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Frequently asked questions

What does stating the burden data signify regarding amplifiers?

The burden specifies the degree to which the isolation amplifier may be loaded at the output without the measured value being falsified.

If there is one current output, the amplifier must provide output voltage, which - depending on the switched-on load - can make the current (measured value) flow. The maximum burden is calculated according to Ohm's law from the maximum output voltage at the current 20 mA output.
Example: the guaranteed maximum output voltage = 12 V is equivalent to a 600-Ohm burden.

With the voltage output it is exactly the same, only the output must be capable of delivering an appropriately high current so that the voltage (measured value) on the load can drop.
Example: guaranteed maximum output current = 20 mA, this means a permissible load of 2 kOhm.

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