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531 M1 02 A

16-07-2010

1

NivOil

®

/ 12 V DC

Alarm system
for oil-water separators

Instructions manual

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Summary of Contents for NivOil

Page 1: ...531 M1 02 A 16 07 2010 1 NivOil 12 V DC Alarm system for oil water separators Instructions manual ...

Page 2: ...oat valve closes to prevent an overfilling when the level of fluid is too high Sludge layer sensor to alarm when maintenance is necessary Detection of sludge maximal level as soon as the sludge reaches the sensor the alarm is switched ON 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 sen...

Page 3: ...r Fit the sensor such as the sensor tip corresponds to the bottom of the greater layer thickness to detect The graduated stem 5 10 and 15 cm marks makes the adjustment easier Overfilling sensor Fit the sensor such as the ends of U probe are 2 cm under the alarming level Sludge layer sensor Fit the sensor such as the ends of U probe are 2 cm under the alarming level 3 CONFIGURATION AND ELECTRICAL C...

Page 4: ...DIP 6 Monitoring frequency each 6 to 54 min DIP 7 Monitoring frequency each 3 to 37 h DIP 8 Monitoring frequency each 1 to 9 days DIP switch setting 0 1 2 3 4 5 6 7 8 9 DIP 6 ON Continuous monitoring 6 min 12 min 18 min 24 min 30 min 36 min 42 min 48 min 54 min DIP 7 ON Continuous monitoring 3 h 6 h 9 h 12 h 15 h 18 h 21 h 24 h 27 h DIP 8 ON Continuous monitoring 1 day 2 days 3 days 4 days 5 days ...

Page 5: ... monitoring cyclic monitoring The energy consumption is adjustable by modifying the duration of each monitoring cycle through the settings of the DIP switch and the selector The monitoring frequency is adjustable from 6 minutes to 9 days Between 2 monitoring the alarm unit is in sleep mode monitoring function in stand by When there is not a specific sleep mode period selector on 0 and DIP 6 7 and ...

Page 6: ...ice NivOil memorizes the type of sensor connected to each chan nel l When the TEST mode is activated an audible signal occurs if everything is correct The factory settings are without sensors l When you connect a new sensor on a free channel the alarm device NivOil will identify and memorize it as soon as you switch on the power If a sensor is removed the corresponding 3 LED will be flashing defec...

Page 7: ...531 M1 02 A 16 07 2010 7 5 ALARM SYNOPTIC DIAGRAMS Note To avoid false alarms a 10 seconds delay is factory set up For hydrocarbon fluid layer thickness and overfilling sensors DIP3 OFF ...

Page 8: ...d When probe ends are inside 1 cm or 2 cm inside sludges sand soils etc The alarm synoptic diagrams for the sludge probe are identical to the diagrams for hydro carbon fluid layer thickness and overfilling sensors For sludge probe DIP3 OFF Repeat alarm function The alarm repeat function is disabled or activated with the DIP switch 2 When DIP 2 is in position ON the alarm will repeat again 24 hours...

Page 9: ...corresponding channel e Blinking not corrected Without defect No reset alarm Red LED on corresponding channel e Blinking buzzer Green LED on corresponding function e Light on Without defect Reset alarm but Red LED on corresponding channel e Light on not corrected Green LED on corresponding function e Light on Sensor status Alarm status Signals Without defect No alarm Green LED on corresponding fun...

Page 10: ...tive test Corresponding LED are ON Negative test Corresponding green LED are blinking 9 MAINTENANCE The alarm device and its sensors do not require any maintenance operation in normal operation After an alarm occurred the sensors must be cleaned as the separator is drained To clean out a sensor use a wetted rag with a house cleaning and degreasing liquid 10 PRECAUTION Hydrocarbon fluid layer thick...

Page 11: ...en 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 250 V AC 0 45 A 10 W potential free change over contacts Ex protection class I 3 1 G Ex nAC ia Ga IIB IIA T4 Gc ATEX certificate BVS 10 ATEX E 011 CE Marks According to EC directives Low Volt...

Page 12: ... 60529 Temperature limits 20 60 C Ex protection class II 1 G Ex ia IIB T4 Intrinsic safety ATEX certificate BVS 09 ATEX E 021X Sensor type Ultrasonic detection type Wetted parts PVC Cable Elastomer resistant to oils and hydrocarbon fluids blue colour wires 2x1mm2 connections to the alarm device NivOil on screw connectors 10 m long cable max length is 300 m Protection IP68 acc EN 60529 Temperature ...

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