2 replacing or installing the reagents – HF scientific CLX Online Residual Chlorine Monitor User Manual

Page 35

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background image

CLX (1/12)

Page 30

REV 5.1

INLET

CHECK

VALVES

CAP ASSEMBLY "A"

PUMP

HAMMER

AND SPRING

THUMB

SCREW

REAGENT

PUMP

ASSY

INLET

OUTLET

FLOWy

CHECK VALVE DETAIL

OPTICS SYSTEM

KNURLED TOP

CUVETTE
RETAINING
O-RING

CAP ASSEMBLY "A"























Figure 7: Reagent Tubing Installation


10.2 Replacing or Installing the Reagents

Reagent kits are available from HF scientific for Free Chlorine and for Total Chlorine
Refer to section 11.0 Replacement Parts and Accessories for the appropriate Catalog
numbers. There

are two reagents required, and supplied in each kit; the buffer

and the

indicator.

The buffer and indicator reagents are provided as dry reagents and require the addition of
deionized water. You will need to have at least 1 liter of deionized water on hand prior to
preparing the solutions. Allow about ½ hour time to prepare the reagents.

Use caution while preparing. These reagents are caustic and can burn skin
and stain clothing. The use of protective gloves, clothing and eye protection is
highly recommended.

When commissioning the CLX it is recommended to follow the procedure in
section 10.3. This procedure only needs to be done once when first put into
service.

Buffer Reagent Preparation

Add about 400 ml of deionized water into the buffer bottle. Cap tightly and shake
vigorously until the powder is fully dissolved. When fully dissolved add enough deionized
water to bring the volume in the bottle up to the fill line.

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