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9340-4T Series
Precision 4-Wire Terminal (4T) Ultra-Low Value RTD
Simulator and Decade Resistance Standards
Excellent As a Low Resistance Measurement Source and the Ultimate Standard for
RTD Simulation


GUILDLINE INSTRUMENTS 9340-4T SERIES of precision
RTD Simulators and DC Resistance Standards are a
complete family of easy to use low to ultra-low 4 Wire
resistance standards offering the best combination of
highest accuracy and widest range commercially
available.

The 9340-4T is a Four Terminal Series of Precision
Decade Standards that combines techniques
established at Guildline for the construction and
stabilization of low value resistance standards,
combined with low ohmic value switching
techniques. Guildline is the world leader in low value
resistance measurements and this expertise is built
9340-4T SERIES FEATURES into this new 9340-4T product. Decade step values
below 1 are arranged in a Kelvin Varley
Resistance Ranges include Decades configuration.
from 1 to 10 k!
True RTD Simulation with High Decade
Resolution!
The 9340-4T Series Are the Most Versatile and
Excellent for milli-Ohm and micro-Ohm
Accurate Decade Resistance Standard
Applications and Instruments! Available From Anyone Today
True 4-Wire Terminal Design!
This amazing new 9340-4T Series is available in
Accuracy Better than 0.01%!
models from 3 dials to 7 dials and with an industry
Temperature Coefficient Less than 5 leading ultra-low end 1 Step. This unique 9340-
ppm/C! 4T Series provides resolution and accuracies never
Switch and Wiring Resistance Effects of before provided in a decade standard.
the Four Terminal Arrangement are
Less than 10 !
And unlike typical RTD simulators, you have much
Direct Reading of Resistance Value at
better resolution. If you want to go down to 1
the 4 terminals!
you can! This makes these four terminals devices also
Long Life Rotary Switches with Solid
an excellent solution for milli-Ohm and micro-Ohm
Silver Contacts!
meter calibration.
An Overlap `10' Position for Fine-
Tuning!
The 9340-4T Series provides a modern compact
No Other Decade Standard on the design of high quality construction and high
Market Today with this Ohmic Range! reliability for a resistance decade standard.
9340-4T Series of Precision Resistance Standards

Each dial has an overlap `10' position for fine-tuning a value without the need to reset all dials when passing through
a decade point. The panel is clearly marked adjacent to each dial with the resistance per step and the current rating
of that dial. The current terminals are labeled as
C1 and C2 and the potential terminals are labeled
as P1 and P2; with all terminals placed on the top
panel. A terminal is also provided on the top
panel to allow connection of a ground or guard
to the metallic enclosure.

Accuracy of the 9340-4T RTD and Decade
Resistance Standards are better than