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Model 6622T Series
DCC Thermometry Bridges
Accurate WIDE RANGE DCC Thermometry Bridges
GUILDLINE INSTRUMENTS MODEL 6622T THERMOMETRY
Bridge Series expands upon the success of 6622A Series
Resistance Bridges by utilizing engineering ingenuity to
offer leading uncertainties and stabilities for Temperature
Bridges. This design introduces unique innovations in
hardware and software for a wide range Thermometry
Bridge Series accommodating SPRT's, PRT's, various
RTD's, and thermistors. The measurement range of the
6622T Series is from 0.1 to 100 k.
There are two models in the 6622T Thermometry Bridge
Series providing increasing levels of accurary and are well
suited for temperature calibration and research. The use
of a DCC bridge in thermometry is beneficial as it has
inherently better noise immunity to external
6622T SERIES FEATURES electromagnetic noise and mechanical disturbance.
Accuracy to 0.025 mK (i.e. best uncertainty One of the key features of Guildline's Thermometry bridges
at 0.1 ppm) is that they are verified at the lower currents found in
thermometry.
Extended Performance (XP) Model
Provides Best Accuracy at 0.013 mK (i.e.
best uncertainty at 0.05 ppm) The 6622T Provides the Widest Range of
Temperature Measurement of Any Commercially
Wide Range From 0.1 ~ 100 k,
Supporting a Wide Variety of SPRT's, PRT's,
Available Temperature Bridge Today!
RTD's Including Ruthenium Oxide RTD's
Used In Cryogenic Applications 6622T Series Measurements are conducted in true four-
terminal mode so long test leads can be used. Since
Built in Temperature Conversion for ITS-90 excitation current is DC, reactance introduced by the probe
and IPTS-68 and probe leads does not affect measurement accuracy.
Thermal EMF is eliminated by periodic polarity reversal
Optimized for Operation at Low Power
Levels and Higher Speeds that is programmable by the user.
Optional Thermometry Adaptor with The built-in, extremely stable current supply permits
Programmable Pre-Heat and Full selection of output currents between 20
