Honeywell Class 320 Meter User manual

62-0397-02

INSTALLATION INSTRUCTIONS

Class 320 Meter

ADVANCED KWH/DEMAND METER

CLASS 320 METER

62-0397-02 2

TABLE OF CONTENTS

Section 1.0 Introduction 3

Section 2.0 Internal Electronic Assemblies 5

Section 2.1 Main Power Board 5

Section 2.2 Display Board 6

Section 3.0 Meter Technical Specifications 7

Section 4.0 Safety Label Definitions and Information 10

Section 5.0 Precautionary and Safety Information 11

Section 6.0 Meter Installation 12

Section 6.1 Mounting the Class 320 Meter 12

Section 6.2 Main Power Board Connections 12

Section 6.3 Phasing of Line Voltage 16

Section 6.4 Current Sensor Installation & Wiring 17

Section 6.5 Main Power & Current Sensor Wiring Diagram 19

Section 6.6 Line Voltage/Current Sensor Diagnostics 20

Section 6.7 RS-485 Wiring 21

Section 6.8 RS-232 Communications 24

Section 6.9 Modem Wiring 26

Section 6.10 Modbus RTU Wiring 29

Section 6.11 BACnet MS/TP Wiring 30

Section 6.12 Connecting Class 320 Meters to USB Key using RS485 30

Section 6.13 Ethernet Communications 31

Section 7.0 Multiple-Load Monitoring 32

Section 8.0 Preventative/Scheduled Maintenance 33

Section 9.0 Lithium Battery Replacement 34

Section 10.0 Class 320 Meter Operating Modes 36

Section 10.1 Start Up Screens 36

Section 10.2 Normal Mode Display Screens 37

Section 10.3 How to Program the Display Screens 38

Section 11.0 High Voltage Metering 43

Section 12.0 Class 320 Protocol Definitions 46

Section 13.0 Meter Limited Warranty 53

CLASS 320 METER

3 62-0397-02

1.0 INTRODUCTION

The Honeywell Class 320 meter is a 3-element meter with communications. The

device is used to monitor electric power usage of individual loads after the utility meter

and store kW and kVAR data for automatic meter reading. Installation must only be

performed by qualified personnel and in accordance with these instructions and all

applicable local and national electrical codes. E-Mon and its representatives assume

no responsibility for damages or injury resulting from the improper installation of this

meter.

Verify the input voltage rating and configuration on the unit panel label to ensure that it

is suitable for the intended electrical service. For example, Class 320 meters labeled

for 120/208V service MUST NOT be installed on service feeds of 277/480 volts or 347/

600 and vice versa.

Verify that the Class 320 meter’s 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.

Meter Labeled: Works On:

120V 120V, Single Phase

120/240V 120/240V, Single Phase

277V 277V, Single Phase

208V 208V, Three Phase

240V 240V, Three Phase

400V (380V,415V) 400V, Three Phase

480V 480V, Three Phase

600V 600V, Three Phase

Sensor Arrow Color Code Sensor Rating

Brown 100 A

Red 200 A

Yellow 400 A

Black 800 A

Blue 1600 A

White/Black 3200 A

CLASS 320 METER

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CAUTION

Internal circuit components are extremely sensitive to electrostatic discharge.

Prior to handling or touching internal circuitry, discharge any static buildup on

your person. To discharge yourself, touch a grounded metal object such as

conduit or an earth-grounded enclosure.

WARNING

Use of this instrument, the Honeywell Class 320 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.

NOTE: If any trouble arises during the installation or functional verification opera-

tions, do not immediately remove the unit. Before removing the unit, contact

Honeywell’s technical support and/or engineering department. Honeywell’ s

technical department will assist you in detailed troubleshooting of the Class

320 meter installation and assist you in getting the unit operating correctly.

CLASS 320 METER

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2.0 INTERNAL ELECTRONIC ASSEMBLIES

The units are comprised of two major subassembly boards, the main power board and

the display board. Both circuit boards are mounted inside a UL Type 1 (steel) or Type

4X (rain tight) enclosure.

Fig. 1. Internal Electronic Assemblies.

2.1 Main Power Board

Connections to this board include the MAIN Power Input and current sensors.The

MAIN Power Input terminals are positions one through four on the four position screw

terminal block, TB1. These terminals are covered with a protective shield for safety

purposes. The current sensor assemblies interface to TB2, TB3 and TB4. Each

terminal block corresponds to an input voltage phase; care must be exercised to

ensure that each current sensor is connected to the correct terminal block. One three

terminal screw connector is provided for RS-485 communications.

Fig. 2. Main Power Board Connections.

M33307

MAIN

POWER

BOARD

DISPLAY

BOARD

M33308

RS-485

MAIN

POWER

INPUT

CURRENT

SENSOR

INPUT

CLASS 320 METER

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2.2 Display Board

The display board connects to the main power board via a flex ribbon cable and the

board mounts on the inside of the housing door.

The Class 320 meter features a 4-line LCD display that indicates multiple meter data

points.

Fig. 3. Display Board.

M33279

DOWN UP SELECT MENU

CLASS 320 METER

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3.0 METER TECHNICAL SPECIFICATIONS

Ordering Information: Define brand, class, input voltage, amperage, protocol, and

sensor type in the format A-BB-CCC-DDDD-E-FFF-GGG, where:

A = Brand: H for Honeywell

BB = designates Class 320 (32), or Class 500 (50) meter

CCC = input voltage: (208, 400, 480, 600, 120 volt for High Voltage)

DDDD = current rating: (100, 200, 400, 800, 1600, 3200, 25HV)

E = enclosure: J = metal (type 1), R = non-metallic (rain tight) (type 4X), M = MMU

FFF= protocol: RTU = Modbus, BAC = BACnet, EZ7 = proprietary

“-SP”= Single or Two Phase

GGG = Sensors: KIT = split-core, SCS = solid-core, “blank” = none supplied

Brand

Class

Voltage

Amperage

Enclosure

Communication

Protocol

Current

Sensor/Option

Current

Sensor/Option

Current

Sensor/Option

Example H 32- 208 100- J RTU KIT

H32-208100-JRTUKIT

Brand Honeywell

Class 320

Voltage 120, 208, 400 (380-415), 480, 600

Amperage 2HV, 100, 200, 400, 800, 1600, 3200

Enclosure J (JIC Steel), I (Interior only), M (MMU Style), R (Rain tight)

Communication

Protocol

RTU (Modbus RTU), BAC (BACnet MS/TP), EZ7

Current Sensors/

Options

KIT (Split Core), SCS (Solid-Core), -SP (Single or Two Phase - 2

element)

Input Voltage

Configuration

3-wire (delta) Or 4-wire (wye)

Mains Voltage Input Up To 600 VAC RMS available

Input Power 6 VA maximum rating

Current Sensor

Rating

Up To 3200 amps RMS AC available

Power Factor 0.5 leading or lagging

Line Frequency 50-60 Hz

Metering Accuracy ANSI C12.20

CLASS 320 METER

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Temperature Range -20C to +50C

Relative Humidity

Range

0-95% non-condensing

Altitude 2000 meters maximum

Voltage Overload +25% continuously: +100% For 20 cycles

Current Sensor

Overload

100% for 1 minute

Pollution Degree Degree 2 in accordance with IEC 664

Standards EN 61326-1:2006 IEC 61010-1:2001, 2nd Edition

Installation

(Overvoltage)

Category

Category III

Enclosure Material Type 1 JIC steel or Type 4X Rain Tight

Display Readout LCD

Standard Ranges 2-Wire Delta 120 VAC: 100, 200, 400, 800,1600, 3200 Amp

4-Wire Wye 120/208 VAC: 100, 200, 400, 800,1600, 3200 Amp

3-Wire Delta 120/240 VAC: 100, 200, 400, 800,1600, 3200 Amp

4-Wire Wye 277/480 VAC: 100, 200, 400, 800,1600, 3200 Amp

2-Wire Wye 277 VAC: 100, 200, 400, 800,1600, 3200 Amp

4-Wire Wye 400 VAC: 100, 200, 400, 800,1600, 3200 Amp

3-Wire Delta 480 VAC: 100, 200, 400, 800,1600, 3200 Amp

4-Wire Wye 600 VAC: 100, 200, 400, 800,1600, 3200 Amp

RS-485 Serial

Communications

Cable

Cable: UL-listed/rated/3-conductor,

300 VAC, stranded

conductors, 22-26 AWG.

Input/output Voltage: Ground-isolated +/-5.4Vdc

Cable Connector: Screw terminal termination

Circuit Input Isolation: 5.3kVAC

Max Cable Distance: 4000 feet

Max Network Nodes: 64 cabling nodes (including

master)

Baud Rate: 9600, 19200, 38400, 76800

Recommended

In-Line Fuse

Manufacturer: Littlefuse

Mfg. Part No: KLDR.100

Rating: 100mA, time-delay, 600VAC

cartridge fuse

CLASS 320 METER

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Battery Cell: Description: Non-rechargeable cell used for

memory retention

Manufacturer: Panasonic

Mfg Part No: CR2032

Working Voltage: 3Vdc

Current Capacity 225 mAHr

Electrolyte: Manganese Dioxide Lithium

CLASS 320 METER

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4.0 SAFETY LABEL DEFINITIONS AND

INFORMATION

The 320 meter may contain one or more of the following labels. Operator(s) should

familiarize themselves with the meaning of each label to minimize risk.

FCC Notice

This equipment has been tested and found to comply with the limits for a Class B

digital device, pursuant to part 15 of the FCC Rules. These limits are designed to

provide reasonable protection against harmful interference in a residential installation.

This equipment generates, uses and can radiate radio frequency energy and, if not

installed there is no guarantee that interference will not occur in a particular

installation. If this equipment does cause harmful interference to radio or television

reception, which can be determined by turning the equipment off and on, the user is

encouraged to try to correct the interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver

- Connect the equipment into an outlet on a circuit different from that to which the

receiver is connected.

- Consult the dealer or an experienced radio/TV technician for help.

Standards Compliance:

BACnet MS/TP and IP protocol is BTL listed.

LonWorks TP/FT-10 protocol is LonMark® certified.

The presence of this label is a cautionary indicator identifying a

danger risk. The manual should be consulted prior to proceeding.

The presence of this label indicates an electrical shock hazard exists

in the location or area where the label is placed. Prior to proceeding,

the MAINS power must be disconnected and the manual consulted for

safety information.

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