Gas Flow Meters
Gas flow meters are devices used to measure the flow of gas.
By default, there is only one object class for the Gas flow meter function in the database. That is the Gas counter class.
The Gas counter class has a position type of 1.
Image of a gas counter:
Gas counters measure the volume of gas. The readout of a gas counter is done by gas counter modules (for more information on the measurement: see gas counter modules).
Each gas counter type needs its own object type in the data base.
As example the settings for the default object type for gas counters "Gas counter default" is given below. The attribute values specific to this object type are:
| Attribute name | Value | Meaning |
|---|---|---|
| OT_INTERNAL_TCMOP | 0 | The counter provides internal temperature compensation (0: no; 1: yes) |
| OT_TEMP_NORM | 288.15 | Reference temperature for the internal temperature compensation (in K) |
| OT_INTERNAL_PCOMP | 0 | The counter provides internal pressure compensation (0: no; 1: yes) |
| OT_PRESS_NORM | 1013 | Reference pressure for the internal temperature compensation (in mbar) |
| OT_STEP | 1 | Step size for one single impulse sent to the cos counter module (in m³) |