Watlow CAS200 - Manual (Page 80)

Chapter 5: Troubleshooting and Reconfiguring CAS200 User’s Guide
68 Watlow Anafaze
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CAUTION! Before trying to troubleshoot a problem by replac-
ing your scanner with another one, first check the
installation. If you have shorted sensor inputs to
high voltage lines or a transformer is shorted out,
and you replace the scanner, you will risk damage
to the new scanner.
If you are certain the installation is correct, you can try
replacing the scanner. If the second unit works correctly,
then the problem is specific to the scanner you replaced.
Returning Your Unit
Before returning a scanner, contact your supplier or call
Watlow Anafaze at +1 (831) 724-3800 for technical support.
Scanners purchased as part of a piece of equipment must be
serviced or returned through the equipment manufacturer.
Equipment manufacturers and authorized distributors
should call customer service at Watlow Anafaze to obtain a
return materials authorization (RMA) number. Shipments
without an RMA will not be accepted. Other users should
contact their suppliers for instructions on returning
products for repair.
Troubleshooting Scanners
A problem may be indicated by one or more of several types
of symptoms:
• A process or deviation alarm
• A failed sensor alarm
• A system alarm
• Unexpected or undesired behavior
The following sections list symptoms in each of these
categories and suggest possible causes and corrective
actions.
Process and Deviation Alarms
When a process or deviation alarm occurs, the scanner
switches to the single channel display for the channel with
the alarm and displays the alarm code on the screen.
Software such as ANASCAN or WatView displays a
message on the alarm screen and logs the alarm in the
event log.
See Alarms on page 40 for a description of alarm behavior
and how to respond to alarms.