Changing System Units: T-mass 65 and Promass 80 Operation Guide
In industrial measurement, it may be necessary to change the transmitter's system units according to process requirements or industry conventions. This article uses T-mass 65 and Promass 80 as examples to explain in detail how to change system units. Before operation, please ensure that the relevant safety instructions have been read.
Preparation
- Confirm that the transmitter is powered on and in normal measurement mode.
- Prepare the operation manual or record the current parameter settings.
- Ensure that you have the corresponding access permissions (such as a password if required).
Operation Steps
The following steps apply to T-mass 65 and Promass 80. The specific menus may differ slightly depending on the firmware version.
- Enter the main menu: Press the E key to enter the function matrix.
- Select the "System Units" or "Units" menu item.
- Use the + or - keys to select the type of unit to change (such as mass flow, volume flow, temperature, etc.).
- Press the E key to enter and select the target unit.
- Press the E key to confirm, then press Esc to exit and save.
After the change is complete, return to the measurement interface to check whether the displayed value has been updated.
Comparison of Unit Options
The unit types supported by the two transmitters are basically the same. Common options are as follows:
| Measurement Type | Available Units |
|---|---|
| Mass flow | kg/h, kg/min, kg/s, t/h, lb/min, etc. |
| Volume flow | m³/h, m³/min, l/h, l/min, US gal/min, etc. |
| Temperature | °C, °F, K |
| Density | kg/m³, g/cm³, lb/ft³, etc. |
Precautions
- After changing units, the units of all related parameters (such as upper limit, lower limit, and low flow cut off) will also change accordingly. Please check whether the set values need to be adjusted.
- If the transmitter has a trade settlement function, changing units may require recalibration or authorization.
- If password protection is encountered during operation, please refer to the manual and enter the correct password.
- It is recommended to record the original units before changing so that they can be restored if needed.
FAQ
- Q: The displayed value is abnormal after changing units?
A: Check whether all related parameters have been changed synchronously, or try restoring factory settings and reconfiguring. - Q: Cannot find the unit menu?
A: Confirm the transmitter model and firmware version. Some older versions may have different menu locations. - Q: Will changing units affect measurement accuracy?
A: No. Changing units only affects display and output, not the sensor measurement principle.
Through the above steps, you can easily complete the system unit change for T-mass 65 and Promass 80. If you have any questions, please consult the manufacturer's technical support.