Commissioning
Deltabar PMD78B HART
54
Hauser
Prerequisites:
• Measured variable with square root extraction in relation to pressure
• In the
Output current transfer function
parameter, set the
Square
option.
Menu path: Application → Sensor → Sensor configuration → Output current transfer
function
• Enter the switch-on point for the low flow cut off in the
Low cutoff
parameter (default
5 %)
Menu path:Application → Sensor → Sensor configuration → Low cutoff
6%
5%
0%
0%
Q
Qmax
Q
Qmax
∆
∆
p
p
A0025191
• The hysteresis between the switch-on point and the switch-off point is always 1 % of the
maximum flow value
• If 0 % is entered for the switch-on point, low flow cut off is disabled
In the
Assign PV
parameter, the
Pressure
option must be selected (factory setting)
Menu path: Application → Sensor → Scaled variable → Assign PV
Alternative menu path: Application → HART output
The set unit is also output on the fieldbus.
9.7
"Simulation" submenu
With the
Simulation
submenu, the pressure, current and diagnostic events can be
simulated.
Menu path: Diagnostics → Simulation
9.8
Protecting settings from unauthorized access
9.8.1
Hardware locking or unlocking
on
of
f
Zero/
I
Span/
II
Display
1
A0043441
1
DIP switch for locking and unlocking the device
DIP switch 1 on the electronic insert is used to lock or unlock operation.
If operation is locked via the DIP switch, you can only unlock operation again via the DIP
switch.
