Veris H808 Installation Instructions

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Page 1

Installation Guide

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

• 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.

DANGER

Current Monitoring

Product Overview

The H808 is a current-sensitive switching device that monitors current (amperage) in the conductor passing through it. A change in amperage in the monitored conducter that crosses the switch threshold plus the hysteresis value will cause the resistance of the status output to change state, similar to the action of a mechanical switch. The setpoint is adjustable through the action of a 20-turn potentiometer (see Calibration section). The status

RoHS

Compliant

NOTICE

• 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.

output is suitable for connection to building controllers or other appropriate data acquisition equipment operating at up to 30 volts. The H808 requires no external power supply to generate its output.

Speciﬁcations

H808

Solid-Core Current Switch, Adjustable Trip Point

Sensor Power

Amperage Range

Status Output Ratings

Insulation Class

Setpoint

Frequency Range

Temperature Range

Humidity Range

Hysteresis

Off State Resistance

On State Resistance

Terminal Block Wire Size

Terminal Block Torque

Agency Approvals

Installation Category

Induced from the monitored conductor

0.75 to 50 A continuous*

N.O. 1.0 A@ 30 VAC/DC, not polarit y sensitive

600 VAC RMS (UL); 30 0 VAC (CE )

Adjustable, 0.75 A or less

50 /60 Hz

-15° to 60°C ( 5° to 140°F)

10-9 0% RH non-condensing

10% t ypic al

Open switch represents >1 MΩ

Closed switch represents < 200 mΩ

24 to 14 AWG (0.2 to 2.1 mm2)

3.5 to 4.4 in-lbs (0.4 to 0.5 N-m)

COMPLIANCE INFORMATION

UL508 open divice listing, CE: EN61010 -1

Cat. III, pollution degree 2

Alta Labs, E nercept, Ensp ector, Hawkeye, Trus tat, Aerospo nd, Veris, and th e Veris ‘V’ log o are tradema rks or registe red tradema rks of Veris Ind ustries, L. L.C. in the USA and /or other countri es.

Speciﬁcation Note: For CE compliance, conductor shall be insulated according to IEC 61010-1:2010 The product design provides basic insulation only. Do not use the LED indicators as evidence of applied voltage. * When operating at 50 Hz, low threshold may be 0.9 A.

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Installation Guide Current Monitoring H808

Dimensions

Installation

Removable/Adjustable Mounting Bracket

0.9"

(23 mm)

2.8"

(71 mm)

1.1"

(27 mm)

0.4” x 0.2” Slot (x2)

 0.7" (18 mm)

1.7

(43 mm)

2.3"

(58 mm)

Disconnect and lock out power to the enclosure containing the conductor to be monitored.

1. Locate a mounting surface for the removable mounting bracket that will allow the monitored conduc tor to pass through the center window when it is installed and that will keep the device at least ½” (13 mm) from any uninsulated conductors. Determine cable routing for the controller connection, allowing wiring to reach the mounting location.

CONTACTOR

Insulated Conductor Only

DDC CONTROLLER

2. Drill holes to mount the bracket to the chosen surface using the included screws.

3. Wire the output connections and relay between the sensor and the controller (solid-state contact).

4. Route the conductor through the sensor’s center window and slip the assembly into the mounting bracket.

5. Secure the enclosure and reconnect power.

6. Calibrate the sensor with the load running normally.

Fan or Pump

Motor

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Installation Guide Current Monitoring H808

Notes

For load currents greater than sensor maximum rating:

Use a 5 Amp (H68xx series) current transformer (CT) as shown. This technique can be combined with wrapping (see below) to add range for a low current load on a high current source.

> 50 A (Sensor max.)

240A

DANGER: 5A CTs can present hazardous voltages. Install CTs in accordance with

300A:5A

H68xx-5A CT

manufacturer's instructions. Terminate the CT secondary before applying current.

For load currents less than sensor minimum rating:

Wrap the monitored conductor through the center window and around the sensor body to produce multiple turns. This increases the current measured by the transducer. Program the controller to account for the extra turns (e.g., if four turns pass through the sensor (as shown) divide the normal reading by 4).

< 0.75 A (Sensor Min.)

0.5A

CAUTION

• Derate the product’s maximum current for the number of turns through the sensing window using the following formula.

Rated Max. Amps ÷ Number of Turns = Max. monitored Amps

e.g. : 100A ÷ 4 Turns = 25 Amps max. in monitored conductor

• Failure to follow these instructions can result in overheating and permanent equipment damage.

RISK OF EQUIPMENT DAMAGE

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Installation Guide Current Monitoring H808

Calibration

Before beginning calibration, establish normal load conditions. Then choose either A or B below.

A. To monitor under-current (belt loss, coupling shear, status)

Status

1. Turn setpoint screw clockwise until Status Open LED turns on.

2. Slowly turn the screw counter clockwise until the Status Closed LED turns on.

Closed

Status

Open

Status

Closed

Status

Open

Setpoint

3. Turn the screw an additional ¼ turn counter clockwise for operational margin.

Setpoint

B. To monitor over-current (mechanical problems, seized impeller)

Status

1. Turn setpoint screw counter clockwise until Status Closed LED turns on.

Closed

Status

Open

Setpoint

Troubleshooting

Status

2. Slowly turn the setpoint screw clockwise until the Status Open LED just turns on.

Closed

Status

Open

Setpoint

3. Turn the setpoint screw an additional ¼ turn clockwise for operational margin.

Setpoint

Problem Solution

No Reading at Controller • Check sensor calibration (see above)

• Check for control power at sensor (<30VDC)

• Check for amperage in monitored conductor (>0.75A)

Setpoint screw has no stops • The setpoint screw has a slip-clutch at both ends of its travel to avoid damage. Twenty turns CCW will reset

Both LEDs are lit Unit is out of calibration. Turn screw 20 turns CCW and recalibrate.

the sensor to be most sensitive. Repeat calibration above.

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Veris H808 Installation Instructions

Specifications and Main Features

Frequently Asked Questions

User Manual