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CURRENT MONITORING
INSTALLATION GUIDE
TM
H800HV
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.
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
BUILDING AUTOMATION
CONTROLLER
POWER
SOURCE
DI
TM
800HV
Split-Core Current Switch,
Fixed Trip Point
Installer’s Specifications
Sensor Power
Insulation Class
Frequency Range
Temperature Range
-40°
Humidity Range
Output
Amperage Range
Terminal Block Maximum Wire Size
Terminal Block Torque (nominal)
Agency Approvals
Induced from monitored current
600VAC RMS (UL)
-40° to 50°C (-40° to 122°F) (to 200A);
10-90% RH, non-condensing
N.O. 500mA@250VAC/DC, polarity insensitive
0.75-200A Continuous
14 AWG
4 in-lbs (0.45 N-m)
UL 508 open device listing
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 1/2” from any uninsulated conductors.
Determine cable routing for the output 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 and relay between the sensor and the controller
(solid-state contact) and external power supply.
4. Route the conductor through the sensor’s center window and slip the assembly into the mounting bracket.
5. Secure enclosure and reconnect power.
DIMENSIONS
Removable/Adjustable Mounting Bracket
ø 0.7"
(18 mm)
0.9"
(23 mm)
DI
2.8" *
(71 mm)
1.7
(43 mm)
0.4” x 0.2”
Slot (x2)
1.1" *
(27 mm)
POWER
SOURCE
2.3"
(58 mm)
UNIT VENT HEATER
Z201590-0F PAGE 1 ©2011 Veris Industries USA 800.354.8556 or +1.503.598.4564 / [email protected] 09112
Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.
H800HV
TM
OPERATION
The H800HV 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 fixed at 750mA AC max. The status output is suitable for connection to building controllers or other appropriate data acquisition equipment with inputs up to 250 volts. The H800HV requires no external power supply to generate its output.
INSTALLATION GUIDE
TROUBLESHOOTING
Problem
No Reading at Controller
Solution
• Check for control voltage at sensor (<250V)
• Check for amperage in monitored conductor (> 0.75A
@ 60Hz)
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 range is desired for a low current load on a high current source.
> 200A (Sensor max.)
300A: 5A
H68xx-5A CT
DANGER: 5A CTs can present hazardous voltages.
Install CTs in accordance with manufacturer's instructions.
Terminate the CT secondary before applying current.
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 window and around the sensor body to produce multiple turns through the center window. This increases the current measured by the transducer.
< 0.75 A (Sensor Min.) Program controller to account for the extra turns. e.g., if four turns pass through the sensor
(as shown) divide the normal controller reading by 4.
0.5A
4x
Z201590-0F PAGE 2 ©2011 Veris Industries USA 800.354.8556 or +1.503.598.4564 / [email protected] 09112
Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.
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