Onset Onset CTV-E Manual
Split-core AC Current Transformer (CTV-x)
(AC Amperage to DC Voltage Transducer)
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
For use with HOBO® U12 and UX120-06M data loggers and
HOBO ZW data nodes
Specifications
Current Range
Accuracy with U12 ±4.5% of full scale (includes logger accuracy)
Accuracy with ZW ±4.0% of full scale (includes data node accuracy)
Accuracy with UX120-006M ±2.1% of full scale (includes logger accuracy)
Response time (from 10%
to 90% of amplitude):
Input Current AC current, sine wave, single phase 50 Hz or 60 Hz, load
Output 0-2.5 V DC
Voltage rating 600 V AC
Temperature rating
Construction Molded plastic housing for indoor use per UL508
Cable 1.8 m (6 ft.)
Window Size
Dimensions
CTV-A 0-20 AMPS AC
CTV-B 0-50 AMPS AC
CTV-C 0-100 AMPS AC
CTV-D 0-200 AMPS AC
CTV-E 0-600 AMPS AC
CTV-A approx. 440 milliseconds
CTV-B approx. 200 milliseconds
CTV-C approx. 100 milliseconds
CTV-D approx. 450 milliseconds
CTV-E approx. 490 milliseconds
power factor 0.5 to 1.0 lead or lag
CTV-A, CTV-B, CTV-C: -15° to 60°C (5° to 140°F),
CTV-D, CTV-E: -15° to 40°C (5° to 104°F)
CTV-A, CTV-B, CTV-C: 28 x 20 mm (1.1 x 0.8 in.)
CTV-D: 39 x 32 mm (1.54 x 1.26 in.)
CTV-E: 74 x 62 mm (2.92 x 2.46 in.)
CTV-A, CTV-B, CTV-C: 79 x 71 x 36 mm (3.1 x 2.8 x 1.4 in.)
CTV-D: 100 x 120 x 29 mm (3.92 x 4.72 x 1.14 in)
CTV-E: 135 x 150 x 28 mm (5.3 in. x 5.91 in. x 1.12 in.)
The CE Marki
all relevant directives in the European Union (EU)
ng identifies this product as complying with
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.
Failure to follow these instructions will result in death or serious injury.
• 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
Specification Note: For CE compliance, conductor shall be insulated according to IEC 61010-1:2001,
Installation Category III or equivalent. The product design provides for basic insulation only.
Using the CTV with the HOBO
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
logger or data node
DANGER
1. Insert the 2.5 mm plug of the CTV into an external input (black 2.5 mm jack) of a logger
or node.
2. To start a logger, select Launch from the Device menu in HOBOware®. To start a data
node, use HOBOnode Manager within HOBOware. See the HOBOware Help for more
details.
3. For a logger, select the appropriate channel in the Launch Logger window. For ZW data
nodes, select the sensor type (-A, -B, etc.) in the Configure Sensor pane that matches
the Current Transformer model number.
4. For a logger or data node, select the correct AC current range, which is provided on the
CTV label. Failure to select the correct range will result in inaccurate data. Do not
exceed the AC current rating of the CTV.
Installation
• The I-bar can be hinged open in order to install the CTV around an individual wire
carrying a single phase. Rotate the I-bar open (on the CTV-D and -E units, press in the
I-bar tabs to open). Place the wire in the CTV window and then snap the I-bar closed.
• The I-bar on the CTV-D and CTV-E units is fully removable for easy installation. Make
sure the I-bar is replaced in the proper orientation to ensure correct readings. The
contacts on the unit and I-bar are marked with matching notations.
• The CTV-A, -B, and -C units are provided with a snap-on mounting plate which can be
removed from the CTV and mounted separately. Mount the plate under the wire you
want to monitor and, once the cable is installed into the CTV, snap the CTV/wire
assembly onto the mounting plate.
• Remove the CTV from the plate by opening the CTV and sliding it off the plate or
gently rocking the CTV slightly and pulling up at the same time.
6225-F MAN-CTV
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