Special Supplement
1
Keysight 11683AZ Option H01 Operating and Service Manual
9
All voltage calculations assume that the internal reference voltage has adjusted to
145.00 mVDC, with the range switch set at 1 mW position.
Performance Test
Internal DC reference
With REF SELECT switch in INT position, range switch performance can be tested as described in
the 11683A Operating and Service Manual (11683-90014). Power supply and FET balance
adjustments can also be performed as described in the 11683A Operating and Service Manual
(11683-90014).
External DC reference
Description:
Use the internal DC reference source to test the EXT. DC reference.
Equipment:
Recommended equipment for performing these tests are a digital voltmeter with 5 digits
resolution, a jumper (#18 awg or heavier wire), and a banana connector to the
BNC 4-wire cable.
Procedure
:
Set the range as follows:
1
Set the digital voltmeter controls for automatic DC voltage measurements.
2
Connect one end of the 4-wire cable to the digital voltmeter, and the other end to the DC
REFERENCE OUTPUT on the rear panel of the 11683AZ-H01, as shown in the 11683A
Operating and Service Manual (11683-90014).
3
Disconnect the 11683AZ-H01 Range Calibrat
or
from the power line and remove the
top cover.
4
Connect the jumper between the DC REF INPUT BNC white wire and the RANGE switch green
wire using an alligator test clip.
5
Set the REF SELECT switch to EXT.
6
Connect the 11683AZ-H01 Range Calibrator to the power line and turn it ON.
RANGE
100 mW
FUNCTION
STANDBY
POLARITY
NORMAL
