Crowcon T4 - Page 53

53
Fault /
Warning
ID
Warning/Fault Display Image Status/Cause Operator
Action
58
59
60
61
“WARNING”
“ID 58”
This will then be
followed by the ‘home
screen’ displaying “▼”
for the gas in under
range.
(The fault ID code for
the specic gases is
shown in the adjacent
column)
H
2
S
O
2
CO
LEL
Sensor under range
Indicates the sensor
is reading under
range.
Ensure T4 is in
‘clean air’ and
undertake a zero
operation.
T4 must be
returned to a
service centre
for further
investigation
and repair if the
message seen
persistently.
77
78
79
80
‘▲’
For the gas in over
range.
(The fault ID code for
the specic gases is
shown in the adjacent
column)
H
2
S
O
2
CO
LEL
Sensor over range
Indicates that the
sensor is reading
over range.
Exit hazardous
area immediately,
over gassing of
sensors can cause
long term damage.
T4 should be gas
tested to ensure
no lasting damage
has occurred.
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Prologue
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Specication
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