Capacitive Sensors: Probes

Probe Sensing Area

The probe sensing area determines the probe's measurement range.

Larger Sensing Area = Larger Range

Sensing areas are indicated with a letter designation and are combined with the probe body style to form a probe model number such as C23-C (C23 body style and C size sensing area).

Target area diameter must be 130% of the sensing area diameter or custom calibration will be required.

Probe Operating Temperature

4°C-50°C; 40°F-120°F

Probes can be used at colder temperatures, including cryogenic temperatures, when condensation (frost) is prevented and the system is specially calibrated for the target temperature range.

Probe Body Styles

1 mil = 0.001"

Style	Body | Length		Cable Exit	Model	Size	Sensing Areas - Diameters	Ranges
							CPL190 CPL290 µm mils	Compact Driver µm mils	CPA100 µm mils
8 mm Cylindrical		40mm	Straight	C23	8mm Available with B, or C Sensing areas	B - 3.2 mm	50, 500, 1250 2, 20, 50	50, 500 2, 20	500, 1250 20, 50
		23mm	Straight	C24		C - 1.7 mm	10, 50, 250, 500 0.4, 2, 10, 20	50, 250 2, 10	500, 1250 20, 50
5 mm Cylindrical		28mm	Straight	C3	5mm Available with D, E, or F Sensing areas	D - 2.0 mm	10, 50, 250, 500 0.4, 2, 10, 20	50, 250 2, 10	250, 500 10, 20
		16mm	Straight	C5		E - 0.8 mm	25, 100 1, 4	25, 100 1, 4	100 4
		16mm	90°	C6		F - 0.5 mm	10, 50, 80 0.4, 2, 3	—	50, 80 2, 3
3/8" Cylindrical		1.6"	Straight	C1	3/8" Available with A Sensing Area	A - 0.220"	50, 500, 2000 2, 20, 80	50, 500 2, 20	500, 2000 20, 80
		0.75"	Straight	C2
Rectangular			Straight	R2	2.25" x 1.75" Available with H Sensing area	H - 0.750"	2500, 6000 100, 250	2500 100	2500, 6000 100, 250