Endress+Hauser Nanomass Gas Density, Operating Instructions Manual

Page: 55 / 92

Nanomass Gas Density Diagnostics and troubleshooting
Hauser 55
For access via the "Nanomass Communication" operating tool
12.2 Diagnostic information via light emitting diodes
Two light emitting diodes (LED) on the measuring device provide information on the device
status.
For local display
12.3 Diagnostic information on local display
Errors which the measuring device recognizes are shown on the local display.
Error Possible causes Solution
Not possible to establish connection
to the "Nanomass Communication"
operating tool.
Cable is too long. Check the cable length and correct if
necessary.
Incorrect COM port is used. Check the COM port selected and
correct if necessary.
Error message "Access denied"
appears after entering the access
code for accessing the "Device
settings" function area.
The access code for write protection
was not entered correctly. Use access code "0074" to disable
write protection.
LED Signal Meaning
Power Lit green Power is supplied to the device.
Error Lit red An error has occurred.
Diagnostics message Description Measures
Tube not oscillating Measuring channel not oscillating
or oscillating in the wrong
frequency range.
Perform internal cleaning ( →  59)
Density range Density value is outside the
permitted range.
1. Observe the limit values
specified in the "Technical Data".
2. Perform internal cleaning ( → 
59)
Pressure range Pressure value is outside the
permitted range. 1. Check the configuration and
correct it if necessary.
2. Observe the limit values
specified in the "Technical Data".
Temperature range Temperature value is outside the
permitted range. 1. Check the configuration and
correct it if necessary.
2. Observe the limit values
specified in the "Technical Data".