mg/l chlorine can lead to results showing 0 mg/l. In this case, the water sample
must be diluted with water free of chlorine and the measurement repeated.
7. If chlorine is at concentrations under 2 mg/l, the 0.02 - 2 mg/l measurement range should be used
(CL L).
8. Oxidizing agents such as bromine, ozone etc. interfere as they react in the same way as chlorine.
Reagent Quantity Cat. No.
Clorine Free-DPD Powder Pack Reagent 100 CT AC4P71
Chlorine Total-DPD Powder Pack Reagent 100 CT AC4P72
Chlorine Bulk Powder Dispenser, Free 250 CT AQ250F
AQ250F Re ll Free Chlorine, 1 Vial 250 CT AC71P1
AQ250F Re ll Free Chlorine, 2 Vials 2 x 250 CT AC71P2
Chlorine Bulk Powder Dispenser, Total 250 CT AQ250T
AQ250T Re ll Total Chlorine, 1 Vial 250 CT AC72P1
AQ250T Re ll Total Chlorine, 2 Vials 2 x 250 CT AC72P2
Chlorine Primary Standard Kit 1.5 m g /l CLSK100
10 mm Plastic Vials 12 Pack AC2V10
Methods Methods

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Menu Selections
Switch the unit o.
Press the [MODE] key and hold.
Switch the unit on using the [ON/OFF] key.
Allow the 3 decimal points to be displayed before releasing the [MODE] key.
The [Option] key allows for selection of the following menu points:
diS recall stored data
dAtE setting the date and time
CAL user calibration
diS – Recall of Stored Data
After conrming the selection with the [MODE] key the photometer shows the last 16 data sets
in the following format (automatically proceeds every 3 seconds until result is displayed):
Number n xx (xx: 16...1)
Year YYYY (e.g. 2014)
Date mm.dd (monthmonth:dayday)
Time hh:mm (hourhour:minuteminute)
Test Method
Result x,xx
The [ZERO/TEST] key repeats the current data set.
The [MODE] key scrolls through all stored data sets.
Quit the menu by pressing [Option] key.
Setting Date and Time (24-hour-format)
After conrming the selection with the [MODE] key the value to be edited will be shown for 2 sec.
The setting starts with the year (YYYY) followed by the actual value to be edited. The same
applies for month (mm), day (dd), hour (hh) and minutes (mm). Set the minutes rst in steps of
10, press the [Option] key to continue setting the minutes in steps of 1.
Increase the value by pressing the [MODE] key.
Decrease the value by pressing [ZERO/TEST] key.
Proceed to the next value to be edited by pressing [Option] key.
After setting the minutes and pressing the [Option] key the display will show “IS SET” and the
instrument returns to the measurement mode.
On
Off
Mode
Option
Mode
Mode
Zero
Test
diS
CAL
METHOD
0.0.0
METHOD
METHOD
CAL
CAL – User Calibration
Note :
user calibration (Display in calibration mode)
factory calibration (Display in calibration mode)
After conrming the selection with the [MODE] key the instrument will show CAL/"Method".
Scroll through methods using the [MODE] key.
Fill a clean vial with the standard up to the 10 ml mark, screw the cap on and place the vial in
the sample chamber making sure that the marks are aligned.
Press the [ZERO/TEST] key.
The method symbol ashes for approx. 8 seconds.
The display shows the following in alternating mode:
Perform calibration with a standard of known concentration (see "Operation").
Press the [ZERO/TEST] key.
The method symbol ashes for approx. 3 seconds.
The result is shown in the display, alternating with CAL.
If the reading corresponds with the value of the calibration standard (within the specied toler-
ance), exit calibration mode by pressing the [ON/OFF] key.
Changing the displayed value:
Pressing the [MODE] key once increases the displayed value by 1 digit.
Pressing the [ZERO/TEST] key once decreases the displayed value by 1 digit.
Press the corresponding key until the reading equals the value of the calibration standard.
By pressing the [ON/OFF] key, the new correction factor is calculated and stored in the user
calibration software.
Conrmation of calibration (3 seconds).
CAL
cAL
Zero
Test
Zero
Test
Mode
SET
DATE
YYYY
(2 sec.)
Mode
Zero
Test
CAL
RESULT + x
CAL
Mode
On
Off
Zero
Test
: :
RESULT
dAtE
Cal
CAL
Option
Option
Methods Menu options - Calibration Mode

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Version 1 02/2017 AQ3170 Chlorine Colorimeter PROFORMA User Guide
cAL
SEL
SEL
CAL
CAL
SEL
Factory Calibration Reset
Resetting the user calibration to the original factory calibration will reset all methods and ranges.
A user calibrated method is indicated by a "Cal" symbol while the test result is displayed.
To reset the calibration press both the [MODE] and [ZERO/TEST] key and hold.
Switch the unit on using the [ON/OFF] key.
Release the [MODE] and [ZERO/TEST] keys after approx. 1 second.
The following messages will appear in turn on the display:
The factory setting is active.
(SEL stands for Select)
or:
Calibration has been set by the user.
(If the user calibration is to be retained, switch the unit o using the [ON/OFF] key).
Calibration is reset to the factory setting by pressing the [MODE] key.
The following messages will appear in turn on the display:
Switch the unit o using the [ON/OFF] key.
Mode
On
Off
Mode
On
Off
Zero
Test
RESULT
Cal
Technical Data
Instrument single wavelength, direct reading colorimeter
Light source: LED, interference lter (IF) and photosensor in transparent cell chamber.
Wavelength specications of the IF:
530 nm = 5 nm
Wavelength accuracy ± 1 nm
Photometric accuracy* 3% FS (T = 20° C – 25° C)
Photometric resolution 0.01 A
Power supply 4 batteries (AAA/ LR 03)
Operating time 17hr operating time or 5000 test measurements in continuous mode when display
backlight is o
Auto-OFF automatic switch o
10 minutes after last keypress
Display backlit LCD (on keypress)
Storage internal ring memory for 16 data sets
Time real time clock and date
Calibration user and factory calibration
resetting to factory calibration possible
Dimensions 155 x 75 x 35 mm (LxWxH)
Weight approx. 260 g (incl. batteries)
Ambient conditions temperature: 5– 40°C
rel. humidity: 30– 90 % (non-condensing)
Waterproof as dened in IP 67
CE Certicate for Declaration of CE-Conformity
*measured with standard solutions
To ensure maximum accuracy of test results, always use the reagent systems supplied by the instrument manufacturer.
Calibration Mode Technical Data

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Version 1 02/2017 AQ3170 Chlorine Colorimeter PROFORMA User Guide
Operating Messages
Measuring range exceeded or excessive turbidity.
Result below the lowest limit of the measuring range.
Replace batteries, no further tests possible.
Battery capacity is too low for the display backlight; measurement is still possible.
A user calibrated method is indicated by a "Cal" symbol while the test result is displayed. (see
"Factory calibration reset").
Error Codes
Light absorption too great. Reasons: e.g. dirty optics.
Calibration factor "out of range"
Too much light reaching the detector.
Too much light reaching the detector.
Battery capacity was too low during measurement. Change battery.
CL L: Factory calibration incorrect / erased
CL L: User calibration incorrect / erased
CL H: Factory calibration incorrect / erased
CL H: User calibration incorrect / erased
Hı
Lo
E 10 / E 11
E 20 /E 21
E 22
btLo
E 70
E 71
E 72
E 73
RESULT
Cal
E27 / E28 / E29
E23 / E24 / E25
Operating Messages - Error Codes
Technical Support
For any questions or if you require assistance, contact our Technical Support Specialists:
• Email wai.techservbev@thermosher.com
• Within the United States, call 1-800-225-1480
• Outside the United States, call [phone] or fax [phone]
For additional product information, contact your local authorized dealer, Thermo Scientic Orion technical sales represen-
tative or contact us using the Water and Laboratory Products (WLP) information on the back page of this user manual.
Ordering Information
AQ3170 Orion AQUAfast chlorine colorimeter with 100 free chlorine DPD powder packs, 100 total
chlorine DPD powder packs, sample vials, eld case, batteries and literature
AC4P71 Orion AQUAfast free chlorine DPD powder packs, 100 tests
AC4P72 Orion AQUAfast total chlorine DPD powder packs, 100 tests
AQ250F Orion AQUAfast free chlorine DPD bulk powder dispenser with one vial x 250 count
AQ250T Orion AQUAfast total chlorine DPD bulk powder dispenser with one vial x 250 count
CLSK100 Orion AQUAfast chlorine primary standard kit to prepare 1.5 mg/L NIST-traceable chlorine
standard
CLSK200 Orion AQUAfast chlorine secondary standards kit (0.0, 0.20 and 1.0 mg/l chlorine)
AC2V24 Orion AQUAfast replacement 24mm vials, 12 pack
AC3SR24 Orion AQUAfast replacement sealing rings for 24mm vials, 12 pack
AC2V10 Orion AQUAfast replacement 10mm vials, 12 pack

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