364
Appendix D
Operations when Overload, No Contact or Low C is Detected
Operations when overload/No contact/Low C is detected
Operations when overload/No contact/Low C is detected
shows operations of the E4981A when one of the following items is detected:
o Overload
• When the available measurement range is exceeded more than about 10% (refer to
“Specifications and Supplemental Performance Characteristics” in
Operation
Manual
)
• When connection between the UNKNOWN terminals to DUT is not correct
• When SLC is ON, if the applied signal level for DUT is dropped more than 10%
from the setting level
o No Contact:
• When the contact check parameter is over the specified threshold
o Low C:
• When measured primary parameter result is equal to or less than the boundary
value specified for the Low C reject function
o Out of display range:
• When measured result exceeds the allowable display range (refer to “Specifications
and Supplemental Performance Characteristics” in
Operation Manual
) (regardless
of fixed or floating point display)
• When measured result exceeds the allowable display range for the fixed point
display
Table D-1
At-a-glance table of operations when overload/No contact/Low C reject is detected
Display output
GPIB/LAN/USB output
Handler output
(handler signal that
becomes active)
Measured
value
Voltage/
current
monitor value
Comparator
sorting result
Measurement
status
Measured
value
Comparator
sorting result
Overload
OVLD
---
---
1
9.9E37
11
/OVLD
No contact
N.C.
---
---
2
9.9E37
11
/LOWC_OR_NC
Low C
Normal
Normal
LOWC
*1
2
Normal
Normal
/LOWC_OR_NC
*2
Out of display range
*3
-------
---
Normal
Normal
Normal
Normal
Normal
*1.When Low C is detected, LOWC is displayed in BIN No. DISPLAY page.
*2./LOWC_OR_NC becomes active together with the signal that corresponds to the result of normal sorting judg-
ment (judgment result when no error occurred).
*3.When an out-of-display-range state is detected, measurement is performed normally but the measured values are
not displayed.
