WattNode
®
Pulse Output kWh Transducer Connection Instructions
For use with HOBO
®
H21, H22, U30, UX90, UX120, and RX3000 series data loggers, and HOBO data nodes
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Onset Computer Corporation. Other products and brand names may be trademarks or registered trademarks of their respective owners.
10332-M MAN-WATTNODE
Applies to these WattNode Pulse Output kWh Transducers:
Onset Part No.
Configuration / VAC
Output
Maximum Pulse Output
WattNode Part No.
T-WNB-3Y-208
Single-phase 120 or
Wye 208-240
Pulses representing kWh
4 Hz
WNB-3Y-208-P
T-WNB-3Y-208-P
Single-phase 120 or
Wye 208-240
Pulses representing kWh
4 Hz
WNB-3Y-208-P
option P3
T-WNB-3D-240
Delta 208-240
Pulses representing kWh
4 Hz
WNB-3D-240-P
T-WNB-3D-480
Delta (or Wye) 480
Pulses representing kWh
4 Hz
WNB-3D-480-P
DANGER!
—HIGH VOLTAGE HAZARD
Installing transducers in an energized electrical enclosure or on any energized conductor can result in severe injury or death.
These transducers are for installation by qualified personnel only. To avoid electrical shock, do not perform any installation or
servicing of these transducers unless you are qualified to do so. Disconnect and lock-out all power sources during installation
and servicing. Please read transducer user manuals for instructions and use.
This document provides instructions on connecting the WattNode Pulse Output
kWh Transducers listed above to HOBO H21, H22, U30, UX90, UX120, and
RX3000 series data loggers and to ZW series data nodes.
Note:
For information
on connecting the kWh transducer to the power source and other transducer
details, refer to the WattNode documentation provided by Continental Control
Systems.
Required
•
Selected WattNode Pulse Output kWh Transducer
•
Appropriately rated Current Transducer(s)
•
Smart Sensor-compatible HOBO data logger (H21, H22, U30, or RX3000 series) with:
o
Pulse Input Adapter(s), Onset Part No: S-UCC-M00x
*
o
HOBOware
®
software (version 2.2 or higher for H21 or H22, 2.4 or higher for U30), or HOBOlink for
RX3000
•
22 AWG twisted pair wire (customer supplied) for UX120 series with HOBOware software, version 3.2.0 or higher
•
Pulse input-compatible HOBO data node (ZW series) and HOBO data logger (UX90 series) with:
o
Onset Part No: CABLE-2.5-STEREO
*
o
HOBOware Pro software, version 3.0 or higher for ZW series and HOBOware version 3.3 or higher for UX90
series
*
For monitoring power demand as well as generated power, a second S-UCC-M00x pulse input adapter (for H21, H22, U30
or RX3000 series) or CABLE-2.5-STEREO (for pulse input-compatible ZW series) is required (at output terminal P2).
WattNode Pulse Output kWh Transducer Features
•
The WattNode transducer includes three LEDs—one per phase—for diagnostics and indication of power direction and
correctly installed CTs.
•
The WattNode transducer provides bidirectional kWh energy pulses. Positive energy pulses (energy consumed from the
utility) are output on the P1 and COM terminals and negative energy pulses (energy produced and supplied to the
utility) are output on the P2 and COM terminals. It can be used for conventional power and energy measurement as
well as for net metering and PV applications. For monitoring power demand as well as generated power, a second S-
WattNode Pulse Output kWh Transducer
(Onset Part No. T-WNB-3Y-208-P shown)
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