Brooks Instrument 3600 Series - Manual (Page 10)

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Section 1 Introduction Installation and Operation Manual
X-VA-MT3600-eng
Part Number: 541B075AAG
February, 2011
Models MT3600, MT3601 & MT3602
Alarm Electrical Classification
All alarms are CSA: Canada and USA certified intrinsically safe,
explosion proof or in non-incendive. All alarm configurations are
suitable for indoor and outdoor operation.
Reed Switch Only Units
Refer to control drawing, Figure 1-10, for details on IS and Division 2
installations and entity parameters.
IS for Division 1, Class I, Groups A, B, C, D
Class II, Groups E, F, G
Class III
Enclosure 4X
Required Accessories:
Approved switch isolator/power supply (available from Brooks) or entity
approved safety barrier.
Entity parameters: Vmax 30 V, Imax 100 mA, Li = 0, Ci = 0
Nonincendive for Division 2, Class I, Groups A, B, C, D
Class II, Groups E, F, G
Class III
Enclosure 4X
Explosion Proof for Division 1 & 2, Class I, Groups C, D
Class II, Groups E, F, G
Class III
Enclosure 4X
Relay Units
Explosion Proof for Division 1 & 2, Class I, Groups C, D
Class II, Groups E, F, G
Class III
Enclosure 4X
Electromechanical Relay Specifications
Coil operating voltage:120 Vac -20% +10%, 50-60 Hz
Contact rating: 10 amps resistive, 7 amps inductive
Relay Configuration: Single channel (1) DPDT, Dual Channel (2) SPDT
Reed Switch Specifications
Refer to control drawing, Figure 1-10, for limits that apply to IS
applications.
Voltage: 140 Vac maximum, 50-60 Hz, 200 Vdc maximum
Power: 10 Watts maximum
Current: Determined by calculation so that power does not exceed 10
watts, however the current is never to exceed 0.5 amps.
Example: I (amps) = (watts) / (operating voltage)
I (amps) = (10) / (120)
I (amps) = 0.083
Alarm Hysteresis
Approximately 4 mm (0.16 inch) of float travel