Hardy Bench Scales - Manual (Page 17)

Chapter 5- Troubleshooting
5-1
CHAPTER 5- TROUBLESHOOTING
SCOPE All the information in Chapter 5 pertains to the
troubleshooting and resolution of operating prob-
lems that may occur. All maintenance personnel
and users should be familiar with both Chapters
3 and 4 before attempting to troubleshoot prob-
lems with the Scale.
Problem:
Scale Does Not
Respond When
Weight is Applied Step 1. Make sure the scale is wired correctly
to the instrument or network and there
are no breaks in the wiring.
Step 2. Check to see if there is packing mate-
rial or debris wedged under or against
the scale.
Step 3. Make sure the corner mechanical
overload stops are not engaged with
the platform. Lower as necessary.
Scale Indication is
not linear Step 1. Check the instrument for proper cali-
bration.
Step 2. Check to see if there is packing mate-
rial or debris wedged under or on the
side of the scale.
Step 3. Make sure the corner mechanical
overload stops are not engaged with
the platform. Lower as necessary.
Step 4. Make sure all electrical connections
are tight with no corrosion and that
there has not been an ingress of mois-
ture to the system.
Scale Reads
Backwards Step 1. Check for correct wiring to the instru-
ment. The +- signal or excitation wires
may be reversed.
Scale Reading
drifts or is Erratic Step 1. Make sure all electrical connections
are tight with no corrosion and that
there has not been an ingress of mois-
ture to the system.