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Operation
Instrument Controls Menu
PMT Supply
3-26
Model 42i Trace Level Instruction Manual
Ozonator
The Ozonator screen is used to turn the internal ozonator on or off. The
display shows the status of the control line that turns the ozonator on or
off. The next line of the display shows the user-specified ozonator setting.
Under most conditions, the control line status and ozonator set status are
the same. However, as a safety precaution, the microprocessor can override
the user-specified ozonator setting. This occurs only if the ozonator flow
doesn't indicate any flow or if the NO
minimum alarm limit. In this case, an alarm is activated and the ozonator is
turned off. This is done to prevent the ozonator from overheating, which
will result in permanent damage to the ozonator, or if the converter
temperature drops below the minimum limit, which reduces the
effectiveness of the ozone destruct.
It is possible, however, to override the ozonator shut-off due to converter
temperature being out of range, by setting the ozonator safety "OFF" in the
"Service Mode".
Note The ozonator must be "ON" to obtain NO, NO
readings. As an additional safety precaution, a lit LED mounted on the
measurement interface board indicates that the ozonator is on.
In the Main Menu, choose Instrument Controls > Ozonator.
●
The PMT Supply screen is used to turn the PMT power supply on or off.
This is useful in a troubleshooting situation.
In the Main Menu, choose Instrument Controls > PMT Supply.
●
OZONATOR:
CURRENTLY:
SET TO:
TOGGLE VALUE
RANGE
AVG
DIAGS ALARM
converter temperature is below the
2
, and NO
2
OFF
ON ?
Thermo Fisher Scientific
x
▲
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Troubleshooting
