B-
1
Appendix B: Installing/Replacing Pulse Encoder Kit
1. Remove the four cover bolts of the Display Head and lift off the cover. Put the cover and bolts aside.
Locate the V-R Installation Bracket With Encoder kit (P/N 846000-015). Refer to Figure B-1 to locate the
pulse encoder, retaining nut and washer and mounting bracket in the EMR4.
Veeder-Root recommends that the EMR4 Meter Register is driven in the counter-clockwise
(CCW) rotation. When looking down at the top of the flow meter vertical drive shaft it
should be turning CCW (see below).
2.
Using the four 6-32 x 0.25, T15 screws, attach the encoder bracket to the Display Head base as shown in
Figure B-1. Attach the pulse encoder to the bracket using the retaining nut and washer as shown.
Figure B-1. Attach Encoder Mounting Bracket to Display Head Base
3.
Locate the Encoder Spring and Input Shaft from the kit. With the encoder spring in your left hand and the
input shaft in your right, orient the input shaft as shown in Figure B-2, then rotate the input shaft in a counter-
clockwise direction as you ‘screw’ it into the spring until the flange on the input shaft is about 1/8” from the
end of the spring.
Figure C-2. Screwing Input Shaft CCW Into Encoder Spring
NOTICE
Top of flow meter
’s
vertic
a
l drive
s
h
a
ft
Rot
a
tion
P
u
l
s
e encoder
ret
a
ining w
as
her
a
nd n
u
t
P
u
l
s
e
encoder
P
u
l
s
e encoder
mo
u
nting
b
r
a
cket
T-15
s
crew
s
(4)
Input Shaft
Spring
1/8”
NOTE: The Input Shaft’s
appearance may vary
depending on the flow
meter type.
NOTE: The flow meter’s
drive shaft end view may
vary depending on the flow
meter type.
