Aurora IA388 Manuale utente
Electronic Digital Micrometer
Model IA388
Instruction Manual
Function:
1. Metric/Inch conversion
2. Data Hold
3. Relative/Absolute measuring
4. Tolerance setting
5. Positive setting
6. Negative setting
7. Origin resetting
8. Data output
Troubleshooting:
Problem Cause Solution
No Display
Automatic switch OFF 1. Press (HOLD) or (in/mm) key
2. Turning micrometer
Voltage below 1.1 V Replace battery
Battery hasn't good contact Keep good battery contact
Digital Display
Flashing
Low battery voltage Replace Battery
Battery Replacement:
Unscrew battery cover and insert new battery
(Outside for anode), screw on battery cover.
Specifications:
Measuring Range: 0-1" (0-25mm)
Resolution: 0.00005" (0.001mm)
Accuracy: 0.00001" (0.002mm)
Power Supply: One silver - oxide button battery LR44 (1.5V)
Operating Temperature: (32°F - 104°F) 0°C - +40°C
Storage Temperature: (-4°F - 158°F) -20°C - +70°C
Humidity: No effect within relative humidity < 80%
9002-05/07
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Function Operation Remark
Origin
Resetting
First keep measuring faces in
contact to reset (use guage block),
then press (RESET) key to display
origin
Use after origin setting
Digital Display
Flashing
Press (RESET) and (-) keys together
until "SET" flashing. Press (+) or (-)
key to preset the origin value (0.25,
50, 75), then press (RESET) key, all
is done
The origin setting must be in
absolute measuring condition.
Metric-Inch
Conversion
Press (in/mm) key to be in metric
or inch system condition
Data hold and
Clearing
Press (HOLD) key, the character
"H" appears which means the unit
is in data hold condition. Press
(HOLD) key again to clear.
Relative/
Absolute
Measuring
Press (R/A) key, the charac-
ter "REL" appears for relative
measuring condition. Press (R/A )
key again, it will go into absolute
measuring condition
Tolerance
setting and
Clearing
Press (TOL) key, when the character
"TOLUP" appears, turn the micrometer
to change the display data as up-toler-
ance. Then press (TOL) key, when the
character "TOLDOWN" appears,turning the
micrometer to change the display data
down - tolerance. Press (TOL) key again,
the character "OK" appears. Tolerance
setting is finished.Press (TOL) key three
times continuously to make the tolerance
mark disappear. Then the tolerance set-
ting is cleared.
When "TOLDOWN" TOLUP" or "OK"
appears, it means you are in toler-
ance condition. To clear, you may
press "TOL" key until the character
disappears.
Note:
1. Prior to use the origin value setting should be checked, or the wrong
setting will affect the measuring result.
2. The thimble ratchet should not be turned out from the fixed pipe to prevent
the components inside from getting jammed.
3. The battery should be taken out when not in use for an
extended period of time.
Operating Method
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