Veris H8238 Installation Instructions

POWER MONITORING

the user will be required to correct the interference at his own expense.

H8238

Multi-Circuit Meter

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

• Follow safe electrical work practices. See NFPA 70E in the USA, or applicable local codes.

• This equipment must only be installed and serviced by qualiﬁed electrical personnel.

• Read, understand and follow the instructions before installing this product.

• Turn oﬀ all power supplying equipment before working on or inside the equipment.

• Use a properly rated voltage sensing device to conﬁrm power is oﬀ. DO NOT DEPEND ON THIS PRODUCT FOR VOLTAGE INDICATION

• SECONDARY LEADS/TERMINALS OF CURRENT OUTPUT (e.g. 5A) CTs MUST BE SHORTED, OR CONNECTED TO THE BURDEN AT ALL TIMES.

• Only install this product on insulated conductors.

Failure to follow these instructions will result in death or serious injury.

A qualied person is one who has skills and knowledge related to the construction and

operation of this electrical equipment and the installation, and has received safety training to recognize and avoid the hazards involved. NEC2009 Article 100

No responsibility is assumed by Veris Industries for any consequences arising out of the

use of this material.

NOTICE

INSTALLATION GUIDE

SPECIFICATIONS

Electrical Services Eight 3Ø circuits sharing a common line voltage source Sample Rate 1280 Hz Operating Temperature Range 0° to 60°C (32° to 140°F) (<95% RH, non-condensing) Storage Temperature Range -40°C to 70°C (-40° to 158°F) Altitude of Operation 3 km Systems Accuracy +/- 1% (target, exclusive of user-supplied CTs)* Variable Update Rate 200 msec for voltages, 1.6 sec for all others

Measured Voltage Inputs:

Number of Channels Three (phase A, B, C, plus neutral). Average of phases used for L-N values if no neutral present Maximum Voltage 277VAC L-N +10%; 480VAC L-L +10% Frequency 50/60 H z Terminal Block 4-position Euro style pluggable connec tor (max. wire size 12 gauge); torque 5.7 in•b (0.64 N•m)

Measured Current Inputs:

Number of Channels 24 (8 meters x 3 phases/meter) CT Input Type 5 Amp (customer-supplied) CT Range Each of 8 meter s independently adjustable from 1A:5A to 9999A:5A Terminal Block 6-position Euro style c age clamp connector (max. wire size 14 gauge); torque 4.4 in•lb (0.50 N•m)

Operating Power Inputs:

Power Source Dedicated 120VAC L-N (H8238) or 240VAC L-N (H8238E); fused 40 mA Power Voltage Tolerance +10/-25% Frequency 50/60 Hz Terminal Block 2-position Euro style pluggable connector (max. wire size 12 gauge)

Network Connections:

Type Modbus RTU Connection DIP switch-selectable 2-wire or 4-wire Address DIP switch-selectable base address (1 to 233 in steps of 8) Baud Rate DIP switch-selectable 2400, 4800, 9600, 19200** Parity DIP switch-selectable NONE, ODD, EVEN Communication Format 8-data-bits, 1-star t-bit, 1-stop-bit Terminal Block 5-position Euro style pluggable connec tor (max. wire size 12 gauge); nominal torque 4.0 in•l b (0.45 N•m); maximum torque 5.0 in•lb (0.56 N•m) Installation Categor y Cat III, pollution degree 2

• This product is not intended for life or safety applications.

• Do not install this product in hazardous or classiﬁed locations.

• The installer is responsible for conformance to all applicable codes.

• Mount this product inside a suitable ﬁre and electrical enclosure.

FCC PART 15 INFORMATION NOTE: This equipment has been tested by the manufacturer and found

to comply with the limits for a class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case

Modiﬁcations to this product without the express authorization of Veris Industries nullify this statement.

* Accuracy specication valid only whe n amperages are greater than 10% of maximum CT range. ** Baud rates for H8238EL are 1200, 2400, 4800, and 9600.

QUICK INSTALL

Observe precautions for handling static sensitive devices to avoid damage to the circuitry that is not covered under the factory warranty.

1. Connect the current inputs.

2. Connect the voltage leads.

3. Congure the communication switches.

4. Select a network address.

5. Connect the RS-485 connection to the communications wiring.

PRODUCT IDENTIFICATION

6. Connect the circuit power.

MODEL DESCRIPTION

H8238 Multi-Circuit Monitor, 90-130 VAC supply voltage

H8238E Multi-Circuit Monitor, 240 VAC supply voltage

H8238EL Multi-Circuit Monitor, 240 VAC supply voltage, low baud rate version

Alta Labs, Enercep t, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘ V’ logo are trademark s or registered tradema rks of Veris Industries, L.L .C. in the USA and /or other count ries.

H8238

101

INSTALLATION GUIDE

PRODUCT OVERVIEW

The H8238 multi-circuit meter provides a means of monitoring multiple loads originating from the same electrical service. The multi-circuit meter can monitor up to eight 3-phase, 3-wire loads or six 3-phase, 4-wire loads with neutral current monitoring. With one RS-485 connection, the H8238 provides a Modbus RTU communications output and 72 alarms for situations such as over/under voltage, over/under current, and phase loss. Up to 30 devices can be addressed on the same Modbus network.

DIMENSIONS

Top View

Side View

main circuit board

mounting bracket

A B

PRODUCT DIAGRAM

1. Board Connection Ribbon Cable: Connects the transducer and CT circuit

boards.

2. Conﬁguration Table: Easy reference communications conguration chart, silk-

screened on the circuit board.

3. ALIVE LED: Flashes once per second to indicate correc t operation. If steadily lit,

indicates internal communications diagnostic event.

4. Sensed Voltage Connection: Sensed line voltage, common for all meter

channels. 0-480 VAC.

5. Baud Rate & Parity Selection Switches: Field selectable parity, baud rate, and

2 or 4 wire communications parameters.

WIDTH: A 5.3”/135mm (board) B 8.9”/226mm (mounting bracket base)

LENGTH: C 6.0”/153mm D 12.8”/325mm

6. Modbus Address DIP Switches: Set these switches must be set to assign an

individual Modbus address before connecting the device (see page 7) .

7. TX LED: Indicates successful transmission of information over the Modbus

network.

8. Optical Isolation: An optical isolation barrier separates high voltage from the

HEIGHT: E 2.9”/74mm F 4.0”/101mm

communications network.

9. RS-485 2 or 4-wire Connection: Daisy chain multiple H8238s using a 2 or

4-wire Modbus network.

10. RX LED: Indicates successful reception of information over the Modbus network.

11. Power Transformers: Linear power supply for reliability and low noise.

12. 250 VAC 40mA Slow Blow Fuse: Fused power connection for circuit protection.

13. 120 or 240 VAC Power Connection*: Easy 2-wire 120 or 240 VAC line to neutral

50/60 Hz.

14. 5A CT Input Terminals: Current Transformer (CT) terminals accept any 5 A CT

signal. Two wire, not polarity sensitive.

* For 240 VAC power connection version, use the H8238E or H8238EL.

DANGER: 5A CTs can present hazardous voltages. Install CTs in accordance with manufacturer's instructions. Terminate the CT secondary before applying current.

Alta Labs, Enercep t, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘ V’ logo are trademark s or registered tradema rks of Veris Industries, L.L .C. in the USA and /or other count ries.

H8238

JP1 JP2

METER 1

JP3

A B C

INSTALLATION GUIDE

INSTALLATION

Disconnect and lock out power to the device.

Current Conﬁguration

DANGER: 5A CTs can present hazardous voltages. Install CTs in accordance with manufacturer's instructions. Terminate the CT secondary before applying current.

1. Connect the current inputs. The multi-circuit meter is capable of monitoring up to eight 3Ø 3-wire circuits or six 3Ø circuits plus neutral current. Choose either 8 or 6 meter conguration and proceed to either step 2 or 3, as appropriate.

2. Eight 3Ø 3-Wire Circuit Monitoring Mode: Connect 5 Amp CTs to terminal blocks JP1 through JP24. The JP terminal blocks are two position, not polarity sensitive, and compatible with standard 2-wire 5 Amp CT outputs. Connect each monitored service to the JP terminals within a meter set. For example meter #1 CT inputs are labeled JP1 (PhA), JP2(PhB), & JP3(PhC). Connect the CT monitoring phase A for metered service to the rst JP in its set.

3. Six 3Ø 4-Wire Circuit Monitoring Mode: Connect 5 Amp CTs to terminal blocks JP1 through JP24. The JP terminal blocks are two position, not polarity sensitive, and compatible with standard 2-wire 5 Amp CT outputs. Connect each monitored service to the JP terminals within a meter set. For example meter #1 CT inputs are labeled JP1 (PhA), JP2 (PhB), & JP3 (PhC). Connect the CT monitoring phase A for metered service to the rst JP in its set. The terminal blocks referenced by meter 7 and meter 8 are used to monitor neutral currents. Wire the CT monitoring neutral current for the service monitored by METER 1 to JP19. Wire the CT monitoring neutral current for the service monitored by METER 2 to JP20. Wire the CT monitoring neutral current for the service monitored by METER 3 to JP21 and so on through JP24.

4. Connect the voltage leads to the phase conductors as shown in the wiring examples on this page. The monitored voltage must be common to all services monitored by the CTs installed previously.

HOT

3-Phase 3-Wire Installation

1-Phase 3-Wire Installation

†

Neutral current monitoring optional

3-Phase 4-Wire Installation

1-Phase 2-Wire Installation†

120V HOT

Alta Labs, Enercep t, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘ V’ logo are trademark s or registered tradema rks of Veris Industries, L.L .C. in the USA and /or other count ries.

Neutral current monitoring optional

† Phase loss, Under Current & Under Voltage alarms are ac tive when monitoring single phase lo ads.

Neutral current monitoring optional

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