ThermoWorks RTR-500GSM WIRELESS LAN OR GSM (CELLULAR) LOGGERS - Manual (Page 6)

2 Remote Unit Settings
The Remote Unit Settings screen is used to register Loggers to the
system. When a Logger is placed on the 500GSM you can set, via
optical communication, the Logger recording parameters, assign it to a
logical group and give it a logical name, set the RF communication
channel, enable warning monitoring and set the upper and lower
reading limits which trigger warnings. Every Logger that is to be
monitored or downloaded by the RTR-500GSM must be registered to it
using this screen.
One note about Warning Monitoring: When you set Warning
Monitoring to On for a logger you will have the option to enter a
Warning Judgment Time. This is not the warning sampling Interval, which is fixed at 10 minutes for the RTR-500GSM. This time
is the duration that the set limit must be exceeded before a warning notification will be sent.
3 Repeater Settings
If you intend to use wireless repeaters in your system to address
communication range issues you will use this screen to register them. If
not, you can skip this section (screen) entirely. The only tricky part
here is that in order to register a repeater to your system you will need
to plug an RTR-500 into a USB port on your PC with the Repeater
Setting screen selected. You can do this by plugging it into a 2
nd USB
port on your PC, or by unplugging the 500GSM and using its USB
connection for the repeater. Once the RTR-500 is connected click the
“Register” button in the Repeater Setting screen. Make the appropriate
entries in the pop-up window and click on Register. The repeater will
now be listed in the Repeater Settings screen. When finished
disconnect the RTR-500 from the USB port and reconnect the 500GSM.