TSI Instruments FHC50 - Page 51

Technical Section 43
CALIBRATE FLOW SUBMENU
6PT VENTURI VALVE ONLY
MENU ITEM
SOFTWARE
NAME
ITEM DESCRIPTION
ITEM RANGE
DEFAULT
VALUE
VENTURI VALVE
POSITION 4 FLOW
FHC50 Only
VENTURI PT4
The VENTURI PT4 item is used to calibrate a venturi valve
without feedback. When this item is entered, the display will
indicate a volumetric flow rate. Adjust the displayed value to
match the flow through the venturi valve when the venturi
valve is at the 60% OPEN position.
NOTE: The flow information can be obtained through a
direct flow measurement (i.e. duct traverse) after
using the CONTROL OUT item to set the damper
to 60% Open or from the label on the TSI Venturi
Valve.
The VENTURI PT4 menu item must be completed before
moving on to the VENTURI PT5 menu item.
0 to 10000 cfm
0 cfm
VENTURI VALVE
POSITION 5 FLOW
FHC50 Only
VENTURI PT5
The VENTURI PT5 item is used to calibrate a venturi valve
without feedback. When this item is entered, the display will
indicate a volumetric flow rate. Adjust the displayed value to
match the flow through the venturi valve when the venturi
valve is at the 80% OPEN position.
NOTE: The flow information can be obtained through a
direct flow measurement (i.e. duct traverse) after
using the CONTROL OUT item to set the damper
to 80% Open or from the label on the TSI Venturi
Valve.
The VENTURI PT5 menu item must be completed before
moving on to the VENTURI PT6 menu item.
0 to 10000 cfm
0 cfm