NK TECHNOLOGIES AT SERIES Instructions

Specifi cations
Current Measurement To 0-1600A
300V CAT III
Output Signal 4-20mA, Loop Powered
Output Limit 23 mA
Accuracy 1.0% FS
Measurement True RMS or Average Responding
(See Model Number Key)
Frequency Range ATR: 10/400 Hz
AT: 50/60 Hz, Sinusoidal
Isolation Voltage 3kV (Board level)
Response Time 600 ms (to 90% of step change)
Power Supply 24VDC nominal, (12-40VDC)
Case UL 94V-0 Flammability rated
thermoplastic
Environmental -4 to 122°F (-20 to50°C)
0-95% RH non-condensing
Pollution degree 2
Altitude to 2000 meters
Overvoltage category II
Approvals Designed to meet UL508
CE Compliance soon
Caution! Risk of electric shock or per-
sonal injury
Safe operation can only be guaranteed if the
transducer is used for the purpose for which
it was designed and within the limits of the
technical specifi cations. When this symbol
is used, it means you should consult all
documentation to understand the nature of
potential hazards and the action required to
avoid them.
Caution! Risk of hazardous voltage
When operating the transducer, certain
parts may carry hazardous live voltage (e.
g. primary conductor, power supply). The
transducer should not be put into service if
the installation is not complete.
Input Maximums
----------MAXIMUM AMPS------------
MODEL RANGE 1 SEC 60 SEC
AT/ATR-LS All 6400A 1920
Model Number Key
AT R 10 - 420 - 24L - LS
RANGE
8 - 800 A
10 - 1000 A
12 - 1200 A
16 - 1600 A
Measurement
R - True RMS
(Blank) - Average Responding
SENSOR TYPE:
AT - AC current sensor, 4-20 mA output
loop powered
Know Your Power
Other NK Technologies Products Include:
AC & DC Current Transducers
AC & DC Current Operated Switches
1I & 3IPower Transducers
Current & Potential Transformers (CTs&PTs)
CONT.
1600A
Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com
CASE STYLE
LS- Large Split Core
POWER SUPPLY:
24L- 24VDC Loop Powered
OUTPUT:
420 - 4-20mA
INSTRUCTIONS
AT & ATR -LS SERIES
AC Current Transducers
Large Split Core, 4-20mA Output
True RMS or Average Responding
Quick "How To" Guide
1. Pop top section of sensing ring off by carefully pry-
ing clips away and lifting the section vertically.
2. Mount the sensor to a DIN rail or surface using
screws in corners if needed.
3. Place conductor inside ring and replace top section
until the clips snap fi rmly closed.
4. Connect output wiring.
A. Use up to 14 AWG 75/90°C copper wires.
B. Make sure output load does not exceed product
specifi cations.
C. Connect 24 VDC power supply and load in
series. Observe polarity.
5. Verify that the display or controller is reading the
output correctly (4mA)
6. Energize the monitored circuit.