Maintenance; Calibration; Cleaning; Troubleshooting - OHAUS FD Serie Manuel D'instructions

FD Series Scales

4 MAINTENANCE

4.1 Calibration

Verify calibration periodically by placing either a ASTM Class 4 weight or an OIML Class F2 weight on the
scale and compare the reading to the specifications. Refer to Section 3.7.1 for calibration procedure.

4.2 Cleaning

• Disconnect the scale from the power supply before cleaning.
• The housing and pan should be kept clean and free from foreign material.
• Wipe the exterior components of the scale using a soft cloth dampened with water and a mild
detergent (do not use acids, alkalis or strong solvents).
• The leveling feet and load pads may be unscrewed and removed for cleaning.
• Do not allow liquids to enter the scale.
• Remove and clean the pan separately from the scale.
• The pan is dishwasher safe and may be placed with normal loads. All other parts must not be
placed in a dishwasher.

4.3 Troubleshooting

The following table lists common problems, possible causes and remedies. If the problem persists,
contact Ohaus or your authorized Ohaus dealer.
Symptom
Scale will not turn on
Battery indicator is low.
Battery fails to charge fully.
Weight reading does not
stabilize.
Scale does not display
accurately.
Cannot calibrate the scale.
TABLE 4-1. TROUBLESHOOTING.
Possible Causes
AC power not connected.
Battery discharged.
Battery discharged.
Battery is defective.
Unstable environment.
Interference under pan.
Improper calibration.
Calibration locked.
Remedy
Connect scale to power.
Connect scale to power and charge battery.
Connect scale to power and charge battery.
Have the battery replaced by an authorized
Ohaus service dealer.
Ensure a stable environment.
Ensure that the weighing pan is unobstructed
and free to move.
Change the Averaging Level setting.
Calibrate scale.
Set LFT to OFF in the Menu Mode.
Set LCAL to OFF in the Menu Mode.
Set Security switch to the Off position.
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