Operating Instructions

Siemens Building Technologies, Inc. 7-1
7
Hardware and Software Troubleshooting
Chapter 7 describes corrective measures you can take should you encounter a problem
when using a Fume Hood Monitor (FHM) or the Computer Interface Software (CIS). For
issues not covered in this chapter, contact your local Siemens Building Technologies, Inc.
representative.
Fume Hood Monitor Troubleshooting
You are not required to do any FHM troubleshooting. Contact your local Siemens Building
Technologies, Inc. representative if a problem occurs or if you have any questions about the
FHM.
NOTE:
If a problem occurs, then record what the problem is and what actions were
performed immediately before the problem occurred. Being able to describe the
problem in detail is important, should you need assistance from your local
Siemens Building Technologies, Inc. representative.
Preventive maintenance
Most FHM components are designed so that, under normal circumstances, they do not
require preventive maintenance. However, devices that are exposed to dusty or dirty
environments may require periodic cleaning to function properly. To ensure optimum system
performance, it is recommended that you discuss the operating requirements of your
application with your Siemens Building Technologies, Inc. representative to determine the
best Technical Support Program for your needs.
Safety features
The circuit board stores the FHM’s address, applications, and selected point values. In the
event of a power failure or a reset, these values are retrieved from the FHM’s permanent
memory and are used by the FHM unless overridden by a field panel (if present).