Instemi
Intrinsically Safe System Checks
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Notes
Installation Data
Hazardous Area Classification
Gas Group / Temperaure Class
IIA
IIB
IIC
T1
T2
T3
T4
T5
T6
Field Instrument
Gas Group / Temperaure Class
IIA
IIB
IIC
T1
T2
T3
T4
T5
T6
Input Parameters: Maximum ...
Voltage
(U
i
)
V
Current
(I
i
)
mA
Power
(P
i
)
W
Inductance
(L
i
)
μH
mH
Capacitance
(C
i
)
nF
μF
Main Cable
Length
(l
1
)
m
Resistance / Length
(R
c
/l
1
)
Ω/m
Inductance / Length
(L
c
/l
1
)
mH/m
Capacitance / Length
(C
c
/l
1
)
μF/m
Intrinsically Safe Barrier
Gas Group
IIA
IIB
IIC
Output Parameters: Maximum ...
Voltage
(U
o
)
V
Current
(I
o
)
mA
Power
(P
o
)
W
Load Parameters: Maximum ...
Inductance
(L
o
)
μH
mH
Capacitance
(C
o
)
nF
μF
Inductance / Resistance
(L/R)
μH/Ω
Field Cable
Length
(l
2
)
m
Resistance / Length
(R
c
/l
2
)
Ω/m
Inductance / Length
(L
c
/l
2
)
mH/m
Capacitance / Length
(C
c
/l
2
)
μF/m
Calculatation
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