Deckma OMD-24 Series User Manual

DECKMA
HAMBURG
Page: 10
3.4 Adjustment
The unit is delivered with a works calibration according the IMO requirements. A
customer calibration on board is not permitted. This has to be done according IMO
Regulations by the manufacturer or persons authorized by the manufacturer.
The units are staffed by two independent oil alarm circuits, Alarm 1 and Alarm 2. The
alarm set points can be changed between 1 ppm and 15 ppm.
The units contain two alarm delays. Alarm 1 is to be used for signing purpose and the
delay can be set from 1 sec. to 9 min. Alarm 2 is limited to control overboard discharge.
The Alarm 2 delay can be set from 1 sec. to 10 sec. max.
The "Zero" point is also works calibrated and is adjustable to ± 5 ppm.
On site by using the programming mode (See Section 21.2.3 Functional Buttons
AL1/ AL2/ SET ) and clean water you can adjust following points:
Settings
Min.
Max.
Default.
Alarm 1/ Alarm 2
1 ppm
15 ppm
15 ppm
Delay 1
1 sec.
9 min.
2 sec.
Delay 2
1 sec.
10 sec.
10 sec.
Offset
-5 ppm
5 ppm
0 ppm
3.4.1 Limited Adjustment Alarm Set Point
By request units with alarm set point of 5 ppm max. are available. (For more information,
read section 17. OMD-24 Series with 5 ppm Alarm Set Point).
3.5 Active Current Interface
The active current interface represents a combination of measurements and
interpretations. The active current interface is adjustable to 0 to 20 mA or to 4 to 20 mA.
This complies with the oil content from 0 to 30 ppm. In case of malfunction e.g. EE means
20 mA.
The maximum open-load voltage is about 5 V and it is strongly recommended not to
burden 150 Ω external load.

Deckma OMD-24 Series Specifications

General

Brand	Deckma
Model	OMD-24 Series
Category	Security System
Language	English