HP 8712C User Manual page 475

measurement with an external detector connected to the EXT DET Y-INPUT
on the rear panel.
N O T E
Graticule values are limited to four characters including *." and "-". If any graticule value exceeds
four characters, all values are blanked. For example, 23.45 blanks the values; it is not truncated as
23.4 or rounded up as 23.5. Similarly -1.23 blanks the graticule values.
Access Keys: (jj] H&IV Display
in ABS mode, absolute value of each horizontal graticule line is indicated; in
REL mode, value of each horizontal graticule is indicated relative to the value
of the reference line.
Access Keys: (DISPLAY_] MQZW Display
9-90