User's Guide
Table Of Contents
l Verify that each device has a good network connection.
l Remember that using a Ranger Pro ISA100 sensor as a router decreases its battery life.
l Remember to stay within the recommended number of hops per device. (See Plan Device
Placement on page13.)
l ISA network device managers limit the number or IO/Router enabled devices. Refer to the
vendors documentation for details.
Move the Device, Backbone Router, or Access Point
Relocating a device or reorienting its axis or orientation relative to the router or access point as
little as 6 cm (2 1/3 inch), or one-half of a 2.4 GHz wavelength, may improve signal strength.
Ranger Pro devices are designed for optimal RF propagation when the device's x-axis is in the
horizontal plane.
Change access points
l If permitted, use a higher gain antenna on the backbone router or access point. Verify that
the resulting narrowly focused radio frequency distribution pattern meets your needs.
l Modify the antenna polarization of the backbone router or access point.
l Add a backbone router or access point
Verify Signal Strength and PacketError Rates
Check that the devices' signal strength and packet error rate are within your network vendor's
guidelines. Use your wireless network gateway to monitor device signal strength and packet
error rates.
l Signal strength (RSSI)must be above -85 dBm, and preferably above -78 dBm.
l For ISA100 networks the packet error rate (PER) should be less than 50%, and preferably less
than 20%.
5.2 Validate Device Data
Depending on the wireless management system you are using, there are several ways to
validate that each device is transmitting data.
Initial publication of measurement data may take some time after devices have joined
the network. After the initial period, during which the network is forming, measurements
are published at the configured rate.
l Bently Nevada Ranger Pro ISA100 Gateway device manager: Verify that the publication
status indicator (icon) is colored and the measurements are displayed in the Readings
pane.
l Honeywell OneWireless device manager:Verify the measurements are displayed in the
Honeywell user interface and verify that the “Input Publication” parameters are active.
l Yokagawa YFGW410 device manager: Verify that the operation status is Published(for
sensors) or Not Published (for 70M300 repeater devices).
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Ranger Pro Wireless Condition Monitoring Device
User Guide 125M6113 Rev. F