MZ-RD – Multi-Zone Remote Display
20 Instruction 3015-5157
CHAPTER 4. GENERAL OPERATION
4.1. Functional Overview
Normally each gas monitor will sequentially perform measurements on its active zones without
user input. The total time it takes a gas monitor to complete a measurement cycle is directly
proportional to the number of active zones and the physical length of the air lines. Monitors linked
together on a network operate independently of each other and consequently complete their
respective measureme
nt cycles at different rates.
The MZ-RD operates by polling the network approximately once every 12 seconds to determine
the current status of the gas monitors. If more than one gas monitor is connected to the network,
it will sequentially poll each monitor for its status. This means that the more complicated the
network, the longer it will take the MZ-RD to update the status information for all zones.
To display all the zones being monitored, go to the System Screen and press the ZONES key.
4.2. The Zone Screen
The top level Zone Screen provides a summary view of zone activity across the network. Each
screen displays information from a single Multi-Zone monitor as indicated at the top of the display.
Each screen can display information for up to 8 zones, and depending on the configuration of the
system, there can be up to two screens for each Multi-Zone. Use the UP/DOWN cursor keys or
the NEXT key to
scroll the screen display.
Each box displays the zone location and the last ppm measurement. A blinking box indicates that
a measurement is currently being taken in that location. An inverse flashing box indicates an
alarm condition in that zone.
Zone Screen
To further investigate the status of any zone, select the zone and press the ENTER key. That
monitor's Zone Setup Screen #1 will be displayed.
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