Config input data (temperature converter)

Selecting ‹Input› tab in the Config modulemenu opens a window to allow configuration of the parameters of the temperature converter; this only appears if a password has been entered previously.

·         Input type.

·         Process units.

·         Linearisation.

·         Filter frequency.

·         Cold Junction Compensation (CJC).

·         Signal range (Point 4mA and Point 20mA).

When an RTD or mV input type is selected the Cold junction compensating and failure alarm (in the Output config. menu) are automatically disabled.  Selecting mV also disables selection of the Process units and automatically sets them to mV.  When an RTD input is selected the linearization is turned on unless the input type ‹resistor› or ‹ohms› is selected whereby linearization is off and units are automatically set to ohms.

The temperature converter has an input range of ±75mV (0 to 400Ω) and a span of 3 to 150mV (3 to 400Ω).

Note that the range of input types that can be configured varies between the different MTL temperature converters.  Refer to the product data sheets for information.

For the two-channel MTLx576-RTD and MTLx576-THC the data from channel1 or channel2 is selected through the window within the display screen.  On these variants also the “input-output configuration” and the user CJC values can be configured.