Dräger Polytron 8200, Instructions For Use Manual

Page: 13 / 35

Operation
Dräger Polytron 8200/8310 13
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A1 Alarm limit and measurement units
1
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A2 Alarm limit and measurement units
1
4.4 Switching to the Quick Menu mode
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Tap and hold for 1 to 2 seconds.
The Quick Menu will open. This menu is displayed without
any password request. No changes can be made.
The selected information about status and device settings
can be retrieved (e.g. warning messages, error messages,
installed modules and calibration data).
4.5 Switching to Menu mode
(password protected)
1. Tap and hold for longer than 3 seconds.
The password request appears.
2. Enter the password and confirm.
The screen for password entry appears.
3. Set the password and confirm the entry.
The menu hierarchy corresponding to the entered password
will open.
z
An error message appears if the entered password is invalid.
Password presets:
Password for the Calibration menu: _ _ _ 1
Password for the Settings menu: _ _ _ 2
4.6 Measurement mode
z
Switch on the power.
{
The device runs through a start-up sequence (LCD test
by inverting the video, LED test, software version and
initialization) and starts the warm-up phase. The display
indicates that the sensor will be ready to operate in
hh:mm:ss (the countdown begins) and the Polytron
8200/8310 sends the Maintenance signal.
{
After the warm-up phase, the device passes into the
measurement mode.
{
The current gas concentration, the selected gas and
the units of measure appear on the display.
{
The LED lights green.
{
The sensor is ready to take measurements.
4.6.1 Analog signals
In measurement mode the output current of the device is
between 4 and 20 mA and is proportional to the measured gas
concentration.
The device uses various current values to indicate different
operating modes. This conforms to the NAMUR NE43
recommendation. The 4-20 mA interface on the device can be
customized and configured to individual requirements.
The device is provided with suitable standard settings at the
factory (see chapter 12.3 on page 29).
1 Only displayed when relay is configured.
WARNING
The configuration and calibration settings must be
checked before the device is operated in measurement
mode.
NOTICE
The correct date and time settings are important for
many functions (see chapter 8.2.3 on page 19).
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