telegraf/plugins/processors/scale/sample.conf

# Scale values with a predefined range to a different output range.
[[processors.scale]]
    ## It is possible to define multiple different scaling that can be applied
    ## do different sets of fields. Each scaling expects the following
    ## arguments:
    ##   - input_minimum: Minimum expected input value
    ##   - input_maximum: Maximum expected input value
    ##   - output_minimum: Minimum desired output value
    ##   - output_maximum: Maximum desired output value
    ## alternatively you can specify a scaling with factor and offset
    ##   - factor: factor to scale the input value with
    ##   - offset: additive offset for value after scaling
    ##   - fields: a list of field names (or filters) to apply this scaling to

    ## Example: Scaling with minimum and maximum values
    # [processors.scale.scaling]
    #    input_minimum = 0
    #    input_maximum = 1
    #    output_minimum = 0
    #    output_maximum = 100
    #    fields = ["temperature1", "temperature2"]

    ## Example: Scaling with factor and offset
    # [processors.scale.scaling]
    #    factor = 10.0
    #    offset = -5.0
    #    fields = ["voltage*"]