H709HV

H709HV
INSTALLATION GUIDE
CURRENT MONITORING
TM
TM
709HV
Adjustable Solid-Core Current Switch
with 250 VAC/DC Output
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
• Only install this product on insulated conductors.
Failure to follow these instructions will result in death or serious injury.
A qualified 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
•
•
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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
SPECIFICATIONS
Sensor Power
Amperage Range
Status Output Ratings
Insulation Class
Frequency
Hysteresis
Temperature Range
Humidity Range
Off State Resistance
On State Resistance
Terminal Block Wire Size
Terminal Block Torque
Agency Approvals
Installation Category
Induced from monitored conductor
1 to 135A Continuous
N.O. [email protected]/DC, not polarity sensitive
600VAC RMS
50/60 Hz
10% typical
-15° to 60° C (5° to 140° F)
10-90% RH non-condensing
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)
CE EN 61010-1
Cat III, pollution degree 2
The product design provides for basic insulation only.
INSTALLATION
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 conductor 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.
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
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 (see page 2) with the load running normally.
DIMENSIONS
Removable/Adjustable Mounting Bracket
0.9"
(23 mm)
CONTACTOR
0 0.7"
(19 mm)
3.0"
(75 mm)
DDC CONTROLLER
DI
2.8"
(68 mm)
Fan or Pump
1.1"
(27 mm)
Motor
Two pairs of terminals are used for the switched output. Each pair is one connection, and both
terminals in that pair are internally connected together. The connections are not polarity sensitive.
Z205233-0E
PAGE 1
0.2” x 0.15”
slot (2x)
3.8"
(95 mm)
4.2"
(106 mm)
©2013 Veris Industries USA 800.354.8556 or +1.503.598.4564 / [email protected]
Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Veris, Aerospond, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.
02131
INSTALLATION GUIDE
H709HV
TM
PRODUCT OVERVIEW
CALIBRATION
The H709HV 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 threshold (trip point) plus the hysteresis value
causes the resistance of the status output to change state, similar to the action of a
mechanical switch. In this model, the trip point 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 250 volts. The H709HV requires no external power
supply to generate its output.
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.
240A
> 135 A (sensor max.)
Before beginning calibration, establish normal load conditions.
OK!
OK!
A
Then choose either A or B below.
A. To monitor under-current (belt loss, coupling shear, status)
1. Turn setpoint screw
counter-clockwise
until Status Open LED
turns on.
Setpoint
2. Slowly turn the screw
clockwise until the
Status Closed LED just
turns on.
3. Turn the screw
an additional 1/4
turn clockwise for
operational margin.
Status
Closed
Status
Open
Setpoint
Status
Closed
Status
Open
Setpoint
¼
Status
Closed
Status
Open
B. To monitor over-current (mechanical problems, seized impeller)
300A:5A
4A
H681x-5A CT
1. Turn setpoint screw
clockwise until Status
Closed LED turns on.
Setpoint
Status
Open
2. Slowly turn the setpoint
DANGER: 5A CTs can present hazardous voltages.
screw counter-clockwise
Install CTs in accordance with manufacturer's instructions.
until the Status Open LED
Terminate the CT secondary before applying current.
just turns on.
CAUTION
RISK OF EQUIPMENT DAMAGE
• Derate the product’s maximum current for the number of turns
through the sensing window using the following formula.
3. Turn the setpoint screw
an additional 1/4 turn
counter-clockwise for
operational margin.
Status
Closed
Setpoint
Status
Open
Status
Closed
Setpoint
¼
Status
Open
Status
Closed
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.
Problem
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), then
divide the normal controller
reading by 4.
Z205233-0E
PAGE 2
< 1 A (Sensor Min.)
0.5A
TROUBLESHOOTING
Solution
No reading at controller
• Check for control voltage at sensor (<250 VAC, <1.0 A)
• Check for amperage in monitored conductor (>1 A)
• Verify that the setpoint is not above operating amps by
turning the setpoint screw counter-clockwise (up to 20
turns) until the contacts close (Status Closed LED turns
on). Resume calibration from the beginning.
Setpoint screw has no stops
The setpoint screw has a slip-clutch at both ends of
its travel to avoid damage. Turn the setpoint screw
twenty full turns counter-clockwise Repeat calibration.
Both LEDs are lit
Setpoint screw is too far clockwise. Turn the setpoint
screw twenty full turns counter-clockwise Repeat
calibration.
Output always appears to be
shorted
Verify that output is measured between the two pairs of
terminals, rather than across one pair.
4x
©2013 Veris Industries USA 800.354.8556 or +1.503.598.4564 / [email protected]
Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Veris, Aerospond, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.
02131
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