Agilent Technologies 4418B Service Manual page 57

Preset
2. Press then
Local
3. On the power meter press
10 seconds for the wait symbol to disappear. Verify that the
display reads 0 ±50 pW.
4. Press to calibrate the power meter.
Cal
5. Turn the power reference on by pressing
Zero
,
Power Ref Off On
Cal
Zero
, ,
Cal
Cal
Agilent E4419B.
6. Connect the 30 dB attenuator as shown in Figure 2-6.
Power Meter
Figure 2-6: Sensor Functional Test Setup with Attenuator
System
7. Press ,
Inputs
This switches to the power sensor's low range.
8. Verify that the display reads -30 dBm ±1 dB. Record the reading.
9. Press Range and set to "UPPER". This switches to the power
sensor's upper range.
10. Verify that the display reads -30 dBm ±1 dB. Record the reading.
11. Press and set to "LOWER".
Range
12. Disconnect the 30 dB attenuator and reconnect as shown in
Figure 2-5.
13. Verify that an overload error is displayed on the status line at the
top of the power meter's display.
14. Press and set to "UPPER".
Range
15. Verify that the display reads 0 dBm ±1 dB. Record the reading.
Agilent E4418B/E4419B Service Guide
Agilent E-Series Power Sensor Functional Test
.
Confirm
Zero
,
Zero
Cal
on the Agilent E4418B.
,
More Power Ref Off On
Agilent E-Series
Power Sensor
Agilent 11708A
30 dB ATTENUATOR
CHANNEL A
, and select
Input Settings
Performance Tests
. Wait approximately
on the
11730A
to "LOWER".
Range
2-21