OMD-24
General Details
The OMD-24 Bilge Alarm Unit has been designed specifically for use in conjunction with 15 ppm oil-water separator units and has a specification and performance which exceeds the requirements of the International Maritime Organization specifications for 15ppm Bilge Alarms contained in Resolution MEPC. 107 (49).
The unit is supplied with 2 works-adjusted alarms at 15 ppm. Other set points (10 ppm or 5 ppm) are possible and can be adjusted on site at any time by using the buttons at the front panel. If an alarm set point is exceed, the alarms are visible at the front panel and the appropriate relays are switched.
In case of malfunction the System LED at the front panel will change from blinking green to permanent red. For the data logging function the unit requires an status input from the separator. Optionally a 0(4) – 20 mA (equal to 0 – 30 ppm) signal output is available for driving a recorder or external meter.
Technical Details
| Property | Value |
|---|---|
| Range (measurement & indication) | 0 – 30 ppm, Trend up to 50ppm |
| Range (IMO specification) | 0 – 15 ppm (according IMO regulations) |
| Accuracy | better than IMO MEPC.107(49) |
| Electrical power supply | 24V, AC or DC, +/-10% |
| Electrical power consumption | < 5 VA |
| Sample | Oily water from separator outlet, 0,1 – 4 l/min |
| Sample temperature range | +1°C to +65°C |
| Sample connections | R 1/4″ Female |
| Alarm 1 & 2 Set Points | 1 – 15ppm (adjustable) works adjustment 15ppm |
| Alarm 1 operating delay for annunciation | 1 – 540 sec |
| Alarm 2 operating delay for control | 1 – 10 sec |
| Alarm contacts | 2 independently adjustable switchover contacts |
| Alarm contact operation mode | De-energized in Alarm State |
| Alarm contact ratings | 3A, 240V each |
| Alarm output | 0 – 20 mA or 4 – 20 mA, for 0-30ppm reversible, ext. Load<150Ω |
| Display | Graphic Display |
| Ambient temperature | +1°C to +55°C |
| Class of protection | IP 65 |
| Dimension Computer Unit | 185 x 210 x 65 mm (WxHxD) |
| Dimension Measuring Cell | 140 x 160 x 65 mm (WxHxD) |
| Weight | 2,5 kgs |
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