Bird Technologies 8890-400 Series - Manuale (Pagina 20)

Models 8897-400A, 8897-415B, and 8897-420B: The RF sec-
tion is unflanged. It is inserted into the transmission line
using an unpressurized straight coupling kit, P/N 5-726
RF
Connection
Follow the instructions below for flanged and unflanged
connections. While following these instructions, refer to fig-
ure 5.
For the models with flanged RF connectors, the center con-
ductor anchor bullet, P/N 4600-021 mates with the center
conductor of the 3-/18 inch EIA bolt-type flange. The mating
flange of the stationary line may be rigid because the con-
nector section has a swivel type flange.
1. Position the center conductor anchor bullet
with the insulators seated in the counterbores.
2. Fit the bolts to the coupling flange. Use six
screw and nut assemblies for attachment,
3/8-16 x 1-1/2 nut and screw assemblies are
recommended.
3. Tighten evenly all around to get a firm and
uniform contact on the periphery of the outer
conductor of both flanges.
For models with unflanged connectors, the connector bullet
mates with the center conductor of the 3-1/8 inch 50 ohm co-
axial transmission line.
1. Insert the bullet firmly in the center conductor
of the wattmeter’s connector.
2. Push the the bullet firmly until it bottoms in
the conductor.
3. Slide the outer conductor sleeves over the
transmission line.
4. Insert the connector into the transmission line.
Both ends of the bullet should be firmly seated
in the center conductor with the connector of
the wattmeter butted snugly against the trans-
mission line.
5. Tighten the clamping bands.
10
Bird Model 8890-400 Series Termaline Wattmeter