Cropico has produced a family of precision digital
thermometers, the series 3000. Three units, all with 1 Millikelvin
resolution for RTDs, are offered with a range of standard
features and a list of "mix-and-match" options which will provide
a very high degree of flexibility.
The units can be used by Quality Assurance departments
throughout the process industries for calibrating temperature
probes, particularly in ISO-9000 applications, and they also have
wide-ranging use where high accuracy temperature measurement
is essential and where values have to be stored for data
Two-channel input provides A, B or A-B measurement on an LCD
display, and front panel keys are provided for the most commonly
used functions. Pull-down menus provide further functions, such
as the selection of thermocouples. Probe characteristics can be
stored for optimum accuracy, and the measuring current can be
reduced by half power to check the probe's self heating.
Other features include mains or rechargeable battery operation,
with built-in charger, and two interface options - RS232 and IEEE-
488 - by plug-in cards. An analogue output, via a BNC socket, is
The 3000 series include an inbuilt data logger which can store
upto 4000 date and time stamped readings. Recall the data from
the front panel or send to a PC via either RS232 or IEEE
both of which are options.
The 3000 series offer ease of use.
Password protected digital calibration and a
large clear backlit LCD graphics panel
ensure the 3000 series are easy for all levels
The 3000 series have the ability to take
reverse measurements switching the
polarity then computing the average to
eliminate the error source. This
reduces the thermal E.M.F. which
most resistance thermometers suffer
from. The thermal E.M.F error can
be greater than the quoted
accuracy of an instrument. If you
need small measurement uncertainy for
high temperature PRT work, you need this feature.
Guide To Temperature Measurement