Azbil MagneW Two-wire PLUS+ MTG15A, User Manual

Page: 272 / 280

8-4
Troubles at startup
Troubleshooting
If trouble should occur at the start of running, maintain according to the following table. If
the trouble cannot be solved even if measures are taken according to the following table, the
instrument may have broken down. Contact the nearest our customer service offices.
Trouble Check point and troubleshooting
Nothing is displayed when
powered on.
„
Check the specifications of the power source.
„
Check the wiring.
„
Check that the ambient temperature is not under -4°F
(-20°C).
No output when powered
on.
„
Check the signal line for correct connection.
Communication failure.
„
Check the signal line for correct connection. A load resistance
of 250 Ω or more is required (SFC).
„
Check the communicator for correct connection. (SFC has
polarity.)
„
SFC of Version 7.0 or over is used. Operation is impossible
with a lower version.
„
Is model MTG DD (device description) down- loaded on the
HART® Communicator? The DD for the model MTG should
be downloaded from HCF DD Library Host DD Distribution
(HCF-KIT-III) Release 2010 Number 1, Device Description 1,
Device Revision 2 or later.
No pulse output.
„
Check the counter type, input specifications and contact
capacity.
„
Check the pulse setting of the flowmeter.