Dwyer WNT Manual

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Series WNT Multi-Jet NSF Certied Brass Body Water Meter
W
L
®
Specications - Installation and Operating Instructions
SPUD
Bulletin F-WNT
H
Size in (mm)
5/8 x 1/2 (15) 5/8 x 3/4 (15) 3/4 (20) 1 (25) 1-1/2 (40) 2 (50)
The SERIES WNT NSF Certied Multi-Jet Water Meters is a series of mechanical, water totalizing meters that display the total water usage in gallons or cubic meters. They are available in a range of body sizes and include NPT or BSPT couplings. Its lead free, NSF certied body is ideal for potable water applications.
• NSF/ANSI 61 approval makes it ideal for no lead requirements
• Multi-jet design allows for simplicity and accuracy with side ow ranges, even in low ow applications
• Magnetically driven, hermetically sealed register does not leak or fog and is completely separated from the water
• Designed for long service life and maintenance-free operation
• Integral strainer that protects meter from particulate damage
• Easy installation with included coupling adapters
• Pulsed output proportional to ow allows for remote ow totalization
APPLICATIONS
• Potable water applications
• Residential water measurement
• Remote water monitoring
MODEL CHART
Model Size
WNT-A-C-01 WNT-A-C-02 WNT-A-C-05 WNT-A-C-06 WNT-A-C-07-1 WNT-A-C-08-1
5/8˝ x 1/2˝ 5/8˝ x 3/4˝ 3/4˝ x 1˝ 1˝ 1-1/2˝ 2˝
Coupling Size
1/2˝ NPT 3/4˝ NPT 1˝ NPT 1˝ NPT 1-1/2˝ NPT 2˝ NPT
GPM (Gallons Per Minute) Max Flow
20 20 30 50 100 160
Nominal Flow Range
1 to 20 1 to 20 2 to 30 3 to 50 5 to 100 8 to 160
Transitional Flow
0.25
0.25
0.5
0.75
1.25 2
Display Max (Gallons)
9,999,999.99 9,999,999.99 9,999,999.99 9,999,999.99 9,999,999.9 9,999,999.9
Spud NPSM (BSPP)
3/4  (3/4˝) 1  (1˝) 1  (1˝) 1-1/4  (1-1/4˝) 2˝ (2˝) 2-1/2˝ (2-1/2˝)
SPECIFICATIONS
Service: Water.
Wetted Materials: Body: ECO-BRASS chamber: ABS Plastic.
Flow Range: See model chart. Accuracy: Transitional Flow: ±3%; Nominal Flow: ±1.5%. Temperature Limit: 122°F (50° C).Pressure Limit: 150 psi (10 bar). Pressure Drop: See service manual. Totalizing Display Maximum: See model chart. Output Signal: Pulse output with frequency proportional to ow rate. Pulse Options: 0.1 gal, 1 gal, 10 gal, 100 gal per pulse. Electrical Rating: 0.01 A @ 24 VAC/DC. Electrical Connections: Color-coded lead wires, 4.5´ (1.5 m) long. Mounting Orientation: Horizontal with register facing up. Weight: See dimension chart. Agency Approvals: NSF.
Pulse Rate (Gal/Pulse)
0.1
0.1
0.1
0.1 1 1
Length ‘L’ in (mm)
7-31/64(190) 7-31/64(190) 10-1/4 (260) 10-1/4(260) 11-13/16 (300) 11-13/16 (300)
Width ‘W’ in (mm)
3-45/64 (94) 3-45/64 (94) 3-55/64 (98) 3-55/64 (98) 4-51/64 (122) 5-45/64 (145)
®
; Couplings: ECO-BRASS®; Measuring
Height ‘H’ in (mm)
4-15/64 (107.5) 4-15/64 (107.5) 4-5/8 (117.5) 4-5/8 (117.5) 4-5/8 (117.5) 5-9/16 (141.5)
Weight lb (kg)
3.58 (1.63)
3.81 (1.73)
6.02 (2.73)
6.02 (2.73)
12.02 (5.45)
13.23 (6)
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
Phone: 219/879-8000
Fax: 219/872-9057
www.dwyer-inst.com
e-mail: info@dwyermail.com
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Meter Reading
15
WATER PRESSURE (psi)
FLOW (GPM)
132
%
ERROR (%)
FLOW (m3/h)
W
Black - Common
The total ow 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 dials. In the example below, the Five-Digit Totalizer reads 13800 (138 x 100), and the dials read 60 (6 x 10), 2 (2 x1), and 0.4 (4 x 0.1) respectively. The total ow is 13862.4.
Installation
Pressure Drop
12
9
6
3
Accuracy Chart
0
13 22 31 44 81
2
±5%
-2
-5
±2%
Electrical Installation
Dry contact closure, does not require power
FLO
MAINTENANCE/REPAIR
Upon nal installation of the Series WNT, no routine maintenance is required. The Series WNT is not eld serviceable and is not possible to repair the unit. Field repair should not be attempted and may void warranty.
WARRANTY/RETURN
Refer to “Terms and Conditions of Sale” 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.
Red - N O
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
ECO BRASS® is a registered trademark patent by Mitsubishi Shindoh
Printed in U.S.A. 6/18 FR# 444402-00©Copyright 2018 Dwyer Instruments, Inc.
Fax: 219/872-9057
Phone: 219/879-8000
www.dwyer-inst.com
e-mail: info@dwyermail.com
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