Notice
Split-core AC Current Transformer (CTV)
3
Using the CTV with the HOBO Logger
•
This product is not intended for life or safety applications.
1. Insert the 2.5 mm plug of the CTV into an external input (black
2.5 mm jack) of a U12 family logger.
•
Do not install this product in hazardous or classified locations.
•
The installer is responsible for conformance to all applicable
codes.
2. To start the logger, go to the Launch function within HOBOware
®
software. For more details on software, please refer to the
software manual.
•
Mount this product inside a suitable fire and electrical enclosure.
3. Select the correct AC current range in Software.
The current range of the CTV 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
Note
: The software does not use specific part numbers (i.e. CTV-
A) but refers to Current Transformers (CT-A through -E) only.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
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.
4. In the Launch screen, be sure to enable the appropriate channel
and select the range within the
Channels and Sensors
selection
window.
Installation
•
The I-bar can be hinged open in order to install the CTV around
an individual wire carrying a single phase.
1) Rotate the I-bar open (on the CTV-D and -E units, press in the
I-bar tabs to open, 2) place the wire in the CTV window, 3) 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.
•
You can 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.
2
Split-core AC Current Transformer (CTV)
