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1500 - INITIAL DETERMINATION OF STANDARD VALUE

Perform this procedure once, when standards are received.

Follow the Calibration 
Procedure in the 
Colorimeter manual. 
Use one standard, as 
described, that has 
been titrated by an 
EPA accepted method 
(such as LaMotte 
Method 3176-02).

Insert the 
DPD Chlorine 
Color Standard 
Blank into the 
chamber, being 
sure to align 
the index line 
with the arrow 
on the meter. 
Close the lid.

Wipe the DPD Chlorine Color Standard 
A (4147-E) with a clean, lint-free cloth.

Select Scan Sample. 
The concentration will be 
displayed.

Wipe the DPD Chlorine Color Standard 
Blank (4136-E) with a clean, lint-free cloth.

Press 

 to turn the meter on. Press 

ENTER

 to select Testing Menu. Press 

ENTER

 to select All Tests Menu. Press 

ENTER

 to select All Tests. Scroll to and 

select Chlorine TT or Chlorine Liq 
DPD. Select Scan Blank.

Insert DPD 
Chlorine Color 
Standard A into 
the chamber, 
being sure to align 
the index line 
with the arrow on 
the meter. Close 
the lid.

Record the actual reading on the 
DPD Chlorine Color Standard A 
cap and on the Data Sheet, under 
initial  reading.

Repeat steps 5-8 for DPD Chlorine Color Standard B (4138-E) and DPD 
Chlorine Color Standard C (4139-E).

Chlorine TT

Scan Blank

Scan Sample
12:00:00                  001/500                 

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Summary of Contents for 4140-03

Page 1: ...e to be used as Chlorine Secondary Standards to verify the performance of the meter and are not intended to be used as calibration standards The meter is calibrated at the time of manufacture The stan...

Page 2: ...loth Press the READ button The concentration in ppm will be displayed within 2 seconds Wipe the DPD Chlorine Color Standard Blank 4136 E with a clean lint free cloth Push the READ button to turn the m...

Page 3: ...e a zero reading Wipe the DPD Chlorine Color Standard A 4147 E with a clean lint free cloth Press the READ button The concentration in ppm will be displayed within 2 seconds The reading should be with...

Page 4: ...he concentration will be displayed 015 Chlorine Scan Sample Wipe the DPD Chlorine Color Standard Blank 4136 E with a clean lint free cloth Press ON to turn the meter on Press ENTER to select START Pre...

Page 5: ...o the chamber being sure to align the index line with the arrow on the meter Close the lid Repeat steps 4 6 with DPD Chlorine Color Standard B 4138 E and DPD Chlorine Color Standard C 4139 E If the re...

Page 6: ...ill be displayed Wipe the DPD Chlorine Color Standard Blank 4136 E with a clean lint free cloth Press to turn the meter on Press ENTER to select Testing Menu Press ENTER to select All Tests Menu Press...

Page 7: ...he readings are not within the tolerance limits standardize the meter calibration by following the Calibration Procedure in the meter manual If the readings are still not within the tolerance limits t...

Page 8: ...ration will be displayed Wipe the DPD Chlorine Color Standard Blank 4136 E with a clean lint free cloth Press to turn the meter on Press ENTER to select Testing Menu Press ENTER to select All Tests Me...

Page 9: ...r Close the lid If the readings are not within the tolerance limits standardize the meter calibration by following the Calibration Procedure in the meter manual If the readings are still not within th...

Page 10: ...the dye standards being slightly different from the spectral qualities of DPD Readings of actual DPD chlorine reactions will not differ significantly between meters Contact LaMotte Company Technical...

Page 11: ...BLANK...

Page 12: ...TE COMPANY Helping People Solve Analytical Challenges PO Box 329 Chestertown Maryland 21620 USA 800 344 3100 410 778 3100 Outside U S A Fax 410 778 6394 Visit us on the web at www lamotte com 64140 03...

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