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Unit codes – GF Signet 9900 H COMM Module User Manual

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9900 H COMM Module Instruction Sheet

The H COMM module uses standard HART Foundation Protocol 7.2 unit codes. The unit code allows the HART
Master to interpret and display the units of measure (e.g., GPM, PPB, °F, etc.) with two exceptions.

The following Unit Codes will not be interpreted by the HART Master:

Code

Measurement Unit

240

Cubic Centimeters

244

Parts per Thousand

Unit Codes

A HART Master will display these unit codes instead of the units of measure that the
code represents.