eXact Micro 7+ User Manual

4
DPD-1 Free Chlorine Test Procedure
1
6
5
2a
3
4
2b
Remove one (1) eXact
®
Strip Micro CL (DPD-1),
Part No. 486637 from the bottle before beginning
the test. Set the strip in a dry, convenient place and
recap the bottle immediately.
REMOVE STRIP
1
Press the ZERO/ON button to power the meter on;
the display will show all annunciators, then the
current MENU selection, followed by the last reading.
TURN METER ON
2
Dip the eXact
®
Strip Micro CL (DPD-1), Part No.
486637 into the CELL and immediately press READ.
This starts the 20 SECOND countdown timer. During
this time move the strip in a gentle back and forth
motion. Remove and discard the strip after “1” on
the display disappears.
DIP STRIP AND PRESS “READ”
6
Press the ZERO/ON button. The cursor will move
across the display followed by 0.00 PPM. Sample is
ready for testing.
ZERO METER
5
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, fill
cell to capacity (4ml) with the water sample.
RINSE AND FILL CELL WITH SAMPLE
4
Press and re-press the MENU button until the
display shows the parameter CL1.
CL1 is also used for testing:
Total Chlorine (DPD-4), Ozone (DPD-4), Permanganate (DPD-1), and
Total Chlorine (DPD-3). (Contact ITS for specs and details if you are
planning on using CL1 for Permanganate or Ozone measurements)
SELECT TEST: CL1
3
CL
CL1
The cursor will move across the display while the
meter prepares to measure the sample. Record result
displayed (this result is automatically stored in CL1).
RECORD RESULT DISPLAYED
7
DO NOT discard the sample from the Free Chlorine
test if you are planning to run eXact
®
Strip Micro DPD-3
(Total Chlorine) Procedure. Move directly to steps 8-10
on page 5. Otherwise, rinse the cell immediately.
For best results with this eXact
®
Micro 7+ Photometer and DPD-1 strips:
This version of the eXact
®
Micro 7+ meter has a range to 11ppm Chlorine. The algorithm for
Free Chlorine (CL1) with the use of DPD-1 strip gives most acurate results below 6ppm.
For Chlorine testing above 6ppm, you may use the eXact
®
Strip Micro HRC, Part No.
486672, product. This procedure can be found on page 9.

eXact Micro 7+ Specifications

General

Brand	eXact
Model	Micro 7+
Category	Measuring Instruments
Language	English