Bird Technologies 6151A - Manual (Page 16)

To remove the meter case:
1. Raise the buttons at the sides of the case, one at a time, to
lift the spring above the notch in the hook. Use a flat blade
screwdriver.
2. Pull the housing straight off of the radiator.
3. Place the meter in a position where the meter can be easily
read while the transmittter is being adjusted. The meter
may be read either standing or on its’ back.
To assemble the meter case:
1. Coil the dc cable so that it will allow the meter case to be
replaced properly on the load.
2. Engage the spring, first one button, then the other. The
second button will resist with stiff spring action.
3. Check for proper engagement by pulling on the meter case.
Input Connector
CAUTION
If other than Female N type connectors are used, limit power and frequency to the
capabilities of the RF coaxial cable or connectors used. Damage to connectors or errors in
reading could result.
The Model 6151A is normally supplied with a Female N type connector which is of
the Bird Quick-Change design. Other “QC” connectors are available and may be
purchased from Bird Electronic Corporation as required. A list of available connectors
is in Chapter 5 - Replacement Parts List.
The connectors are quickly changed by following the instructions below:
1. Remove the four 8-32 pan head machine screws from the
corners of the connector flange.
2. Pull the connector straight out.
3. Reverse this procedure to install a connector, making sure
the center contact pin is properly aligned with the socket.
Transmitter
Connection Connection to the transmitter is made through a suitable coaxial cable equipped with
appropriate RF connectors. It is advisable to keep the length of this cable as short
as possible.
1. Connect the wattmeter to the transmitter with a short
length of 50 ohm coaxial cable such as RG-58C/U (preferably
under 5 feet in length).
2. The wattmeter is ready to be used for power measurements.
+
Note: There may be a slight deviation in the electrical specifications if a
connector, other than a Female N type (normally supplied) is used.
Bird Model 6151A Termaline Wattmeter
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