Siemens SIPROCESS GA700 Compact Operating Instructions page 66

Commissioning
5.1 Basic safety notes
Unsuitable reference gas
Explosion hazard
The introduction into the OXYMAT 7 of a gas unsuitable for combustible media, flammable
reference gas can lead to an explosion.
• Use only nitrogen as the reference gas for flammable sample gases.
• Make sure that the reference gas pressure is always 2000 hPa (± 150 hPa) above sample gas
Absence of pre-purging
Risk of explosion in hazardous areas.
Explosive atmosphere existing in a device with pressurized enclosure (type of protection Ex p)
can result in an explosion during commissioning.
• Ensure that the device is pre-purged before it is commissioned.
• Ensure that purging time, quantity and medium are correctly observed. Refer to the
NOTICE
Condensation in the device
Damage to device through formation of condensation if the temperature difference between
transportation or storage and the mounting location exceeds 20 °C (36 °F).
• Before taking the device into operation, let the device adapt for several hours in the new
66
WARNING
pressure.
WARNING
information in Technical data (Page 87).
environment.
SIPROCESS GA700 rack and wall mounted devices
Compact Operating Instructions, 06/2023, A5E35134047-AB