2
2.3 RS-485 Interface (8002-1-3, 8002-1A-3)
The datalogger’s internal configuration is defined through communication with a computer using
the supplied RS-485 interface cable and LogView software. The datalogger may also be
configured and monitored using any standard terminal emulator software, such as Microsoft
Windows HyperTerminal
™
or Geokon’s Terminal Window Software. (See Section 4, “Command
List”, if using terminal emulator software to interface to the datalogger.)
When connected to a computer via the 8001-5 (RS-232) or 8002-5(USB) RS-485 interface, up to
256 LC-2 dataloggers may be networked (daisy chained) together over one RS-485
communications cable.
LC-2 model 8002-1-3 provides hardwired sensor connection by means of an internal terminal
block (see Table 1). LC-2 model 8002-1A-3 provides transducer connection by means of a 10-
pin connector. Refer to Section 3.1, “Sensor Installation” to connect the vibrating wire transducer
to the LC-2 datalogger.
All data, both readings and configuration, are stored in nonvolatile EEPROM with a typical
storage life of 10 years (minimum). The internal temperature compensated real-time clock, used
to provide timekeeping and triggering of readings, is accurate to plus or minus two minutes per
year.
The comma delineated ASCII output format allows for easy importing into popular spreadsheet
programs such as Lotus 1-2-3
or Microsoft Excel
. See Appendix D for sample data files.
For more information regarding setup and operation of the RS-485 LC-2 models, refer to
Appendix F, “Networking”.
2.4 Waterproof (8002-WP-1, 8002-WP-2)
Geokon’s Model LC-2WP is a waterproof version of the Single Channel LC-2 Datalogger. It is
housed in a rugged PVC enclosure, with a Swagelok cable fitting and 10-pin bulkhead
communications port.
The LC-2WP is available with internal configurations to communicate via RS-232 (8002-WP-1)
or USB (8002-WP-2).
For operating instructions for the LC-2WP, please see Appendix I.