 |
Designed for the monitoring of hydrocarbon fluids separators, the alarm device NIVOIL® may be connected to 1, 2 or 3 sensors.
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 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.
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.
NivOiL® CU/12 – Alarm device
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
An alarm signal occurs in case of dysfunction due to 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:
Ex 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)
NivOiL® -OP/10 – Hydrocarbon fluid layer thickness sensor (Only for use with an alarm device NIVOIL)
Sensor type: Capacitive, high frequency
Wetted parts: Antistatic PE stem; Stainless steel end probe
Cable:
Elastomer resistant to oils and hydrocarbon fluids, blue colour; wires 2x 1mm2, connections to the alarm device NIVOIL on screw connectors;
10 m long cable (other lengths on request - maximal length is 300 m)
Protection: IP68 acc. EN 60529
Temperature limits: -20...+60°C
ATEX certificate: BVS 07 ATEX E 091 X / This sensor is suitable for location in zone 0
Ex protection class: Ex II 1 G Ex ia IIB T4 (Intrinsic safety)
NivOiL® -HPS/10 – Overfilling sensor (Only for use with an alarm device NIVOIL)
Sensor type: Ultrasonic detection type
Wetted parts: PVC; Elastomer cable
Cable:
Elastomer resistant to oils and hydrocarbon fluids, blue colour; wires 2x 1mm2, wiring on screw connectors; 10 m long cable
(other lengths on request - maximal length is 300 m)
Protection: IP68 acc. EN 60529
Temperature limits: -20...+60°C
ATEX certificate: BVS 09 ATEX E 021 X / This sensor is suitable for location in zone 0
Ex protection class: Ex II 1 G Ex ia IIB T4 (Intrinsic safety)
NivOiL-SP/10 – Sludge layer sensor (Only for use with an alarm device NIVOIL)
Sensor type: Ultrasonic detection type
Wetted parts: PVC; Elastomer cable
Cable:
Elastomer resistant to oils and hydrocarbon fluids, blue colour; wires 2x 1mm2, wiring on screw connectors; 10 m long cable
(other lengths on request - maximal length is 300 m)
Protection: IP68 acc. EN 60529
Temperature limits: -20...+60°C
ATEX certificate: BVS 09 ATEX E 021 X / This sensor is suitable for location in zone 0
Ex protection class: Ex II 1 G Ex ia IIB T4 (Intrinsic safety)
