Special States; Ending Special States; Led And Symbol Indications; Menu - Dräger Polytron 5000 Série Mode D'emploi

en Operation

8.1.2 Special states

If the instrument is in a special state, a proper measurement
or alarming can no longer be guaranteed.
This is the case:
– When the gas concentration exceeds the measuring
range.
– When a fault occurs.
– During calibrations.
– During bump tests.
– During warm-up phase.
– During maintenance.
For the current of the analog interface corresponding to the
analog signal, see 17.2.
Display example Description
Value is over measuring range
(Over range / Upper hockey sticks)
The gas concentration is beyond the
measuring range of the sensor.
Analog interface: Measuring range
exceeded
Relays: A2 relay switches
Value is under measuring range
(Under range / Lower hockey sticks)
The gas concentration is beyond the
measuring range of the sensor.
Analog interface: Drift below zero
Relays: Fault relay switches
Fault indication
A fault has been detected.
The display toggles between Err and
the error number.
Analog interface: Fault signal
Relays: Fault relay switches
Warning indication
A warning has been detected.
The display toggles between Info and
the warning number.
Analog interface: Maintenance sig-
nal
Relays: Fault relay switches
Warm-up phase Polytron 5xx0
except Polytron
Analog interface: Maintenance sig-
nal
Relays: Fault relay switches
During warm-up phase 2 the fault
relay does not switch.
Warm-up phase Polytron
Time in minutes until warm-up is com-
plete or time in minutes until calibra-
tion is allowed.
Analog interface: Maintenance sig-
nal
Relays: Fault relay switches
During warm-up phase 2 the fault
relay does not switch.
®
5100 EC
1)
®
5100 EC
1)
1) For warm-up phase 1, the fault relay behavior is configurable (see
"Setting fault relay warm-up 1", page 22).

8.1.3 Ending special states

Value under/over measuring range
The display indicates that the gas concentration is beyond the
measuring range of the sensor. The indication disappears as
soon as the gas concentration is within the measuring range.
NOTICE
Sensor malfunction
Gas concentrations beyond the measuring range of the
sensor might cause sensor malfunctions.
► Check the calibration.
®
Polytron 5200 CAT-specific:
An over range has to be acknowledged with [OK] after
verifying that the gas concentration is below 100 %LEL (e.g.
using a portable instrument).
Fault / warning indication
Faults and warnings are non-latching. If the fault or warning
condition clears, the message disappears.
To solve warning and fault conditions, display the error code
or warning message (see "Menu navigation", page 15) and
begin troubleshooting (see "Technical data", page 29).
8.2

LED and symbol indications

Symbol LED
Red
Yellow
Green
LED status
– When the first alarm (pre alarm) has been triggered the
red LED flashes in single mode
– When the second alarm (main alarm) has been triggered
the red LED flashes in double mode
– When an alarm is acknowledged before the alarm
condition clears, the red LED is lit continuously to indicate
the present alarm condition.
NOTICE
The alarm triggering function is only available when the
optionally integrated relay module is used.
8.3

Menu

Menu items toggle between their full name and their setting
(e.g. A1 - Set - 16.9). Values and setting choices flash when
they can be edited (data entry mode).
Description
Alarm Triggered
Fault
Power on
.
.
®
Dräger Polytron 5000 Series