Calibration; Chlorine Standards; Chlorine Calibration Procedure - LaMotte DC1500 Manual De Instrucciones

NOTE: The meter will remember the last scanned blank reading. It is not necessary
to scan a blank each time the test is performed. To use the previous blank reading,
instead of scanning a new one, scroll to Scan Sample and proceed. For the most
accurate results, the meter should be blanked before each test and the same tube
should be used for the blank and the reacted sample.

CALIBRATION

 CHLORINE STANDARDS
The meter should be calibrated with free chlorine standards. The calibration should
be done with a distilled or deionized water blank and one chlorine standard of known
concentration. The concentration of the calibration standard should be similar to
the expected concentration of the sample that will be tested.
To perform a bromine calibration, prepare a bromine with a concentration that is
equivenlent to a chlorine dioxide standard that is within the range of the chlorine
dioxide test. (1 ppm chlorine = 1.9 ppm bromine). Follow the procedure below but
select the bromine test.
Chlorine Secondary Standards (Code 4140-03) are available to verify the
performance of the meter.

CHLORINE CALIBRATION PROCEDURE

1. Press and briefl y hold
turn the meter on. The LaMotte
logo screen will appear for about
3 seconds and the Main Menu will
appear.
2. Press
ENTER
Menu.
3. Scroll to and select 025 Chlorine T
DPD from menu.
to
to select Testing
Main Menu
Testing Menu
Editing Menu
12:00:00
All Tests
015 Bromine L DPD
016 Bromine T DPD
024 Chlorine L DPD
025 Chlorine T DPD
12:00:00 001/500
025 Chlorine T DPD
Scan Blank
Scan Sample
12:00:00
9
001/500
001/500