HP 4284A - Page 414

The following is a list of the HP 4284A's error numb ers and
messages.
Operation Errors
Error
No.
Displayed Message  Description
! Solution
Device-Specic Error
10 Exceeded AC+DC limit  AC+DC level exceeds 42V or 110mA p eak.
! Reduce the LEVEL or BIAS setting.
11 ALC disabled  LEVEL setting is out of the ALC's available level range.
! Change LEVEL to b e within the ALC's available level
range.
12 power AMP opt not installed  Illegal op eration, Hi-PW mo de set to ON when Option 001
is not installed.
! Install Option 001.
13 Can't change Hi-PW mo de  Illegal op eration, Hi-PW mo de set to ON when the DC
BIAS is set to ON.
! Set BIAS to OFF(DC BIAS indicator is not ON)rst, then
set the Hi-PW mo de to ON.
 Illegal op eration, Hi-PW mo de set to OFF when the LEVEL
is more than 2V/20mA, or the BIAS is more than 2V.
! Reduce the LEVEL or BIAS, or set the Hi-PW mo de to ON.
 Illegal op eration, Hi-PW mo de set to ON when the
HP 42841A is connected.
! Disconnect the HP 42841A.
14 V bias disabled  Illegal op eration, set to DC voltage bias when the
HP 4284A, HP 42841A, and HP 42842A/B are
interconnected.
! Disconnect the HP 42842A/B from the HP 42841A, or
change BIAS to a currentvalue.
15 I bias not available  Illegal op eration, set to DC current bias when the
HP 4284A is in the standard conguration.
! Set BIAS to a voltage value.
16 Measurement ab orted  REF data Measurement ab orted.
! Re-measure.
Error and Warning Messages B-3