531 M1 02 A
16-07-2010
11
11 TECHNICAL FEATURES
Main power supply: 10...27 V DC
Power consumption: 0.1 W / 12 V DC
(3 sensors operating, 1 monitoring 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, 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 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 CU/12 – Alarm device
(1)
The alarm device NivOil may be installed in zone 2.
(2)
For intrinsic safety parameters [U
o
, I
o
, P
o
and C
o
, L
o
],
see details in the ATEX certificate.
