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15.6 Factory default settings
15.6.1 Unchangeable settings for relays, LEDs,
and alarms
Setting
Fault relay:
Energized / normally open
Yellow LED:
Lights up when an error message is
present
Red LED:
Flashes once when an A1 alarm is
present. Flashes twice when an A2
alarm is present. If an alarm is config-
ured as acknowledgeable and the
alarm has been acknowledged, the
LED stops flashing once or twice and
lights up continuously.
Alarm hierarchy:
A2 has higher priority than A1 at the
LED. However, the A1 and A2 relays
operate independently of one another.
Example: If A1 is acknowledgeable and
A2 is not and the gas concentration is
so high that A1 and A2 are triggered,
relay A1 drops out when the alarm is
acknowledged. However, the red LED
continues to flash twice as long as the
condition that triggers alarm A2 exists.
Alarm hysteresis:
5% of the full scale deflection
15.6.2 Fixed setting: capture range
15.6.2.1 Capture range
The capture range blanks out measurement fluctuations.
Measurement fluctuations are minor variations in measured
values (such as signal noise, variations in concentration).
Those variations do not change the transmitted or displayed
value. Measured values within this range will be displayed
with the capture value. Measured values outside the capture
range will be displayed with the actual measured value.
Capture value (offset)
The capture value is displayed continuously, as long as the
measured value ranges between the upper and lower capture
value limits.
Upper capture value limit
The upper capture value limit marks the upper limit of the
range in which the capture value is displayed.
Lower capture value limit
The lower capture value limit marks the lower limit of the
range in which the capture value is displayed.
Instructions for use
|
Dräger Polytron 5000 Series
15.6.2.2 Capture range settings
For Polytron 5xx0 transmitters, the capture range cannot be
changed. It is pre-set by the sensor. The capture range can be
deactivated with the Dräger Polysoft PC software.
Low
Polytron 5100
Depending on the sensor
EC
Polytron 5200
-5 % LEL
DD/DQ
Polytron 5200
-0.5 % LEL
LC
Polytron 5310 IR -3 % LEL
Polytron 7000 IR
Type 334
methane
-750 ppm
propane
-315 ppm
ethylene
-405 ppm
Polytron IR 7000
Type 340
methane
-750 ppm
propane
-85 ppm
Polytron IR 7200 -220 ppm
15.6.3 Settings that can be changed in the menu
15.6.3.1 Polytron 5xx0
Menu
Default setting
Relay active with
active with alarm
alarm / no alarm
A1 alarm: Direc-
rising (falling for
tion
DrägerSensor O
A2 alarm: Direc-
rising
tion
A1 latch mode
non-latching
A2 latch mode
latching
A1 acknowledge-
acknowledgeable
ment mode
A2 acknowledge-
non-acknowledge-
ment mode
able
A1 relay measur-
energized
ing mode
A2 relay measur-
ing mode
Password
0 0 0 0 (no pass-
word protection)
LCD setting
on
Maintenance sig-
static
nal (CAL-set)
|
en
Technical data
Capture
upper
value
0 % LEL
2 % LEL
0 % LEL
0.2 % LEL
0 % LEL
2 % LEL
0
750 ppm
0
315 ppm
0
405 ppm
0
750 ppm
0
85 ppm
340 ppm
200 ppm
Range
on / off
falling / rising
)
2
latching / non-
latching
acknowledgeable /
non-acknowledge-
able / pre-acknowl-
edgeable
energized / de-
energized
on / off
dynamic / static
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