New Data Logger for remote monitoring up to 250 channels.
New from TML is the data logger used for
remote monitoring of up to 250 channels with appropriate
The TDS-300 has no internal operating unit, switching box or
printer, and communication to a computer is by an RS-232C
interface or modem. Unlike other units in the TDS family which
can be used as stand alone data loggers including memory
and printout, this instrument requires connection to a computer
for control and to download the data. This can be accomplished
on site with a laptop or via a modem link, and control software
is supplied as standard.
A scanning speed of 12 points per second can be achieved
with high accuracy and high stability, due to the built-in triple
integration A/D converter. Bridge excitation is a 2V DC 20mSec
pulse, which helps reduce heating effects, especially on low
heat conductive materials such as plastics.
With appropriate switch boxes such as TML's ASW series,
measurements can be taken from strain gauges, thermocouples
or from voltage output sensors, and these switch boxes can be
daisy chained to allow up to a maximum of 250 channels.
Applications for the TDS-300 data logger would include on site
measurements where either laptop control was appropriate,
or a modem link could be made to a remote computer. Thus
remote interrogation of sensors could be achieved.