Bamo NivOil® / 12V DC Alarm System for Oil-Water Separators

Bamo NivOil / 12V DC Alarm System designed for the monitoring of hydrocarbon fluids separators, the alarm device NIVOIL may be connected to 1, 2 or 3 sensors.

  • Hydrocarbon layer thickness sensor to detect when the maximum thickness is reached.
  • Overfill sensor to detect when the fluids are on the highest level.
  • Sludge layer sensor for alarming when maintenance is necessary.

The 3 sensors may be connected to any input of the alarm device NIVOIL. Any combination of the sensors can be wired. The instrument recognizes automatically the level sensor type. A LED indicates the sensor type on the diagram on the front board. The alarm device NIVOIL has a built-in buzzer; it is possible to disable its function.

Bamo NivOil Alarm System Features

  • Low power consumption – 10…27 V DC power supply input
  • Zone 0 ATEX certified (Zone 2 for the alarm device location)
  • Solar powered or standard electric battery – Energy saving mode adjustable (control frequency adjustable from 6 min up to 9 days)
  • 3 inputs, for any NIVOIL probes
  • Automatic recognition of type probe
  • 3 relay outputs with audible alarm

Low power consumption

This model working with a 10 to 27 V DC power supply has low energy consumption. It is designed for the use of a solar powered battery or any standard electric battery (consumption is 0.1 W – 12 V DC – with 3 sensors connected with one complete control cycle per hour).

Sleep mode

This mode is adjustable by modifying the frequency of control cycle (from 6 minutes up to 9 days). A continuous control mode could be switched on when there is no limit on consumption.

ATEX certified

All the components are ATEX certified. The sensors are for a location in zone 0 and the alarm device corresponds to a zone 2.

Another Article:

Alarm System Specification

Main power supply: 10…27 V DC
Power consumption: 0.1 W / 12 V DC (3 sensors connected and 1 control cycle per hour)
Housing protection: IP65, according EN 60529
Temperature limits: -20…+60°C
Sensor inputs: 3 inputs with automatic sensor type detection
for hydrocarbon fluids layer thickness, overfill level, sludge layer level
Monitoring: The alarm device NIVOIL has an auto-diagnostic of measuring loop
a short circuit or a broken cable.
Display and signals: 1 function signal LED (green) on each channel
1 alarm signal LED (red) on each channel
Built-in audible alarm, disabled by DIP switch configuration
Front panel: 2 push buttons for diagnostic test and alarm clearance
Outputs: 3 relay outputs, Power switch 250 V AC as a maximum / 3A, Potential free change over contacts
ATEX Certificate: BVS 10 ATEX E 011 / The alarm device may be mounted in Ex area, zone 2
Ex protection class: II 3 (1) G Ex nAC [ia Ga] IIB / IIA T4 Gc (Intrinsic safety)
CE Marks According to EC directives (72/23/EEC), Low Voltage Guidelines: RL 2006/95/EG & RL93/68/EWG,
EMV Guidelines: RL 89/336/EWG (EN 61326)
ATEX RL 94/9/EG (ATEX 95)
EN 60079-0 (General requirements) – EN 60079-11 (Intrinsic safety) – EN 60079-26 (Group II; category 1G)

Download Data Sheet: Alarm System for Oil-Water Separators NivOil®/ 12 V dc


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