Operation
13
Terminating Power Sensor (TPS)
Zeroing Sensor
Over time, the sensor’s “zero value” (reading with no applied RF power) can
drift due to environmental factors (temperature, humidity, etc.) This can make
the readings performed by this sensor less accurate by the drift value. If the drift
would be a significant error, re zero the sensor.
1. Ensure the sensor has been connected to the DPM.
2. Press and hold “0” for two seconds to begin zero calibration.
Note: “Zero/Cal” will be displayed and calibration will begin.
Note: Zeroing the sensor takes 60 seconds. The bar graph will dis-
play calibration progress.
Note: When complete, “PASS” should be displayed.
3. Press Enter to return to normal operation when zeroing is complete.
Note: If “FAIL” is displayed, make sure no RF power is applied to
the sensor and perform the procedure again.
TPS-EF
The Bird TPS-EF uses frequency correction factors to allow more accurate
measurements. Look at the label on the side of the sensor and find the
correction factor for the frequency being measured. Add the correction factor
to the other attenuation or coupling factors and enter this as an offset.
CAUTION
Do not exceed 2 W average or 125 W peak power for 5 s when using the TPS
or the TPS-EF. Doing so will render the sensor inoperative.
To Next Page
Loading...
