Dräger Polytron 8100, Instructions For Use Manual, Page: 13 / 254

Operation
Dräger Polytron 8100 13
3.13 Installing software dongles
The following software dongles are available for the
Polytron 8100:
To install a software dongle:
Refer to figure A on the fold-out page.
1. Switch off power to the instrument or declassify the area
according to the local regulations.
2. Loosen set-screw and unscrew lid from instrument.
3. Lift the handle and pull-out the PCB unit with the main
electronics.
4. Insert the dongle in the slot with the Dräger logo facing
upwards. Refer to figure C on the fold-out page.
5. Place PCB unit back into the enclosure.
6. Screw the lid back on, until it is seated (see Section 10.9
on Page 44), and tighten set-screw.
7. Switch power back on.
4 Operation
4.1 Normal operation
1. Switch power supply on.
The instrument will go through a start-up sequence (LCD / LED
test, software version, and initialization) and start the warm-up
period. The display shows that the sensor will be ready for
measurement in hh:mm:ss (countdown) and the instrument
transmits the maintenance signal, see Section 10.3 on
Page 43. The fault relay is activated.
After the warm-up period, the instrument goes into normal
operation. The display shows the current gas concentration,
the selected gas and the units of measurement. The green
LED is lit.
4.1.1 Analog signals
The current output of the instrument during normal operation is
between 4 and 20 mA and is proportional to the detected gas
concentration.
Polytron 8xx0 uses different current values to indicate various
modes of operation. The factory default settings are user
adjustable for application specific requirements, see Section 7
on Page 36. This follows the NAMUR recommendation NE43.
Sensor test dongle
83 17 619 Activates the sensor self-test
(only for certain sensors)
Diagnostic dongle
83 17 860 Activates the sensor self-test, the
display of the sensor vitality and the
sensor diagnostic functions
(only for certain sensors and functions)
WARNING
Before leaving the instrument for normal operation,
check the configuration and calibration for the proper
settings.
NOTICE
The correct date and time settings are important for
many functions see Section 5.8.3 on Page 22.
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