Bird Technologies SCC7 Series-Manual - Manual (Page 21)

7
Chapter 3 Operating Instructions
Normal Operation
Note: After setting up the Bird Cal Cart:
1. Connect the unit to the AC line, if necessary.
2. Press the ON/OFF button on the Bird 4421.
Note: The power up display will flash “4421” for approximately 10 seconds
and then change to the normal operating display.
Operating Loads with Attached Blowers
Note: For the 8931 and other loads with attached blowers ONLY.
1. Check that the indicator light is on.
2. Check that the switch is set to MANUAL.
3. Apply RF power.
4. Make measurements.
Note: See "4421 Operating Instructions" on page 9 for specific instructions on
controlling the meter.
Shutdown
1. Turn off RF power at the source.
2. Press the ON/OFF button on the 4421.
Note: For blower‐equipped loads, wait approximately 15 minutes or for the
fans to stop running. This will allow the load to cool without causing heat stress.
3. Disconnect the AC line.
WARNING
Never attempt to connect or disconnect RF equipment from the transmission line while RF power is being
applied. Leaking RF energy is a potential health hazard.
WARNING
Refer to the supplied load manual for load‐specific warnings and cautions.
CAUTION
Maximum power dissipation is severely reduced when the blower is not running. If the
indicator light should turn off, immediately reduce RF power by 75%.