Chemtrac Auto Clean UV254, Руководство пользователя, Страница: 36 / 41

Chemtrac UV254 Monitor
– UVM5000 v 2.1
Chemtrac, Inc. 35
15.2
Alarms and Warnings
Alarms and warnings related to lamp operation and analyzer status are list
ed under the “Alarms” menu.
Alarms and warnings need to be enabled under the “Set Alarms” menu in order to be displayed.
ALARM PROBLEM / CONDITION SOLUTION
Humidity
Humidity inside the analyzer is
approaching a level that could
cause condensation on the flow
cell if water temperature is low
enough.
The humidity alarm is tripped when the humidity level inside
the analyzer is greater than 25%RH. If the water
temperature is cold, then condensation could occur on the
flow cell windows at this level of humidity. The dehumidifier
included with the analyzer can be used to reduce the
humidity to a level that will prevent condensation no matter
what the water temperature.
If the sample water is warm, condensation on the flow cell
may not be likely. In this case it may be possible to ignore or
turn off the humidity alarm.
Lamp Off
Lamp output is too low to provide
accurate measurements.
The lamp may need to be replaced if the lamp use is close
to or more than 12,000 hours/18 months. Contact Chemtrac
for replacement.
Note that the lamp may take several minutes to ignite after
closing the door, especially after shipping.
Lamp High
The lamp output is too high and is
out of range of the sensor.
If a new lamp has been installed it may be necessary to
adjust the internal gain of the sensor. This can be performed
by adjusting lamp sensor and water sensor potentiometer
settings in the main menu. Note that higher potentiometer
values decrease the sensor values. Note that if adjustment
is necessary it is recommended to adjust both lamp and
water potentiometers by the same amount to ensure best
performance.
Lamp Low
The lamp output is low but not too
low for the analyzer to provide
accurate measurements. It is nearly time for the lamp to be replaced, however, the
lamp output is still high enough for the analyzer to produce
accurate measurements.
Leak Detection
A leak has been detected inside
the analyzer.
Immediately shut off the water flow to the analyzer.
Shut off the power to the analyzer after shutting off the water
flow.
Assess the damage inside the analyzer and call Chemtrac
for further instructions.
If the Auto Clean system is connected to the analyzer it will
have been signaled to shut of the water flow assuming no
electrical short has occurred. Note that the Auto Clean
system requires power and signals from the analyzer to shut
off the water flow.
Sensor Comm
There is a communication error
between the sensor and the main
board.
Check the ribbon cable for damage. Replace the cable if
damage has occurred.