Chapter 2. Error Codes and Screen Messages
20 DigitalFlow™ GF868 Service Manual (1 and 2-Channel)
E10: Special Input
Problem: This message indicates a special input error.
Cause: The special input exceeds the specified limits for the analog inputs option card.
Action: Check the special transmitter and the connecting cable. Refer to Chapter 1, Calibration, and recalibrate the
analog inputs on the option card.
E11: Not Used
This error code message is not currently in use.
E12: Not Used
This error code message is not currently in use.
E13: Over Range
Problem: This error code message indicates that the present measurement exceeds the capacity of the meter.
Cause: A internal mathematical overflow has occurred in either the volumetric or mass flow calculations.
Action: Select larger measurement units or a shorter time interval for the current measurement parameter. For
example, choose KSCF/M instead of SCF/M. See Chapter 2, Initial Setup, of the Startup Guide for
instructions.
E14: Totals Overflow
Problem: The totalizers are unable to keep up with the total flow signals.
Cause: The programmed units/pulse value is too small.
Action: Select a larger number of units/pulse value.
E15: Equation Limit
Problem: The meter cannot resolve the molecular weight of the gas based on the measured sound speed, temperature,
pressure and N
2
concentration.
Note: The mw reading will appear as 2.0e3 or 3.0e3 in order to “flag” this condition.
Cause: One or more of the above measurements must be incorrect.
Action: Verify the pressure and temperature readings are correct. Verify the programmed (or input) nitrogen
concentration is correct. Verify that the acoustic transit time measurements are operating properly, and that
the programmed path and axial length dimensions are correct.
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