 The LEM ITP and LEM ITZ Ultrastab Current Transducers are high accuracy, high resolution current measuring device based on Fluxgate detection of the zero flux condition in a magnetic toroid encompassing the primary current.
The ITP Ultrastab Current Transducer System replaced the discontinued Danfysik ACP 860R. The ITZ Ultrastab Current Transducer extends the ITP current range of 5000A maximum to 24000A.
Features
- Bandwidth DC to 500kHz
- Linearity better than 1ppm
- Absolute calibration traceable to NIST
- Temperature coefficient less than 0.1 ppm/°C
- Resolution 0.05ppm of full-scale
- Bipolar ± 1A / ± 2A / ± 3A full scale output bandwidth or Bipolar ± 10V full scale output option
- Low noise reflected on the primary circuit
- Very low insertion impedence and power loss compared to resistive shunts
The ITP and ITZ Ultrastab Current Transducers can be configured as a very low noise, multi-channel system by setting the first unit of a daisy chain as the synchronization master and the following units as synchronization slaves to insure all units have the same clock.
| Part Number† |
Primary Current |
Bandwidth |
Output† |
Aperature Diameter |
| Programmable |
ITP 600-SPR,
ITZ 600-SPR |
40-600A,
in increments of 20A |
0-500kHz |
± 1A |
25mm |
ITP 2000-SPR,
ITZ 2000-SPR |
125-2000A,
in increments of 125A |
0-80kHz |
± 1A |
50mm |
| ITP 5000-SPR |
2500-5000A,
in increments of 250A |
0-300kHz |
± 2A |
140mm |
| Non-Programmable |
ITP 2000-S/SP1,
ITZ 2000-S |
2000A |
0-300kHz |
± 2A |
50mm |
| ITZ 5000-S |
5000A |
0-80kHz |
± 2A |
140mm |
| ITZ 10000-S |
10000A |
0-20kHz |
± 2A |
100mm |
| ITZ 16000-S |
16000A |
0-3kHz |
± 2A |
150mm |
| ITZ 24000-S |
24000A |
0-2kHz |
± 3A |
150mm |
| † Available as -SBPR and -SB models with ±10V Output. |
Applications
- Test and calibration of current sources and current sensors
- Current measurement for precision power analysis
- Absolute current standard reference
- Differential current measurement
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