Eddy-Current Sensors

ECL150 & ECL150e Multi-Channel
Eddy-Current Displacement Sensor

Up to eight channels of high-performance displacement sensing in a small package.

Features | Specifications Probes & Ranges | Mechanical

Survey Response

“I tested your Eddy Current sensors against 3 other brands for thermal stability & you were best by far. Service and support have always been great. Lion Precision is always very flexible and willing to meet our needs as they change.”

Performance

Linearity: ±0.2%
Resolution (Typical, Dependent on Probe and Range)
- ECL150 Nonferrous: 0.006% RMS
- ECL150 Ferrous: 0.008% RMS
- ECL150e: 0.3 µm RMS or higher
Selectable Bandwidth (kHz): 0.25, 1, 10, 15
±5 VDC Outputs

Features

1-8 Channels
Small Volume Package
Low Power/Heat
Range Indicating LEDs
Probes can be ordered as vacuum compatible
Available without enclosure
CE Compliant

Life-Cycle Status: Active

Export Requirements

Because of high resolutions, exports of the ECL150 may require an export license. The ECL150e has different resolution specifications and can ship without export license delays.

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Specifications

Typical specifications for standard targets and probes. Actual values depend on probe, target, and calibration. Specifications assume a target area at least three times the diameter of the probe.

Resolution: RMS, Typical Dependent on probe and range. See Range Table for resolution specifics.	ECL150	0.006% RMS (Nonferrous); 0.008% RMS (Ferrous)
	ECL150e	Greater of 0.3 µm or 0.006% RMS (Nonferrous); 0.008% RMS (Ferrous)
Linearity		±0.2% of Range
Error Band		±0.4% of Range
Maximum Bandwidth		15 kHz
Driver Temperature Drift (15°C-50°C) Typical. See Probe/Range chart for details.	nonferrous	±0.01% F.S./°C
	ferrous	±0.01% F.S./°C
Probe Temperature Drift (15°C-65°C) Typical. See Probe/Range chart for details.	nonferrous	±0.01% F.S./°C
	ferrous	±0.01% F.S./°C
Analog Output		±5 VDC, 0 Ω, 15 mA
Input Power		12 to 24 VDC, 1-2 Channels – 2.5 W 3-4 Channels – 3.5 W 5-6 Channels – 4.5 W 7-8 Channels – 5.5 W
Driver Operating Environment		4°C-50°C IP64
Probe Operating Temperatures Standard Probes come with PUR (Polyurethane) jacketed cables. High Temperature Probes have FEP jackets. Other temperature ranges may be possible. Contact us for more information. Standard Probes: IP67 High Temperature Probes: IP63		U3 Probe	Standard Probe (PUR Cable): -25°C to +125°C (Available with optional FEP cable) High Temperature Version Not Available
		U5-18 Probes	Standard Probes: -25°C to +125°C High Temperature Probes: -25°C to +200°C
		U25-50 Probes	Standard Probes: -25°C to +125°C High Temperature Probes: -25°C to +175°C

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Probes, Ranges, and Resolutions (Probe Dependent)

Larger Probe Diameter = Larger Range
Target: Flat, Diameter > 3 X Probe Diameter
or custom calibration required

Probes can be ordered as vacuum compatible. custom probes are available.

Ranges, Resolutions, Thermal Drift

Listed specifications are for standard target materials: Nonferrous - Al 6160, Ferrous - 4140 Steel.

Range mm inch	Near Gap mm inch	Probe	Target Type	ECL150 Resolution (RMS)* nm µinch				ECL150e Resolution (RMS)* nm µinch				Thermal Drift** ±%F.S./°C
Range mm inch	Near Gap mm inch	Probe	Target Type	250 Hz	1 kHz	10 kHz	15 kHz	250 Hz	1 kHz	10 kHz	15 kHz	Probe	Driver
0.50 0.020	0.05 0.002	U3	nonferrous	35 1.4	40 1.8	60 2.4	65 2.6	300 12	300 12	300 12	300 12	0.04	0.04
0.50 0.020	0.05 0.002	U3	ferrous	60 2.4	80 3.2	100 4.0	110 4.4	300 12	300 12	300 12	300 12	0.08	0.08
1.25 0.050	0.25 0.010	U5	nonferrous	75 3.0	100 4.0	140 5.5	150 6.0	300 12	300 12	300 12	300 12	0.04	0.10
1.25 0.050	0.25 0.010	U5	ferrous	130 5.0	180 7.1	240 9.5	260 10	300 12	300 12	300 12	300 12	0.10	0.10
2.00 0.080	0.35 0.015	U8	nonferrous	75 3.0	100 4.0	135 5.5	145 6.0	300 12	300 12	400 16	400 16	0.02	0.04
2.00 0.080	0.35 0.015	U8	ferrous	100 4.0	125 5.0	180 7.0	200 8.0	300 12	300 12	400 16	400 16	0.04	0.04
3.50 0.140	0.60 0.025	U12	nonferrous	120 4.8	160 6.3	210 9.0	240 10	300 12	300 12	400 16	400 16	0.02	0.01
3.50 0.140	0.60 0.025	U12	ferrous	150 6.0	200 8.0	250 10	300 12	300 12	300 12	400 16	400 16	0.03	0.01
5.00 0.200	0.75 0.030	U18	nonferrous	170 7.0	240 10	300 12	340 14	400 16	400 16	500 20	500 20	0.01	0.01
5.00 0.200	0.75 0.030	U18	ferrous	230 9.0	300 12	390 16	450 18	400 16	400 16	500 20	500 20	0.01	0.01
8.00 0.320	1.25 0.050	U25	nonferrous	330 13	430 17	600 24	650 26	400 16	400 16	550 22	600 24	0.01	0.01
8.00 0.320	1.25 0.050	U25	ferrous	360 15	480 20	650 26	750 30	400 16	400 16	600 24	650 26	0.01	0.01
12.5 0.500	1.50 0.060	U38	nonferrous	600 24	750 30	1000 40	1200 48	500 20	500 20	700 28	750 30	0.01	0.01
12.5 0.500	1.50 0.060	U38	ferrous	650 26	800 32	1100 44	1300 52	500 20	500 20	750 30	800 31	0.02	0.01
15.0 0.600	2.00 0.080	U50	nonferrous	750 30	1000 40	1300 52	1400 56	600 24	600 24	750 30	800 31	0.01	0.01
15.0 0.600	2.00 0.080	U50	ferrous	800 32	800 32	1400 55	1500 60	600 24	600 24	850 33	900 35	0.01	0.01
* Peak-to-Peak values are approximately 8-10 times RMS values In high EMI environments, output noise may rise to 0.060 VRMS (0.6% resolution) and DC shift of up to 0.2 VDC. **Thermal Drift specified at: Probe: 15°C - 65°C; Driver: 15°C - 50°C