how long does the system run before the battery is exhausted
do you have all the cables, cords, adapters, etc that you will need
does the software/system get flakey as the battery voltage declines
is there any variation in the instrument calibration as the battery voltage declines
is the data saved in real time or do you have to periodically save it by hand
These are the sort of thing you want to know prior to going out in the field. As I said, you might have already been planning to test this, but I figured that it wouldn't hurt to mention it again. If only because I and friends of mine have ended up five miles from nowhere only to find we were missing one data cable. Then there was the friend of mine who discovered that his instrument that was designed to run off DC would only accept 24 volt DC, which was not a lot of good when he was planning to plug it into the cigarette lighter on his car. And then there was the time... Oh well, you get the idea. The time to find out this sort of thing is before you take off.
Douglas Aalseth Shoreview, MN
On Thursday, August 7, 2003, at 11:04 AM, Mark Falzon wrote:
I need to run a PASCO SCSI interface on the computer. This device uses many
different probes (4 digital and 3 analog) so I can measure temperature, pH,
dissolved O2, etc. It is AC powered. I could use a 520c powerbook, but I
would still have to power the interface. I'm thinking the most efficient
way to do this would be to power the computer and interface through a full
wave DC to AC power inverter connected to a deep cycle marine battery. I
have been working on the SE-30 and now have 20 MB of RAM using system 7.1
(bought some 16 MB SIMMS but they would not work in the machine??). It will
also run the latest version of the PASCO Science Workshop software
(surprisingly). I have plenty of willing student to carry the equipment to
various ponds and streams in my area.
I have never used a set-up like this and am anxious for any helpful input.
Mark Falzon 48888
-- Compact Macs is sponsored by <http://lowendmac.com/>.
Support Low End Mac <http://lowendmac.com/lists/support.html>
Compact Macs list info: <http://lowendmac.com/lists/compact.shtml>
--> AOL users, remove "mailto:";
Send list messages to: <mailto:[EMAIL PROTECTED]>
To unsubscribe, email: <mailto:[EMAIL PROTECTED]>
For digest mode, email: <mailto:[EMAIL PROTECTED]>
Subscription questions: <mailto:[EMAIL PROTECTED]>
Archive:<http://www.mail-archive.com/ compact.macs%40mail.maclaunch.com/>
---------------------------------------------------------------The Think Different Storehttp://www.ThinkDifferentStore.com ---------------------------------------------------------------
-- Compact Macs is sponsored by <http://lowendmac.com/>.
Support Low End Mac <http://lowendmac.com/lists/support.html>
Compact Macs list info: <http://lowendmac.com/lists/compact.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/compact.macs%40mail.maclaunch.com/>
---------------------------------------------------------------
The Think Different Store
http://www.ThinkDifferentStore.com ---------------------------------------------------------------
