Dear Paul,

We usually see between 60-65V going to the furnaces while they are heating
if the input voltage to the EA is in the 215-225V range.

This can be measured by connecting your meter to the terminal block where
the candle heater wires are connected. Be very careful, as there will be
220V at several points where you could make contact.

Also, the resistance of the furnaces should be about 8.4 Ohms at room
temperature.

Regards,
Bruno

Bruno Lavettre
Costech Analytical Technologies, Inc.
26074 Ave. Hall, Suite 14
Valencia, CA 91355

Phone: 661-297-2395
Fax: 661-297-5492



-----Original Message-----
From: Stable Isotope Geochemistry [mailto:[log in to unmask]] On Behalf
Of D.P.Kennedy
Sent: Monday, July 21, 2003 3:54 AM
To: [log in to unmask]
Subject: Carlo Erba NA1500 power supply

Dear List members,

Could someone let me know what the on load voltage heater supply to the
oxidation (combustion) furnace (left furnace) for the carlo erba NA1500
nitrogen analyser is please.  I believe its 50v ac but would like
confirmation of this.  The Carlo Erba is of the older type where both
furnaces are combined in one metal box (series I?)

Many thanks in advance

Paul
--
Paul Kennedy
Stable Isotope Laboratory
School of Ocean Sciences
University of Wales, Bangor
Askew Street
Menai Bridge
Anglesey
United Kingdom LL59 5AB

Tel + (0)1248 388116
email [log in to unmask]

http://www.sos.bangor.ac.uk/research/stable_isotope/index.htm