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CONTINENTAL CONTROL SYSTEMS RWNB-3D-240-P Installation Manual Download Page 13

13

5.2  Measurement

Update Rate:

 ~200 milliseconds. Internally, all measurements are performed at this rate.

Start-Up Time:

 ~500 milliseconds. The meter starts measuring energy and generating pulses 

this long after AC voltage is applied.

Default CT Phase Angle Correction:

 0.0 degrees.

5.3  Electrical

Meter Service 

Type

Nominal Vac 

Line-to-Neutral

Nominal Vac 

Line-to-Line

Phases

Wires

3Y-208

120

208–240

1 or 3

2 - 4

3Y-400

230

400

1 or 3

2 - 4

3Y-480

277

480

1 or 3

2 - 4

3Y-600

347

600

1 or 3

2 - 4

3D-240

120*

208–240

1 or 3

2 - 4

3D-400

230*

400

3

2 - 4

3D-480

277*

480

3

2 - 4

Table 4: WattNode Model Service Types

* Note: the delta models have an optional neutral connection that may be used for measuring 

wye circuits. In the absence of neutral, voltages are measured with respect to ground. Delta 
WattNode models use the phase A and phase B connections for power.

Over-Voltage Limit:

 125% of nominal Vac. Extended over-voltage operation can damage the 

WattNode and void the warranty.

Over-Current Limit:

 120% of rated current. Exceeding 120% of rated current will not harm the 

WattNode meter but the current and power will not be measured accurately.

Maximum Surge:

 4kV according to EN 61000-4-5, 6kV for WattNode Revenue models.

Power Consumption:

 The following table shows maximum volt-amperes, the power supply 

ranges, typical power consumption, and typical power factors with all three phases powered at 
nominal line voltages. The power supply consumes most of the total power, while the measure-
ment circuitry draws 1-10% of the total (6-96 milliwatts per phase, depending on the model). Due 
to the design of the power supply, WattNode meters draw slightly more power at 50 Hz.

Meter 

Service 

Type

Real 

Power 

(60 Hz)

Real 

Power 

(50 Hz)

Power 

Factor

Rated 

VA

 (1)

Power Supply 

Range (Vac)

Power Supply 

Terminals

3Y-208

1.6 W

1.8 W

0.75

4 VA

96 – 138

N

 and 

Ø

A

3Y-400

1.6 W

1.8 W

0.64

4 VA

184 – 264

N

 and 

Ø

A

3Y-480

2.1 W

2.4 W

0.63

4 VA

222 – 318

N

 and 

Ø

A

3Y-600

1.2 W

1.2 W

0.47

4 VA

278 – 399

N

 and 

Ø

A

3D-240

1.7 W

1.9 W

0.63

4 VA

166 – 276

Ø

A

 and 

Ø

B

3D-400

1.4 W

1.5 W

0.47

3 VA

320 – 460

Ø

A

 and 

Ø

B

3D-480

1.8 W

2.2 W

0.53

3 VA

384 – 552

Ø

A

 and 

Ø

B

Table 5: Power Consumption and Supply Voltage

(1)

 Note: The 

Rated VA

 is the maximum at 115% of nominal Vac at 50 Hz. This is the same as the 

value that appears on the front label of the meter.

Maximum Power Supply Voltage Range:

 -20% to +15% of nominal (see table above). For the 

3D-240 service, this is -20% of 208 Vac (166 Vac) to +15% of 240 Vac (276 Vac).

Operating Frequencies:

 50/60 Hz

Summary of Contents for RWNB-3D-240-P

Page 1: ...allation Manual WattNode Pulse Models WattNode Revenue Pulse Models WNB 3Y 208 P RWNB 3Y 208 P WNB 3Y 400 P RWNB 3Y 400 P WNB 3Y 480 P RWNB 3Y 480 P WNB 3Y 600 P RWNB 3Y 600 P WNB 3D 240 P RWNB 3D 240 P WNB 3D 400 P RWNB 3D 400 P WNB 3D 480 P RWNB 3D 480 P ...

Page 2: ...rent Transformers 8 3 5 Connect the Output Signals 9 4 Operation 10 4 1 Initial Configuration 10 4 2 Power Status LEDs 10 4 3 Monitoring 11 4 4 Pulse Scale Factors 11 4 5 Maintenance and Repair 12 5 Specifications 12 5 1 Accuracy 12 5 2 Measurement 13 5 3 Electrical 13 5 4 Pulse Outputs 14 5 5 Certifications 14 5 6 Environmental 15 5 7 Mechanical 15 5 8 FCC Information 15 5 9 Warranty 16 5 10 Limi...

Page 3: ...rnings and precautions before installing and using the product Potential Shock Hazard from Dangerous High Voltage Functional ground should be connected to earth ground if possible but is not required for safety grounding UL Listing mark for U S A and Canada FCC Mark This logo indicates compliance with part 15 of the FCC rules Complies with the regulations of the European Union for Product Safety a...

Page 4: ...0 ØA and ØB 1 Phase 2 Wire 240V no neutral n a 166 276 3D 240 ØA and ØB 1 Phase 3 Wire 120V 240V with neutral 96 138 166 276 3Y 208 N and ØA 3D 240 ØA and ØB 3 Phase 3 Wire Delta 208V no neutral n a 166 276 3D 240 ØA and ØB 3 Phase 3 Wire Delta 400V no neutral non N A n a 320 460 3D 400 ØA and ØB 3 Phase 3 Wire Delta 480V no neutral n a 384 552 3D 480 ØA and ØB 3 Phase 4 Wire Wye 120V 208V with ne...

Page 5: ... CT ØA CT ØC CT L1 Neutral Earth 2 2 2 Single Phase Two Wire No Neutral This circuit occurs in residential commonly 120 240 Vac and some commercial applications The meter is powered from the ØA and ØB terminals We recommend connecting the N terminal to ground to provide a clean voltage reference for the measurement circuitry no current will flow through this terminal ØB ØC N ØA WATTNODE ØB CT ØA C...

Page 6: ...phase delta service to be labeled as the C phase instead of the B phase The WattNode meter will work correctly with the high leg connected to ØA ØB or ØC See the web article https ctlsys com support four_wire_delta_circuits for more information ØB ØC N ØA WATTNODE ØB CT ØA CT ØC CT L3 L2 L1 Neutral Earth 2 2 7 Grounded Leg Service In rare cases with delta services or single phase two wire services...

Page 7: ...ed in an electrical service panel or an enclosure Do not use the meter as a drilling guide the drill chuck can damage the screw terminals and metal shavings may fall into the connectors The meter has two mounting holes spaced 5 375 in 137 mm apart center to center These mounting holes are normally obscured by the detachable screw terminals Remove the screw terminals to mark the hole positions and ...

Page 8: ...nts the WattNode Pulse meter may only be used with UL Listed CTs with a 333 mVac output or the following UL Recognized current transformer models which all generate 333 millivolts AC at rated current See the current transformer datasheets for CT ratings ACT 0750 xxx CTL 1250 xxx CTM 0360 xxx CTS 0750 xxx CTS 1250 xxx CTS 2000 xxxx CTB WxL xxxx CTT 0300 xxx CTT 0500 xxx CTT 0750 xxx CTT 1000 xxx CT...

Page 9: ...ically isolated from dangerous voltages If the output wiring is near line voltage wiring use wires or cables with a 300 V or 600 V rating not less than the service voltage If the output wiring is near bare conductors it should be double insulated or jacketed You may install two wires into each screw terminal by twisting the wires together inserting them into terminal and securely tightening Note a...

Page 10: ...n configuring the WattNode meter see the appropriate Operating and Reference Guide for your model The meter does not include a display or buttons so it is not possible to configure or monitor the meter directly other than the basic LED diagnostics described below 4 2 Power Status LEDs The three status LEDs on the front of the meter can help indicate correct measurements and op eration The A B and ...

Page 11: ... Red Red Red C B A For other LED patterns see the Operating and Reference Guide or contact support for assis tance 4 3 Monitoring The WattNode Pulse models uses opto isolator outputs that simulate contact closures These are generally connected to a data logger or similar monitoring device which can count pulses to measure energy 4 4 Pulse Scale Factors See the Operating and Reference Guide for ful...

Page 12: ...t can be performed by the user other than checking for errors via the status LEDs In the event of any failure the meter must be returned for service contact CCS for an RMA For a new installation follow the troubleshooting instructions in the Operating and Reference Guide before returning the meter for service to ensure that the problem is not connection related The WattNode meter should not normal...

Page 13: ...m Surge 4kV according to EN 61000 4 5 6kV for WattNode Revenue models Power Consumption The following table shows maximum volt amperes the power supply ranges typical power consumption and typical power factors with all three phases powered at nominal line voltages The power supply consumes most of the total power while the measure ment circuitry draws 1 10 of the total 6 96 milliwatts per phase d...

Page 14: ...t Voltage At CT Rated Current 0 33333 Vac RMS Absolute Maximum Input Voltage 5 0 Vac RMS Input Impedance at 50 60 Hz 23 kΩ 5 4 Pulse Outputs Full Scale Pulse Frequencies Standard All Models 4 00 Hz Custom Bidirectional 0 01 Hz to 600 Hz Custom Option P3 Option PV Option DPO 0 01 Hz to 150 Hz Absolute Maximum Pulse Output Frequencies Standard Models Bidirectional 900 Hz Option P3 Option PV Option D...

Page 15: ... 2 5 mm2 300 V screw torque 4 4 lbf in 0 5 N m 5 8 FCC Information This equipment has been tested and complies with the limits for a Class B digital device pursuant to part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired o...

Page 16: ...erations or repairs by anyone other than CCS Except as set forth herein CCS makes no warranties expressed or implied and CCS dis claims and negates all other warranties including without limitation implied warranties of merchantability and fitness for a particular purpose 5 10 Limitation of Liability In no event shall CCS be liable for any indirect special incidental punitive or consequen tial dam...

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