Bird Technologies 4308 User Manual
Page 26
Care and cleanliness is a main factor in maintenance. If any of the contacts or line
connectors become dirty, they should be cleaned with a dry cleaning solvent that does
not leave a residue.
It is important to keep these areas clean:
I
All contact surfaces and especially the exposed faces of the Teflon insula-
tors.
I
The meter face and the housing, clean with a soft cloth dampened with a
mild detergent solution.
Repair and Replacement
Although the Model 4308 is designed to for long term, trouble free operation. In the
case of malfunction of the unit, the repair or replacement procedures in this section
should be followed.
+
Note: Do not perform unauthorized maintenance work
during the first year. It could be cause to void the
warranty.
Problem
Possible Cause
Correction
Intermittent
or Inconsis-
tent Meter
Readings
Faulty transmission line or
antenna
Inspect line
Sticky or defective meter
Replace or return wattmeter
to the factory for meter
replacement and calibration
Dirty dc contact on element
Clean contact
High VSWR
or Reflected
power
Bad load or poor connectors
Replace load, antenna or
connectors.
Shorted or open
transmission line
Service or replace line
Bird Model 4308 Thruline Wattmeter
"