The
RESISTOMAT ® type
2329 is particularly suitable for
quick measurements of low
resistances in automated
processes. Up to 50 measurements
per second can easily be
performed.
The device complies with the
latest CE guidelines and is
designed for laboratory use as
well as heavy-duty industrial
applications.
A 2-fold and 4-fold comparator
with switching outputs has been
included for classification and
selection; this feature is
particularly useful for serial
experiments.
One special application involves
the measurement of contact
resistances (dry-circuit
measurement); the load voltage in
this case is limited to 20 mV in
order to prevent fritting
(DIN-IEC 512).
The RS232- (standard) and
IEEE488- (optional) computer
interfaces allow fully automatic
testing stations to be set up.
The PLC-interface allows easy
integration into your production
process control.
Typical applications are
resistance and conductivity
measure-ments of:
|
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Fuses |
|
Airbag
triggers |
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Coils for
the automobile industry and
electrical engineering |
|
Plug-in
contacts and switches |
|
Commutator
welded-joints |
|
Meter
samples in cable manufacture |
|
Circuit-board
conductors |
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| Description |
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The device operates
on the basis of proven 4-wire technology
which corrects any incoming line or
contact resistances. The measurement
lines are checked by an integrated cable
rupture monitor.
Needless to say, the functions include
temperature compensation for various test
substances such as copper, brass,
tungsten etc. Temperatures are measured
by a Pt 100 sensor or infrared sensor
(pyrometer) with analog outputs or any
temperature transmitter e.g.
thermocouple.
For measuring test objects with low
inductances, a special measurement input
protection was developed to prevent
voltage peaks from damaging the device
when test objects are disconnected.
If objects need to be tested for several
different parameters by an automatic
measurement system, you can store up to
32 device settings such as measurement
ranges, limiting values, temperature
coefficients etc. These settings are
called up via a bit pattern (5 bits).
Naturally, all device settings can also
be made via the RS232 (standard) or
IEEE488 (optional) interface.
The integrated datalogger can be used
during serial measurements to store up to
20.000 measurement values which can be
divided into 32 individual blocks. A
digital filter is available for
preselecting the measurement values to be
stored. The evaluation menu of the
stochastic data logger displays the
maximum, minimum and average values as
well as the standard deviation.
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