Dwyer UXF3 - Manual (Page 121)

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6.6.1.3. Checking the RAS information
When the red LED lights up, check the error contents according to the RAS information.
Key operation Description Display
ź
Press the key 4 times to display “MAINTENANCE MODE”. MAINTENANCE MODE
ENT
Press the key once to display “RAS INFORMATION”. RAS INFORMATION
0000000000000000
If the display is abnormal, 1 is set.
Move the cursor to 1 by the key,
and press the ENT key to display the
status contents. Pressing the ENT
key again displays the troubleshooting.
Configuration of the RAS information
† † † † † † † † † † † † † † † † Comparison of error with LED
E1: Device error 1 z
E1: Device error 2 z
E2: Data collection error z
E2: Window scanning z
E2: No received signal z
E2: Received signal error z
E2: Received signal range over z
E2: Calculation failure z
Lit in red when set at “1”.
Backup
Backup
Backup
Backup
Backup
Backup
E4: Range over z
Backup
RAS information Status Troubleshooting
E1: Device error 1 Backup memory failure See “6.6.7. Remedying a hardware fault”.
E1: Device error 2 Abnormality of measuring circuit
E2: Data collection error Ultrasonic send/receive signals cannot be
collected.
Turn the power off then on again. If the
instrument does not recover properly, refer to
“6.6.7. Remedying a hardware fault”.
E2: Window scanning The ultrasonic receiving signal waveform is
being detected.
E2: No received signal No ultrasonic receiving signal waveform
Move the mounting position of the detector,
and remount the detector.
Repair or replace the signal cable.
Transmitter circuit failure or detector failure
Ÿ See “6.6.7. Remedying a hardware fault”.
E2: Received signal error The status of received waveform is poor. Check for air bubbles or foreign objects.
Check the receive sensitivity.
Ÿ Move the mounting position of the
detector, and remount the detector.
E2: Received signal
range over
Receiving signal waveform is outside the
appropriate range. Check the piping data.
Check the detector mounting dimensions.
E2: Calculation failure The value of detected measurement data is
abnormal.
Check the piping data.
Check the receive sensitivity.
Ÿ Move the mounting position of the
detector, and remount the detector.
E4: Range over Analog output and total output exceed the
range. Check the range data and the totalize
setting.
Bulletin F-107-UXF3