51
9.2 O
PERATIONAL
M
ESSAGES
•
The following messages are non-critical messages that appear on the
LCD screen when scrolling through the SENSOR DISPLAY menu from
the Normal Operating Screen. Scrolling through the height display
screens is a good place to start when troubleshooting because sensor
errors will be displayed here. These error messages usually require
some simple adjustment or setting changes.
Table 11 – Operational Messages
Explanation
Possible Causes
Required Action
a.
Sensor is out of range or
reading a target closer than
17cm (7
˝
).
a.
Follow 8.2.3 a).
b.
Protective foam shield is
contaminated.
b.
Follow 8.2.3 b).
c.
Moisture in sensor.
c.
Follow 8.2.3 c-1),c-2).
"
NR
"
indicates the
sensor is communicating
but Not Reading a valid
measurement.
d.
Transducer is damaged or
contaminated.
d.
Follow 8.2.3 d).
Explanation
Possible Causes
Required Action
a.
Serial number entered in
control panel does not match
connected sensor.
a.
Follow 8.2.2 a).
b.
Poor cable connection or
defective cable(s).
b.
Follow 8.2.2 b).
"
NC
"
indicates No
Communication from
the sensor.
c.
Damaged sensor.
c.
Follow 8.2.2 c).
Explanation
Possible Causes
Required Action
a.
Boom section is too high.
a.
Follow 8.2.5 a).
b.
Sensor Zero Height setting is
incorrect.
b.
Follow 8.2.5 b).
"
###
"
is displayed if
the sensor is reading a
height greater than
250cm. It is commonly
mistaken as an error.
c.
Sensor is facing very strong
sonic targets (e.g. concrete).
c.
Follow 8.2.5 c).
zcx
Explanation
Possible Causes
Required Action
NR 85
### 86
NC 89
-## 86
