Omega WMH User guide

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SERIES WMH | MULTI-JETHOTWATERMETER

FEATURES/BENEFITS

• High temperature threshold of 190°F (88°C) ideal for high temperature

applications

•Multi-jetdesignallowsforsimplicityandaccuracywithwide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

• HVAC applications

•Measuringtotalcondenserwaterowinresidential,commercialandindustrialapplications

•Remotehotwatermonitoring

DESCRIPTION

TheSERIES WMH High TemperatureMulti-Jet Water Meters are a series ofmechanical, watertotalizingmetersthatdisplaythetotal water usage in Gallons with m3 options.They areavailableinarangeofbodysizesandincludeNPTorBSPToptionalcouplings.Thehigh temperatureresistantbrassbodyiscompatibleinapplicationswithhightemperaturewater.

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SPECIFICATIONS

Service Water.

Wetted Materials Body:Brass;Couplings:Brass;MeasuringChamber:Brass

Flow Range Seemodelchart.

Accuracy WMH-A-X-XX:TransitionalFlow:±3%;NominalFlow:±1.5%.

Temperature Limit 190°F(88°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(1L,10L,100L,1000perpulse)Seemodelchart.*

Electrical Rating 0.01A@24VAC/DC.

Electrical Connections Color-codedleadwires,4.5(1.5m)long.

Mounting Orientation Horizontal

Weight Seedimensionchart.

MODEL CHART

Coupling Model Size WMH-A-C-01 WMH-A-C-02 WMH-A-C-03 WMH-A-C-04 WMH-A-C-05 WMH-A-C-06 WMH-A-C-01-1 WMH-A-C-02-1 WMH-A-C-03-1 WMH-A-C-04-1 WMH-A-C-05-1 WMH-A-C-06-1 WMH-A-C-07-1 WMH-A-C-08-1 WMH-A-C-01-10 WMH-A-C-02-10 WMH-A-C-03-10 WMH-A-C-04-10 WMH-A-C-05-10 WMH-A-C-06-10 WMH-A-C-07-10 WMH-A-C-08-10

5/8˝x1/2˝ 5/8˝x3/4˝ 3/4˝SL 3/4˝ 3/4x1˝ 1˝ 5/8˝x1/2˝ 5/8˝x3/4 3/4˝SL 3/4˝ 3/4x1˝ 1˝ 1-1/2˝ 2˝ 5/8x1/2˝ 5/8x3/4˝ 3/4˝SL 3/4˝ 3/4x1˝ 1˝ 1-1/2˝ 2˝

Size

1/2˝NPT

3/4˝NPT

1˝NPT

1/2˝NPT

3/4˝NPT

1˝NPT

1-1/2˝NPT

2˝NPT

1/2˝NPT

3/4˝NPT

1˝NPT

1-1/2˝NPT

2˝NPT

withregisterfacingup.

GPM (Gallons Per Minute)

Max

Nominal Flow

Flow

Range

1to20

2to30

3to50

1to20

2to30

3to50

100

5to100

160

8to160

1to20

2to30

3to50

100

5to100

160

8to160

Transitional Flow

0.25

0.5

0.75

0.25

0.5

0.75

1.5 2

0.25

0.5

0.75

1.5 2

DisplayMax

(Gallons)

9,999,999.99 9,999,999.99 9,999,999.99 9,999,999.99 9,999,999.99 9,999,999.99 9,999,999.99 9,999,999.99 9,999,999.99 9,999,999.99 9,999,999.99 9,999,999.99 9,999,999.9 9,999,999.9 9,999,999.99 9,999,999.99 9,999,999.99 9,999,999.99 9,999,999.99 9,999,999.99 9,999,999.9 9,999,999.9

Pulse Rate (Gal/Pulse)

0.1

0.1 1 1 1 1 1 1 1 1 10 10 10 10 10 10 10 10

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T: 219-879-8000 | F: 219-872-9057 | [email protected] 800-872-9141

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DIMENSIONS WIRING DIAGRAM

DIMENSION CHART

Size

in (mm)

5/8x1/2(15) 5/8x3/4 3/4(20) 1(25) 1-1/4(32) 1-1/2(40) 2(50)

Spud NPSM (BSPP)

3/4(3/4˝) 1(1˝) 1(1˝) 1-1/4(1-1/4˝) 1-1/2(1-1/2˝) 2(2˝) 2-1/2(2-1/2˝)

Length ‘L’ in (mm)

6-1/2(165) 7-1/2(190) 7-1/2(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) 3-45/64(94) 3-55/64(98) 3-55/64(98) 4-51/64(122) 5-45/64(145)

Height ‘H’ in (mm)

4-15/64(107.5) 4-15/64(107.5) 4-15/64(107.5) 4-5/8(117.5) 4-5/8(117.5) 5-9/16(141.5) 6-31/32(177)

Weight

lb(kg)

3.75(1.7)

3.97(1.8)

4.9(2.2)

6.4(2.9)

8.2(3.7)

13.52(6.17)

18.74(8.5)

HOW TO ORDER

Usetheboldcharactersfromthechartbelowtoconstructaproductcode.

MODEL

WMH -Multi-JetHotWatermeter

UNIT OF MEASUREMENT

-A -Gallons

-B-m

STANDARD WATER

WMH -A -C -XX -X

PULSE RATE

(BLANK) -0.1gal

output

-1 -1galoutput

-10 -10galoutput

-100 -100galoutput

SIZE

-01 -5/8˝x1/2˝

-02 -5/8˝x3/4˝

-03 -3/4˝SL

-04 -3/4˝

-05 -3/4˝x1˝

-06 -1˝

-07 -1-1/2˝

-08 -2˝

-09 -15mm

-10 -20mm

-11 -25mm

-12 -32mm

-13 -40mm

-14 -50mm

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DWYER INSTRUMENTS, INC.

T: 219-879-8000 | F: 219-872-9057 | [email protected] 800-872-9141

Page 4

NOTES

__________________________________________________________________________________________________________________________________________

ImportantNotice:DwyerInstruments,Inc.reservestherighttomakechangestoordiscontinueanyproductorserviceidentiedinthis publicationwithoutnotice.Dwyeradvisesitscustomerstoobtainthe latestversionoftherelevantinformationtoverify,beforeplacinganyorders,thattheinformationbeingrelieduponiscurrent.

DWYER INSTRUMENTS, INC.

T: 219-879-8000 | F: 219-872-9057 | [email protected]

dwyer-inst.com

800-872-9141

DS-WMH | 6/17