Ref: KD-2306 | OEM-2306

1-channel eddy current displacement sensor - 0.5 to 60 mm - 50 kHz - Analogue output

Non-contact eddy current measurement system
Including: sensor + cable + electronics
Measuring range: 0.5 mm to 60 mm
Bandwidth: 0 to 50 kHz
Resolution: 0.1 to 6µm depending on the measuring range
Voltage output: 0-10 VDC, +/- 5 VDC, 4-20mA
Power supply: 15-30 VDC
IP67 sensor, insensitive to oil, dust, humidity, magnetic fields
Electronics: IP40, DIN rail mounting
Operating temperature (sensor + cable): standard: -67 to 221°F, cryogenic version: -320.8°C to 401°C
RoHS and CE

Non-contact displacement/position sensor

Principle of operation

The eddy current sensor KD-2306 measures displacements, positions or distances, without contact, between the sensor head and a magnetic or non-magnetic metal part, over measuring ranges from 0.5 to 60 mm. The measurement is characterised by an excellent resolution (down to 0.1µm), a very high frequency response (50 kHz) and is insensitive to the environment (wet, electro-magnetic, cryogenic, cutting oil, etc.). The analogue output signal (DC voltage or 4-20mA) is compatible with any analogue input from a PC, PLC or data acquisition system.

Calibration / adjustment

Calibration of the KD-2306 is performed at the factory, with the probe and the metal target of the application, under the measurement conditions (temperature, supply voltage, etc.). Optionally, calibration points can be specified to optimise accuracy. When installing the system, or when using a new metal target, the gain and offset of the amplifier can be adjusted to optimise the linearity of the response. Shims and micrometers for this purpose are optional.

More information on the principle of Eddy Current measurement: here

OEM version

An OEM version of the KD-2306 is available for integration into machine tools and test benches. The sensors are identical. The electronics are in the form of a printed circuit board (PCB) for direct integration into the application to be equipped. See Documentation

Setup

The KD-2306 system consists of a probe with integrated cable (29 models available) and DIN rail mounted conditioning electronics.

Version standard: [-67/221°]

Sensor	2UM	2U	1S	1SM	1U1	1SU	5U	2S1	2UB1	2S	3U1
Range	0.5	0.5	1.0	1.0	1.0	1.3	1.3	2.0	2.0	2.5	3.0
Magnetic/non-magnetic target	-/x	x/-	x/-	-/x	x/-	x/-	x/-	x/x	x/x	x/x	x/-
Static resolution [µm]	0.1		0.1	0.1	0.1	0.1		0.2	0.2	0.3
Shielded (O/N)	-	-	x	x	-	-	-	-	x	-	-
Cable length [m]	2	2	3	3	3	3	2	3	3	3	3

Sensor	4S1	4SB	6U1	6C	8C	15U1	10CU	30U1	12CU	60U1
Range	4.0	4.0	6.0	6.4	12.7	15.0	24.4	30.0	50.8	60.0
Magnetic/non-magnetic target	O/O	O/O	x/x	O/O	x/x	O/O	O/O	O/O	O/O	O/O
Static resolution [µm]	0.4	0.4	0.6	0.6	1.3	1.5	2.5	3.0	5.0	6.0
Shielded (O/N)	x	x	-	x	x	-	-	-	-	-
Cable length [m]	3	3	3	4,5	4,5	3	4,5	3	4,5	2

Cryogenic versions: [-320.8/399.2°]

Sensor	1UEP	1SUM	9U	12U	16U	26U	38U	51U
Range	1.0	1.3	4.0	5.0	8.0	12.0	20.0	25.0
Magnetic/non-magnetic target	-/x	-/x	x/-	x/x	x/x	x/x	x/x	x/x
Static resolution [µm]	0.1	0.1
Shielded (O/N)	-	-	-	-	-	-	-	-
Cable length [m]	3	3	2	2	2	2	2	2

Non-magn: non-magnetic target type aluminium, stainless steel
Magn: magnetic target type steel 4130