4.1 95-866122
AppenDix A
FM APPROVAL DESCRIPTION
Class I, Div. 1, Groups B, C & D (T5);
Class I, Div. 2, Groups B, C & D (T4);
Class I, Zone 1/2 AEx d IIC (T5);
Class II/III, Div. 1/2, Groups E, F & G.
T
amb
–55°C to +75°C
NEMA/Type 4X, IP66
Conduit seal not required.
Performance verified in accordance with:
ANSI/ISA-92.00.01
ANSI/ISA-12.13.01 (CGS excluded)
FM 6310/6320
ANSI/ISA-12.13.04/FM 6325
This approval does not include or imply approval of gas detector heads or other apparatus to which the subject
instrument may be connected. In order to maintain a Factory Mutual Research approved system, the measurement
input signal to which this instrument is connected must also be approved by Factory Mutual Research.
NOTE
Consideration must be given to overall Gas System Performance Requirements.
WARNING
When a sensor/detector is connected directly to the UD10 housing, the lower ratings of the two devices
will prevail.
A-1
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