LE330C Ferrous Coating Thickness Gauge

The Ferrous Field Gauge That Set the Standard for the L600S

The LE330C was Kett’s electromagnetic coating thickness gauge for operators measuring non-magnetic coatings on magnetic substrates. It is no longer manufactured. The information below is provided for owners of existing units and for buyers identifying the current replacement.

What the LE330C Did

The LE330C used an electromagnetic probe to measure the thickness of paint, plating, lining, and other non-magnetic coatings on iron, steel, and other magnetic metals. Operators worked from one handheld unit with a single-contact probe that applied constant pressure for repeatable readings.

Built for ferrous substrates: Electromagnetic measurement of non-magnetic coatings on steel and iron, covering plated, painted, and lined parts.
Measurement range: Up to 1,500 µm, covering typical coating and plating work.
Four application memories: Stored calibration curves for repeated jobs, so an operator could recall a setup without recalibrating.
Removable-tip probe: Supplied with the LEP30C probe, whose removable plastic tip reached into tighter spots than fixed-tip designs.

Why the L600S Replaces It

The LE330C followed the LE300 series and was succeeded by the LE370 and LE373. The current production model for all of this work is the L600S. It keeps the ferrous measurement that defined the 330 and adds a wider measurement range, a 2.7 inch full color display, storage for 50,000 records, and USB-C output for modern data transfer.

Looking for the current model? The L600S Coating Thickness Gauge replaces the LE330C and the entire L3xx coating gauge line.

Weight	3.3 lbs
Dimensions	15 × 10 × 3 in
Measurement Principle	Magnetic Induction (Electromagnetic)
Measurement Range	0 to 1500 µm (0 to 60 mils)
Accuracy	±0.3 µm under 15 µm; ±2% at 15 µm and above
Resolution	0.1 µm under 100 µm; 1 µm at 100 µm and above
Response Time	Instant
Applications	Non-magnetic coatings on magnetic metal
Calibrations	4
Substrate Compatibility	Ferrous (iron, steel)
Probe Type	LEP30C (single contact point, constant pressure, cabled; removable plastic tip)
Display	LCD digital display
Features	Substrate calibration, foil calibration, upper/lower limit alarm, statistics (lot number, count, average, standard deviation, max/min), data memory, unit switching (µm/mils), auto power off
Data Memory Capacity	2,180 measurements
Operating Temperature	0 to 40 °C
Communications	RS-232C (printer / PC)
Power	4 x AA alkaline batteries (1.5 V)
Battery Life	Approximately 60 hours continuous
Dimensions	75 (W) × 140 (D) × 30 (H) mm
Weight	Approximately 0.45 kg (1 lb)
Standard Accessories	Calibration standards, leather carrying case, batteries, operating manual
Options	VZ330 printer, replacement calibration foils, replacement probe, AC adapter, leather carrying case
Warranty	One Year Total Care Warranty covering parts, labor, and specification compliance. Maintenance Agreements available.

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