GF U1000 V2 Wallmount WM Instrucciones De Uso página 37

User Manual
8 Troubleshooting
8.1 Troubleshooting the flow reading
The direction of flow when powered up will be taken to be the positive flow direction. The pulse output will relate to the flow in this
direction. If the flow is reversed then the flow rate will still be displayed but the activity indication will change from an asterisk to
an exclamation mark and no pulses will be generated.
If the flow value is displayed as "-----" this indicates that there is no usable signal from the flow sensors.
The cause of this could be:
• Incorrect pipe data
• Sensor not in contact with the pipe
• Air in the liquid/pipe
• No Gel pad or grease on the sensor
• Very poor pipe condition-surface/inside
8.2 Error messages
Error Messages are displayed as a number in the diagnostics menu. Contact your GF sales representative if other messages
appear.
Error meaning
RTD I2C failed (HM
versions only)
RTD Thot failed (HM
versions only)
RTD Tcold failed (HM
versions only)
TOFM signal lost
TOFM board failed
TOFM window failed
TOFM sensor type
failed
TOFM I2C failed
Bit#7 Bit#6 Bit#5
1
1
1
Status Byte
Bit#4 Bit#3 Bit#2
1
1
Troubleshooting
Bit#1 Bit#0
1
1
1
Value
1
2
4
8
16
32
64
128
37