3 additional technical support, 4 return authorization, Additional technical support – American Magnetics 187 Self-Compensating Liquid Level Controller User Manual
Page 67: Return authorization, Service

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Service
Return Authorization
cards that have introduced communication errors. AMI attempts to
establish compatibility with as many products as possible, however it is
difficult to test every card available. Contact AMI directly if you have
thoroughly checked your setup and continue to experience problems with
the IEEE-488 interface.
5.3 Additional Technical Support
If the cause of the problem cannot be located, contact an AMI Technical
Support Representative at (865) 482-1056 for assistance. The AMI
technical support group may also be reached by Internet e-mail at
VXSSRUW#DPHULFDQPDJQHWLFVFRP
. Additional technical information,
latest software releases, etc. are available at the AMI World Wide Web site
at:
KWWSZZZDPHULFDQPDJQHWLFVFRP
Do not return the Model 187 or other AMI system components to AMI
without prior return authorization.
5.4 Return Authorization
Items to be returned to AMI for repair (warranty or otherwise) require a
return authorization number to ensure your order will receive proper
attention. Please call an AMI representative at (865) 482-1056 for a return
authorization number before shipping any item back to the factory.