Veris H931 Installation Instructions

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. NEC2011 Article 100

No responsibility is assumed by Veris Industries for any consequences arising out of the use of this material.

DANGER

3.0”

Current Monitoring

Product Overview

The H931 is a current-sensitive device that monitors current (amperage) in any of three eld-selectable ranges: 0-30, 0-60, or 0-120 amperes. These ranges represent the maximum current that can be applied to the monitored conductor. The H931 transforms the monitored current into a 4-20mA output suitable for connection to building controllers or other appropriate data acquisition equipment operating at up to 30 volts. It is also equipped with a command relay. The H931 requires a 12-30VDC power supply to generate its output.

The H931 housing oers unprecedented mounting exibility. The mounting bracket can be attached in three dierent places. Additionally, the bracket is compatible with the Veris AH01 DIN Rail clip, allowing DIN mounting.

Speciﬁcations

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.

H931

Split-Core Current Transducer with Relay,

4-20mA Output

Sensor Power

Insulation Class

Frequency Range

Temperature Range

Humidity Range

Accuracy

Response Time

Terminal Block Wire Size

Terminal Block Torque

Agency Approvals

30mA (max.)@12-30VDC

60 0VAC RMS

Relay

SPST, N.O., 24 VAC/ DC

50/60Hz

-15° to 60°C ( 5° to 140°F)

10 - 90% RH , non-condensing

±2% full scale from 10% to 100% ( selected range )

2 sec.

24-14 AWG ( 0.2 to 2.1 mm2)

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

UL 508 open device listing

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.

Do not use LED status indicators as evidence of applied voltage

Dimensions

Removable Mounting Bracket

1.0”

(25 mm)

1.1”

(26 mm)

3.1”

(79 mm)

0.8”

(21 mm)

2.8”

(70 mm)

Ø 0.3”

(8 mm)

2.5”

(64 mm)

Other companies’ trademarks are hereby acknowledged to belong to their respective owners.

Bracket can be mounted on three sides for added installation exibility.

Self-gripping Iris

1.4”*

(36 mm)

Use DIN Rail Mounting clip (Veris part number AH01) to mount on standard DIN rail.

Installation Guide Current Monitoring H931

Installation

Notes

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 product at least ½” (13 mm) from any uninsulated conduc tors. Determine cable routing for the controller connection, allowing wiring to reach the mounting location. If using with a variable frequency drive, then mount the sensor on the line side.

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

3. Set the desired amperage range (30, 60, or 120 Amps).

4. Wire the output connections between the sensor and the controller (4-20 mA).

5. Snap the sensor over the wire to be monitored and clip the assembly to the mounting bracket.

6. Scale the controller software to match the sensor’s output.

7. Secure the enclosure and reconnect power.

CONTACTOR

Motor

12-30 VDC

Power Source

Fan or Pump

CONTROLLER

(4-20mA)

(Relay Coil)

CONTROL POWER

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.

240A

>120 A (sensor max.)

DANGER: 5A CTs can present hazardous voltages. Install

300A:

H68 xx-5A CT

CTs in accordance with 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).

< 1.5 A (Sensor Min.)

• 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.

CAUTION

RISK OF EQUIPMENT DAMAGE

Other companies’ trademarks are hereby acknowledged to belong to their respective owners.

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