A velocity flow meter which uses the principle of thermal conductivity to measure volume flow rate.

thermal flow transmitter

tag class

Specify the gas group classification of the physical object in accordance with IEC/EN 60079-20

Specify the temperature classification of the physical object in accordance with CENELEC EN50014

Specify the hazardous zone in which the functional or physical object is expected to operate.

A relative level of risk-reduction provided by a safety function, or to specify a target level of risk reduction

Property	Data Type	Max Length	Required	Picklist
explosion protection gas group Text Required Max Length: 40 Picklist: explosion protection gas group	Text	40	Required	explosion protection gas group
explosion protection temperature class Text Required Max Length: 40 Picklist: explosion protection temperature class	Text	40	Required	explosion protection temperature class
explosion protection zone Text Required Max Length: 40 Picklist: zone	Text	40	Required	zone
safety integrity level Text Required Picklist: safety integrity level	Text		Required	safety integrity level