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Troubleshoot Sensors
This section contains the following topics:
•
Troubleshooting AC-powered Sensors
•
Troubleshooting Battery-powered Sensors
Troubleshooting AC-powered Sensors
Table 15 contains troubleshooting information for AC-powered sensors. Many of the
troubleshooting suggestions given below for battery-powered sensors apply to AC-powered sensors
as well.
Problem
Cannot access the AMP.
No monitoring data on the AMP.
Troubleshooting Battery-powered Sensors
Overview
The SNS Sensor Configuration Utility can be used to help troubleshoot sensor issues with
connecting to a wireless network. The troubleshooting suggestions below assume you have the
SNS Sensor Configuration Utility installed on your computer and that you know how to use it.
When the programming cable is connected to the sensor, the sensor goes into "setup mode". The
sensor continuously attempts to connect to the wireless network and will stay connected until the
programming cable is disconnected, or the sensor setup has changed.
The sensor is in "sensor mode" when the programming cable is not connected and the sensor
power switch is turned on. In "sensor mode", the sensor remains in a low power state. When ready
to transmit, the sensor will turn on, connect, transmit a UDP packet, and then go back to the low
power state.
General Troubleshooting Suggestions
1. The sensor will not work reliably with signal strengths below about -65 dBm. If the signal
strength is smaller than that, the sensor may work marginally or not at all. Obviously the
better the signal strength, the better the chance the sensor has at delivering a sensor
packet.
2. The signal strength will vary from sample to sample. You should take multiple samples to
determine the signal strength. Signal strength is available in the Status tab and the Available
Networks window (press the "Find Networks" button in the Setup tab).
Primex Wireless, Inc.
Table 15: Troubleshooting AC-powered Sensors
SNS™ Temperature and Humidity Sensors Installation Guide
Resolution
Check wireless signal and network interface
(wired/wireless) using the browser-based configuration
tool. Refer to Appendix A: Browser-based
Configuration Tool on page 54.
Check wireless signal and network interface
(wired/wireless) using the browser-based configuration
tool. Refer to Appendix A: Browser-based
Configuration Tool on page 54.
Defective sensor
50
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