Bird Technologies SA-6000EX - Manual (Page 120)

Bird Technologies
104
Zeroing Bird Power Sensors
Over time, the sensor’s “zero value” (reading with no applied RF
power) can drift, making all readings inaccurate by this value. For
example, if the zero value is –2 µW, measuring a 5 mW signal will give
a reading of 4.998 mW, a 0.04% error. Periodically re-zero the sensor.
This applies to 5011 and 5012 power sensors.
Note: For best results, make sure the sensor has been con-
nected to the Site Analyzer and the SA turned on for at least 5
minutes. Do not apply RF power to the sensor during calibration.
CAUTION
When using a Bird 5011 or 5011-EF, do not exceed 2
W average or 125 W peak power for 5 µs. Doing so
will render the sensor inoperative.
Press from
Measure
Power Mode
Press to
begin the
calibration