Veris H722LC Installation Instructions

VERIS INDUSTRIES

™

CURRENT MONITORING

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.

DANGER

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.

0.2” x 0.15” slot (2x)

1.1"

(27 mm)

2.8"

(68 mm)

0.7" Dia

(19 mm)

0.9" (23 mm)

3.0"

(75 mm)

Removable/Adjustable Mounting Bracket

3.8"

(95 mm)

4.2"

(106 mm)

Fan or Pump

CONTROL LER

0-5VDC

COMM

+ –

VERIS INDUSTRIES

Portland, Oregon 97223

1-800-354-8556

CONT ACTOR

Insu lated Conduc tor Onl y

INSTALLATION GUIDE

H722LC 722LC

Solid-Core Current Transducer,

0-5VDC Output

Installer’s Speciﬁcations

Amperage Range 0-10/20/40 Amps (slide switch selec table) Sensor Power Induced from monitored conductor Insulation Class 600VAC RMS (UL), 300VAC RMS (CE) Frequency 50/60Hz Temperature Range -15° to 60°C (5° to 140°F) Humidity Range 10-90% RH, non-condensing Accuracy ±2% FS from 10% - 100% of selected r ange Response Time 2 sec. Terminal Block Maximum Wire Size 14 AWG Terminal Block Torque (nominal) 4 in-lbs (0.45 N-m) Agency Approvals UL 508 open device listing CE: EN61010-1:2001-2, CAT III, deg. 2, basic insulation

quick install

Wiring ExamplE

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 othe r countries.

Disconnect and lock out power.1.

Install the mounting bracket to the back of the electrical enclosure, no closer than 2.

½” (12mm) to an uninsulated conductor.

Slide the conductor to be monitored through the sensing hole of the current 3.

switch. Terminate the conductor. See Notes (page 2) for currents under 1 Amp or above 40 Amp.

Set the desired amperage range on the H722LC (10, 20, or 40 Amps).4.

Wire the output connec tions between the H722LC and the controller (0-5VDC).5.

Reconnect power.6.

Scale the controller software to match the H722LC’s output.7.

DimEnsions

VERIS INDUSTRIES

™

H722LC

SENSED AMPS

Selected Range*

0 VDC

5 VDC

SENSOR OUTPUT

*Factory calibrated ranges selected

with the amperage range switch

DDC

CONTROLLER

COMM

0-5VDC Input

CAUTION: Consult instructions prior to installation

Use min. 75º C insulated conductor

ig20

AMPERAGE

RANGE

40 20 10

OUTPUT 0-10VDC

–

Self-Powered Output

Amperage Range Selector Switch

INSTALLATION GUIDE

opEration

The H722LC is a current transducer that senses current (amperage) in any of three ﬁeld-selectable ranges: 0-10, 0-20, or 0-40 amperes. These ranges represent the maximum current that can be applied to the monitored conductor. The H722LC transforms the monitored current into a 0-5VDC output suitable for connection to building controllers or other appropriate data acquisition equipment. The H7 22LC requires no external power to generate its output.

notEs

For load currents greater than sensor maximum rating:

Use a 5 Amp (H681x series) Current Transformer (CT) as shown.

> 40A (H722LC max.)

H681x-5A CT

Wiring

calibration/scaling

Set the amperage range selector switch to a level appropriate for your load. The H723LC is available with three choices, 0-10, 0-20, or 0-40 Amps.

DANGER: 5A CTs can present hazardous voltages. Install CTs in accordance with manufacturer's instructions.

Terminate the CT secondary before applying current.

RISK OF EQUIPMENT DAMAGE

• 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. : 30A ÷ 4 Turns = 7.5 Amps max. in monitored conductor

Failure to follow these instructions can result in overheating

and permanent equipment damage.

For load currents less than sensor minimum rating:

Wrap the monitored conductor through the center hole and around the sensor body to produce multiple turns through the "window." This increases the current measured by the transducer.

• Controller must be programmed to account for the extra turns. e.g., if four turns pass through the sensor (as shown) the normal controller reading must be divided by 4.

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 othe r countries.

CAUTION

Scale the output as shown below.

troublEshooting

Problem Solution

No Reading at Controller • Conrm measured current is within the selected

range on the product.

• Check polarity of sensor output connections.