Specifications

Multi-Zone Gas Monitors
14 P/N: 3015-5074 Rev 10
WARNING: Copper conductors for connection to supply mains must be made in
accordance with NEC/CEC and local codes.
WARNING: The AC power ground wire must first be connected to the monitor’s ground
stud. Under no circumstances should this monitor be operated without a protective ground.
Doing so poses a potential shock hazard, and is also a violation of electrical safety
standards applicable to this type of equipment.
IMPORTANT: Drilling holes in the MZ enclosure may damage the unit and will void the
warranty. Please use the knockouts provided for electrical connections.
A switch or circuit breaker rated 1.0 A, 250 VAC must be attached to the monitor’s AC power leads. This
switch must also be located in close proximity to the monitor, and be in easy reach of the operator. This
switch should also be clearly marked as the monitor’s main AC disconnect device. The circuit breaker or
switch must disconnect all current-carrying conductors (i.e., live and neutral).
Figure 2-5. Multi-Zone AC Input Power and Ground Connections
2.5. Connecting Communications Devices
2.5.1. Remote Display Module (RD) Connection
The MZ is connected to the optional RD using a shielded twisted pair instrument cable. The maximum
distance between the farthest MZ and RD is 4500 feet.