Stack ST8302, Руководство пользователя

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STACK ST8302 and ST8360 Video-Logger System Chapter 5. Troubleshooting
User Guide 67
Symptom Possible Cause Remedy Notes
Speed reading
dies after a short
time Ambient temperature
too high Shield the sensor
from radiated heat
from brakes and
bearings. Insulate
sensor from
conducted heat with
fibre washers. Duct
cooling air around
the sensor Maximum
temperature for
correct operation of
the wheel speed
sensor is +80
°
C
(175
°
F)
All the alarms have
been switched off Switch on the
required alarms
The Gate RPM value
is set too high Reset the RPM gate
to a lower value
No alarms for
water, oil or fuel
(temperatures and
pressures) being
Displayed
Gate RPM test has
been switched off Switch on the Gate
RPM test
Alarms only operate
when the engine is
running at or above
the gate RPM value
Video Display and
alarm light flash
when the engine is
running, Alarm
Counter
increments
constantly Intermittent alarm
caused by a
parameter with its
alarm level set too
close to the normal
operating value Either change the
value for the alarm
or turn the alarm off
Interference from
Ignition system & HT
Leads Fit Suppressed
(Silicon) HT Leads.
Fit a suppression
capacitor (2.2uF)
between the coil
(battery connection)
& chassis Use ‘Helical’
suppressed leads in
extreme cases Video Display
works OK until
engine starts then
Video Display
freezes or resets
continuously.
Video Display
recovers once
engine stopped
Wiring too close to
HT leads and/or
injector leads, or HT
leads tied to isolated
metal work to which
Stack wiring is also
tied Keep ALL wiring
away from HT leads
Low tension leads
on High
Performance
Ignition packs
& injector leads Recommended
Minimum spacing
75mm (3.0”)