Operating instructions

26
6. MAINTENANCE
It is essential that operation and maintenance in explosion hazard areas are only carried out by
trained specialist personnel authorised to do so by the system operator.
For maintenance and repair work in explosion hazard areas, the standards EN60079-17 or
IEC60079-17, EN60079-19 or IEC60079-19 and the relevant national regulations must be
applied.
In the U.S. maintenance and inspection must be carried out in accordance with ANSI / ISA
RP12.6.01-2003 and the NEC.
In Canada maintenance and inspection must be carried out in accordance with CEC
6.1 Filter replacement
The protective filter should be cleaned or replaced periodically, in particular whenever
it has been noted that the response time has become longer.
When replacing a filter, ensure that the sensor is NOT touching the metallic filter cap!
6.2 Cleaning
6.2.1 Cleaning the display
To clean the display screen, use a damp cloth to avoid static.
6.2.2 Cleaning the sensor
Thanks to the very robust design of the sensor element, any cleaning required is very easy to
carry out. This can be carried out using suitable chemicals such as isopropyl alcohol (normal
industrial product). After cleaning in isopropyl alcohol, dip the sensor element in water and
allow to dry. The cleaning time should not be more than 2 mins. To avoid damaging the sensor
layer, the use of mechanical equipment is not permitted!
When screwing on the filter cap, ensure that the sensor is NOT touching the metallic filter cap!
6.3 Customer adjustment of humidity and temperature
See manual EE-PCS (product configuration software)
6.4 Ordering information for accessories
Designation Order code
Stainless steel sinter filter HA010103EX
PTFE filter HA010105
Filter for moisture measurement in oil HA010110
Stainless steel lattice filter HA010109
Ball valve ISO 1/2" interior thread with ATEX approval HA011403
Configuration adapter for connection to the PC EE-PCA
Connection cable with protective circuit
between EE300Ex and configuration adapter HA011061
Blanking plate for lower housing part HA011401
Protective barrier STAHL 9002/13-280-093-001 HA011410
Intrinsically safe 1-channel power supply device STAHL 9160/13-11-11 HA011405
Intrinsically safe 2-channel power supply device STAHL 9160/23-11-11 HA011406
Sealing plug for unused cable screw connection HA011402
Mounting flange 12mm
(0.24") HA010201
Mounting flange 6mm (0.24") HA010207
1/2" ISO screw connection 12mm
(0.24") HA011102
1/2" NPT screw connection 12mm (0.24") HA011103
1/2" welded connection 12mm (0.5") HA011109
1/2" ISO screw connection 6mm (0.24") HA011104
1/2" NPT screw connection 6mm
(0.24") HA011105
O-ring for sliding fitting HA050308
sensor retraction tool 250 bar ZM-WA-025-040-EST
sensor retraction tool 40 bar BG-WA-103-045-EST