Distance Considerations For Installation - Honeywell XNX Quick Start Manual

Searchpoint Optima Plus and Searchline Excel and 16 to 32 VDC dependent on
the limitations of device for the generic 4-20mA input.
Loads
The use of High Inrush or Inductive loads may affect the performance of the XNX.
For best reliability use resistive loads only.
2�2 Distance Considerations for Installation
Types of Installations
There are three basic types of installation: a single transmitter; multiple transmitters
connected to a single power source; and multiple transmitters connected in a "daisy-
chain" configuration.
Power Source Selection
The power requirements for different transmitter configurations are:
• XNX EC (Toxic): 6.2 watts
• XNX mV (Catalytic): 6.5 watts
• XNX IR with Searchpoint Optima Plus: 9.7 watts
• XNX IR with Searchline Excel: 13.2 watts
Wire Selection
The type of wire used for connections has an effect on the distance of the
installation. This is because some of the voltage is lost in the wire on the way to
the transmitter.
Single Transmitter Distances
For installations that have dedicated wiring between the transmitter and the power
supply, use the following chart. These distances assume stranded wire is used.
Power Supply
XNX mV or EC
With Sensor
XNX IR with
Searchpoint Optima Plus
XNX IR with
Searchline Excel
Note
If multiple transmitters are using the same power supply, make sure the
power supply wattage rating is high enough to power all transmitters
simultaneously.
XNX Universal Transmitter Quick Start Guide
OR
Class 2
Single Transmitter Distances
18 AWG
[1.0 mm
1140 feet
[347 meters]
660 feet
[201 meters]
550 feet
[168 meters]
Class 2
Power Supply
16 AWG
] [1.5 mm ]
2 2
1810 feet
[551 meters]
1060 feet
[323 meters]
890 feet
[270 meters]
14 AWG 12 AWG
[2.0 mm ] [3.5 mm
2
2890 feet 4620 feet
[880 meters] [1408 meters]
1690 feet 2690 feet
[515 meters] [820 meters]
1410 feet 2260 feet
[430 meters] [690 meters]
]
2
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