DEVICE DESCRIPTION
2
7
SMARTPAT ORP 8150
www.krohne.com
04/2019 - 4004005503 - AD SMARTPAT ORP 8150 NEPSI
2.3 Flammable products
Atmospheric conditions:
Atmospheric conditions:
Atmospheric conditions:
Atmospheric conditions:
The standard atmospheric conditions under which it may be assumed that Ex equipment can be
operated are:
•
Temperature: -20...+60
°
C / -4...+140
°
F
•
Pressure: 80...110 kPa (0.8...1.1 bar) / 11.6...15.9 psi
•
Air with normal oxygen content, typically 21%v/v
Ex equipment operating outside the standard temperature range must be tested and certified
(e.g. for ambient temperature range -10...+85
°
C / -14...+185
°
F).
Ex equipment operating outside the standard atmospheric pressure range and standard oxygen
content is not permitted.
Operating conditions:
Operating conditions:
Operating conditions:
Operating conditions:
The sensor operate outside the standard atmospheric pressure range, which means that
explosion protection, regardless of the zone assignment, is fundamentally not applicable for the
sensor (piping or vessel).
Figure 2-3: Position of the nameplates on the sensor
1
Nameplate on the sensor connector with ex data
2
Marking on the glass
WARNING!
Operation with flammable products is only permitted as long as no explosive fuel/air mixture
builds up inside of the piping or vessel at the same time the atmospheric conditions are
exceeded.
The operator is responsible to ensure that the sensor is operated safely in terms of the
temperature and pressure of the products used. In case of operation with flammable products
the sensor must be included in the periodic pressure tests of the plant.
