HF scientific CLX Online Residual Chlorine Monitor - Manual (Page 33)

CLX (1/12) Page 28
REV 5.1
10.0 Routine Maintenance
10.1 Maintenance Schedule
The recommended schedule is shown below. It is important to replace the reagents on a
monthly basis to get reliable accurate readings from the CLX.
The CLX is shipped with one CLX Tubing/Cuvette kit, HF part # 09950. The kit consists
of the following:
Qty
Part
2 “A” Cap Assemblies
8 “B” Pump Tubes
1 Cuvette
Figure 6: Reagent Tubing Set
The drawing above shows one complete reagent tubing set (check valves not included in
kit). Two complete sets are used in the CLX; one for the buffer and one for the indicator.
The supplied kit is intended to last for one year. Additional kits can be ordered from your
local HF scientific distributor or representative. It is recommended to keep one kit on hand
at all times.
Generally, all “B” tubes should be replaced on a three month basis. The “A” Cap
assemblies and the cuvette should be replaced annually.
Every Month
1. The reagent required for operating this instrument must be changed on a monthly
basis (with a 2.5 minute cycle time).
2. The external strainer should be checked and cleaned if necessary
3. The glass cuvette should be inspected. Check for excessive debris on the inside
surface of the glass. It is suggested to keep a spare cuvette to replace when required.
The old cuvette may be cleaned, if possible, for future replacement.
Flushing the System
It is recommended that the tubings replacements be timed with reagent replacement. Press
the SERVICE button to stop the water flow. Remove old reagents and discard. Place the
inlet tubings in a small container of clean water. Press SERVICE to return to operation
mode, press PRIME and then  to flush the system with water. Remove the inlet tubings
from the water Press PRIME and then  to remove most of the water.
Tube"B"
Check Valve
Cap Assembly "A"
Flow