User Manual

Test Equipment Calibration – continued
5/21/04 1X SC4812T–MC BTS Optimization/ATP F-23
DRAFT
This procedure must be done before the automated
calibration to enter power sensor specific calibration
values.
NOTE
Figure F-15: Power Meter Detail
CONNECT POWER
SENSOR WITH POWER
METER TURNED OFF
CONNECT POWER SENSOR
TO POWER REFERENCE
WHEN CALIBRATING UNIT.
POWER REFERENCE IS
ENABLED USING THE SHIFT ’
KEYS
SHIFT (BLUE) PUSHBUTTON –
ACCESSES FUNCTION AND
DATA ENTRY KEYS IDENTIFIED
WITH LIGHT BLUE TEXT ON
THE FRONT PANEL ABOVE
THE BUTTONS
FW0
0
Table F-17: HP 437 Power Meter Calibration Procedure
Step Action
1
! CAUTION
Do not connect/disconnect the power meter sensor cable with AC power applied to the meter.
Disconnection could result in destruction of the sensing element or mis–calibration.
Make sure the power meter AC LINE pushbutton is OFF.
2 Connect the power sensor cable to the SENSOR input.
3 Set the AC LINE pushbutton to ON.
NOTE
The calibration should be performed only after the power meter and sensor have been allowed to
warm–up and stabilize for a minimum of 60 minutes.
4 Perform the following to set or verify the correct power sensor model:
4a – Press [SHIFT] then [a] to select SENSOR.
4b – Identify the power sensor model number from the sensor label.
4c – Use the [y] or [b] button to select the appropriate model; then press [ENTER].
5 Refer to the illustration for step 8, and perform the following to ensure the power reference output is
OFF:
5a – Observe the instrument display and determine if the triangular indicator over PWR REF is
displayed.
5b – If the triangular indicator is displayed, press [SHIFT] then [’] to turn it off.
. . . continued on next page
F