Exhaust Alert Operating & Fitting Instructions
5
HMI 201/01
•
If the exhaust hose internal diameter is less than 76mm place small rubber
washer B over the end of the probe, followed by the small stainless steel
washer C and stainless locking nut N.
•
If the hose internal diameter is 76mm or larger, place the large rubber washer
F over the end, followed by the large stainless steel washer E and stainless
locking nut N.
•
Tighten the self-locking nut, taking care not to displace or unduly distort the
inner rubber washer.
Note:
Very thin wall hose requires the use of the larger rubber and steel washers
irrespective of diameter.
3.2
Fitting the Connection Block
•
Position the Connection block in a protected dry environment within reach of
the Master Gauge wiring loom
•
Identify 12V/24V dc power source. Typically, this is the ignition circuit of each
engine to be monitored but it can be from an independent switch power
source.
•
Secure the Connection block to a bulkhead or other resilient surface with self-
tapping screws or other suitable fasteners. Make sure it is not distorted or put
under stress by the fixing arrangement.
•
DO NOT connect the power supply at this time.
3.3
Fitting the Master Gauge
•
The Master Gauge is fitted with a 3 metre loom. If you need to shorten this
cable you can do so, alternatively you can simply coil up any excess and
secure it in a convenient place.
•
Identify the mounting position for the Master Gauge on a flat panel where it
is readily visible and within easy reach.
NOTE:
Do not connect the
power supply cable to
the source that is live
when the engines are
switched off or the
unit may malfunction.
CAUTION:
Do not attempt to
open the Display Head
or you will destroy its
water tightness and
void the warranty.
