Operation Manual VISATRON® VN115/87plus EX
06/2016
Page 5
SCHALLER AUTOMATION
D-66440 Blieskastel / Saarland / Germany / Industriering 14 / P.O Box 1280
Industrielle Automationstechnik GmbH & Co. KG
Tel. +49(0)6842-508
-
0
/ Fax -260 / eMail: [email protected] / www.schaller.de
Advice for secure operation in potentially explosive atmospheres
Intended purpose
Operation in internal potentially explosive atmospheres
corresponding classification II-/2G (group II, category 2G,
operating resource for gas atmosphere). The requirements
of EN60079-0:2012+A11:2013 and EN60079-28:2007 are
met)
Labelling:
II (2G) [Ex op is IIB T4 Gb]
Permissible ambient temperature (during intended purpose):
Ta: +5°C
≤ Ta ≤
+70°C
Typical gasses of the ignition protection T4:
T4 maximum surface temperature <=135°C
Methane, acetone, ammonia, methanol, propane, toluol,
acetic acid, city gas, hydrogen, ethanol, n-butane, ethylene,
acetylene, automotive gas, diesel, heating oil, hydrogen
sulphide, acetaldehyde, diethyl ether.
Do always connect the OMD’s exhaust tube back to the
engine’s crankcase. The correct suction pressure in the
measuring head should be of 60mmWC!
In order to ensure the correct function of the OMD, the
pressure inside the engine
’s crankcase
shall be limited to
+/-500mmWC!
If the pressure is higher (or lower), Schaller Automation has
to be contacted!
Warning!
The OMD has not to be cleaned with a steam
cleaner, high-pressure cleaner or solvent!
Warning!
Do not interchange components of VN115/87plus
(non-EX)
with VN115/87plusEX. Especially the detector’s
baseplate shall be of type VN115/87plusEX.
Important:
The device is not intended to be mounted in an
EX area, it is designed to extract gases from a potentially
explosive atmosphere (e.g. the crankcase of a gas engine).
