Sierra InnovaMass 240i Series, Instruction Manual, Page: 51 / 115

51
Possible Cause of Error Code
1. The pressure calibration is incorrect/ corrupted.
Solution:

Contact Sierra for remote troubleshooting.

If this is not immediately possible, pressure may be simulated in the Fluid
Properties sub-menu.
2. The sensor has failed.
Solution:

Check the Low/High sub-menu (see Table 8) to see if the meter’s pressure limits
have been exceeded.

The meter may need to be returned to the factory . If this is not immediately
possible, pressure may be simulated in the simulate submenu.
3. Remote wiring is incorrect
Solution:

Check that remote wiring is as shown in Figure 19.
Pressure XDCR Overrange
Since mass flow is determined by calculating density from Temperatur e and Pressure this may
cause errors in the flow readings as well.
240i/241i VTP meters have one transducer for measuring process pressure.
Pressure Ranges:
MP0: No pressure input (incompressible liquids)
MP1: 30 psia
MP2: 100 psia
MP3: 300 psia
MP4: 500 psia
Possible Cause of Error Code
1.
Process pressure exceeded pressure sensor limits.
Solution:

Adjust process conditions to remain within pressure sensor range.

Remove meter from process until pressure is within sensor range.
2. The pressure calibration is incorrect/ corrupted.
Solution:

Verify wiring, especially if unit is remote. See Figure 19.

Contact Sierra for remote troubleshooting.

If this is not immediately possible, pressure may be simulated in the Fluid
Properties sub-menu.