Meech 977HL, Руководство по эксплуатации

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Setting the Alarm Point
The 977HL features an adjustable alarm that will alert the operator when the Ion
Output of the ionising system falls below a desired level or when a system fault is
detected.
To set the Alarm Point.
1. Press to enter menu
2. Select option 4 “Alarm” and press
3. Use the up and down button to change the value
4. Press
to store the setting
Locking and Unlocking the Controls
The front panel controls of the 977HL can be locked to prevent unauthorised
adjustment of the ionising system. The lock code is a user selected three digit code. A
different code can be chosen each time the unit is locked.
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As the ionisers become contaminated, the Ion Output will slowly start to decrease and
will reduce the system’s performance. At this point the ionisers need cleaning.
To alert the operator to the need for cleaning, the 977HL will trigger an in-built audible
alarm and the LCD screen will flash on and off. A remote alarm can also be triggered
using the alarm relay connections on the output socket.
The alarm point is set as a percentage of maximum Ion Output. An initial value of 60%
is recommended.
The performance of the ionising system depends on being run at the correct power,
rate and balance. Unauthorised or accidental changes to any of these settings can
greatly reduce its effectiveness.