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13. Do not remove the silicone rubber protective sleeve from the enclosure of equipment in Hazardous areas
14. All intrinsically safe parameters must be observed for different external measuring ports on the different models in
accordance with Ex instruction.
15. Intrinsically safe electrical system between IS apparatus and Associated apparatus or other IS apparatus:
Table 1 Intrinsically safe parameter
Item I.S Interface
External Measuring
Instrument
System
Equipment group IIC IIC IIC
Level of protection ia ia ia
Temperature class T4 T4 T4
Ambient temperature -20°C~+50°C -20°C~+50°C
Voltage Uo Ui(30V)
Current Io Ii(100mA)
Power Po Pi(0.75W)
Cable parameters
Capacitance Co Ci Cc
Inductance Lo Li Lc
L/R ratio / / /
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