Teds - HBM SomatXR MX Series User Manual

2 Setting Up a System
30
When using the adjustable transducer excitation, electrical isolation from the supply
voltage of the amplifier is not required.
The maximum permissible power consumption is 700 mW per channel and 2 W total.
If the power consumption is more than 700 mW on one channel, the transducer
excitation of this channel switches off. If the power consumption exceeds a total of 2
W, the device may switch off.
CAUTION
Check the correct voltage setting when connecting a sensor. Too high a voltage
can destroy the sensor. The voltage value is a part of the MX module
parameterization and can only be changed with a new parameterization. The
sensor supply is switched off in the delivery condition.

2.7.1 TEDS

TEDS (Transducer Electronic Data Sheet) refers to the electronic data sheet of a
transducer or sensor that is stored in a small electronic chip or appropriate module
which is permanently connected to the device in the transducer housing, the
inseparable cable or the connector plug.
TEDS allows automatic parameterization of a channel immediately after a sensor
has been connected. Every measurement channel allows reading or writing of
sensor data to the TEDS chip. The sensor database is used to describe a sensor. If
a TEDS sensor is connected, this information is written. In addition, valuable meta‐
data such as calibration data are delivered providing important information for the
traceability of measurements or tests.
NOTE
The function and working method of TEDS are defined in Standard IEEE1451.4.
Transducer information stored in the TEDS data memory:
The physical unit of the measured quantity (e.g. N for force) and its measuring
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range
The unit of the electrical output signal (e.g. mV/V for bridge transducers)
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The linear characteristics as the relation between the measured quantity and the
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electrical signal
If applicable, the requisite excitation and electrical power supply of the transducer
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Additional information that could be read out using relevant software:
Transducer manufacturer, type, serial number, etc.
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Calibration date, recalibration interval, calibrator's initials, etc.
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A4089-5.0 en HBM:Public. MX Modules