Omron FH-3 Series Reference Manual page 478

When the Measurement Results Deviate or are Imprecise
You can use the following methods to improve measurement precision and stability.
When the measurement results are unstable
Parameter to be adjusted
Measurement
(Reference:
Measurement
Parameters (OCR) (p.459))
When a specific character is misrecognized
Parameter to be adjusted
Dictionary Regist
(Reference: Dictionary
Registration (OCR)
(p.468))
The result of date verification does not stabilize
Parameter to be adjusted
Date parameter
(Reference: Date
Parameters (OCR) (p.469))
Adjusting the Processing Speed of Measurements
You can use the following methods to improve the measurement processing speed.
When the processing speed is slow
Parameter to be adjusted
Region setting
(Reference: Region
Setting (OCR) (p.458))
Measurement
(Reference:
Measurement
Parameters (OCR) (p.459))
476
OCR
If the measurement region is large, excessive time may be required for measurement
processing.
Set as small a measurement region as possible.
The [String format] (character string format) setting or correct string may not match the
characters being read.
Set a character format string that matches the characters being read, and check the teaching
results.
You may be using "Fast" mode to measure a character string with a small interval between
characters.
Set the read mode to "Normal".
The characters being measured may have a large height or a large width.
Set a maximum aspect ratio for "Max aspect ratio" in "Detail setting" so that the ratio accords
with the length and width of the characters being read.
You can check the shape of the characters in the cut-out image display.
The character being read may be similar to another character in the dictionary in the processing
item.
Register the character being read in the dictionary.
One-digit and two-digit formats may be mixed together in the printed month/day.
In the date settings, change the "Zero suppress" (10's digit display) setting to match the actual
printed format.
If the measurement region is large, excessive time may be required for measurement
processing.
Set as small a measurement region as possible.
You may be using "Normal" mode to measure a character string with a large interval between
characters.
Set the read mode to "Fast".
Troubleshooting
Troubleshooting
Troubleshooting
Troubleshooting
FH/FZ5 Processing Item Function Reference Manual