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Sensor settings Polytron
1. Select Set-GAS-cat .
The display alternates between the current value and
the menu item.
2. Tap [OK].
The next steps are carried out on the sensor.
3. To select the gas category on the sensor, touch the
symbol
or
with the magnetic wand.
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S
80% is displayed on the gas detector.
4. Remove the magnetic wand.
The sensor switches to an output signal that
represents the current gas category:
Output signal 20 %LEL: Gas category methane
Output signal 40 %LEL: Gas category propane
Output signal 60 %LEL: Gas category ethene
(ethylene)
5. This output signal is set for 30 seconds. Within this time
period, the next gas can be selected by placing the
magnetic wand on the area marked with the symbol
The sensor output signal then switches to the value
that corresponds to the newly selected gas category. If
no further entries are made with the magnetic wand for
more than 30 seconds, the setting is saved.
6. Check span adjustment on the gas detector (see
"Performing a span adjustment", page 18)
13.2.3 Setting the sensor type
This function defines the installed sensor type.
1. Select SNR-SET-dd/LC/DSIR .
The display alternates between the current value and
the menu item.
2. Tap [OK].
The value flashes (data entry mode).
3. Tap [UP] / [DOWN] to scroll through the sensor types.
DrägerSensor DQ
dd
DrägerSensor LC
LC
DrägerSensor IR
DSIR
For instrument firmware versions 1.5.0 and higher, the
display text DQ is not used. To install a DQ sensor, select
DD.
4. Select the sensor type and confirm with [OK].
The value is set and the menu is displayed again.
5. Tap [UP] until you have exited the menu.
Info - 301 is displayed to indicate the warm-up phase.
Err - 112 is displayed. Perform zero adjustment.
Err - 113 is displayed. Perform a span adjustment.
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®
5xx0
13.3 Sensor settings Polytron
13.3.1 Setting the LEL type (Polytron 5700 only)
Selecting a different LEL type converts the A1 and A2 alarm
level target values from internal units of ppm to equivalent
values in display units using the new LEL factor and the
existing units of the gas measurements.
The LEL (lower explosive limit) is an empirically determined
value for the gas concentration at which ignition can take
place. This value varies depending on the authority that has
defined it (example: 100 %LEL for methane is 5 Vol%
according to NIOSH and 4.4 Vol% according to IEC and PTB).
Set the LEL type as follows:
1. Select LEL - type.
The display alternates between the current value and
the menu item.
2. Tap [OK].
The value flashes (data entry mode).
.
S
3. Tap [UP] / [DOWN] to scroll through the LEL type
definitions according to the various authorities.
Ptb
Physikalisch-Technische Bundesanstalt
(PTB)
IEC
International Electrotechnical Commission
(IEC)
National Institute for Occupational Safety
NI0S
and Health (NIOSH)
Rus
in accordance with GOST R 51330.19-99
LKLV (Lowest known LEL version) denotes the
minimum of the four possible LEL values (most sensitive
setting possible).
4. Confirm with [OK].
The value is set and the menu is displayed again.
5. Tap [UP] until you have exited the menu.
Info - 305 is displayed.
Check the alarm threshold, full scale deflection, and
adjustment to ensure safe operation with the new
configuration,
13.3.2 Setting the target gas
Only for Polytron 5700 IR
The target gas can be selected from a list of up to 100 gases
and vapors in the gas library of the PIR 7000. See the
instructions for use of the PIR 7000 (9023885) for the list.
Set the target gas as follows:
1. Select Gas - set.
The display alternates between the current value and
the menu item.
2. Tap [OK].
The value flashes (data entry mode).
3. Tap [UP] / [DOWN] to scroll through the gas library.
Instructions for use
®
57x0 IR
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Dräger Polytron 5000 Series
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