Page 7 - \\tsclient\C\Users\Jack Weeks\Desktop\TS Injection Molding Hyd.vp
P. 7
Konus Burners, Primary, and Vat Pumps
opens and the burner shuts down. The operator will get a “flow
control” indication along with an alarm on the panel view. A drop in
flow rate could be caused by dirty strainers, worn pumps, bad
couplings, or electric motor problems. Make sure all heat
exchangers are operating properly and that the proper primary and
secondary loop valves are open.
FO Fixed Orifices
These orifices are located at the outlet of the Konus burners. These
orifices are used to indicate a pressure drop which will be converted
into a flow rate by the FM1 and FM2 transducers. In the normal
operating mode these orifices should indicate a pressure drop of .3
BAR or higher. If two of the pressure transducers on the specific
burner indicate a flow rate below .1 BAR, an alarm delayed timer will
start for 3 seconds. The flow control safety interlock then opens and
the burner shuts down. The operator will get a flow control indication
Troubleshooting Thermal Oil Systems Page 7