eXact Micro 20 Instruction Manual

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Page 1

Advanced Photometer System

Page 2

eXact® Micro 20 with Bluetooth® SMART Specications 3

About your eXact

Micro 20 photometer 4

About Bluetooth

SMART 4

About eXact

Strip Micro 5

Compliance verication 5

About the eXact iDip

app for Micro 20 with Bluetooth® SMART 6 – 7

Managing data with the eXact iDip

app 8 – 9

eXact

Micro 20 Test Specications 10 – 11

Select group overview 12

eXact

Micro 20 meter messages 12

About the Sample Cell (built–in 4 mL) 13

How to install or replace "AAA" batteries 13

2–Year Limited Warranty 13

Using eXact

Strip Micro (reagent strips) Test Procedure

Alkali pH, Acid pH, Biguanide, Bromine, Calcium Hardness, Chloride,

Chromium, Copper, High Range Chlorine, Hydrogen Peroxide, Nitrate,

Nitrite, Ozone, Peracetic Acid, Peracetic Acid Low, Permanganate,

pH, Phosphate, Quaternary Ammonia Compound QAC,

Sulfate, Total Alkalinity, and Total Hardness HR & LR

14 –15

Using eXact

Reagent (liquid drops) Test Procedure

Cyanuric Acid and Fluoride

16 –17

Free or Total Chlorine

Combined Chlorine 19

Aluminum, Ammonia & Sulde 20

Cyanide 21

Total Iron 22

High Range Chloride 23

Manganese 24

Chlorine Dioxide 25

Nitrate (salt water > 4000 ppm) 26

Tips for Best Accuracy 27

About the Accuracy/Calibration of the eXact

Micro 20 System 28

eXact

Strip Micro (DPD–1) Accuracy 28

Accessories / Kits 29

Notes 30

Available Reagents / Reorder Information 31

Contact Information 32

Contents

Page 3

eXact® Micro 20 with Bluetooth® SMART Photometer Overview

Your new eXact® Micro 20 is ideal for testing Drinking Water, Pools, Spas, Ponds, Aquariums, Food Process Water, Environmental Waters, and more!

Technical Specications

eXact® Micro 20 with Blutooth® SMART (486700BT)

Measurement method Photometric

Cell chamber Custom–molded, proprietary, PET

plastic fused into chamber, non–removable

Light source Light Emitting Diode

(LED) with precision lter

Sample required 4mL (0.13oz)

Wavelength Dual—525nm & 638nm Operating temp range 0 °—50°C (32°—122°F)

Transmission range 100 — 0.00%T Power supply (4) AAA alkaline batteries

Photometric precision +/– 0.1/0.01 %T Battery life >2000 tests

Automatic range selection See specications below

Electromagnetic compliance (EMC)

Emitted interference – EN61326 Immunity to interference – EN61326

Display 3–digit customized liquid

crystal display with annunciators

Waterproof rating Exceeds IP67

Cell path–length 20 nm Weight 181g (6.4oz) with batteries

Reagent system

Utilizes patented eXact® strip micro reagent delivery system with our EZ–3™ method

Dimensions 5 x 3.5 x 16.5 cm

(2 x 1.4 x 6.5) in W x D x H

Wireless

Bluetooth® SMART (requires Bluetooth® 4.0 and Android 4.3 and up or Apple iOS 6.1 and up)

CELL COVER

RESULT IN PPM

BATTERY

LEVEL

SELECT GROUP

DIGIT

for >999

SAMPLE CELL

LCD

SCREEN

READ BUTTON

ON/ZERO BUTTON

MENU BUTTON

SELECT BUTTON

BATTERY

COMPARTMENT

COVER

AAA BATTERIES x4

(NOT INCLUDED)

Covers the cell for mixing and bright light situations

Use to select desired test

within Select groups.

Use to select group number (7 available)

Built–in plastic 4mL cell for collecting your water sample

Appears when meter is connected with eXact iDip® app.

Turns the meter on and creates a baseline for your water testing

Starts test timer

Page 4

About your eXact® Micro 20 photometer

In order to save power, the meter is designed to turn off after 5 minutes (timed from the last button pressed). Should the meter turn off in the middle of a test, the last stored zero in the meter will remain valid when the meter is turned on again. Also, the test result is stored in memory for easy retrieval.

The eXact® Micro 20 meter is controlled by four buttons:

When rst pressed, the ZERO/ON button powers the meter. When the meter is on and this button is pressed, it zeros the sample in the cell. It is recommended that each new water sample analyzed is zeroed before testing, to maximize sensitivity and accuracy.

With each press, the SELECT button advances through the Select Group 1 through

7. The current Select Group will appear as a small digit to the right of the selected MENU (example: ).

With each press, the MENU button advances through the tests available in the current Select Group. Each test menu can store up to 20 results. To retrieve the stored results, go to the desired test using the MENU key. When the desired test is displayed, press and hold down the MENU key. Continue holding down the MENU key to scroll the stored results for that test, starting with the most recent result. The meter will display, from memory, the last 20 readings in sequence beginning with –20, which is the latest result, followed by 19, which is the 2nd latest result, etc; and nally –01, which is the oldest result retained. Only the last 20 readings are stored in each menu.

When READ is pressed once, this button starts the timer for the parameter being tested. When pressed a second time the meter exits the timer and immediately prepares to measure the sample. The meter will simultaneously store the measurement in memory.

If the parameter being measured is below or above the detection range, the display will show “LO” (Under Range) or “HI” (Over Range), respectively. This feature is menu specic and does not apply to all parameters.

About Bluetooth® SMART

Bluetooth® SMART is a low–power wireless networking standard which uses short radio waves

to allow electronic devices to communicate with each other. The eXact® Micro 20 with Bluetooth® SMART comes standard with the latest Bluetooth® 4.0 technology (www.bluetooth.com/Pages/

Bluetooth–Smart.aspx), a class 2 device with a wireless working distance of up to 30 feet (10

meters) and a 2.1 Mbps data transfer rate. This allows a seamless transfer of data between a smart device and the eXact® Micro 20 with Bluetooth® SMART.

Page 5

About

Compliance Verication

This DPD test system is accepted by most health departments because this test is USEPA (DIN Standard 38 408 G4, ISO 7393/2) accepted for testing requirements for Free and Total Chlorine. The eXact® Micro 20 meter uses a wavelength of 525 nm; and the compliance requirement is that the colorimeter wavelength is between 490 nm to 530 nm. The eXact® Strip Micro CL (DPD–1) uses the same reagents and proportions, and the resulting solution pH is maintained between 6.2 and 6.5 as specied by AWWA (American Water Works Association) method 4500–Cl G. It should be understood that the USEPA does not “approve” commercial DPD delivery systems such as reagent powder pillows, tablets, dispensers, or

eXact® Strip DPD delivery devices. The eXact® Strip Micro CL (DPD–1) for Free Chlorine, and the eXact®

Strip Micro CL (DPD–3), the eXact® Strip Micro CL (DPD–4) for Total Chlorine, and the eXact® Strip Micro Cd (DPD–1) for Chlorine Dioxide meet your reportable testing requirements because the eXact® Strip Micro strips deliver the same chemicals in identical proportions (see table below). Likewise, AWWA proportions are followed as required for Total Chlorine measurements using Potassium Iodide. The eXact® Strip Micro Chromium is compliant because it uses the same wavelength and delivers the same chemicals in the same proportions as AWWA method 3500–Cr B. This is also true for Phosphate (Ascorbic Acid method, AWWA 4500–P E.) and Sulde (Methylene Blue method, AWWA 4500–S–2 D). Our Ammonia tests are based on the Nitroprusside/phenate method found in Standard Methods. Interferences are controlled by EDTA and sodium potassium tartrate. Standard Methods requires an instrument reading in the range of 630 to 660nm. The Micro 20 reads the reacted sample at 638nm.

Component

(Free Chlorine)

AWWA

4500–CI G

eXact®

DPD–1

Anhydrous DPD sulfate 1.5% 1.5%

Anhydrous Na

HPO

33.4% 33.4%

Anhydrous KH

2PO4Na2

64.0% 64.0%

EDTA 1.1% 1.1%

For a complete list of eXact® Strips Micro we offer, please see page 31.

The eXact

Micro 20 with Bluetooth® SMART is designed to work with our line of eXact® Micro Strips.

This type of reagent delivery method is designed to give the most precise accuracy reading for testing various water quality parameters.

eXact® Strip Micro has been designed to offer the user a more “Green” and cost–effective alternative

to testing. Instead of using a 10 mL water sample, eXact® Strip Micro uses a 4mL water sample, which uses up to 60% less chemical per test. The accuracy of the meter is maintained by designing the photo cell with a 20 mm path–length.

e act

Strip

e acte

act

StripStrip

Page 6

eXact iDip® app overview

History: Accesses saved results which can be sorted, edited, and emailed. Also accesses History Map

CALENDAr:

Displays your schedule/ appointments

storE:

Opens store to unlock additional tests

CUstoMErs: Attaches results to people and/or locations from your

smart

device contacts

tEst: Initiates water testing

rEsULts:

Accesses temporary results that have not been saved to history

MENU: Opens slide-out for

easy access to all app features

HOME SCREEN

BLUEtootH DEviCE

tEstiNg pArAMEtEr

tEst rEsULt

TEST RESulT SCREEN

tEst ABBrEviAtioN

pArAMEtEr UNit of MEAsUrE

Scroll unit of measure values. Some tests offer results in multiple units of measure.

Dots iNDiCAtE MULtipLE UNits of MEAsUrE

(Available for some tests)

M20BT B00007v69.02

Page 7

eXact iDip® app overview

Download the App

Using your smart device, download the eXact iDip® app. To see if your smart device is compatible, please see our compatibility list at sensafe.com/compatible-devices/.

We are constantly improving the eXact iDip

app and welcome your suggestions to help make our

product even better. Visit www.sensafe.com/idip or e-mail your feedback to exactidip@sensafe.com.

The Menu slide-out is available from any screen within the app. The Menu allows you to access any of the app’s features with ease.

HOW TO VIEW YOUR GPS LOCATION

ln the Settings screen you can view your current GPS coordinates.

ABOUT

Access the End-User License Agreement and contact information to reach our ofces in the USA and

Europe from the

About section located in the Menu slide-out.

Located in the About section you can nd which version of the app you are running. Be sure to check for updates and install the latest version before running a test as we are constantly updating and adding more features to the app!

Test

You can utilize two different testing methods under Test; Manual Entry or Bluetooth Device.

BLUETOOTH TEST

Tests will be performed with your eXact® Micro 20.

MANUAL TEST

This feature allows you to utilize other testing methods and manually enter your results into the app. Begin

by selecting

‘Test’, ‘Manual entry’, then ‘Change value’ to enter.

History

The History stores all your saved test result information and allows you to sort by date, customer name, or test type.

HOW TO SORT BY CUSTOMER

To sort by Customer begin by clicking ‘History’, then ‘Sort by’, ‘Customer’. You can then scroll

through your list of customers, by name, to nd a specic test result.

HOW TO SORT BY DATE

To sort by Date begin by clicking ‘History’ then ‘Sort by’, ‘Date’. You can then scroll through a list of

tests performed by date. You can also set a specic date range period by selecting

‘Date range’.

Then set your

From and To date ranges.

HOW TO SORT BY TESTS

To sort by Test begin by clicking ‘History’ then ‘Sort by’, ‘Test’. You can then scroll through a list of tests sorted in alphabetical order.

HOW TO ACCESS HISTORY MAP

The History Map stores GPS locations of testing sites. See page 9 for instructions on utilizing this feature.

Page 8

eXact iDip® app for eXact® Micro 20 with Bluetooth® SMART

The benets of purchasing an eXact Micro 20 with Bluetooth® SMART is the ability to connect your photometer to a smartphone or tablet and use our specially designed app to easily save, send, and share your test results. First, select your test using the menu selections on your Micro 20 then run the test and the results will simultaniously display on the app and on your Micro

20 with Bluetooth® SMART. From the app, you can save,

send, and share the results directly linked to your customers information and GPS location to include date/time stamp. The eXact iDip® app is available for use on both Apple and Android devices. The app is compatable with Bluetooth 4.0 devices (Android 4.3 and up and Apple iOS 6.1 and up) For a full list of compatible devices please visit sensafe.com/compatible–devices/.

When using your eXact® Micro 20 with Bluetooth® SMART and the eXact iDip® app. You will need to complete the following steps after you have rinsed and

lled your cell with the water sample and prior to zeroing your meter and dipping

your strip.

Please note that batch uploading tests saved on your eXact Micro 20 to a smartphone/tablet is not yet available. If you want to save a test result from your Micro 20 to the app, you will need to run the test while connected to the app or enter the result manually.

READ RESULTS

Results will display simultaneously on the Micro 20 photometer and app.

HOW TO SELECT A CUSTOMER

From your smartphone/tablet, launch the eXact iDip® app. Select ‘Customers’ from the home screen. From the Customers list ‘Add customer from contacts’ or create a new contact by selecting the ‘+’ in the upper right hand corner.

HOW TO CONNECT VIA BLUETOOTH

Tap the menu slide out screen ‘ ’ and select ‘Bluetooth Test’. Select your eXact® Micro 20 from the list located at the bottom of the screen. Verify it has connected and tap ‘OK’.

The serial number is located on the back of your device, this will display in the app. Refer to the serial number to ensure you are connected to the correct device.

Please Note: When you select a new customer, this customer will not appear in the list until you have run and saved a test using the app and your eXact

Micro 20 with Bluetooth® SMART photometer.

Page 9

Managing data with the eXact® iDip app

MANAGING DATA (SAVE/SEND/SHARE)

When all tests have been performed, select ‘Results’ at the bottom of the screen. To add notes tap the desired test result.

TYPE NOTES

Add any notes you wish into the ‘Notes’ box. The additions will be automatically saved.

MANAGING DATA (SAVE/SEND/SHARE)

Go back to ‘Results’ and select ‘Save’ to store the test results with notes into ‘History’

HOW TO MANAGE DATA IN HISTORY

In History, you can edit, select, and email your results.

To email, you can either tap an individual result, or use

the ‘Select’ button to access multiple data points.

HOW TO EMAIL RESULTS FROM HISTORY

(1) Press the blue envelope icon from a single

result selection.

(2) To select multiple test results, tap ‘select’, choose results, and then’email’ to send the result information for all selected results. The app will automatically

attach your test result information and a .csv le

to the email.

Add recipients and tap send to complete.

ACCESSING RESULTS FROM HISTORY MAP

Tap ‘Map’ on ‘History’ page to access the History Map. Double tap or use ngers to zoom into an area. Select a pin by tapping to bring up results. From the specic location you can bring up the test results details page.

After you have ran your test, you can save, send, and share your results, by following the steps below.

Page 10

# Parameter / Test Part No. Pg #

Count–up

Time

1 Alkalinity, Total (drinking water) 486641 14 AL4

AL1

1 Immediate AL Strip

2 Alkalinity, Total (pool water) 486641 14 AL1

2 Immediate AL Strip

3 Aluminum (AI3+)

486821 20 AI3

3 80 seconds 5 Drops AL Buffer & AL Strip

4 Ammonia (NH3) 486654 20 NH3

NH4

4 500 seconds 3 Drops NH (reg. water) or 10 Drops NH (salt water), & NH Strip

5 Biguanide 486810 14 bG8

5 Immediate BG Strip

6 Bromine (DPD–1) 486636 14 bR6

bR2

6 Immediate bR (DPD–1) Strip

7 Calcium (as CaCO3) 486629 14 CA5

7 Immediate CA Strip

8 Chloride (as NaCL) 486757 14 CH5

8 Immediate CH Strip

9 Chloride, HR (as NaCL) 486757 23 CHH

9 Immediate 1:20 Dilution of sample & CH Strip

10 Chlorine Dioxide (DPD–1) 486633 25 Cd4

10 Immediate Glycine Srip & Cd (DPD–1) Strip

11 Chlorine, Combined 486637 & 486638 19 CL1

CL33CL64CL1

11 Immediate CL (DPD–1) Strip & CL (DPD–3) Strip

12 Chlorine, Free (DPD–1) 486637 18 CL1

CL33CL64CL1

12 Immediate CL (DPD–1) Strip

13 Chlorine, High Range 486672 14 CLH

13 120 seconds HR Strip

14 Chlorine, Total (DPD–4) 486670 18 CL1

CL33CL64CL1

14 Immediate CL (DPD–4) Strip

15 Chromium (VI) 486614 14 CR6

15 240 seconds Cr Strip

16 Copper (Cu2+) 486632 14 CU6

Cu9

16 120 seconds CU Strip

17 Cyanide 486812 21 CN1

17 600 seconds CN–1 Strip & CN–2 Strip

18 Cyanuric Acid 481652–II 16 CY7

18 60 seconds 5 Drops CY

19 Fluoride 486643 16 F8

19 Immediate 10 Drops F

20 Hardness, Total HR (as CaCo3) 486656 14 THH

20 Immediate THH Strip

21 Hardness, Total LR (as CaCo3) 486630 14 THL

21 Immediate THL Strip

22 Hydrogen Peroxide 486648 14 HP6

22 100 seconds HP Strip

23 Iron, Total 486650 22 FE31FE2

23 40 seconds EZ Open Reducer (Powder) & FE Strip

24 Manganese (Mn2+) 486606 24 MN7

MN2

24 120 seconds MN#1 Strip, MN#2 Strip, &3 Drops MN

25 Molybdate 486653 Mo7

25 120 seconds MO Strip, 5 drops of MO Reagent

26 Nitrate (NO3) 486655 14 NO3

26 600 seconds NO3 Strip

27 Nitrate (salt water>400 ppm) 486655 26 TR1

27 580 seconds NO3 Strip

28 Nitrite (NO2) 486623 14 NO2

28 360 seconds NO2 Strip

29 Ozone (DPD–4) 486634 14 O3

29 Immediate O3 (DPD–4) Strip

30 Peracetic Acid Low (DPD–4) 486674 14 PA5

30 Immediate PAL (DPD–4) Strip

31 Permanganate (DPD–1) 486626 14 PM7

31 Immediate PM (DPD–1) Strip

32 pH (drinking water) 486639 14 PH2

32 Immediate PH Strip

33 pH (salt water) 486639 14 PH2

PH7

33 Immediate PH Strip

34 pH, Acid 486624 14 PHA

34 Immediate Acid PH Strip

35 pH, Alkali 486609 14 PHb

35 Immediate Alkali PH Strip

36 Phosphate (PO4) 486814 14 PO42PO43PO8

36 120 seconds PO4 Strip

Quaternary Ammonia Compound QAC

486823 14 QA85QA5

37 Immediate QA Strip

38 Sulfate (SO4) 486608 14 SO4

38 Immediate SO4 Strip

39 Sulde (S

2–

) 486818 20 S5

39 180 seconds 4 Drops S & S2 Strip

40 Turbidity N/A TU5

40 Immediate Distilled or DI water

Group

1 2 3 4 5 6 7

For select group & menu overview, see page 12.

eXact® Micro 20 Test Specications

Page 11

Count–up

Time

Reagents Used

Range

(ppm)

Resolution | Best Accuracy

1 Immediate AL Strip

9 – 210 0.1(9–50.0), 1(51–210)

7.5

2 Immediate AL Strip

8 – 200 0.1(8–50.0), 1(51–200)

7.5

3 80 seconds 5 Drops AL Buffer & AL Strip

0.01 – 1.2 0.01

4 500 seconds 3 Drops NH (reg. water) or 10 Drops NH (salt water), & NH Strip

0.02 – 2.4 0.01

5 Immediate BG Strip

1.6 – 210 0.1(1.6–20.0), 1(21–210)

7.5

6 Immediate bR (DPD–1) Strip

0.01 – 12 0.01(0.01–2.00), 0.1(2.1–12)

7 Immediate CA Strip

20 – 400 1

8 Immediate CH Strip

3 – 300 1

9 Immediate 1:20 Dilution of sample & CH Strip

60 – 6000 20

10 Immediate Glycine Srip & Cd (DPD–1) Strip

0.01 – 10 0.01

11 Immediate CL (DPD–1) Strip & CL (DPD–3) Strip

0.01 – 6.2 0.01

12 Immediate CL (DPD–1) Strip

0.01 – 6.2 0.01

13 120 seconds HR Strip

1 – 300 0.1(1–20.0), 1(21–300)

14 Immediate CL (DPD–4) Strip

0.01 – 6.2 0.01

15 240 seconds Cr Strip

0.01 – 1.8 0.01

16 120 seconds CU Strip

0.01 – 11 0.01(0.01–4.00), 0.1(4.1–11)

17 600 seconds CN–1 Strip & CN–2 Strip

0.01 – 1.1 0.01

18 60 seconds 5 Drops CY

7 – 110 1

19 Immediate 10 Drops F

0.04 – 1.5 0.01

20 Immediate THH Strip

60 – 600 1

21 Immediate THL Strip

1 – 80 1

0.3 – 100 0.1(0.3–10), 1(10.1–100)

23 40 seconds EZ Open Reducer (Powder) & FE Strip

0.03 – 6 0.01(0.03–2.5), 0.1(2.51–6)

24 120 seconds MN#1 Strip, MN#2 Strip, &3 Drops MN

0.01 – 1.5 0.01

25 120 seconds MO Strip, 5 drops of MO Reagent

0.01 – 3 0.01

26 600 seconds NO3 Strip

0.1 – 30 0.01(0.1–5.00), 0.1(5.1–30)

27 580 seconds NO3 Strip

0 – 90 0.01(0–5.00), 0.1(5.1–30)

28 360 seconds NO2 Strip

0.01 – 1.8 0.01

29 Immediate O3 (DPD–4) Strip

0.01 – 2 0.01

30 Immediate PAL (DPD–4) Strip

0.01 – 6 0.01

31 Immediate PM (DPD–1) Strip

0.01 – 5 0.01

32 Immediate PH Strip

5.8 – 8.5 pH 0.1

0.2

33 Immediate PH Strip

5.8 – 8.5 pH 0.1

0.2

34 Immediate Acid PH Strip

3.2 – 6 pH 0.1

0.3

35 Immediate Alkali PH Strip

7.2 – 9.8 pH 0.1

0.3

36 120 seconds PO4 Strip

0.03 – 4.4 0.01(0.03–2.50, 0.1(2.6–4.4)

37 Immediate QA Strip

2 – 80 1

38 Immediate SO4 Strip

2 – 210 1

39 180 seconds 4 Drops S & S2 Strip

0.01 – 1.6 0.01

40 Immediate Distilled or DI water

4 – 900ntu 1

Performance veried with various salt systems and water samples with optimal water temperature at 10°–40°C / 50°–104°F. Optimal water temperature for Total Alkalinity test is 15°–35°C /59°–95°F.

For example: If the sample has 1 ppm of Free Chlorine, the meter may read 0.97 ppm or 1.03 ppm. Contact sales department for detailed meter accuracy values.

†

Value provided represents best possible accuracy under laboratory conditions, but may vary throughout the detec-

tion range. For a complete list of accuracies throughout all ranges please visit sensafe.com/micro20/specications.

†

Page 12

1 Water Quality 2 Miscellaneous 3 Pool & Spa 4 Environmental

CL1 — Free & Total Chlorine PH2 — pH FE3 — Iron AL4 — Total Alkalinity TU5 — Total Hardness

CU6 — Copper

MN7 — Manganese F8 — Fluoride

CN1 — Cyanide FE2 — Iron (II) & Total Iron NH3 — Ammonia PO4 — Phosphate S5 — Sulde PHA — Acid pH PHb — Alkali pH

AL1 — Total Alkalinity PH2 — pH CL3 — Free & Total Chlorine PO4 — Phosphate CA5 — Calcium Hardness bR6 — Bromine Cy7 — Cyanuric Acid bG8 — Biguanide

CHH —

Chloride High Range

AL1 — Total Alkalinity NO2 — Nitrite NO3 — Nitrate NH4 — Ammonia CH5 — Chloride CL6 — Free & Total Chlorine PH7 — pH PO8 — Phosphate

CU9 — Copper

5 Oxidizers 6 Specialty 7 Transmission

CL1 — Free & Total Chlorine bR2 — Bromine O3 — Ozone Cd4 — Chlorine Dioxide PA5 — Peracetic Acid Low HP6 — Hydrogen Peroxide PM7 — Permanganate QA8 — Quaternary Ammonia Compound QAC CLH — Chlorine High Range

F1 — Fluoride MN2 — Manganese AI3 — Aluminum SO4 — Sulfate QA5 — Quaternary Ammonia

CR6 — Chromium

Mo7 — Molybdate THH — Total Hardness

High Range

THL — Total Hardness

Low Range

TR1 — Transmission (525nm) TR2 — Transmission (638nm)

LCD Message Description Corrective Action

HI In READ mode: test sample concentration is above the

measurement range (test specic).

Dilute and retest. Dilution kit available (Part No. 487200)

LO In READ mode: test sample concentration is below the

measurement range (test specic).

Sample value is below measurement range.

LO In ZERO mode: sample absorbency (due to a cloudy

or colored sample or a dirty cell) is too high to zero, the meter will read “LO” or low battery

Dilute sample, lter sample or clean cell. One of these options should remedy the problem. You may need to replace batteries if low battery indication.

ER Excessive stray light detected. Normally this does not

occur, even when testing in sunlight.

Place the light blocking CAP over the CELL for zeroing and for reading result. Moving to a shaded can also x this problem.

Low battery indication during testing (meter may not zero)

Replace batteries immediately. Otherwise meter may read LO while testing.

Flashing result on LCD

Lost connection to eXact iDip® app

Press ON/ZERO to stop ashing. Remove and replace the battery cover if ashing continues for future tests.

Select group overview

eXact® Micro 20 meter messages

Below is a list of Menu and selection choices with abbreviations.

The following are some of the common messages that may display on your photometer, including error messages. If an error message other than those listed below is displayed, please contact technical support in the USA at (803) 329–0162 (ext. 0).

Page 13

About the Sample Cell (built–in 4 mL)

How to install or replace "AAA" batteries

2–year limited warranty

The built–in Sample Cell (CELL) is transparent plastic and, when lled to the top, contains 4 mL. The sturdy CELL design will last for over 20,000 readings. Scratches on the CELL will not interfere or compromise the accuracy of the readings because of its xed position. For best accuracy, rinse cell with clean water immediately after a test is completed. Do not use solvents, such as acetone, to clean the cell. When the CELL becomes stained or cloudy from repeated testing, or when the meter does not blank when you press the ZERO/ON button, the cell needs to be cleaned. Clean as follows: Fill cell with clean water and move the Cell cleaning brush up–and–down and back–and–forth along the walls of the cell. Afterwards, rinse the cell and the meter is ready for use again. Cleaning the cell regularly is especially recommended after you run a test that is using turbidity or precipitation chemistry for analysis (Calcium Hardness, Sulfate, Chloride, and Cyanuric Acid).

Registration of your eXact

photometer must be received within 30 days from date of purchase to activate the warranty. The eXact® photometer is warranted to be free from defects in materials and workmanship for a period of two (2) years from the date of purchase by the customer. ITS will repair or replace any part of the product which is deemed to be faulty or otherwise defective. The non– transferable warranty does not cover product damage caused by abuse (such as crushing a tablet in the cell) or improper use. If the meter is faulty or otherwise defective contact ITS by phone (+1–803– 329–9712 Ext. 0) or email (its@sensafe.com) to describe the problem and obtain a return authorization form before returning the photometer to ITS. Damage caused by improper packing of the photometer for return shipment to ITS will not be covered by the warranty. Customer is responsible for shipping charges to ITS. ITS pays postage when photometer is returned to customer. A maximum processing fee of $75 will be charged for repair or replacement of non–registered photometers and damages not covered by this warranty. Registration is available over the phone (+1–803–329–9712 Ext. 0) or on–line at http:// www.sensafe.com/micro/warranty/ (Personal data is kept condential).

Unscrew the O–ring sealed battery cover counter–clockwise. Use proper sized pliers if necessary. Do not disturb the sealing O–ring.

Remove the used batteries and install 4 new AAA batteries following the diagram for correct polarity (see diagram). We recommend high quality AAA alkaline batteries be used.

Replace the battery cover. Be sure to tighten the cover securely. This is necessary for meter to ensure it is waterproof.

Dispose of the used batteries in accordance with your local regulations.

Press button to conrm the meter turns on. The meter is now ready for operation.

Meter will not work if battery orientation is incorrect.

Batteries are not included. The meter requires (4) AAA in order to function.

Page 14

Using eXact® Strip Micro Standard strip test procedure

Used for Acid pH, Alkali pH, Total Alkalinity8, Biguanide, Bromine, Calcium Hardness2, Chloride3, Chlorine High Range5,

Chromium

, Copper, Total Hardness High Range1, Total Hardness Low Range1, Hydrogen Peroxide, Nitrate6, Nitrite, Ozone,

Peracetic Acid, Paracetic Acid Low, Permangante, pH, Phosphate

, Quaternary Ammonia Compound QAC, Sulfate

(SEE PAGE 15 FOR SPECIAL NOTES)

REMOVE STRIP

Remove 1 eXact® Strip Micro (ex. Total Alkalinity) from the bottle before beginning the test. Set the strip in a dry, convenient place and recap the bottle immediately.

TURN METER ON

Press the button to power the meter on; the display will show all annunciators, then the current selection, followed by the last reading.

RINSE CELL AND FILL WITH SAMPLE

Rinse the CELL at least 3 times with the water sample you will be testing (rinsing minimizes the potential for cross– contamination from a previous test). Finally, ll the CELL to capacity with the water sample.

ZERO METER*

Press the button. The cursor will move across the display followed by a display reading of 0.00 PPM. This indicates the sample is ready for testing.

SELECT GROUP AND MENU

Press and re–press the button to Select your group. Then, press and re–press the button to select the test

parameter (see chart on page 10–11).

DIP STRIP & PRESS READ

Dip the required strip into the CELL, and immediately press This will start a 20 second countdown timer. During this time, move the strip in a gentle back and forth motion (approx. 2 strokes per second). Remove and discard the strip after ‘1’

on the display disappears.

RECORD RESULT

The cursor will move across the display while the meter prepares to measure the sample. Record the value displayed for the respective parameter. This value is automatically stored in its MENU and if using the eXact iDip® app, the result will be saved in the app’s ‘HISTORY’.

Follow the steps to ‘SELECT CUSTOMER’ & ‘CONNECT DEVICE VIA BLUETOOTH’ before proceeding (see page 8).

*For best accuracy, when testing outdoors in sunlight, place cap over cell cover

Page 15

eXact® Strip Micro test procedure (SPECIAL NOTES)

Total Hardness, HR & LR— Positive interferences are observed if the test sample contains Barium.

Interferences also observed if the test sample contains Copper, Lead, Cobalt, or Nickel. The pH of the sample for Total Hardness High Range should be between 6.9 and 7.2. If the pH not in this range, the water sample pH has to adjust to pH 7 before doing the test.

Calcium Hardness — This test is accurate in water with Chloride < 2,000 ppm as NaCl. Chloride

levels from 12,000 to 24,000 ppm as NaCl give 10-15% error. For samples with Chloride levels greater than 25,000 ppm as NaCl, contact ITS for a look-up table.

Chloride — If sample pH is high (>9), adjust pH to 5–6 using Vinegar.

Chromium — The strip needs to be angled in order to fit in the CELL because it is too wide.

High Range Chlorine — Use a 10 second dip time if water temperature is above 40°C (113°F).

INTERFERENCES: Oxidizers such as Chloramine, Chlorine Dioxide, Bromine, Iodine, Ozone, Bromamines, and Permanganate will give false positive readings.

Nitrate — A. Use this procedure if NaCl is less than 400 ppm. Otherwise, use Nitrate (Salt Water)

Procedure on page 26. B. The CELL needs to be cleaned with brush and distilled water after each test. If any zinc dust is adhering to the CELL wall, it will affect results.

Phosphate — A. Clean CELL with 0.1N HCl, Distilled Vinegar (5%), or Muriatic Acid before filling the

meter with the sample to be tested. B. If running multiple tests in a row, using the same water sample,

the CELL does not have to be rinsed or cleaned with acid between each test. It is recommended that the CELL be rinsed three times with the sample water. C. The calibration of the meter is based on a

water temperature between 15°C (59°F) and 31°C (88°F). If temperature is below 15°C (59°F), your final Phosphate value may read low. This test can also be used for salt water testing.

Total Alkalinity — For water temperatures above 35°C (95°F, hot tubs), remove and discard the strip

when the timer displays “10”, countdown continues.

The eXact® Micro 20 Dual Wavelength Advanced Photometer System is designed for use with the eXact

Strip Micro reagent delivery system. The eXact® Micro 20

Dual Wavelength Photometer is manufactured and tested in an ISO 9001 Facility.

Page 16

Using eXact® reagent Standard liquid test procedure

Used for Cyanuric Acid1 and Fluoride

TURN METER ON

Press the button to power the meter on; the display will show all annunciators, then the current selection, followed by the last reading.

RINSE CELL AND FILL WITH SAMPLE

ZERO METER*

Cover the CELL with the CELL COVER and press the button. The cursor will move across the display followed by a display reading of 0.00 PPM. Tilt the meter to discard about

0.2mL water in order to leave room for liquid reagent. Sample is ready for testing.

ADD DROPS

Remove the CELL COVER and, using the selected bottle of reagent, add the required drops (see chart on pages 10–11) and cover the CELL with the CELL COVER. Precaution:

Ensure that the bottle is straight when dispensing drops.

SELECT GROUP AND MENU

Press and re–press the button to Select your group. Then, press and re–press the button to select the test

parameter (see chart on page 10–11).

PRESS READ & MIX

Press and a 20 second countdown begins. During this time, turn the meter upside down repetitively. When the timer displays ‘1’, place the Micro 20 on a at surface. Wait for count– up time.

RECORD RESULT

Follow the steps to ‘SELECT CUSTOMER’ & ‘CONNECT DEVICE VIA BLUETOOTH’ before proceeding (see page 8).

*For best accuracy, when testing outdoors in sunlight, place cap over cell cover

Page 17

eXact® reagent liquid drops (SPECIAL NOTES)

Some test procedures require the use combination of more than one test strip and/or liquid reagents. Please follow the step–by–step procedures as outlined in the following pages to ensure the best accuracy. For more tips on best accuracy, see page 28.

Any deviation from the outlined procedure, could result in inaccurate test results. Please take caution to testing notes. If your required procedure is not listed in this manual or if you have any questions, feel free to contact us at its@sensafe.com

Cyanuric Acid — Shake the bottle vigorously to mix before adding the drops to the sample

Fluoride — The reagent contains acid, a stir bar may be used to mix the reagent.

Page 18

Free or Total Chlorine test procedure

TURN METER ON

Press the button to power the meter on; the display will show all annunciators, then the current selection, followed by the last reading.

SELECT GROUP AND MENU

Press and re–press the button to Select your group (Select 1, 4, or 5). Then, press and re–press the button to select the CL1 or CL6 test parameter.

ZERO METER*

Press the button. The cursor will move across the display followed by a display reading of 0.00 PPM. This indicates the sample is ready for testing.

DPD–1 strip used for Free Chlorine detection, DPD–4 strip used for Total Chlorine detection

DIP STRIP & PRESS READ

on the display disappears*.

RECORD RESULT

The cursor will move across the display while the meter prepares to measure the sample. Record the value displayed for the respective parameter. This value is automatically stored in the CL MENU, and if using the eXact iDip® app, the result will be saved in the app’s ‘HISTORY’

IMPORTANT: DO NOT discard the sample from the Free Chlorine (DPD–1) test if you are planning to run eXact® Strip Micro

DPD–3 (Total Chlorine) Procedure. Move directly to steps 8–10 on the next page, otherwise immediately rinse the CELL.

Follow the steps to ‘SELECT CUSTOMER’ & ‘CONNECT DEVICE VIA BLUETOOTH’ before proceeding (see page 8).

*For best accuracy, when testing outdoors in sunlight, place cap over cell cover

RINSE CELL AND FILL WITH SAMPLE

REMOVE STRIP

Remove 1 eXact® Strip Micro CL (DPD–1), Part No. 486637

or eXact® Strip Micro CL (DPD–4), Part No. 486670 from the bottle before beginning the test. Set the strip in a dry, convenient place and recap the bottle immediately.

Page 19

Combined Chlorine test procedure

REMOVE STRIP

Remove 1 eXact® Strip Micro CL (DPD–3), Part No. 486638 from the bottle before beginning the test. Set the strip in a dry, convenient place and recap the bottle immediately.

This procedure is only valid when ran as a continuation of the eXact® Strip Micro

CL (DPD–1 Free Chlorine). Test procedure located on the previous page.

NOTE: Standard Method (4500–Cl G, procedure for total chlorine) requires the reading to be made after 2 minutes from the time the KI is added. For compliance testing, you must time the 2 minutes and then make your measurement.

DIP STRIP & PRESS READ

Dip the eXact® strip micro (DPD–3) into the CELL, and immediately press This will start a 20 second countdown timer. During this time, move the strip in a gentle back and forth motion (approx. 2 strokes per second). Remove and discard the strip after ‘1’ on the display disappears*. The cursor will move across the display while the meter prepares to measure the sample. Record the value displayed and this value is automatically stored in the CL MENU, the result will be saved in the app’s ‘HISTORY’.

(NOTE: The Iodide added with DPD–3 will, in the presence of

Combined Chlorine or Chloramines, convert into Iodine).

PRESS READ AGAIN

Press again and the meter will count down and display the next reading. If this reading matches the previous result, then record this as the Total Chlorine result. This value is automatically stored in the CL MENU. After testing is completed, rinse CELL immediately. Record the highest value the meter displayed as your Total Chlorine result.

*For best accuracy, when testing outdoors in sunlight, place cap over cell cover

Interfering Substance Interfering Levels and Treatments

Acidity

If sample has acidity above 150mg/L CaCO3 test may not develop full color. Neutralize to pH 6.0 to 7.0 with 0.5N Sodium hydroxide.

Alkalinity

If sample has alkalinity above 200mg/L CaCO3 test may not develop full color. Neutralize to pH 6.0 to 7.0 with 0.5N Sulfuric acid.

Bromine and Bromamines, Br

Color similar to free chlorine reaction at all levels.

Chlorine Dioxide, ClO

Color similar to free chlorine reaction at all levels.

Copper, Cu

Color development is reduced above 10 ppm (mg/L).

Iodine, I

Color similar to free chlorine reaction at all levels.

Manganese, oxidized (Mn4+, Mn7+) or Chromium, oxidized (Cr6+)

See AWWA procedure 4500-CL F, 1(d) for removal of interferences.

Monochloramines (NH2Cl) (applies to DPD-1 only)

Monochloramine interferences are known to occur in free chlorine DPD methods. This interference is dependent on temperature and monochloramine concentration.

Ozone, O

Color similar to free chlorine reaction at all levels.

Peroxides

Interference is possible.

Typical pH samples of potable water with a pH of 6.0 to 9.0 are OK. If outside this range adjust to pH 6.0 to 7.0 using acid (0.5N Sulfuric acid) or base (0.5N Sodium hydroxide).

Page 20

TURN METER ON

Press the button to power the meter on; the display will show annunciators, followed by the current selection. It will then display the last reading.

RINSE & FILL CELL WITH SAMPLE

Rinse the CELL at least 3 times with the water sample you will be testing—rinsing minimizes the potential for cross–contamination from a previous test. Finally, ll CELL to capacity with the water sample. Tilt meter to discard about 0.2mL water to leave room for liquid reagent.

SELECT GROUP & MENU

Press and re–press the button to Select Group. Press and re–press the button to select the test parameter (see chart on page 10–11).

ADD DROPS

Using the selected bottle of reagent add the required drops (see chart on page 10–11) and cover the CELL with the CELL COVER. Precaution: Ensure that the bottle is straight when

dispensing drops.

ZERO METER*

Press the button. The cursor will move across the display followed by 0.00 PPM. This will indicate that the sample is ready for testing.

DIP STRIP & PRESS READ

Using the required strip (see chart on page 10–11), dip strip into the CELL, and immediately press to initiate a 20 second countdown. Move the strip using a gentle back and forth motion (approx. 2 strokes/sec). Remove and discard the strip after “1” on the display disappears*. The meter will automatically start to count up. The count up time will vary for each parameter. At the end, the cursor will move across the display while the meter prepares to measure the sample. Record the value displayed for the respective parameter This value is automatically stored in its MENU and if using the eXact iDip® app, the result will be saved in the app’s ‘HISTORY. After testing, rinse CELL immediately and clean with the brush. After Sulde testing: rinse CELL with Distilled White Vinegar, 0.1N HCl, or Muriatic Acid and clean with brush.

Aluminum, Ammonia & Sulde test procedure

Aluminum, Ammonia & Sulde (SPECIAL NOTES)

Aluminum — A. First, clean the CELL with 0.1N HCl, Distilled Vinegar (5%), or Muriatic Acid before

filling the meter with the sample to be tested. B. If running multiple tests in a row, using the same water sample, the CELL does not have to be rinsed or cleaned with acid between each test. It is

recommended that the CELL be rinsed 3 times with the sample water.

Ammonia — The calibration of the meter is based on a water temperature between 14°C (57°F) and

28°C (82°F). If temperature is below 14°C (57°F), your final Ammonia value may read low.

Sulde — A. For results as Hydrogen Sulfide (H2S), multiply the resulting value by 1.06. B. The calibration of the meter is based on the water sample temperature above 20°C (68°F). If the water sample is below 20°C (68°F), the strip has to dip in the sample for an additional 10 seconds.

Follow the steps to ‘SELECT CUSTOMER’ & ‘CONNECT DEVICE VIA BLUETOOTH’ before proceeding (see page 8).

*For best accuracy, when testing outdoors in sunlight, place cap over cell cover

Page 21

TURN METER ON

Press the button to power the meter on; the display will show annunciators, followed by the current selection. It will then display the last reading.

REMOVE STRIPS

Remove 1 eXact® Strip Micro CN–1 Part No. 486812–A and eXact® Strip Micro CN–2 Part No. 486812–B from the bottle before beginning the test. Set the strips in a dry, convenient place and recap the bottle immediately.

RINSE & FILL CELL WITH SAMPLE

SELECT GROUP & MENU

Press and re–press the button to Select Group 2. Press and re–press the button to select the test parameter (see chart on page 10–11).

Cyanide test procedure

Follow the steps to ‘SELECT CUSTOMER’ & ‘CONNECT DEVICE VIA BLUETOOTH’ before proceeding (see page 8).

ZERO METER*

Press the button. The cursor will move across the display followed by 0.00 PPM. This will indicate that the sample is ready for testing.

DIP STRIP & PRESS READ

Dip the CN–1 strip into the CELL, and immediately press . This starts the 30 Second countdown timer. Because the strip is 8 mm wide, the strip will need to be angled to t in the cell. Be sure that the test pad is fully submerged. During this time, move the strip in a gentle back and forth motion (approx. 2 strokes/sec). Remove and discard the strip after ‘1’ on

the display disappears*. The cursor will move across the display, at this point have your CN–2 strip ready to dip into the CELL.

When the 30 Second countdown starts, immediately dip the CN–2 strip into the CELL. During this time, with the strip angled slightly, move the strip in a gentle back and forth motion (approx. 2 strokes/sec). Remove and discard the strip after ‘1’ on the display disappears.

The meter will automatically start to count up to 600 seconds. At 600 seconds, the cursor will move across the display while the meter prepares to measure the sample. Record the result displayed. This result is automatically stored in CN MENU, and if using the eXact iDIp® app, will be stored in the app’s ‘HISTORY’.

After testing, rinse CELL immediately and clean with the brush.

NOTE: The calibration of the meter is based on a water temperature between 20°C (68°F) and 25°C (77°F). If temperature is below 20°C (68°F), your nal Cyanide value may read low.

*For best accuracy, when testing outdoors in sunlight, place cap over cell cover

Page 22

ZERO METER*

Press the button. The cursor will move across the display followed by 0.00 PPM. This will indicate that the sample is ready for testing.

DIP STRIP & PRESS READ

Dip the eXact® Strip Micro FE (TPTZ) (Part No. 486631) into the CELL and immediately press . This starts the 20 second countdown timer. During this time, move the strip in a gentle back and forth motion (approx. 2 strokes/sec). Remove and discard the strip after ‘1’ on the display disappears*. The meter will automatically start to count up for 40 seconds. At the end, the cursor will move across the display while the meter prepares to measure the sample. Record result displayed (this value is automatically stored in the FE MENU, and if using the eXact iDip® app, will be stored in the app’s ‘HISTORY’).

After testing is completed, rinse CELL immediately and clean with brush.

Total Iron test procedure

Total Iron (SPECIAL NOTES)

To ensure accurate results, do not run this test immediately after a sulde test

TURN METER ON

Press the button to power the meter on; the display will show annunciators, followed by the current selection. It will then display the last reading.

RINSE & FILL CELL WITH SAMPLE

SELECT GROUP & MENU

Press and re–press the button to Select Group. Press and re–press the button to select the test parameter (see chart on page 10–11).

ADD REDUCER

Tilt the meter to discard about 0.2 mL sample in order to leave room for reagent. Add the contents of one eXact® Reagent EZ Open REDUCER (Part No. 486601) to the CELL and cover the CELL with the mixing cap. Press to start the 20 second countdown timer. Place thumb over CELL COVER to secure in place and mix the sample by turning the meter upside–down repetitively. When countdown displays ‘1’, hold the meter upright and the cursor will ash. At this time the meter will begin a 40 second count up. After the count up, a result will be displayed (ignore this result).

Total Iron — A. First, clean the CELL with 0.1N HCl, Distilled Vinegar (5%), or Muriatic Acid before

filling the meter with the sample to be tested. B. If running multiple tests in a row, using the same water sample, the CELL does not have to be rinsed or cleaned with acid between each test. It is recommended that the CELL be rinsed 3 times with the sample water.

Follow the steps to ‘SELECT CUSTOMER’ & ‘CONNECT DEVICE VIA BLUETOOTH’ before proceeding (for instructions, see page 8).

*For best accuracy, when testing outdoors in sunlight, place cap over cell cover

Page 23

TURN METER ON

Press the button to power the meter on; the display will show annunciators, followed by the current selection. It will then display the last reading.

High Range Chloride test procedure

This test requires a 1:20 dilution of the salt system sample – Mini Dilution Kit (Part No. 487202)

PREPARE SAMPLE FOR TESTING

Using the Mini Dilution Kit (Part No. 487202) and Distilled or Deionized (salt–free water) prepare a 1 to 20 (1:20) dilution of your sample.

Follow the steps to ‘SELECT CUSTOMER’ & ‘CONNECT DEVICE VIA BLUETOOTH’ before proceeding (see page 8).

PREPARE DILUTION SAMPLE

1. Rinse the syringe 3 times with salt system sample that you want to test by moving the plunger up and down.

2. Rinse 50 mL graduated conical tube with distilled or deionized (salt–free) water.

3. Rinse the 3.0 mL syringe with water sample to be tested. Fill the 3.0 mL syringe to the 2.0 mL line precisely

(plunger ring should line up at the 2.0 mL line and little or no air bubble should be present).

4. Add the syringe content (2.0 mL salt system sample) to the clean 50 mL graduated conical tube by pushing the plunger all the way down to expel sample.

5. Fill the graduated conical tube to the 40 mL line with distilled or deionized (salt–free) water and place cap on top.

6. Mix content of graduated conical tube by turning upside down at least 3 times.

Sample is now ready for testing.

REMOVE STRIPS

Remove 1 eXact® Strip Micro Chloride III Part No. 486757 from the bottle before beginning the test. Set the strip in a dry, convenient place and recap the bottle immediately.

SELECT GROUP & MENU

Press and re–press the button to Select Group. Press and re–press the button to select the test parameter (see chart on page 10–11).

RINSE & FILL CELL WITH SAMPLE

Using the 1:20 Dilution Sample prepared above, rinse the CELL 3 times. Then ll the CELL to capacity with the 1:20 Dilution Sample.

ZERO METER*

Press the button. The cursor will move across the display followed by 0.00 PPM. This will indicate that the sample is ready for testing.

*For best accuracy, when testing outdoors in sunlight, place cap over cell cover

DIP STRIP & PRESS READ

Dip the Chloride III strip into the CELL, and immediately press . This starts a 20 second countdown timer. During this time, move the strip in a gentle back and forth motion (approx. 2 strokes/sec). Remove and discard the strip after ‘1’ on the display disappears*. The cursor will move across the display, while the meter measures the sample. Record the result displayed (this result is automatically stored in CH MENU and, if using the eXact iDip

app, will be stored in ‘History’). If result is greater than 999ppm (ex. 1250ppm), a small “0” will appear at far right of the display. This “0” represents the one’s digit (see image at right). After testing is completed, rinse CELL immediately and clean with brush.

Page 24

Remove 1 Part No. 484014 and (DPD–1)Part No. 486633 strips from the bottle before beginning the test. Set the strip in a dry, convenient place and recap the bottle immediately.

TURN METER ON

Press the button to power the meter on; the display will show annunciators, followed by the current selection. It will then display the last reading.

RINSE & FILL CELL WITH SAMPLE

SELECT GROUP & MENU

Press and re–press the button to Select Group 5. Press and re–press the button to select he test parameter Cd4 (see chart on page 10–11).

DIP STRIP & PRESS READ

Dip the Glycine strip into the CELL, and immediately press . This starts a 20 second countdown timer. During this time, move the strip in a gentle back and forth motion (approx. 2 strokes/sec). Remove and discard the strip after ‘1’ on the display disappears*. The cursor will move across the display, while the meter measures the sample, when a result appears, ignore value and continue to step 6.

DIP STRIP & PRESS READ

Dip the CD (DPD–1) strip into the CELL, and immediately press . This starts a 20 second countdown timer. During this time, move the strip in a gentle back and forth motion (approx. 2 strokes/sec). Remove and discard the strip after ‘1’ on the display disappears*. The cursor will move across the display, while the meter measures the sample. Record the result displayed (this result is automatically stored in Cd MENU and, if using the eXact iDip

app, will be stored

in ‘History’). After testing is completed, rinse CELL immediately and clean with the brush.

Chlorine Dioxide test procedure

ZERO METER*

Press the button. The cursor will move across the display followed by 0.00 PPM. This will indicate that the sample is ready for testing.

Follow the steps to ‘SELECT CUSTOMER’ & ‘CONNECT DEVICE VIA BLUETOOTH’ before proceeding (see page 8).

*For best accuracy, when testing outdoors in sunlight, place cap over cell cover

Page 25

REMOVE STRIPS

Remove 1 eXact® Strip Micro Mn#1 Part No. 481020–1 and eXact® Strip Micro Mn#2 Part No. 481020–2 strips from their foil packets before beginning the test. Also shake the bottle of eXact® Reagent MN and remove the cap. Set the strip in a dry, convenient place and recap the bottle immediately.

TURN METER ON

Press the button to power the meter on; the display will show annunciators, followed by the current selection. It will then display the last reading.

RINSE & FILL CELL WITH SAMPLE

SELECT GROUP & MENU

Press and re–press the button to Select Group 1 or 6. Press and re–press the button to select the test parameter MN (see chart on page 10–11).

ADD DROPS

Add 3 drops of eXact® Reagent MN to the CELL (Precaution: Ensure the bottle is straight while dispensing drops) and cover with the CELL COVER. When the 20 second countdown

starts, place thumb over the cover and mix the sample by turning the meter upside–down repetitively during the countdown. When timer displays ‘1’, place the meter upright and the cursor will ash. The meter will begin a 120 second count up. After 120 seconds, the cursor will move across the display while the meter measures the sample*. Record the result displayed (this result is automatically stored in MN MENU and, if using the eXact iDip

app,

will be stored in ‘History’). After testing is completed, rinse CELL immediately and clean with the brush.

DIP STRIP & PRESS READ

Dip the Mn#1 strip into the CELL, and immediately press . This starts a 20 second countdown timer. During this time, move the strip in a gentle back and forth motion (approx. 2 strokes/sec). Remove and discard the strip after ‘1’ on the display disappears*. The cursor will move across the display, informing you prepare to dip the Mn#2 strip. When the next 20 second countdown starts, dip the Mn#2 strip immediately the into the CELL using the same gentle back and forth motion (approx. 2 strokes/sec). Remove and discard the strip after ‘1’ on the display disappears*. The meter will automatically start to count up to 20 seconds. After 20 seconds, the cursor will move across the display and the display will automatically zero.

Manganese test procedure (combination strip and drop test)

Follow the steps to ‘SELECT CUSTOMER’ & ‘CONNECT DEVICE VIA BLUETOOTH’ before proceeding (see page 8).

*For best accuracy, when testing outdoors in sunlight, place cap over cell cover

Page 26

TURN METER ON

Press the button to power the meter on; the display will show annunciators, followed by the current selection. It will then display the last reading.

REMOVE STRIPS

Remove 1 eXact® Strip Micro NO3 Part No. 486655 from the bottle before beginning the test. Set the strip in a dry, convenient place and recap the bottle immediately.

RINSE & FILL CELL WITH SAMPLE

SELECT GROUP & MENU

Press and re–press the button to Select Group 7. Press and re–press the button to select the test parameter TR1 (see chart on pages 10–11).

Nitrate (salt water > 4000 ppm) test procedure

Follow the steps to ‘SELECT CUSTOMER’ & ‘CONNECT DEVICE VIA BLUETOOTH’ before proceeding (see page 8).

ZERO METER

Press the button. The cursor will move across the display followed by 100 %T. This will indicate that the sample is ready for testing.

DIP STRIP & PRESS READ

Dip the NO3 strip into the CELL, and immediately press . This starts the 20 second countdown timer. Be sure that the test pad is fully submerged. During this time, move the strip in a gentle back and forth motion (approx. 2 strokes/sec). Remove and discard the strip after ‘1’ on the display disappears. Time the reaction in the CELL for 580 seconds (no timer provided). During this time, the meter will shut off. When 580 seconds have elapsed, turn meter on and wait for the display to show the last reading. Then press to initiate a 20 second countdown.

RECORD RESULT

The cursor will move across the display while the meter measures the sample. Record the value displayed. This value is automatically stored in TR1, and if using the eXact iDip® app, the result will be stored in the app’s ‘HISTORY’.

USE TABLE

Find the TR1 result in the table below to determine the Nitrate concentration in ppm. EXAMPLE: A TR1 result of 65.3 (round to 65) equals a Nitrate value of 23 ppm).

eXact® Strip Micro Nitrate NO3 — for 4 mL samples

%T 9 8 7 6 5 4 3 2 1 0

90 0 0 0 5 5 6 7 7 8 8

80 9 9 10 11 11 12 12 13 13 14

70 14 15 16 16 17 17 18 18 19 19

60 20 20 21 21 22 22 23 23 24 24

50 25 25 26 26 27 27 28 28 29 29

40 30 30 31 32 32 33 33 34 34 35

30 35 36 36 37 37 38 38 39 40 40

20 41 42 42 43 43 44 44 45 46 46

10 47 48 49 49 50 51 52 52 53 54

83 55 56 57 58 59 60 >60 >60 >60 >60

BT 090315

*For best accuracy, when testing outdoors in sunlight, place cap over cell cover

Page 27

Tips for Best Accuracy

Our lab testing with the Micro 20 meter has shown that zeroing and measuring of the sample normally does not require any cell cover for accurate results, except in sunlight. To obtain optimal accuracy when testing with the meter outdoors (sunlight), use the Mixing Cap/Cell Cover when zeroing and reading the sample.

Become familiar with the meter and the different tests by reading the instructions carefully.

The Free Chlorine, Combined Chlorine, and Total Chlorine reagents are compliant for meeting USEPA (4500–Cl G); ISO 7393/2; and German DIN 38408 G4–2 requirements.

Observe the dip time (as required for the test) for accurate results.

Test immediately after lling the CELL with water sample when testing for oxidizers such as Chlorine and Bromine (Ozone can be measured in CL3 MENU).

Be sure the CELL is lled to capacity, especially for pH and Total Alkalinity.

Rinse the CELL with clean water immediately after completing each test. Some reagents may stain the CELL if not rinsed shortly after use. Other reagents including Cyanuric Acid, Chloride, and Calcium Hardness may coat the CELL wall. It is recommended, after these tests, to use the Cell Cleaning Brush with water to clean the CELL.

Just before testing, rinse the sample CELL with the sample water several times to get a representative sample. (Use deionized or distilled water for rinsing if you have a limited amount of sample).

Store the meter and all test materials out of direct sunlight and away from chemical storage areas.

Minimize exposure of meter and test reagents to heat above 100°F (38°C).

Dry the outside of the meter when testing is complete or before storage of the meter.

When running a DPD–1 Free Chlorine test AFTER a Total Chlorine DPD–3, a Total Chlorine DPD–4, or a HR Chlorine test, rinsing is very important to remove residual KI, which may interfere.

Each eXact® Strip Micro is valid for ONLY one test. Discard strip after single use in regular refuse that is inaccessible to children and pets.

Each bottle of eXact® Strip Micro contains the quantity of strips notated on the bottle. Due to the strip slitting process, you may nd one or two strips that are noticeably smaller or larger in width than the normal strips in the bottle. These should be discarded. Using these strips may give unreliable results.

Each table supplied has a unique revision number located in the bottom right corner of the table. We recommended that you visit www.sensafe.com regularly for any updated revisions.

The eXact® Micro 20 Meter is not compatible for use with DPD–1, DPD–3, and DPD–4 powder

pillows, tablets, and liquids available from other manufacturers. Accurate results can only be guaranteed by using genuine eXact® Micro strips or reagents (reorder information on page 19).

Remove batteries when meter is not used for more than a month (Warranty Requirement).

It is recommended that Pool and Spa samples for oxidizers (such as Chlorine) be taken 18 inches below the surface as follows: submerge meter with open cell facing down 18 inches, and then turn meter upright at that depth to ll the cell. Remove meter from water with the sample for testing.

10.

11.

12.

13.

14.

15.

16.

17.

18.

Page 28

About the Accuracy/Calibration of the eXact Micro 20 System

eXact® Strip Micro DPD–1 Accuracy

All tests have been calibrated using certified reference standards and standard analytical

spectrophotometric methods. The algorithms in the software reflect the best correlation of the eXact® Micro 20 Systems against the AWWA, US EPA , DIN, and ISO reference test methods for chlorine. Studies show that the eXact® Micro 20 System repeatedly agrees with an EPA Compliant reference method greater than 99% (R2= 0.99948, 0 – 5.00 ppm – see below). The eXact® Micro 20 Advanced Photometric System has been factory calibrated for your convenience. You can expect the fixed calibrations in the meter to be valid for the life of the meter because of the quality, Long–Life LED, the photo cell, and the software as written into the meter. This is why the meter comes with a 2–Year Warranty.

Free Chlorine results are compared using the eXact

Strip Micro CL (DPD–1) with the eXact® Micro 20 Meter in MENU CL and Hach® DR890 Colorimeter in Program 9 and Program 12 using Hach® powder pillows.

NOTE: Values reflect current concentrations as found at time of manufacture and may change with consecutive lots.

y = 0.9814x

= 0.99948

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

ITS Free Chlorine, ppm

Hach Free Chlorine, ppm

DPD Free Chlorine stud , March 20, 2012

Hach vs ITS

Linear (Hach vs ITS)

Assigned Value for Ready Snap™ Solution

Ready Snap™ Lot

Desired

Value (%T)

Acceptable

Value (%T)

Select Group

Red Dye #505 17.1 16.5 – 17.5 7 TR1

Blue Dye #506 22.0 21.0 – 23.0 7 TR2

R040615-BT

Page 29

Accessories / Kits

Mini Dilution Kit II (Part No. 487202) Instructions

Standard Kit (486700–K)

Kit includes:

• 1 eXact® Micro 20 Meter (486700)

• eXact® Strip Micro DPD–1 (486637–25)

• eXact® Strip Micro DPD–3 (486638–25)

• Mini Dilution Kit II (487202)

• 1 Mixing Cap

• 1 Cell Cleaning Brush

• Instruction Booklet

• Plastic Carrying Case

• Plastic Stirrer

Well Driller Kit (486700–WD)

Kit includes:

• 1 eXact® Micro 20 Meter (486700)

• eXact® Strip Micro DPD–1 (486637–25)

• eXact® Strip Micro DPD–3 (486638–25)

• eXact® Strip Micro pH (486639–25)

• eXact® Strip Micro Total Alkalinity (486641–25)

• eXact® Strip Micro Copper (486632–25)

• eXact® Strip Micro Nitrate (486655–25)

• eXact

Strip Micro Manganese (486606)

• eXact

Strip Micro Total Hardness, HR (486656–25)

• eXact® Strip Micro High Range Chlorine (486672–25)

• eXact® Strip Micro Total Iron, TPTZ (486650–25)

• Mini Dilution Kit II (487202)

• 1 Mixing Cap

• 1 Cell Cleaning Brush

• Instruction Booklet

• Plastic Carrying Case

• Plastic Stirrer

Pool Kit (486700–KP)

Kit includes:

• 1 eXact® Micro 20 Meter (486700)

• eXact® Strip Micro DPD–1 (486637–25)

• eXact® Strip Micro DPD–3 (486638–25)

• eXact® Strip Micro pH (486639–25)

• eXact® Strip Micro Total Alkalinity (486641–25)

• eXact® Strip Micro Copper (486632–25)

• eXact® Strip Micro Nitrate (486655–25)

• eXact® Strip Micro Total Iron, TPTZ (486650–25)

• eXact® Strip Micro Calcium Hardness (486629–25)

• eXact® Strip Micro Phosphate (486814–25)

• eXact® Strip Micro Chloride (486757)

• eXact® Reagent Cyanuric Acid (481652–II)

• eXact® Strip Micro Biguanide (486810–25)

• Mini Dilution Kit II (487202)

• 1 Mixing Cap

• 1 Cell Cleaning Brush

• Instruction Booklet

• Plastic Carrying Case

• Plastic Stirrer

HOW TO PREPARE A 1:20 SAMPLE USING THE 3 mL SYRINGE (DILUTION FACTOR OF 20)

1. Rinse the syringe 3 times with water sample that you want to test by moving the plunger up and down.

2. Rinse 50 mL graduated conical tube with distilled or deionized (salt–free) water.

3. Fill the 3 mL syringe to the 2 mL line by pulling up water sample to be tested with an upward motion of the plunger until you get to the 2 mL line. NOTE: The plunger ring should line up a the 2 mL line.

4. After adding sample to the cylinder, ll the graduated cylinder to the 40 mL line with distilled or deionized

(salt–free water. Securely put the cap on the cylinder.

5. Mix content of graduated conical tube by turning upside down at least 3 times.

Volume in syringe Volume lled in cylinder Dilution factor

1.0 mL 40 mL 40

1.0 mL 30 mL 30

1.0 mL 20 mL 20

0.5 mL 25 mL 50

0.5 mL 50 mL 100

0.5 mL 50 mL 250

CALCULATION:

Test Result x Dilution Factor =

Actual Result

Other dilutions possible with the 3 mL syringe

eXact Micro Carrying Case with Foam (486001)

Dilution Kit (487200)

Ready Snap™ 3 (486903)

Page 30

Notes

Page 31

EPA COMPLIANT

PARAMETER / TEST PART #

RANGE

(ppm)

BEST

ACCURACY

# OF

TESTS

Alkalinity, Total (drinking water) 486641 9 – 210 7.5 100

Alkalinity, Total (pool water) 486641 8 – 200 7.5 100

Aluminum 486821 0.01 – 1.2 13 50

Ammonia 486654 0.02 – 2.4 5 25

Biguanide 486810 1.6 – 210 7.5 50

Bromine (DPD–1) 486636 0.01 – 12 5 100

Calcium (as CaCO

) 486629 20 – 400 6 50

Chloride (as NaCl) 486757 3 – 300 8 25

Chloride (as NaCl) High Range 486757 60 – 6000 15 25

Chlorine Dioxide (DPD–1) 486633 0.01 – 10 5 100

Chlorine, Free (DPD–1) 486637 0.01 – 6.2 3 100

Chlorine, High Range 486672 1 – 300 5 100

Chlorine, Combined (DPD–3)** (525 nm) 486638 0.01 – 6.2 3 50

Chlorine, Total (DPD–4) 486670 0.01 – 6.2 3 50

Chromium (VI) 486614 0.01 – 1.8 5 50

Copper (Cu

) 486632 0.01 – 11 2 50

Cyanide 486812 0.01 – 1.1 13 50

Cyanuric Acid 481652–II 7 – 110 8 60

Fluoride 486643 0.04 – 1.5 15 50

Hardness, Total HR (as CaCO

)(525 nm) 486656 60 – 600 12 100

Hardness, Total LR (as CaCO

)(525 nm) 486630 1 – 80 10 50

Hydrogen Peroxide 486648 0.3 – 100 8 100

Iron, Total (TPTZ) 486650 0.03 – 6 3 50

Manganese 486606 0.01 – 1.5 6 24

Molybdate 486653 0.01 – 3 5 50

Nitrate (as NO

) 486655 0.1 – 30 15 50

Nitrate (as NO

for Saltwater) (salt>400ppm) 486655 0 – 90 15 50

Nitrite (as NO

) 486623 0.01 – 1.8 5 50

Ozone (DPD–4) 486634 0.01 – 2 4 100

Peracetic Acid Low (DPD–4) 486674 0.01 – 6 3 100

Permanganate (DPD–1) 486626 0.01 – 5 2 100

pH 486639 5.8 – 8.5 pH 0.2 pH 100

Acid PH 486624 3.2 – 6 pH 0.3 pH 50

Alkali PH 486609 7.2 – 9.8 pH 0.3 pH 50

Phosphate (as PO

) 486814 0.03 – 4.4 4 50

Quaternary Ammonia Compound QAC 486823 2 – 80 6 50

Sulfate (as SO

) 486608 2 – 210 10

Sulde (as S2–) 486818 0.01 – 1.6 6

Turbidity N/A 4 – 900 NTU N/A

N/A

Because most of our products are test strips or use reagents that have little or no hazard in the quantity sold, MSDS sheets are not

supplied with the test. The exceptions are the Manganese (486606) test, which comes with 2 strips and one liquid reagent (PAN);

Fluoride (486643) test, which is a liquid reagent (SPADNS); and Iron (486650) test, which is a powder reagent.

†

Value provided represents best possible accuracy under laboratory conditions, but may vary throughout the detec-

tion range. For a complete list of accuracies throughout all ranges please visit sensafe.com/micro20/specications.

Available reagents / Reorder information

Page 32

Industrial Test Systems, Inc.

1875 Langston Street, Rock Hill, SC 29730

1–800–861–9712—Inside the U.S.A. 1–803–329–9712—Outside the U.S.A.

Fax:1–803–329–9743 Email: ITS@SENSAFE.COM WWW.SENSAFE.COM

ITS EUROPE, LTD

The UK Centre for Homeland Security Building 7, Chilmark Salisbury, Wiltshire, SP3 5DU, United Kingdom Phone: +44 (0)1722 717911 Fax: +44 (0) 1722 717941

Email: ITSEUROPE@SENSAFE.COM WWW.ITSEUROPE.CO.UK

Visit us on–line at sensafe.com/micro20

for up–to–date product information and NEW tests available

SENSAFE ITSSENSAFE

Revision 09/09

/2015

MANUFACTURED BY

eXact Micro 20 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual