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Honeywell Class 500 Installation Instructions Manual Download Page 3

CLASS 500 ADVANCED KWH/DEMAND METER

3

62-0304—05

INSTALLATION

VERIFY

 the input voltage rating and configuration on the unit panel label to ensure it is suitable for the intended electrical service. 

Meters labeled for 115/208 volt service 

MUST NOT

 be installed on service feeds of 277/480 volt and vice versa.

VERIFY 

that the Class 500 Meter current sensors are sized suitably for the load to be monitored. Compare the color of the arrows 

on the current sensors to the chart below to confirm the correct current sensor is being used.

Table 1. Sensor arrow color and rating

CAUTION

Internal circuit card components are extremely sensitive to electrostatic discharge. Prior to handling or touching 

the internal circuitry, discharge any static build-up on your person. To discharge yourself, touch a grounded 

metal object such as conduit or an earth grounded metal enclosure.

WARNING

Use of the Class 500 Meter in a manner inconsistent with this manual or not specified by the manufacturer in 

writing can cause permanent damage to the unit and/or serious injury to the operator. The protection and safety 

features provided by this equipment may become impaired or otherwise compromised.

WARNING

High voltages are present on main power terminal block, TB1. Risk of serious injury and/or electrical shock 

exists. Prior to performing any wiring operations, review all the contents of the user’s manual and de-energize 

the MAINS power switch. Only qualified personnel should perform installation wiring. Installation wiring must 

comply with all local and national electrical codes. 

WARNING

Failure to ground the enclosure creates a possible shock hazard. Do not operate the Class 500 Meter without a 

protective earth wire attached securely to the PE terminal screw. After installing the protective earth wiring, 

secure the screw tightly (10 N-m torque). NEVER open the front panel of the unit while the unit has MAINS power 

applied. Failure to comply can increase the risk of serious injury and for electrical shock.

Internal Electronic Assemblies

The unit is composed of two major subassembly boards: the main power and display boards (See Fig. 1).

NOTE: Units supplied in a NEMA 12 metal enclosure are suitable for indoor applications only. For outdoor installation, use the 

NEMA 4 enclosure.

Fig. 1. Subassembly boards in the Class 500 Meter.

Sensor Arrow Color Code

Sensor

Brown

100 Amp

Red

200 Amp

Yellow

400 Amp

Black

800 Amp

Blue

1600 Amp

White/Black

3200 Amp

M28750

POWER SUPPLY BOARD

DISPLAY BOARD

Summary of Contents for Class 500

Page 1: ...0 Meter is a 3 element meter with communications The device is used to monitor electric power usage of individual loads after the utility meter Installation must only be performed by qualified personnel and in accordance with these instructions and all applicable local and national electrical codes ...

Page 2: ...lay Readout KWh accumulated Standard Ranges 3 or 4 Wire 120 208 240V 100 200 400 800 1600 3200 Amp 3 or 4 Wire 277 480V 100 200 400 800 1600 3200 Amp 4 Wire 346 600 V 100 200 400 800 1600 3200 Amp RS485 Serial Communication Interface Cable Specifications UL listed rated telephone cord 4 conductor 300VAC stranded conductors 22 26 AWG Input Output Voltage Ground isolated 5 4 VDC Cable Connector RJ 1...

Page 3: ... become impaired or otherwise compromised WARNING High voltages are present on main power terminal block TB1 Risk of serious injury and or electrical shock exists Prior to performing any wiring operations review all the contents of the user s manual and de energize the MAINS power switch Only qualified personnel should perform installation wiring Installation wiring must comply with all local and ...

Page 4: ... to the Class 500 Meter protective earth ground terminal screw located on the bottom right side of the main power board After installing the protective earth ground wire securely fasten the protective earth ground screw WARNING Failure to attach the protective earth ground wire securely to the enclosure creates a potential shock hazard Do not operate the meter without a protective earth ground con...

Page 5: ...n RS485 or ethernet link 7 Using an AC voltmeter verify that the input voltage readings are within the limits specified in Table 2 NOTE On 3 wire systems the voltages are measured Phase to Phase On 4 wire systems the voltages are measured Phase to Neutral 8 Remove power from the unit by de energizing the external switch Current Sensor Installation and Wiring Once the AC voltages have been confirme...

Page 6: ...white conductor and which terminal is wired to the black conductor Once each current sensor is wired to its respective plug insert each plug into the appropriate header MAINS LINE VOLTAGE AND CURRENT SENSOR WIRING DIAGRAMS Fig 5 3 phase 4 wire installation diagram Fig 6 3 phase 3 wire installation diagram Line Voltage Current Sensor Diagnostics Ensure that the three phase AC MAINS voltage wiring a...

Page 7: ... the correct header positions Verify that the current sensors are installed in the correct direction on the conductor being monitored Verify that the current sensors plugs are terminated in the correct header on the Main Power board If the error messages still haven t been cleared measure the AC voltage output across the plug terminals of each current sensor individually Set the AC voltmeter to th...

Page 8: ...DEN 1120A cable or an equivalent A cable rating of 600V allows a RS 485 network to be connected to 480 volt meters Communications wiring should enter exit the Class 500 Meter enclosure through the 1 2 in hole located on the upper top surface of the enclosure using a 4 conductor UL approved telephone cord terminated with an RJ 11 male connector NOTE A 3 screw terminal block is also available for th...

Page 9: ...LO etc 3 Connect the GND terminal Display PCB J3 Pin 3 of each Class 500 unit together so that all unit GND terminals are linked GND to GND to GND etc 4 After completing the wiring of connector J3 for all units complete the wiring to the EMS through the appropriate input termi nals RS485 or Ethernet METHOD 2 DAISY CHAIN WITH MODULAR JACKS 1 Each display board has two RJ 11 jacks available to facil...

Page 10: ...nels etc When paralleling current sensors the following rules must be followed for accurate readings 1 Current sensors must be installed in complete sets of three with a maximum of three sensors installed in parallel per phase 2 All sensors used in parallel must be of the same amperage rating i e 100 Amp 200 Amp etc The rating is determined by the current rating amperage of the Class 500 Meter For...

Page 11: ...nning Windows 2000 XP Vista or Windows 7 and is used to interface to many products including the Class 500 E Mon Energy Software requires data access via the EZ 7 protocol Reference the E Mon Energy software for specific instructions to perform the following operations Peak Demand Reset Modem Initialization Setting or changing the Remote Dial Out Number Downloading Profile Data Unit Initialization...

Page 12: ... with any conductive material CAUTION The internal circuit card components are extremely sensitive to electrostatic discharge Be careful not to touch internal circuitry prior to discharging any static build up on your person To discharge yourself touch a grounded metal object such as a conduit or a metal enclosure exterior The battery cell is mounted in a socket on the upper right side of the main...

Page 13: ...channels 3 and 4 on the Class 500 Meter to be used for capturing pulses from external devices These devices can be another electric meter a water meter a gas meter or any unit with an output pulse The output pulse of the device must be in the form of a dry contact either physical or electronic Count speeds of up to 10 Hz 600 ppm are accepted by the Class 500 Meter and the count is available at Mod...

Page 14: ...kW ØC R Real power phase C Y 18 41035 kVAR ØA R Reactive power phase A Y 19 41037 kVAR ØB R Reactive power phase B Y 20 41039 kVAR ØC R Reactive power phase C Y 21 41041 kVA ØA R Apparent power phase A Y 22 41043 kVA ØB R Apparent power phase B Y 23 41045 kVA ØC R Apparent power phase C Y 24 41047 PF ØA R Power factor phase A Y 25 41049 PF ØB R Power factor phase B Y 26 41051 PF ØC R Power factor ...

Page 15: ...eywell Energy Meter R 46017 8 1356 4503 0613 0300 0000 0000 0000 0000 Initialize device with date time W 46025 8 1356 4503 0613 0300 0000 0000 0000 0000 RTC date time will accept broadcast command R W 46033 8 1356 4503 0527 0300 0000 0000 0000 0000 CPU date time 7 bytes rest is reserved for other future formats R W 46041 8 0001 0001 0000 0000 0000 0311 0020 1100 Group location Device ID number R W...

Page 16: ...normally sized at 14 AWG but be sure to confirm this requirement with your local and national electrical codes requirements Q What size wire should l use to extend the current sensor leads A These wires are normally 14 AWG twisted pair arrangement Consult your local electrical code for proper sizing requirements Q The load l need to monitor has parallel feeds How do l install the current sensors f...

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