Measured Value Status(Pv_Status); Maintenance; Sensor Change; Replace Sensor - Dräger Polytron 6100 EC WL Gebrauchsanweisung

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Maintenance

12 Maintenance
WARNING
Risk of explosion!
In potentially explosive atmospheres, electrostatic discharge
may cause sparks on the antenna.
► Do not clean antenna in explosion-hazard areas with a dry
cloth. Use a damp cloth for cleaning.
WARNING
Risk of explosion!
In areas where there is a risk of dust explosion, electrostatic
discharge may cause sparks on the housing and sensing
head.
► Do not clean housing and sensing head in explosion-
hazard areas with a dry cloth. Use a damp cloth for
cleaning.
WARNING
Risk of explosion!
Replacement of components may impair intrinsic safety.

12.1 Sensor change

The sensor can be replaced in a hazardous area without
interrupting the supply voltage. The sensor can be changed at
any time.
When replacing with a sensor of the same type (same order
number as the current sensor), the configuration settings are
retained. If a different sensor type (different order number) is
used, the configuration settings are overwritten with the
factory settings of the new sensor.
When the sensor blocking feature is enabled, the use of
other sensors (based on the order number of the current
sensor) is disabled.

12.1.1 Replace sensor

1. Replace the old sensor with a new sensor:
a. Loosen the set screw (Fig. B 2).
b. Unscrew bayonet ring (Fig. B 3).
c. Remove old sensor.
 Measured value status "Bad" (substatus sensor not
detected or defective) is output.
d. Insert new sensor (Fig. B 4) into opening.
Align Dräger logo with marking on housing (Fig. B 5).
 Measured value status "Bad" (substatus warm-up
phase 1 active) is output.
e. Secure the sensor with the bayonet ring.
f. Tighten the set screw. Required for installation in
Zone 22.
2. If necessary, attach the label included with the sensor to
the gas detector.
34
3. The sensor warm-up time is displayed in PolySoft.
4. Calibrate the gas detector after completion of warm-up

12.2 Bump test

A bump test is a quick test to check the sensitivity without
transmitting the measured value to the controller. The feature
is available in PolySoft.

12.3 Testing the signal chain

To test the signal chain from the gas detector to the controller,
the gas reading (PV), measured value status (PV_STATUS),
and the device status (DIAG_STATUS) are simulated. The
simulation mode is available in PolySoft.

12.4 Battery pack

12.4.1 Battery charge

The gas detector outputs three warning thresholds for the
battery charge during operation.
DIAG_STA-
TUS
POW-
ER_LOW
POW-
ER_LOW,
POW-
ER_CRITI-
CAL
POW-
ER_LOW,
POW-
ER_CRITI-
CAL

12.4.2 Changing the battery pack

For information on changing the battery pack, see "Set up
battery operation", page 29.
Instructions for use |
Dräger Polytron
 Measured value status "Bad" (substatus warm-up
phase 1 active) remains active until warm-up phase 1
is completed. Maximum warm-up time of a new
sensor: see the instructions for use of the sensor.
phase 2.
Mea- LED dis-
sured play
value
(reading)
available none
available Yellow
LED
flashes
NaN Yellow
LED
lights up
continu-
ously
®
6100 EC WL, Dräger Polytron
Time Explana-
before tion
com-
plete dis-
charge
2-6 Order
months battery
pack.
Tempera- Change
ture battery
depen- pack.
dent
approx. 1-
3 weeks
(at least
24 oper-
ating
hours
after first
occur-
rence).
- A shut-
down is
possible
at any
time.
®
Repeater ISA