HF scientific AccUView UV %Transmission Monitor - Manual (Page 32)

9.0 Routine Maintenance
9.1 Cleaning the Flow Through Cuvette
Measurement cuvettes used for the flow through should be clean and free of marks or
scratches. Cleaning is accomplished by cleaning the interior and exterior with a detergent
solution and then rinsing several times with distilled or de-ionized water. The cuvette can
be replaced by first shutting off the flow using the provided shutoff clamp; unscrewing the
old cuvette and replacing with a fresh clean one. Recalibration will be required for
accurate operation.
9.2 Replacing or Installing the Desiccant Pouch
The AccUView continuously checks the condition of the desiccant. When the desiccant
gets in such a condition that it may cause problems, the instrument will display DESC on
the lower portion of the display to indicate the presence of humidity.
Proper use of the supplied desiccant is essential in
maintaining the performance of the instrument. The
desiccant has been designed to have a long life; however,
replacement of the desiccant pouch will be required from
time to time.
It is essential that the enclosure seal on the instrument base
be maintained to ensure adequate desiccant life. Inspect the
seal each time the desiccant pouch is replaced. Replace or
reseat the seal if it is found to be defective.
The desiccant should be replaced when the instrument
displays DESC. A new sealed desiccant pouch and
indicator card are available from HF scientific part
#21555R.To initially install or remove the old desiccant,
simply unscrew the four corner thumbscrews and remove
the electronics half of the instrument. Open the bag
protecting the new desiccant pouch and replace (or install)
immediately. To speed up the recognition, by the
instrument, of the new desiccant it will be necessary to
reset the instrument by disconnecting the sensor
interconnect cable for 2 seconds and then reconnecting it.
Note: Once the bag is opened, install the desiccant pouch immediately to prevent premature
degradation of the desiccant.
9.3 Replacing the Source Lamp
The UV source lamp in the AccUView has a variable life dependant on the setting of the
Lamp Duty Cycle. See section 7.14
for more information on the lamp life
Due to safety concerns it is recommended that the electronic service module be exchanged
- Part# 01957S. Whenever the UV source lamp requires replacement an economical
exchange program is available. Call the HF Customer Service Department for assistance.
AccUView (6/10)
Rev. 4.0 27