Veris H909 Installation Instructions

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

CURRENT MONITORING

INSTALLATION GUIDE

H909

909

Split-Core Current Switch, Adjustable Trip Point,

120VAC/DC Output

Installer’s Speciﬁcations

Sensor Power Induced from monitored current Insulation Class 600VAC RMS (UL) Frequency Range 50/60Hz Temperature Range -15° to 60°C (5° to 140°F) Humidity Range 10-90% RH non-condensing Amperage Range 2.5 - 135A Continuous Output N.O. 200mA@120VAC/DC, not polarit y sensitive Hysteresis 10% of setpoint, typical Output Resistance - O -State >1 MΩ Terminal Block Maximum Wire Size 14 AWG Terminal Block Torque (nominal) 4 in-lbs (0.45 N-m) Agency Approvals UL 508, IEC 61010-1: 2001 CAT III

The product design provi des for basic insulation only.

INSTALLATION

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

1. Locate a mounting surface for the removable mounting bracket that will allow the monitored conductor to pass through the center window when it is installed and that will keep the device at least 1/2” from any uninsulated conductors. Determine cable routing for the output connection, allowing wiring to reach the mounting location.

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.

WIRING EXAMPLE

CONTACTOR

Insulated Conductor

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.

MOTOR

CONTROLLER

Digital Input

Fan or Pump

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

3. Wire the output connections between the sensor and the controller (solid-state contac t).

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

5. Calibrate the sensor (see page 2) with the load running normally.

DIMENSIONS

Removable Mounting Bracket

1.0”

3.1”

(79 mm)

Ø = 0.3”

(8 mm)

1.1”

(26 mm)

(21 mm)

(70 mm)

3.0”

(76 mm)

(25 mm)

0.8”

2.8”

2.5”

(64 mm)

Bracket can be mounted on either side for added installation ﬂexibility.

Self-gripping

Iris

1.4”

(36 mm)

Use DIN Rail

Mounting clip

(Veris part

number AH01) to

mount on stan-

dard DIN rail.

H909

INSTALLATION GUIDE

OPERATION

The H909 is a current-sensitive switching device that monitors current (amperage) in the conductor passing through it. A change in amperage in the monitored conductor that crosses the switch (setpoint) threshold plus the hysteresis value will cause the resistance of the FET status output to change state, similar to the action of a mechanical switch. In this model, the setpoint is adjustable through the action of a twenty (20) turn potentiometer (see the CALIBRATION section). The status output is suitable for connection to building controllers or other appropriate data acquisition equipment operating at up to 120 volts. The H909 requires no external power supply to generate its output.

The H909 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.

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) when added safety is desired for a low current load on a high current source.

240A

> 135A (sensor max.)

CALIBRATION

Before beginning calibration, establish normal load conditions.

OK!

Then choose either A or B below.

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

OK!

1. Turn setpoint screw clockwise until Status OPEN LED turns ON.

2. Slowly turn the screw counter-clockwise until the Status CLOSED LED just turns ON.

Setpoint

Status Closed

OK!

STOP

Status

Open

Setpoint

1/4

STATUS

OK!

Setpoint

STOP

3.Turn the screw an additional 1/4 turn counter-clockwise for operational margin.

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

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

300A:

H68xx-5A CT

OK!

1.Turn setpoint screw counter-clockwise until Status CLOSED LED turns ON.

Setpoint

Status

Closed

STATUS

OK!

STOP

CAUTION

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. : 100A ÷ 4 Turns = 25 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 center window. This increases the current measured by the transducer.

Program controller to account for the extra turns. e.g., if four

< 2.5 A (Sensor Min.)

turns pass through the sensor (as shown) divide the normal controller reading 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 other count ries.

2. Slowly turn the setpoint screw clockwise until the Status OPEN LED just turns ON.

Status

Setpoint

Open

Setpoint

3. Turn the setpoint screw an additional 1/4 turn clockwise for

STOP

1/4

operational margin.

TROUBLESHOOTING

Problem Solution

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

• Check for control voltage at sensor (<120V)

• Check for amperage in monitored conductor (> 2.5A)

• Assure that sensor core mating surfaces are clean and

that the core clamp is completely closed

Setpoint screw has no stops The setpoint screw has a slip-clutch at both ends of its

Both LEDs are lit Setpoint screw is too far clockwise. See solution above.

travel to avoid damage. Twenty turns CCW will reset the sensor to be most sensitive. Repeat calibration above.