Dräger 4543445, Operating Manual

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4
1 Introduction
1.1 Intended Use
The Polytron FX is an explosion-proof transmitter for the detection of
combustible gases and vapors in ambient air. The transmitter is designed to be
installed in permanent locations and is approved for use in hazardous,
classified areas (See Section 6.1, Approvals).
1.2 Design
The transmitter is powered by 16 to 30 VDC. Gas concentrations, error
messages, and software menu choices are displayed on a 3 digit LCD display.
Access to the software is obtained by tapping a magnetic wand on the glass
viewport at the appropriate arrow indicators. In this way, the instrument can be
configured, calibrated and maintained non-intrusively, so declassification of the
area is not necessary for these procedures.
1.2.1 Aluminum Version
The Polytron FX transmitter is housed in a powder-coated aluminum enclosure
with 3/4” NPT threaded ports located at the 3 and 9 o’clock positions. The
sensor is located at the 6 o’clock position.
Introduction
Intended Use
Design
Figure 1: Polytron FX and Polytron FX IR, aluminum version