Miscellaneous; Reset Of The Pc-Logger 2100; Controller Program; 50/60Hz Adaption - Intab PC-Logger 2100 User Manual

6

MISCELLANEOUS

6.1

Reset of the PC-logger 2100

The PC-logger model 2100 can be reset by temporarily shorting sockets 7 and 8
of the 15 pole D-sub connector.
Resetting the logger will result in it loosing its internal controller program, all
measurement parameters and all measurement data it may have stored.
Its internal controller program must then be re-booted and new parameters
supplied before recordings can be started again. See also next section.
There should never really be any need to reset the "2100" at all.
Only very heavy electrical and RF interference may make it loose track of its
internal controller program and necessitate a reset and subsequent re-boot.
If you think it needs a reset because measurements are "off", it is more than
likely that you yourself have made a mistake in connecting signals. Check
connections instead!
6.2

Controller Program

The internal controller program of the "2100" is stored in RAM (Random
Access Memory). This makes it possible to reload (boot) it if it lost due to a
reset. It is also very simple to up-date or up-grade the "2100" with new or
customised controller programs by simply downloading them by booting from
the software. Booting is done by having the "2100" connected to the correct
serial port of your computer. Please see the software manual on how to BOOT.
6.3

50/60Hz Adaption

The PC-logger family all (except "f" models) have some sort of integrating A/D
converters. As you know, the time integral of a sine wave that is symmetrical to
zero has the exact value of zero if integrated for exactly one period.
In practise this means that all interference from mains is effectively filtered from
the measured signal.
The default setting is for 50Hz mains environment. For countries with 60Hz
mains, like the US, the unit has to have its integration time changed from 20ms
to 16.667ms.
This is easily achieved by, in the software, entering the EasyTerm "terminal
emulator", (see software manual) and then typing the command
HERZ:60[Enter].
(Don't forget to connect the logger to the computer first.)
If you aren't sure what setting you have, you may ask: HERZ:?[Enter].
Go back to Europe and revert to 50Hz setting by: HERZ:50[Enter]
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INTAB Interface-Teknik AB, Sweden