DigitalFlow™ Multipurpose Ultrasonic Liquid Flowmeter Service Manual 17
Chapter 2. Error Codes and Screen Messages
E5: Amplitude Error
Problem: The signal amplitude exceeds the limits programmed in the SETUP submenu of the User Program.
Cause: Excessive levels of an attenuating gas, such as CO
2
, are present in the flowcell. Solid or liquid particulates
may be present in the flowcell.
Action: Refer to Chapter 3, Diagnostics, to correct any flowcell problems (page 3-5).
E6: Cycle Skip, Accel.
Problem: The acceleration exceeds the limits programmed in the SETUP submenu of the User Program.
Cause: This condition is usually caused by poor flow conditions or improper transducer spacing.
Action: Refer to Chapter 3, Diagnostics, to correct any flowcell and/or transducer problems (pages 3-5 to 3-8).
E7: Special Input
Problem: This message indicates a 4-20 mA input programmed for a special diagnostic is out of valid input range.
Cause: Bad connection between transmitting device and input card, broken transmitter, or broken analog input on
option card.
Action: Test analog input, verify wiring, test transmitter.
E8: Temp In Supply
Problem: This message indicates a temperature input supply error.
Cause: The temperature exceeds the specified limits for the analog inputs option card.
Action: Check the temperature transmitter and the connecting cable. Refer to Chapter 1, Calibration, and
recalibrate the analog inputs on the option card (page 1-6).
E9: Temp In Return
Problem: This message indicates a temperature input return error.
Cause: The temperature exceeds the specified limits for the analog inputs option card.
Action: Check the pressure transmitter and the connecting cable. Refer to Chapter 1, Calibration, and recalibrate
the analog inputs on the option card (page 1-6).
E10: Weak Signal
Problem: This message indicates a weak signal.
Cause: The magnitude of the two-phase signal is not large enough or the flow rate in the pipe is out of range.
Action: Check the pipe and setup parameters and the transducer connections. The process may not include enough
two-phase content — switch to transit-time mode.
To Next Page
Loading...
Need help?
General
