HF scientific CLX Online Residual Chlorine Monitor - Manual (Page 37)

CLX (1/12) Page 32
REV 5.1
10.4 Cuvette Change
As recommended in section 10.1 Maintenance Schedule the cuvette should be inspected at
monthly intervals and replaced when needed.
To replace the cuvette, press the SERVICE key. When HOLD shows on the
screen, the system is ready.
The cuvette is spring loaded to allow for removal. Leave the cuvette retainer
(O-ring) in place while loosening top.
Loosen the knurled top until the cuvette pops out. Pull the cuvette retainer down to allow
for cuvette removal. Remove and replace or clean cuvette. Reverse the procedure to
replace. To avoid damage do not over tighten the knurled top. Press the SERVICE key to
return the system to normal sample flow and check for leaks.
10.5 Instrument Storage
If the CLX is relocated or will be inactive for more than 48 hours, remove the reagents.
Flush the reagent system as describe in 10.1 Maintenance Schedule. Place the instrument
in Service mode to drain the system then remove power by disconnecting the mains power
plug. It is usually a good idea to disconnect or shut off the source water.
10.6 Cleaning the CLX
Flush the system as mentioned in section 10.1 Maintenance Schedule. When the flushing
is finished, press the SEVICE button wait until the display reads HOLd.
As a mater of safety, always disconnect any power source to the CLX prior to attempting
any cleaning. It is recommended that the source water is also shut off.
Isopropyl alcohol (rubbing alcohol) on a soft cotton cloth works very well in removing
reagent stains from plastic parts, the key pad and the display. Use care when cleaning
around electrical components. Do not use any harsh cleaning agents as these may cause
damage to the instrument components.
Ensure that the system is dry prior to applying power.