
4 Start-up GEH 01
Page 14 of 26 HI 800 183 E Rev. 2.00
4 Start-up
This chapter describes how to install the GEH 01 subrack.
4.1 Mounting
To ensure faultless operation, choose a suitable mounting location for the subrack in
accordance with the operating requirements.
Observe the following points when mounting the module:
Mount the subrack on horizontal DIN rails to ensure effective cooling.
A distance of at least 100 mm above and below the subrack must be maintained.
Do not mount the subrack above heating equipment or any heat source.
For more information, refer to HIMatrix system manual for the modular system (HI 800 191 E).
4.1.1 Mounting the GEH 01 Subrack in Zone 2
(EC Directive 94/9/EC, ATEX)
The subrack is suitable for mounting in zone 2. Refer to the corresponding declaration of
conformity available on the HIMA website.
When mounting the device, observe the special conditions specified in the following section.
Specific Conditions X
1. Mount the subrack in an enclosure that meets the EN 60079-15 requirements and achieves
a type of protection of at least IP54 in accordance with EN 60529. Provide the enclosure with
the following label:
Work is only permitted in the de-energized state
Exception:
If a potentially explosive atmosphere has been precluded, work can also performed when the
controller is under voltage.
2. The enclosure in use must be able to safely dissipate the generated heat. The power
dissipation (PV) of each GEH 01 subrack is 9 W at maximum output load.
3. The 24 VDC power must come from a power supply unit with safe isolation. Use power
supply units of type PELV or SELV only.
4. Applicable standards:
VDE 0170/0171 Part 16, DIN EN 60079-15: 2004-5
VDE 0165 Part 1, DIN EN 60079-14: 1998-08
Pay particular attention to the following sections:
DIN EN 60079-15:
Chapter 5 Design
Chapter 6 Terminals and cabling
Chapter 7 Air and creeping distances
Chapter 14 Connectors
DIN EN 60079-14:
Chapter 5.2.3 Equipment for use in zone 2
Chapter 9.3 Cabling for zones 1 and 2
Chapter 12.2 Equipment for zones 1 and 2