Brochure

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WMZ intelligent kWh energy heat meter
with data connection.
Inputs: rotary pulse fl ow meter and two
Pt1000 supply and return temperature
sensors purchased separately.
Temp. measurement range: -20º—300ºF.
Adj. temp. sensor offset: ± 0.9ºF (0.5ºK).
Measuring precision: ± 0.5ºF (0.3ºK).
Volume concentration of glycol: 0—70%.
Pulse rate volumetric fl ow rate: 1—99 l/imp.
Interface: VBus.
Power supply: 24 V AC/DC
Code Description Pk Lbs USD
257202A Energy heat meter 1 2.0 595.00
The WMZ is a heat meter for solar thermal systems and conventional heating
(or cooling) systems. The WMZ calculates heat by integrating fl ow rate from
a rotary pulse fl ow meter and temperature difference in the supply and return
piping using two Pt1000 temperature sensors for convenient metering
of energy generated or consumed. The calculated heat energy value is
displayed in kWh (kilowatt hours) and stored. Memory protection guarantees
that the adjusted system settings and the calculated heat energy quantity
are maintained in the case of power loss.
Function
Code Description Pk Lbs USD
NA79701 ¼—10 gpm, ¾" sweat 1 3.0 650.00
Single jet rotary pulse fl ow meter measures
liquid fl ow for energy heat metering
production or consumption. Accurate to
International Standards OIML R75, EN1434
and MID.
Brass body.
Sweat connections incuded.
Working temperature range: -40º—210ºF.
Max. fl uid temperature: 265ºF
Max. working pressure: 235 psi.
Maximum glycol: 50%.
Multi-jet rotary pulse fl ow meter measures
liquid fl ow for energy heat metering
production or consumption. Accurate to
International Standards OIML R75, EN1434
and MID.
Brass body.
Sweat connections incuded.
Working temperature range: -40º—210ºF.
Max. fl uid temperature: 265ºF
Max. working pressure: 235 psi.
Maximum glycol: 50%.
Code Description Pk Lbs USD
NA79702 ½—15 gpm, 1" sweat 1 5 1,150.00
NA79703 ½—25 gpm, 1¼" sweat 1 8 1,350.00
NA79704 1—45 gpm, 1½" sweat 1 14 1,650.00
NA79705 1½—65 gpm, 2" sweat 1 17 2,380.00
Code Description Pk Lbs USD
257205 Black collector sensor 1 0.2 59.00
Code Description Pk Lbs USD
257206 Gray storage sensor 1 0.2 55.00
FKP6 collector Pt1000 sensor with 5’
black UV cable, Platinum RTD type,
1000 Ohm, -58—355ºF, ¼" Ø O.D.
FRP6 storage tank Pt1000 sensor with 8’
gray cable, Platinum RTD type, 1000 Ohm,
15—200ºF, ¼" Ø O.D.
Code Description Pk Lbs USD
257207 Black collector sensor 1 0.2 89.00
FKP9 collector screw mount Pt1000 sensor
with 5’ black cable, Platinum RTD type,
1000 Ohm, -58—355ºF, ¼" Ø O.D.
Code Description Pk Lbs USD
NA10090 Sensor well, ½" NPT male thread 1 0.5 34.65
NA15029 Sensor well, ¾" NPT male thread 1 0.5 53.00
257
WMZ
V40
V40
Sensor well, ¼" Ø I.D. fi ts Pt1000
temperature sensors 257205 and 257206
tech. broch. 01275 tech. broch. 01275
tech. broch. 01275
Additional WMZ energy meters can be cascaded together on the VBus
connection. One WMZ is confi gured as the master and additional WMZ
meters are confi gured as slaves. Up to 16 meters can be cascaded together
with two conductor wire (bell wire) at least 20 AWG and up to 150 feet for
transmission of data values to a connected PC or DL datalogger.
Multi node network