----- Analyzer of power supply quality CAVA-251 / CAVA-252 / CAVA-253 ------- Page No. 12
7.- OPERATION MODE
Before connecting the analyzer to a single-phase power system in order to
record data or to transfer data to a P.C. check the “Hold/Run” switch to be at the right
position.
The position of this switch is only considered when powering up the
analyzer.
No later modification of the switch position will be effective once the
analyzer is already running.
It is advisable to observe the “Hold / Run” led to check that the analyzer is at
the right operation mode according to our requirements (See section 6.2.-)
The position of this switch is only considered when powering
up the analyzer.
7.1.- Communications
Setup procedure and data retrieval can only be performed through the RS-232
serial port in the CAVA; therefore, the configuration of the serial port of the PC and
the CAVA must entirely coincide.
The default configuration of the CAVA serial port is:
Peripheral : 00
Communication parameters: 9.600 / 7 / N / 1
The CAVA only permits to modify the baud rate. Available baud rates are: 2400,
4800, 9600 & 19200 bauds
When setting the data management software for the CAVA in the PC, the serial
port used to communicate to the CAVA (Com 1, Com 2) must be correctly defined.
The software will automatically check at different baud rates whether a CAVA is
connected to the set port.
