Endress+Hauser Proline t-mass A 150, Руководство по эксплуатации, Страница: 80 / 134

Diagnostics and troubleshooting Proline t-mass A 150 HART
80 Hauser
12 Diagnostics and troubleshooting
12.1 General troubleshooting
Problem Possible cause Remedy
Local display dark and no signal
output at current output (0 mA) Supply voltage does not match that
specified on the nameplate. Apply the correct supply voltage
→  23.
Local display dark and no signal
output at current output (0 mA) Supply voltage has incorrect
polarity. Reverse polarity of supply voltage.
Local display dark and no signal
output at current output (0 mA) No contact between connecting
cables and terminals. Check the connection of the cables
and correct if necessary.
Local display dark and no signal
output at current output (0 mA) Terminals are not plugged into the
electronics module correctly. Check terminals.
Local display dark and no signal
output at current output (0 mA) Electronics module is defective. Order spare part →  91.
Local display is dark, but signal
output is within the valid current
range (3.6 to 22 mA) Display is set too bright or too dark. • Set the display brighter by
simultaneously pressing  + .
• Set the display darker by
simultaneously pressing  + .
Local display is dark, but signal
output is within the valid current
range (3.6 to 22 mA) Ribbon cable of the display module
is not plugged in correctly. Insert the plug correctly into the
main electronics module and
display module.
Local display is dark, but signal
output is within the valid current
range (3.6 to 22 mA) Display module is defective. Order spare part →  91.
Signal output outside the valid
current range (< 3.6 mA or >
22 mA) Main electronics module is
defective. Order spare part →  91.
Device shows correct value on local
display, but signal output is
incorrect, though in the valid
current range. Configuration error Check and correct parameter
configuration.
Device measures incorrectly. Configuration error or device is
operated outside the application. 1. Check and correct parameter
configuration.
2. Observe limit values specified in
the "Technical Data".
Text on measured value display and
in navigation view appears in a
foreign language and cannot be
understood. Incorrect operating language is
configured. 1. Press  +  for 2 s ("home
position").
2. Press .
3. Set the desired language in the
Language parameter.
No connection via HART protocol Missing or incorrectly installed
communication resistor. Install the communication resistor
(250 Ω) correctly. Observe the
maximum load →  23.