PL Engineering Z-Meter DX4091, User Manual, Page: 7 / 44

Z-Meter DX4091/ User Guide PL Engineering Ltd
ver. 1.02 (2022) page 7 of 44
1. INTRODUCTION
Z-Meter model DX4091 is
designed to measure
thermoelectric parameters
of single thermoelements
(pellets) made of
semiconductor materials.
This unique technique
allows measuring
thermoelectric Figure-of-
Merit, as well as electrical
resistance and specific
electrical conductivity of
working thermoelements, from which regular thermoelectric modules
to be made:
•
Thermoelement (Pellet) Resistance ( R )
•
Conductivity (
𝜎𝜎
)
•
Figure-of-Merit (
𝑍𝑍
)
•
Maximum Temperature Difference
1
( ∆𝑇𝑇
𝑚𝑚𝑚𝑚𝑚𝑚
)
This means that it is possible to preselect parameters, control the
properties of thermoelectric modules at the initial stage of their
production using measured performance of pellets to be used in the
production:

Figure-of-Merit of p-n pair of pellets determines the cooling
capacity of the modules to be manufactured.

The output resistance of the thermoelectric modules can be
calculated with high accuracy using the measured
conductivity and resistance of pellets.
Methodological recommendations for the use of the Z-Meter DX4091
1
Is calculating by using of value of Figure-of-Merit