Dräger Polytron 8200, Инструкция по эксплуатации

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Maintenance
Dräger Polytron 8200/8310 27
10 Maintenance
10.1 Maintenance intervals
10.1.1 During commissioning
z
Check calibration.
z
Check signal transmission to controller and triggering
of alarms.
10.1.2 Every 6 months
z
Inspection by trained service personnel.
The inspection intervals must be established in each individual
case and shortened if necessary, depending on technical safety
considerations, engineering conditions, and the technical
requirements of the equipment.
Contact DrägerService if you wish to take out a service
contract and have any repairs carried out.
10.1.3 As required
z
Change the sensor, see chapter 10.2 on page 27.
10.2 Changing the sensor
The sensor is changed as follows:
1. Switch off the power to the device or declassify the area
according to the local regulations.
2. Release the set screw and unscrew the housing cover from
the device.
3. Lift the handle and remove the enclosure with the main
electronics.
4. Disconnect the sensor cable.
5. Unscrew the DrägerSensor.
6. Pass the sensor cable through the threaded connection in
the housing.
7. Screw in the DrägerSensor.
8. Plug the sensor cable into the socket.
9. Re-fit the sensor electronics and enclosure.
10. Screw the housing cover on again and tighten the set screw.
11. Switch on the power to the device.
12. If necessary, switch off SIL activation (see chapter 8.1 on
page 18).
13. Calibrate the device if necessary (see chapter 5 on page 14).
14. If required, switch on SIL activation (see chapter 8.1 on
page 18).
10.3 Changing the main electronics
1. Switch off the power to the device or declassify the area
according to the local regulations.
2. Release the set screw and unscrew the housing cover from
the device.
3. Lift the handle and remove the enclosure with the main
electronics.
4. Remove the protective caps for the connectors.
5. Unscrew the connector locking ring for the power supply
and relay and withdraw the connector.
6. Change the main electronics.
7. Plug the sensor cable and the connector for the power
supply and relay into the corresponding sockets and screw
them tight.
8. Re-fit the dust caps for the connectors.
9. Re-fit the sensor electronics and enclosure.
10. Screw the housing cover on again and tighten the set screw.
11. Switch on the power to the device.
12. Check and adjust the configuration as required.
13. Calibrate the device if necessary (see chapter 5 on page 14).
11 Disposal
WARNING
As a matter of principle, always check a newly installed
sensor with measured gas to insure correct operation.
CAUTION
When the sensor is changed, all settings and
parameters must be checked for correctness.
WARNING
Five threads must be engaged to insure explosion
protection (see chapter 12.1 on page 29).
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CAUTION
When the main electronics are changed, all settings
and parameters must be checked for correctness.
Disposal of electrical and electronic equipment:
EU-wide regulations governing the disposal of electric
and electronic appliances which have been defined in
the EU Directive 2002/96/EC and in national laws
have been effective from August 2005 and apply to
this device. Common household appliances can be
disposed of using special collecting and recycling
facilities. However, as this device has not been
registered for household usage, it must not be
disposed of through these means. The device can be
returned to your national Dräger Safety Sales
Organization for disposal. Please do not hesitate to
contact the above if you have any further questions on
this issue.
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