Dräger Polytron IR0 pages

Dräger Polytron IR
DETECTION PERSONAL PROTECTION DIVING TECHNOLOGY SYSTEM TECHNOLOGY SERVICES
Configuration
New is the configurable measuring range
for the Dräger Polytron IR transmitter:
Type 334 offers 0 to 20 %LEL and up to
100 %LEL, alternatively 0 to 100 %v/v for
methane. Type 340 is configurable from
5 to 100 %LEL. Configuration is menu
guided and easy to perform, using a
HART® handheld terminal or laptop.
Calibration
For the easy calibration of the Dräger
Polytron IR, only one gas needs to be
selected from an internal list, and this gas
can differ from the gas to be measured.
All data will be converted automatically to
the substance to be monitored. So, the
intricate use of factors for cross sensitivity
is no longer necessary. Thus for all Dräger
Polytron IR transmitters there is only one
calibration gas required, independent of the
monitored substance.
Technical innovation
The new model type 340 extends the area
of applications for the Dräger Polytron IR
product line. The new wavelength of the
Dräger Polytron IR type 340 offers
detection of alkanes at an even higher
sensitivity. The possible monitoring of
cyclohexane presents one of various new
options for gas detection resulting from
this innovation.
With both transmitter models Dräger
Polytron IR type 340 and type 334,
Dräger Safety defines the status quo of
measurement technology for continuous
monitoring of ambient air regarding
combustible gases and vapours. Dräger
Polytron IR works based on the physical
principle of infrared absorption. The
innovative double compensated and nonfocussing
optics effectively compensates
all temperature and ageing effects. With
its many field proved components it sets
the standard for all relevant measurement
requirements. It is approved by certification
that Dräger Polytron IR can be used for
SIL 2 (safety integrity level) safety
functions.
The Dräger Polytron IR is an explosion proof infrared gas detector for continuous
monitoring of combustible gases and vapours. With its stainless steel body and
drift free optics this transmitter is built for the harshest offshore environments.
Two models working with different wavelengths cover a broader range of detectable
substances.
ST-3949-2004
ST-743-2006
Dräger Polytron IR:
Configurable gas detector for
reliable detection of combustible
gases and vapours.