Agilent Technologies 4349B Manual page 219

Overload/No-Contact Operations
Table C-1 shows the summary of operations when the 4349B detects OVLD (Overload), or N.C.
(No-Contact). (Measurement parameter: R)
Table C-1. OVLD/N.C. Operations (Meas. parameter: R)
Display
Data
Mode
OVLD OVLD
(Overload)
N.C. N.C.
(No-Contact)
OVLD
& OVLD
N.C.
Refer to :FETCh? in Chapter 5
1
Measurement status (0:Normal, 1:Overload, 2:No-Contact)
2
Comparison result (1:In, 2:High, 4:Low, 8:No-Contact)
3
Note
When OVLD and N.C. are detected at the same time, < stat > and < comp > of
the GPIB output are the sum of the numbers which show each phenomenon.
Therefore the value of < stat > is 1(OVLD)+2(N.C.)=3, the value of < comp > is
4(Low)+8(N.C.)=12.
When the measurement parameter is I, High or Low status in the operation of handler/GPIB
output and display is reversed as shown in Table C-2.
Handler Output
Comprtr
Mode
LOW /LO1-4
N.C. /NO CONTACT1-4
/LO1-4
LOW &
/NO CONTACT1-4
GPIB Output 1
< >
2
stat1-4 : 1
< >
data1-4 : 9.9E37 Select an appropriate measurement range.
< >
3
comp1-4 : 4
< >
2
stat1-4 : 2 Cancel the bad contact between DUT and
< >
data1-4 : 9.9E37 contact-pin.
< >
3
comp1-4 : 8
< >
2
stat1-4 : 3 Select an appropriate measurement range.
< >
data1-4 : 9.9E37 Cancel the bad contact between DUT and
< >
3
comp1-4 : 12 contact-pin.
Solutions
Overload/No-Contact Operations
C
C-1