95-8533
6-11
18.2
CERTIFICATION—
FM / CSA: Class I, Div. 2, Groups A, B, C, D (T4).
Class I, Zone 2, Group IIC (T4 ).
Refer to Appendix A for FM Approval details.
Refer to Appendix B for CSA Approval details.
CE: ATEX/EMC Directive Compliant.
ATEX:
II 3 G
Ex nA nC IIC T4 Gc
DEMKO 03 ATEX 136222X
Tamb = –40°C to +85°C
IECEx: IECEx ULD 10.0004X
Ex nA nC IIC T4 Gc
Tamb = –40°C to +85°C
Note: Refer to Appendix C for ATEX
Approval and Appendix E for CE Mark details
and Special Conditions for Safe Use.
Refer to Appendix D for USCG Approval
details.
EQ22XXDCU AND
EQ22XXDCUEX DIGITAL
COMMUNICATION UNIT
INPUT VOLTAGE—
24 Vdc nominal, 18 to 30 Vdc. 10% overvoltage
will not cause damage to the equipment.
POWER CONSUMPTION—
DCU with toxic gas sensor/transmitter: 95 mA
max.
DCU with transmitter and combustible gas
sensor: 180 mA maximum during normal
operation, 500 mA during startup.
INPUTS—
4–20 mA analog signal, non-intrusive
calibration.
OUTPUTS—
Digital communication, transformer isolated
(78.5 kbps).
TEMPERATURE RANGE—
Operating: –40°F to +167°F (–40°C to +75°C).
Storage: –67°F to +185°F (–55°C to +85°C).
HUMIDITY RANGE—
5 to 95% RH, non-condensing.
VIBRATION—
FM 6310/6320.
DIMENSIONS—
See Figure 6-5.
1.2
(3.0)
2.9
(7.4)
1.75
(4.4)
2.1
(5.3)
A2237
Figure 6-6—Dimensions of Ground Fault Monitor
in Inches (Centimeters)
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