Key features
• Reliable visibility meter / fog
detector
• Low cost of ownership
• Certified for Zone 1 areas with
gas explosion hazard
• Continuous visibility metering
to trigger foghorns and/or
lights
• Designed to meet the harsh
offshore environment (salt,
water etc.)
• Robust 316 stainless steel,
light weight design, suitable
for pole mounting which can be
supplied as an option
• Easy to install with spacious,
easy to open junction box for
quick opening and cable
connection (opening by just 4
stainless steel retaining bolts)
Standards/Certification
• Cenelec EN 60079-0, EN 60079-1,
EN 60079-7, EN 50014, EN 50018
and EN 50019
• KEMA 05ATEX2189; ATEX
¤ ll 2G Ex de llB T5 according
to ATEX Directive 94/9/EX
Performance characteristics
• Back scatter operating principle
• Laser LED long life light
source, class 3R
• Range: 20 to 10,000 meter /
0.01 to 5.4NM
• Measurement time interval 60
seconds
• Software controlled anti-dew
window heater
Electrical characteristics
• Operating voltage: Integrated
multi voltage power supply unit
100–240Vac; 50-60Hz or 10–60Vdc
• Power consumption: 5W / 11VA and
an additional 2W / 4VA for the
anti dew window heater (when in
operation)
• Analogue visibility output:
VDX05EX-NNNi: 4-20mA &
VDX05EX-NNNu: 0-5V
• Set point 1: SPCO contact 2A
(non inductive) default set to
1,500 meter (for triggering
navigation lights)
• Set point 2: SPCO contact 2A
(non inductive) default set to
3,700 meter (for triggering 2NM
for foghorn)
• Connection details: max.
4mm²; two M25x1.5 cable
gland entries
• Earth connection: internal M5
and external M6
• Over-voltage protection provided
Physical characteristics
• Dimensions (L x W x H):
475 x 150 x 314mm
• Weight: 20kg
• Degree of protection: IP66
• Operating temperature range:
-20°C to +45°C
• Designed for pole mounting
 ø 52mm / 2 inch
System design, control and
monitoring (optional)
• Prepared for Orga’s future
comprehensive remote integrity
monitoring system
• Self monitoring of basic
functions as a standard