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