The functional test referred to in paragraph 9.1.8 should
include at least all the following tests when the monitoring system
is operating on water:
-
.1 verify correct running of pumps, absence of
leakage in the sample pumping and piping system, correct functioning
of remote controlled sampling valves, etc.;
-
.2 verify by checking flow rates or pressure drops,
as appropriate, that the system operates under correct flow conditions.
This test should be repeated separately for each sampling point;
-
.3 verify that alarms function correctly when
a malfunction occurs external to the monitoring system, such as no
sample flow, no flow meter signal, power failure, etc.;
-
.4 vary the simulated input signals manually while
the monitoring system is operating on water and check the recordings
for correct values and timing. Vary the simulated manual input signals
until alarm conditions are obtained, and verify proper recordings.
Ascertain that the overboard discharge control is activating and verify
that the action is being recorded;
-
.5 verify that normal operating condition can
be reset when the value of the instantaneous rate of discharge is
reduced below 30 litres per nautical mile;
-
.6 activate the manual override control and verify
that a recording is made and that the overboard discharge control
can be operated;
-
.7 turn off the system and verify that the overboard
discharge valve closes automatically or the relevant pumps are stopped
and the overboard discharge control is inoperative;
-
.8 start up the system and check the zero and
gain setting for the oil content meter in accordance with the manufacturer's
operations and technical manual; and
-
.9 check the accuracy of the flow meter(s), for
example by pumping water in a loop where the flow rate may be calculated
from the level change in a tank. The check should be made at a flow
rate of about 50% of the rated flow of the flow meter.