GEM5000 Gas Analyzer
Page 7 of 102
2.2 Instructions for safe use
For ATEX and IECEx the 5000 series of gas analysers are certified to Hazardous
Area Classification
II 2G Ex ib IIA T1 Gb (Ta = -10ºC to +50ºC)
It is vital instructions are followed closely. It is the responsibility of the operator to
determine the protection concept and classification required for a particular application.
(Reference European ATEX directive 2014/34/EU)
The following instructions apply to equipment covered by certificate numbers SIRA
11ATEX2197X and IECEx SIR 11.0089X:
The equipment may be used with flammable gases and vapours with apparatus
group IIA and temperature class T1.
The equipment can contain gas sensing heads for the detection of particular gases.
The inclusion of a sensor does not infer that the equipment is suitable for the use of
gases with a temperature class of less than T1.
The equipment is only certified for use in ambient temperatures in the range -10ºC
to +50ºC and should not be used outside this range.
The equipment must not be used in an atmosphere of greater than 21% oxygen.
Repair of this equipment shall be carried out in accordance with the applicable code
of practice.
When used in a hazardous area only use GF5.2 temperature probe (SIRA
11ATEX2197X and IECEx SIR11.0089X). For connector C, the GF5.4 anemometer
(BVS 04ATEXE194) for use with ATEX only. The analyser should not be connected
to any other devices in the hazardous area including the GF-USB lead (connector A)
or GF3.9 battery charger (connector B) supplied with the analyzer.
Do not charge, recharge or open in a potentially explosive atmosphere.
In hazardous area only use “Temperature Probe GF5.2” in Connector B.
Connector C (Uo=10V,lo=5mA,Po=50mW,Ci=0,Li=0,Co=100uF,Lo=1000mH),
Connector B (Uo=5V,lo=6mA,Po=7mW,Ci=0,Li=0,Co=100uF,Lo=1000mH)
MAXIMUM NON-HAZARDOUS SUPPLIES:
Connector A - Um=6V Connector B - Um=10.1V
The safe area apparatus that is to be connected to the USB Port shall be a Safety
Extra Low Voltage (SELV) or Protective Extra Low Voltage (PELV) circuit.
Only a Geotechnical Instrument battery pack part number 20087 or 2011113 is
permitted as a replacement. This battery pack is not field replaceable and shall
only be changed in a safe area by QED personnel.
Only Battery Charger type GF3.9 shall be used to recharge the batteries via
Connector ‘B’.
If the equipment is likely to come into contact with aggressive substances, e.g.
acidic liquids or gases that may attack metals, or solvents that may affect
polymeric materials, then it is the responsibility of the user to take suitable
precautions, e.g. regular checks as part of routine inspections or establishing from
the material’s data sheet that it is resistant to specific chemicals that prevent it
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