4
Range Selector
The Range Selector (A) allows you to switch to one of two velocity ranges
or a static pressure range by means of a switch plate (B).
A switch button (C) is provided for changing the Velometer from use with
a Pitot Probe to use with either a Diffuser Probe or a Static Pressure Probe.
When using the Pitot Probe, turn this button and allow it to spring out; when
using either the Diffuser Probe or a Static Pressure Probe, push the button in
and turn to lock it in position. In this position the switch button slot must be
vertical (aligned with arrows on label) for proper instrument operation.
Do not block switch button during operation.
WA R N I N G
!
C A U T I O N
The Range Selector is provided with a plug-in port (D) which accepts the
various probes and allows you to rotate them 360˚. (+) and (–) ports (E)
are provided for hose connections to the meter.
Depending on your model, your set will include one or two Range Selec-
tors that are identified by red or black lettering. This color coding relates
to the same colored scales on the meter.
Take-Up
Adjustment
Screw
A
Range Selector
B
Switch Plate
C
Switch Button
D
Plug-In Port
E
Port
Connections
F
