Operation
Page 8
April 2017
VAM-UM-00646-EN-04
OPERATION
See
“Application Information” on page 12
for application information and fluid charts
Microswitch Adjustment
1 Remove cover screws and front cover
OTE:
N
On flow meters equipped with dual microswitches, the side closest to the connector is the
decreasing
flow switch and the side opposite the connector is the
increasing
flow switch
OTE:
N
See
“Microswitch Cable Specifications” on page 6
for cable lengths and specifications
2 Loosen the screws securing the switching roller and latching rollers to the guide bar
Turn each screw a maximum of one full turn
Latching Roller
Spacer Strip
Switching Roller
Latching Roller
Pointer
Guide Bar
Screws
Figure 5: Microswitch adjustment
3 All rollers are secured as a set to the spacer strip Slide the entire roller set until the
pointer is at the desired setting
OTE:
N
The spacer strip controls the maximum distance between rollers This distance may be
shortened when the switch setting is close to the end of the flow scale Latching rollers may
also be removed if the switch setting is close to the end of the flow scale
4 Make sure the roller brackets are flush against the guide bar Tighten the roller screws
5 For dual switch models, repeat steps 1…4 for the
increasing
switch setting
6 Install the cover gasket and front cover and secure with screws To properly seat the
cover gasket, tighten cover screws in a crisscross pattern (see
Figure 6: Cover screw tightening sequence
