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5-5
Specifications and Reference Data
TABLE 5-2. CSA Parametric
Parameters.
Standards Association of Australia (SAA) Certifications
E7 Flameproof:
Ex d IIB+H2 T6
Class I, Zone 1.
DIP T6
Class II.
Special Conditions for Safe Use (“X”):
For transmitters having NPT or PG cable entry thread, an appropriate
flameproof thread adaptor shall be used to facilitate application of certified
flameproof cable glands. Only SAA-certified flameproof temperature
sensors shall be used with the Model 444 Temperature Transmitter if
fitted directly into the tapped entry of the enclosure.
I7 Intrinsic Safety:
Ex ia IIC T6 (T
amb
= 40 °C)
Ex ia IIC T5 (T
amb
= 70 °C)
Class I, Zone 0
Entity Parameters:
U
i
= 30 V
I
i
= 200 mA
P
i
= 1.0 W
C
i
= 0.024 F
L
i
= 0
Refer to SAA Intrinsic Safety Drawing 00444-0264.
Special Conditions for Safe Use (“X”):
The equipment has been assessed to the “Entity” concept and upon
installation the barrier/entity parameters must be taken into account.
N7 Type “n”:
Ex n IIC T6 (T
amb
= 40 °C)
Ex n IIC T5 (T
amb
= 70 °C)
Class I, Zone 2
Special Conditions for Safe Use (“X”):
The equipment must be connected to a supply voltage which does not
exceed the rated voltage. The enclosure end caps must be correctly fitted
while the equipment is powered.
Barrier Manufacturer/Model
CSA Approved for
Class I,
Division 1 Groups
A B C D
Any CSA approved zener barrier
≤30 V, ≥330 ⍀ or
≤28 V, ≥300 ⍀ or
≤22 V, ≥180 ⍀
••••
Foxboro Converters
2AI-I2V-CGB
2AI-I3V-CGB
2AS-I2I-CGB
2AS-I3I-CGB
3AD-I3IA CS-E/CGB-A
3A2-I2D CS-E/CGB-A,
3A2-I3D CS-E/CGB-A
3A4-I2DA CS-E/CGB-A
3F4-I2DA1 CS-E/CGB-A
NA•••
Any CSA approved zener barrier
≤30 V, ≥150⍀
NA NA • •