6. TROUBLESHOOTING
Simtronics shall do all service and repairs. Troubleshooting ashould be performed by the
used as described below.
The detector can also give fault messages if the mounting brackets are not sufficiently
stable over time, for example with temperature changes or passing trucks resulting in the
GD1 coming temporarily out of alignment. Before troubleshooting is commenced the
rigidity of the mounting structure should be checked.
The most common issues are the following:
• Misinterpretation of ppm*m as ppm. Described in section 10.4.
• Poor alignment. Please be aware that it is the absolute transmission that should be
optimized, not the relative transmission (section 3.3).
• Interference from a second transmitter as described in section 6.3.
Troubleshooting should always start by inspecting the detector's lenses for contamination
and/or defects. The following list may be helpful:
Issue
Clean optics
warning
(3 mA)
Beam block
(2 mA)
Fault
(1 mA)
No Power
(0 mA)
No wireless or
cable Ethernet
connection
GD1
Possible source of
problem
Dirt on lens.
Detector out of
alignment.
Dirt on lens.
Detector out of
alignment.
Objects that block the
measuring path.
Detector in alignment
or service mode
Check error code in
the Service interface
Status screen.
No power to the
detector.
Not connected to
network
Loose connector
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Suggested correction
Clean optics (see section 5.2).
Realign detector (see chapter 0).
Clean optics (see section 5.2).
Realign detector (see chapter 0).
Remove objects that block.
Reboot detector by Service Interface
(Ethernet), HART®, or by
cutting/reconnecting power.
See section 0 for a description and
suggestion on how to solve the issue.
Verify with multi meter in the Junction box
that detector has power.
Check both detector and system cable
wires on terminal 1 and 2 in the junction
box.
Make sure your browser is connected to
the GD1 wireless network.
Check that the terminal adapter is securely
connected to terminals 3 – 6
850-816926-EN R06
Need help?
Do you have a question about the GD1 MK3 and is the answer not in the manual?