- Measurement range: 80 mA to 30 kA
- 4 calibres
- Sensor length (clamping diameter): 45 cm, 80 cm or 1.20 m (Ø14 cm, Ø25 cm, Ø38 cm)
- Ingress protection of sensor/processing unit: IP67 / IP54
- Output signal: AC voltage
- Output via two-wire lead terminated by 2 x Ø 4 mm straight male banana safety connectors
- Power supply: 2 x 1.5V AA batteries or external µUSB type B 5V
- Battery life: 300 hours
- 1,000 V CAT IV
 Datasheet |
- Measurement range: 0.5 A to 3 kA
- 3 calibres
- Sensor length (clamping Ø): 80 cm (Ø25 cm)
- Ingress protection of sensor/processing unit: IP67 / IP54
- Output signal: AC voltage
- Output via 3 coaxial cables terminated by isolated BNC safety plugs
- Power supply: 2 x 1.5V AA batteries or external µUSB type B 5V
- Battery life: 500 hours
- 1,000 V CAT IV
| Datasheet |
The AmpFlex A100 series comprises 9 models of flexible sensors which can be connected directly to all types of multimeters, wattmeters, loggers, etc..
|
Datasheet
|
DigiFLEX current testers are equipped with flexible current sensors connected to a compact casing and can be used comfortably in any electrical cabinet for applications up to 600 V CAT IV. These stand-alone instruments are equipped with a 4,000-count digital display for direct current readings. Simple to set up thanks to the sensor-closing system, DigiFLEX current testers also benefit from the magnetized Multifix mounting system allowing them to be positioned anywhere. In addition, a strap is supplied to make it easier to stow the DigiFLEX.
- Measurement range: 80 mA to 3 kA
- 4 calibres
- Sensor length (clamping Ø): 17 cm, 25 cm or 35 cm (Ø4.5 cm, Ø7 cm, Ø10 cm)
- Ingress protection of sensor/processing unit: IP67 / IP54
- Output signal: AC voltage
- Output via two-wire lead terminated by 2 x Ø 4 mm straight male banana safety connectors
- Power supply: 2 x 1.5V AA batteries or external µUSB type B 5V
- Battery life: 300 hours
- 600 V CAT IV
| Datasheet |
- Measurement range: 0.5 A to 3 kA
- 3 calibres
- Sensor length (clamping Ø): 25 cm (Ø 7 cm)
- Ingress protection of sensor/processing unit: IP67 / IP54
- Output signal: AC voltage
- Output via 3 coaxial cables terminated by isolated BNC safety plugs
- Power supply: 2 x 1.5V AA batteries or external µUSB type B 5V
- Battery life: 500 hours
- 600 V CAT IV
| Datasheet |
The AmpFlex A100 series comprises 9 models of flexible sensors which can be connected directly to all types of multimeters, wattmeters, loggers, etc..
|
Datasheet
|
Main specifications:
- Measurement range from 500 mA AC to 3,000 A AC
- Single or bi-calibre
- Bandwidth of up to 1 MHz
- 3 clamping diameters: 45 mm, 70 mm and 100 mm
- 600 V CAT IV / 1,000 V CAT III
|
Datasheet
|
The MN series miniclamps are designed to measure alternating currents up to 10 kHz, on low-powered installations, from 10 mA~ to 240 A ~
|
Datasheet
|
Flexible Current Transformers
Flexible current transformers are measuring sensors that wrap around cables or conductors with large cross-sections and capture electric currents without disrupting the system. They are especially suited for confined spaces, bulky conductors or high currents and deliver precise readings even under demanding conditions.
FAQ
What types of flexible current transformers exist?
For example, Rogowski coils and flexible CT-cables with large diameter allowance. These can easily be applied around conductor loops or busbars.
What measurement ranges are commonly covered?
Current ranges may vary from a few amperes up to several thousand amperes; flexible models allow large diameters and high load capability.
What are the key advantages of flexible CTs over rigid clamps?
They offer easier installation on large conductors, higher bandwidth, less mechanical constraint and lower phase shift for fast current transients.
Which selection criteria should be considered?
Important factors include measurement accuracy, bandwidth, maximum current, conductor diameter, coil/cable length, connector type and calibration options.
How are flexible current transformers installed?
The coil must fully surround the conductor and be properly closed. Correct placement and adequate spacing are crucial for accurate measurements.
What are common error sources?
Errors may result from incomplete closure of the loop, conductor placed outside the coil, vibrations, temperature changes or electromagnetic interference.
Which current types can be measured?
Primarily AC; for DC measurement specialized models with integrators or DC-capable sensors are required.
How is data transfer handled?
Data can be read directly via measuring device or transmitted to data loggers through interfaces such as USB, Ethernet or wireless.
Where are flexible CTs typically used?
In power supply systems, industrial plants with high currents, power quality analysis, commissioning, maintenance and load-profile monitoring.
How is maintenance and calibration performed?
Regular visual inspection of the coil, checking the connection cable, functional testing and calibration according to manufacturer specifications ensure measurement reliability.