Fluke 6270A, Service Manual, Page: 119 / 144

Pressure Controller/Calibrator
Troubleshooting
113
Table 48. Troubleshooting (cont.)
Problem Probable Cause Action
Pressure Generation or Indication Problems
Product does
not control
down
Blocked exhaust port Remove shipping plugs or excessive restriction.
Setpoint applied below
atmosphere
Connect vacuum pump.
Slew Rate set to zero Increase slew rate.
No remote
communications
Communication
settings are not correct
See Remote Port Menu .
Improper command
syntax
Verify cable type (null modem)
Cables are the wrong
type or not properly
connected
Use the correct cables and connections.
Confirm setting in the
Product
Reset Controller Settings
Some of the setup menus have a reset button to reset the settings on the current
menu to their default values. Reset only resets the settings on the screen being
viewed and no others. This is a helpful troubleshooting tool in case an accidental
change was made to the values.
A factory-reset function is available in the Setup menu. Push Reset to reset the
Product to original factory settings.
Diagnostics
The Diagnostics menu provides helpful system information, tools, and functions
to help troubleshoot and keep the system in good operation.
Note
If the Product is configured as a system, the Diagnostics menu
shows all of the controllers connected to it in the Diagnostics menu.
The Diagnostics menu has these sections which are explained in the next
sections:
•
System
•
Measure
•
Control
•
Remote Interface