Veris Industries Hawkeye H720 User manual

TM
CURRENT MONITORING INSTALLATION GUIDE
Z201379-0A PAGE 1 01121
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.
Solid-Core Current Sensor, 4-20 mA Output,
VFD Compatible
Installer’s Specifications
Sensor Power 12-30 VDC, 30 mA max.
Amperage Range 0 to 200 A continuous
Insulation Class 600 VAC RMS
Output 4-20 mA
Zero Adjustment 3.5 to 4.5 mA
Span Adjustment 20 to 200 A, full scale
Frequency Range 10 to 80 Hz
Temperature Range -15° to 60°C (5°to 140°F)
Humidity Range 10-90% RH non-condensing
Accuracy 0.5% (combined linearity, hysteresis, and repeatability
Response Time 2 sec
Terminal Block Max. Wire Size 14 AWG
Terminal Block Torque (nom.) 4 in-lbs (0.45 N-m)
Agency Approvals UL 508, E150462
The product design provides for basic insulation only.
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
WIRING EXAMPLE
H720 TM 720
DIMENSIONS
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.
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 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. Adjust the Zero and Span settings. Span can be set at any point from 20A to 200A.
6. Secure enclosure and reconnect power.
0.75" Dia
(19 mm)
3.13"
(80 mm)
0.33"
(9 mm)
2.15"
(55 mm)
3.0"
(76 mm)
1.00"
(26 mm)
0.7" Dia
(19 mm)
Removable/Adjustable Mounting Bracket
Fan or Pump
CONTROLLER
GND
4-20mA IN
12 - 30VDC
Motor
VFD
CONTACTOR
AI
www.GlobalTestSupply.com
Find Quality Products Online at: [e-mail]

Z201379-0A PAGE 2 01121
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.
TM
INSTALLATION GUIDE
H720
OPERATION
The H720 is a current-sensitive transducer that monitors current (amperage) in
the conductor passing through it. The H720 has a 4-20 mA analog output that
corresponds to 0-20 A to 0-200 A owing through the conductor (adjustable Span
setting). The status output is suitable for connection to building controllers or
other appropriate data acquisition equipment operating at up to 30 volts. The H720
requires a 12-30 VDC power supply to generate its output.
TROUBLESHOOTING
Problem Solution
No Reading at Controller • Check Zero and Span settings.
• Check for control voltage at sensor (< 30 V)
• Check for amperage in monitored conductor (> 1 A)
4x
0.5A
DANGER: 5A CTs can present hazardous voltages.
Install CTs in accordance with manufacturer's instructions.
Terminate the CT secondary before applying current.
H68xx-5A CT
240A
300A:5A
> 200 A (Sensor max.)
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.
ZERO AND SPAN SETTING
< 1 A (Sensor Min.)
SENSED AMPS
4mA
20mA
0A 20 to 200A*
*Adjusted with Span Setting
SENSOR OUTPUT
WIRING OPTIONS
Option 1:
COM
COM
+
OUT + PWR
4-20 mA
IN PWR OUT (12-30 VDC)
Span Zero
Automation
Panel
H720
Option 2:
COM
COM 4-20 mA
IN
COM
+
OUT + PWR
+
Span Zero
External
Power
Supply
Automation
Panel
H720
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.
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 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.
www.GlobalTestSupply.com
Find Quality Products Online at: [e-mail]