To upgrade the Monitor, connect your PC to the Monitor using an RS-232 DB9 cable, and use a terminal program.
Microsoft Windows usually comes with a terminal program called HyperTerminal. It can be found by going to the Windows start menu, Programs, Accessories, Communications.
Once started, choose the COM port that you have connected the cable to. Then select these options: 115200 baud, 8 data bits, no parity, 1 stop bit, hardware flow control.
Once connected, press ENTER. Monitor will respond with a prompt >. You may type VER to see the current software in the sensor.
Type UPG and ENTER to start the download. Monitor will respond by outputting 'C'. If using HyperTerminal, use the Transfer, Send File menu. Choose the .upg downloaded from this page file and choose Y-Modem.
Once the .upg transfer is complete, hit ENTER again. Type VER to see the new version of the software.
Download Monitor software version 1.09 built in January 2009.
1.9 (January 2009):
Hotfix for version 1.08 that could crash during a log download if long (120 bytes) equations were in use.
1.08 (January 2009):
Iridium telemetry added
RS232 Wakeup options added
Hardware flow control added
Modbus bug fixes and improvements
Command line machine mode improved
Sutron Standard CSV format added
Download Monitor software version 1.04 built in October 2008.
1.04 (October 2008):
RS232 behavior changed: changed to use DTR to wake up instead of RTS.
Added hardware handshaking over RS232
SDI-12 over command line bug fix
Factory burnin procedure bug fixes
Unit is more tolerant of high freqency input
1.02 (August 2008) was the first official software release.