Sierra INNOVA-MASS 241-VTP - Manual (Page 53)

Chapter 3 Operation Series 24-HP Instruction Manual
3-14 IM-24-HP
Diagnostics Menu
Use the Diagnostics Menu to simulate operation and review the system files. The system log files
contain time/date stamped messages including: power on, power off, programming time outs,
parameter faults, incorrect password entry and other various information relative to system
operation and programming.
The simulated inputs are for testing the meter to verify that the programming is correct. Simulated
vortex frequency allows you to enter any value for the sensor input in Hz. The meter will
calculate a flow rate based on the corresponding value and update all analog outputs (the
totalizer display and output is not affected by a simulated frequency). The simulated pressure
and temperature settings work the same way. The meter will output these new values and will use
them to calculate a new density for mass flow measurement. Note: when your diagnostic work is
complete, make sure to return the values to zero to allow the electronics to use the actual
transducer values.
If the meter display indicates a temperature or pressure fault, a substitute value can be entered to
allow flow calculations to continue at a fixed value until the source of the fault is identified and
corrected.
Use only the units listed above for simulated values. If different units are
displayed, the value must be converted into the units listed above, and the displayed
value will be automatically converted into the display units.