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The precision Pt
100 simulator is used wherever measuring
instruments or controlling systems have
to be tested or calibrated with great
precision.
The standard design, type 4506,
simulates 24 set temperature values.
Totally different temperature ranges are
required in the case of special
applications, such as in the food
industry, the medical science etc. Type
4506 S is recommended for these
applications and can be fitted with 24
temperature values according to customer
specifications.
A distinctive feature of these
simulators is their easy operation. The
resistance values required for simulation
are directly set in °C. There is no need
to use loof-up tables. In cases a
certificate is being demanded more than
ever for measurements. It is available
under order code 45DKD.
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| Description |
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The unit houses a
high-quality switch with precision
wire-wound resistors made of ZERANIN®.
It is installed in a handy and rugged
metal casing (with DIN sockets). 24 set
temperature values are simulated using
the selector switch in accordance with
DIN EN 6075 standard values for
resistance thermometers (Pt 100). The
simulated resistance value, corresponding
in its value to the individually set
temperature, is picked up at the "R
Sim "output socket. The four-wire
connecting system permits the connection
of a separate current and voltage path.
Supply lead resistance is therefore
eliminated and does not appear in the
measurements.
The 24 temperatures are chosen to
provide several calibration points
suitable for most measuring instruments.
The resistors are subject to careful
artificial ageing before trimming. This
special process and trimming about half
the tolerance guarantee a long-term
stability of < 0.01 % for years. The
material used for the resistors, ZERANIN
® , has a temperature coefficient of
less than 2 ppm/K. Allowances for ambient
temperatures are therefore superfluous.
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