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NK Technologies ATR Series Current Transducers
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NK Technologies ATR Series
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Features:
- True RMS Output
True RMS technology is accurate on distorted waveforms like VFD or SCR outputs.
- Jumper Selectable Ranges
- Reduces inventory.
- Eliminates zero and span pots.
- Isolation
- Output is magnetically isolated from the input for safety.
- Eliminates insertion loss (voltage drop).
- UL, CUL and CE Approval
Accepted worldwide
Applications:
- VFD Controlled Loads
VFD output indicates how the motor and attached load are operating.
- SCR Controlled Loads
Accurate measurement of phase angle fired or burst fired (time proportioned) SCRs. Current measurement gives faster response than temperature measurement.
- Switching Power Supplies and Electronic Ballasts
True RMS sensing is the most accurate way to measure power supply or ballast input power.
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| Model |
Description |
List Price |
Sale Price |
| ATR0-420-24L-FT |
0-2 & 0-5 Amp Ranges, Top Terminal, 4-20 mA True RMS, Output: 4-20 mA True RMS |
$190.00 |
| $169.10 |  |
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| ATR1-420-24L-FT |
0-10, 0-20, 0-50 Amp Ranges, Top Terminal, 4-20 mA True RMS, Output: 4-20 mA True RMS |
$180.00 |
| $160.20 | |
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| ATR2-420-24L-FT |
0-100, 0-150, 0-200 Amp Ranges, Top Terminal, 4-20 mA True RMS, Output: 4-20 mA True RMS |
$180.00 |
| $160.20 | |
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| ATR3-420-24L-FL |
0-375, 0-500, 0-750 Amp Ranges, Top Terminal, 4-20 mA True RMS, Output: 4-20 mA True RMS |
$285.00 |
| $253.65 | |
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| ATR4-420-24L-FL |
0-1000, 0-1333, 0-2000 Amp Ranges, Top Terminal, 4-20 mA True RMS, Output: 4-20 mA True RMS |
$365.00 |
| $324.85 | |
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| ATR0-420-24L-SP |
0-2 & 0-5 Amp Ranges, 4-20 mA True RMS, Output: 4-20 mA True RMS |
$230.00 |
| $204.70 | |
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| ATR1-420-24L-SP |
0-10, 0-20, 0-50 Amp Ranges, 4-20 mA True RMS, Output: 4-20 mA True RMS |
$220.00 |
| $195.80 | |
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| ATR2-420-24L-SP |
0-100, 0-150, 0-200 Amp Ranges, 4-20 mA True RMS, Output: 4-20 mA True RMS |
$220.00 |
| $195.80 | |
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ATR transducers from NK Technologies combine a current transformer and a True RMS signal conditioner into a single package. The ATR Series provides True RMS output on distorted waveforms found on VFD or SCR outputs and on linear loads in "noisy" power environments. Available in a solid or split core case.
Specifications:
| Output Signal |
4-20mA, Loop-powered, True RMS |
| Output Limit |
23mA |
| Accuracy |
0.8% FS |
| Response Time |
600mS (to 90% step change) |
| Frequency Range |
10-400Hz |
| Power Supply |
24VDC Nominal, 40VDC Maximum |
| Isolation Voltage |
UL listed to 1,270VAC, tested to 5KV |
| Input Ranges |
Field selectable from 0-200A (see Ordering Information). Consult factory for custom ranges. |
| Sensing Aperture |
FT Models: 0.75" (19mm) dia.
SP Models: 0.85" (21.5mm) sq. |
| Case |
UL 94V-0 Flammability rated |
| Environmental |
-4 to 122°F (-20 to 50°C), 0-95% RH, non-condensing |
| Listings |
UL 508 Industrial Control Equipment (USA & Canada), CE (Pending) |
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