Ohaus GraviTek Titration Scale - Manual (Page 16)

GraviTek™ Titration Scale EN-14
6. MAINTENANCE
6.1 Troubleshooting
The following table lists common problems and possible causes and remedies. If the
problem persists, contact your authorized dealer.
TABLE 6-1, TROUBLESHOOTING.
Symptom Possible Cause Remedy
Cannot turn on • No power to scale
• Empty or incorrectly installed
batteries
• Verify AC adapter connections and voltage.
• Replace batteries, check polarity.
Poor accuracy • Improper calibration
• Unstable environment
• Transportation Lock is set
• Debris touching the pan
• Draft shield is touching the pan
or sample.
• Perform calibration.
• Move scale to suitable location.
• Slide the pin to the unlocked position.
• Clean any debris next to or under the pan.
• Check that pan is fully seated, check sample height.
Cannot calibrate • Unstable environment
• Incorrect calibration mass
• Transportation Lock is set
• Calibration Lock switch is set • Move the scale to a suitable location.
• Use correct calibration masses.
• Slide the pin to the unlocked position.
• Slide the switch to the unlocked position.
Err 1 • Invalid Checksum data.
• Cycle scale off/on.
• Contact your authorized dealer.
Err 2 • Over-load or Under-load
condition.
• Transportation Lock is set
• Improper calibration
• Verify pan is installed and/or excess load is
removed from pan.
• Slide the pin to the unlocked position.
• Perform calibration.
Err 4 • Invalid calibration mass. • Verify correct calibration mass is being used.
Err 5 • The titration test was performed
incorrectly or the PPM result
was >99999.99
• Repeat the titration test and perform the correct
steps in the proper order.
• Concentrations >99999.99 cannot be tested.
Err 8 • RS232 buffer is full.
• Cycle scale Off/On.
• Check RS232 settings in scale and computer when
RS232 option is installed.
Err 9 • Internal data error. • Contact your authorized dealer.
(Flashing) • Battery power is low. • Replace batteries soon.
bAtt LowW • Battery power is too low for
proper operation.
• Replace batteries.
6.2 Service Information
If the troubleshooting section does not resolve or describe your problem, contact your
authorized dealer.