Hello =
all,
I have an Everlert 6000 Seismograph originally used by =
Vibra-Tech Engineers. This was a portable seismograph unit with a =
printer in the top lid, originally used in the mining industry. It dates =
from the 1990’s. Using Google, I have seen references to the =
government using it in 1995. It appeared to be a replacement for the =
Everlert II which dated back to the 80’s. A picture and specs are =
shown at http://www.dtic.mil/cgi-bin/GetTRDoc?AD=3DADA3=
23466&Location=3DU2&doc=3DGetTRDoc.pdf pages 138 and =
139.
I have seen from the government docs, the printout =
would show very detailed information regarding an “event” =
that triggers it. It looks like it would display Geophone Vertical, =
Horizontal, and Traverse waveforms, also a low frequency microphone =
waveform output, as well as some highly detailed preliminary data. I am =
sure that the data could be loaded into a computer for any extra =
evaluations. It looks like the geophone had a resolution of .00488in/sec =
in all 3 axis. It looks like the data module may have built in full =
analog waveform, and Fourier Frequency Analysis according to the printer =
documentation. Frequency response is 2 – 250Hz Seismic and =
Sound
This unit has a very limited keyboard with an =
up/down/Last Menu/Enter button. There is a special button under a screw =
on the cover that is hidden. It looks like it was meant to only be =
pushed for some special case ( it is not a battery disconnect) It =
also has An RS-232 port, and a special printer port for the included =
(but optional) printer.
I have the =
main unit, Geophone, LF Microphone , Microphone stand (attaches to =
unit), printer in printer lid, standard non-printer lid, connecting =
cables, DC power cable, and a couple of EPROMs (they call them =
“Data Modules”). It has an exposed portion that houses the =
EPROM (“Data Module” in a “Zero Insertion =
Force” socket, and an accompanying LED which I would suspect would =
show access, but it never lights up.
When I put =
batteries in it and attempt to power it up, I get a reading on the LCD =
display stating “Download Program”. The system does nothing =
else, except displays a “Power Save – Press any button to =
continue” message after a short time.
It appears =
to be in good physical shape, but I do not know if I need to do =
something in a specific sequence, or if something is broken. I do have =
some spare circuit boards, but do not know if I would be adding to my =
issues since I do not know how to start this unit properly. I have had =
it since about 2005, but I never powered up because it took special =
batteries of which I recently was able to get.
The DC power =
/charging cord appears to do nothing. There is a light on the cover =
which I know should light up when DC power is applied, but nothing =
happens.
I have attempted to contact the company. They still =
make high end seismograph equipment, and they were nice about it. =
However they stated that they do not keep any data on any older =
seismographic instruments. They wish users to trade them in for (little) =
money off newer units.
I am =
desperately trying to find any information on this unit such as a =
operator manual ( and what would really be nice would be a Service =
manual). I would appreciate anyone with experience with this unit =
to let me
know anything they may wish =
to share or sell
If you need =
to , please contact me off-list at gchafee@......... (any attachments =
can be easily sent this way).
Thanks,
Jerry =
[ Top ]
[ Back ]
[ Home Page ]