Panametrics DigitalFlow XGF868i, Service Manual

Page: 20 / 72

Chapter 2. Error Codes
12 DigitalFlow™ XGF868i Service Manual
E0: No Error
Problem: No error condition currently exists.
Cause: This message appears briefly to confirm that the response to another error message has corrected the
problem.
Action: No action is required.
E1: Low Signal
Problem: Poor ultrasonic signal strength or the signal exceeds the limits entered via the Keypad Program .
Cause: Poor signal strength may be caused by a defective cable, a flowcell problem, a defective transducer or a
problem in the electronics console. A signal that exceeds the programmed limits is probably caused by
the entry of an improper value in the Channelx- Set up-Signal submenu of the Keypad Program .
Action: Using the procedures in Chapter 3, Diagnostics , check the components listed above. Also, check the limit
values entered into the Channelx- Set up-Signal submenu, as described in Chapter 1, Programming Site
Data , of the Programming Manual .
E2: Sound Speed Error
Problem: The sound speed exceeds the limits programmed in the Channelx- Set up-Signal submenu of the
Keypad Program .
Cause: The error may be caused by incorrect programming, poor flow conditions or poor transducer orientation.
Action: Compare the measured sound speed to tabulated nominal values for the gas being used and correct
any programming errors. Refer to Chapter 3, Diagnostics , to correct any flowcell and/or transducer
problems.
E3: Velocity Range
Problem: The velocity exceeds the limits programmed in the Channelx- Set up-Signal submenu of the Keypad
Program .
Cause: This error may be caused by the entry of improper programming data or by poor flow conditions and/or
excessive turbulence.
Action: Make sure the actual flow rate is within ±75 ft/sec (±23 m/sec). See Chapter 1, Programming Site Data , in
the Programming Manual for details. Refer to Chapter 3, Diagnostics , to correct any flowcell and/or
transducer problems.