Location Considerations - Verasys - Wireless Device - ZFR1800 Series Wireless Field Bus System

Follow these guidelines when locating a ZFR1825 Coordinator within a ZFR Pro Series system.

• Locate the ZFR1825 Coordinator so that it is easily accessible.
• For best signal transmission, vertically orient the ZFR1825 Coordinator’s antenna with at least50 mm (2 in.) exposed below (and clear of) any pipes, duct work, or other metal obstructions. Do not mount the antenna in a horizontal orientation.
• Due to the nature of the radio frequency waves, a wireless device may have significantly different signal strengths if its position changes relative to another wireless device or if its environment changes. If a ZFR1825 Coordinator shows poor signal strength, you can improve the signal strength by moving the device’s antenna a couple of inches in either horizontal direction.
• Locate the ZFR1825 Coordinator’s antenna inline-of-sight with as many ZFR Pro Routers as possible.
• Do not mount the ZFR1825 Coordinator’s antenna in recessed areas, metal enclosures, or shelving units.

Follow these additional guidelines when installing a ZFR1825 Coordinator:

• Locate the ZFR1825 Coordinator near the center of the associated array of ZFR Pro Routers.
• At a minimum, position a ZFR1825 Coordinator within 15.2 m (50 ft) of at least twoZFR Pro Routers.
• At a minimum, position all ZFR1811 Routers within 15.2 m (50 ft) of at least two other ZFR Pro Routers or one ZFR Pro Router and the ZFR1825 Coordinator.
• Locate the ZFR1825 Coordinator on the same floor as the associated ZFR Pro Router andWRZ Series Sensors.
• Test the transmission signal strength between the ZFR1825 Coordinator and the associated ZFR Pro Routers to ensure a reliable mesh network is in place. For more information, see the Verasys Wireless Pro System Technical Bulletin (LIT-12012940)
• Avoid metal obstructions and concrete or brick walls between the ZFR1825 Coordinator and the associated ZFR Pro Router and WRZ Series Sensors.
• Avoid configurations where a microwave oven is located between two wireless devices. At a minimum, ensure no microwave ovens are within 6 m (20 ft) of a ZFR1825 Coordinator.