Brooks Instrument MT3809E - Manual (Page 25)

1-19
Section 1 Introduction
Models MT 3809 & 3819
Installation and Operation Manual
X-VA-MT3809-3819-eng
Part Number: 541B049AHG
September, 2008
Explosion- proof/ Flame-proof
United States and Canada UL Listed, E73889, Vol. 1, Sect. 14
Class I, Division 1, Groups C, D;
Dust Ignition-proof, Class II, Division 1, Groups E, F, G; Class III; T4
Europe – KEMA 01ATEX2207 X
II 2 G EEx d IIB T4
II 2 D T135
o C
Power Supply
5-25 Vdc; 25 mA max.
Impedance
Approximately 1 kohm with cam absent
Approximately 8 kohm with cam present
Maximum Operating Temperature
Refer to Table 1-3
Alarm Wiring Diagrams
Explosion-proof/ Flame-proof: Refer to Figure 1-7
Intrinsically Safe or Non Incendive: Refer to Figures 1-8 and 1-9
For Division 1 explosion proof installations, the optional explosion proof
enclosure must be used. This enclosure does not use the auxiliary terminal
box, as shown on some of the installation diagrams. All connections are
made directly within the housing. Cable entry device shall be certified as
Flame-proof type, suitable per the conditions of use and correctly installed.
If used with conduit, refer to Figure 1-7, a sealing device shall be provided
in accordance with Figure 1-7.
For Division 2 non-incendive installations, either the standard enclosure or
the explosion proof enclosure may be used.
For both Division 1 explosion proof and Division 2 non-incendive
installations, the barriers shown in the installation drawings are
unnecessary. However, NEC Class 2 circuits are required.
The circuits shall be wired separately or using a Multicore Cable Type
B, in accordance with EN 60079-14. Also wiring must be done in
accordance with the applicable electrical codes, ie., NEC Chapter 5,
CEC Section 18 and any local codes.
Alarm Accessories
Amplifier Power Supply (approved isolated barrier) 1 or 2 channel
approved for intrinsically safe application, remotely mounted, 115 or 230
Vac power. Single pole with double throw (SPDT) relay standard. For other
configurations, consult factory.