P29 Instruction Manual
18
7.2.3.2 Unit
You can use this menu item to select the mass flow unit. The following mass flow units can be
selected
kg/s
kg/min
kg/h
Flow rate
This menu item is used to adjust the flow rate display values.
The following sub-menu items are available:
Value
Unit
7.2.4.1 Value
This is used to set the flow rate value displayed at the maximum scaled pressure. 0 is always
used as the lower scale value on the flow rate display (root-extracted measured value). The
maximum pressure is the larger of the two scale values, which is used as a basic calculation.
7.2.4.2 Unit
Use this menu item to select the flow rate unit. The following flow rate units can be selected:
m/s
mph
f/s
f/min
km/h
7.3 Warning
INFORMATION:
For safety reasons, relay outputs are not possible with the P29. However, exceeding or falling
below the switching thresholds can be signalled visually and acoustically.
Use this menu item to set the warning values. The first menu item that appears here is Select
Warning Message (1 or 2). The settings for this warning message should then be changed.
Use the
“▲“ and “►“ keys to select the number of the warning and press Enter to move to that
warning's menu.
The following sub-menu items are available:
Value
Hysteresis
Tv
Tn
Warning signal
Filter
Value
This item adjusts the pressure value at which the particular warning should be activated. The
pressure range defined by the scale can be used as the setting range. Select the pressure unit
set for the display as the unit. If the volumetric flow, mass flow or flow rate (root-extracted
display) is displayed, select the Pa unit.
