2 Safety instructions (English)
15
2.3.
Labelling acc. to Directive 94/9/EC
II 2 (1) G Ex ia [ia] IIC T4
• Instrument group: II, use only in areas where there is no risk of
firedamp
• Instrument category: Category 2 transmitter with connection for
a category 1 probe
• Media: For potentially explosive mixtures of air and flammable
gases, vapours or mists
Notes on the application ranges:
Instrument
category
Potentially explosive gas/air mixture (G)
Category 1
Zone 0, 1 or 2
Category 2
Zone 1 or 2
Category 3
Zone 2
2.4.
Labelling of the type of protection
Ex ia [ia] IIC T4
• Electrical operating equipment protected against explosion acc.
to European standard
• Type of protection: ia (intrinsically safe)
• Gas group: IIC
• Temperature
class:
T4
2.5. Parameters
Supply/signal circuit
channel 1,
intrinsically safe
feed
Supply/signal circuit
channel 2,
intrinsically safe
feed
Output/probe
circuit
Ui 28 V DC
Ui 28 V DC
Uo 5.2 V DC
Ii 93 mA DC
Ii 93 mA DC
Io 93 mA DC
Pi 650 mW
Pi 650 mW
Po 121 mW
Li negligible
Li negligible
Lo 0 µH
Ci 5 nF
Ci 5 nF
Co 20 µF
