Install Instructions

Meter Reading
The total flow that has passed through your meter is read by starting at the top of
the register with the Five-Digit Totalizer, and then read clockwise around the small
d
ials. In the example below, the Five-Digit Totalizer reads 13800 (138 x 100), and
t
he dials read 60 (6 x10), 2 (2 x1), and 0.4 (4 x 0.1) respectively. The total flow is
1
3862.4.
INSTALLATION
Pressure Drop
Accuracy Chart
MAINTENANCE/REPAIR
Preventative maintenance consists of periodic inspections and cleaning
procedures. The procedures should be performed at regular intervals, and any
defects discovered should be corrected before further operation of the meter.
Visually inspect the meter for missing hardware, broken resistor glass, or other
signs of wear or deterioration. Verify proper flow rate and pressure for meter. A loss
in pressure, with the resulting flow rate decrease, may indicate the meter screen is
clogged and requires cleaning.
Clean the strainer yearly, or as required, depending on water condition. Pull out the
strainer or back flush the meter to loosen trapped particulates
The Series WM2 is not field serviceable and should be returned if repair is needed.
Field repair should not be attempted and may void warranty.
WARRANTY/RETURN
Refer to “Terms and Conditions of Sales” in our catalog and on our website. Contact
customer service to receive a Return Goods Authorization number before shipping
the product back for repair. Be sure to include a brief description of the problem plus
any additional application notes.
DWYER INSTRUMENTS, INC. Phone: [phone] www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Fax: [phone] e-mail: [e-mail]
©Copyright 2016 Dwyer Instruments, Inc. Printed in U.S.A. 9/16 FR# 444045-00 Rev. 4
Size
5/8˝
5
/8 x 3/4˝
3
/4˝
1
˝
1
-1/2˝
2˝
Coupling
Size
1/2˝ NPT
3
/4˝ NPT
3
/4˝ NPT
1
˝ NPT
1
-1/2˝ NPT
2˝ NPT
Nominal Flow Range
1 to 20
1
to 20
2
to 30
3
to 50
5
to 100
8 to 160
Max Flow
20
2
0
3
0
5
0
1
00
160
Model
WM2-A-C-01
W
M2-A-C-02
W
M2-A-C-03
W
M2-A-C-04
W
M2-A-C-06
WM2-A-C-07
S
ize
1
5 mm
20 mm
25 mm
32 mm
4
0 mm
5
0 mm
C
oupling
S
ize
1
/2˝ BSPT
3/4˝ BSPT
1˝ BSPT
1-1/4˝ BSPT
1
-1/2˝ BSPT
2
˝ BSPT
N
ominal Flow Range
0
.12 to 1.5
0.2 to 2.5
0.28 to 3.5
0.48 to 6
0
.8 to 10
1
.2 to 15
M
ax Flow
3
5
7
12
2
0
3
0
M
odel
W
M2-B-C-08
WM2-B-C-10
WM2-B-C-11
WM2-B-C-12
W
M2-B-C-13
W
M2-B-C-14
Transitional Flow
0.25
0
.25
0
.5
0
.75
1
.5
2
T
ransitional Flow
0
.03
0
.05
0.07
0.12
0.2
0
.3
GPM (Gallons Per Minute)
m
3
/h
Display Max
(
Gallons)
9
,999,999.99
9
,999,999.99
9
,999,999.99
9,999,999.99
99,999,999.9
99,999,999.9
D
isplay Max
(
m
3
)
9
9,999.9999
9
9,999.9999
99,999.9999
99,999.9999
999,999.9999
9
99,999.9999
(DN15)
(DN20)
(DN2
5)
(DN32)
(D
N40)
(DN50)