Function Test At Classification Survey And Port State Control - Deckma Hamburg OMD-2008 Instruction Manual

b) Clean the sample tube accurately by using a suitable cell cleaning brush
as described under Section 12.0. Make sure, that the offset is correct at ±
0.
c) Run clean water through the instrument.
d) If it is sure, that non aerated, clean water is in the instrument, the reading
should be 0 ppm ± 2 ppm.
e) Continue as described under Section 11.0.
Note § 4.2.11 of MEPC. 107(49):
The accuracy of the 15 ppm Bilge Alarms should be checked at IOPP
Certificate
instructions.
calibrated 15 ppm Bilge Alarm.
the 15 ppm Bilge Alarm, certifying date of last calibration
check, should be retained onboard for inspection purposes.
accuracy checks can only be done by the manufacturer or persons
authorized by the manufacturer.

14.2 Function Test at Classification Survey and Port State Control

All 15 ppm Bilge Alarms leaving our works are calibrated according the
requirements with an accuracy of better than +/- 5 ppm within the measuring
range. The alarm points are pre-set to 15 ppm (or 5 ppm for instruments limited
to 5 ppm), and can only be changed to a lower value on site. A setting to a higher
value is not possible.
To provide a simple procedure for check the instrument aboard ship, the OMD-
2008 EV-FC is constructed in that way, that the zero check also confirms the
instrument drift within the specifications. The Test button starts a self test routine
and allows to put both alarms contacts into alarm condition. The instrument will
count down from an assumed high reading (30ppm) downwards until the
assumed value is equal to the actual measured ppm value. Note that this test will
only switch the alarm contacts to non-alarm condition, if the sample contains less
than 15ppm oil content and all other conditions for proper measurement are OK.
Issue: 25.09.2015 preliminaryInstruction Manual OMD-2008 (All Versions)
DECKMA HAMBURG GmbH
renewal surveys
Alternatively
according to
the unit may
The calibration certificate for
the manufacturers
be replaced by
Page 38 of 28
a
The