KD-2446

Q: What target materials can the KD-2446 measure?

The KD-2446 works with both ferrous and non-ferrous targets, including aluminum, 304 stainless steel, and 4130 magnetic steels. The usable range depends on the sensor (9C or 5CM) and target material.

Q: What resolution does the KD-2446 achieve?

Static resolution reaches 12 microinches — better than 0.008% of the measuring range using a 5CM sensor on a 4130 steel target at mid-scale, mid-gain, and 12 Vdc input.

Q: Can the KD-2446 be used for process control?

Yes. It provides a high-speed (10 KHz) level-adjustable switched output with very low hysteresis (under 1% on ferrous targets), designed for process-control applications.

Non-contact high-precision proximity measuring system

Outstanding precision: static resolution to 12 microinches
Excellent performance with ferrous targets
Variable voltage input from 12 to 24 volts DC
Compact rugged electronics and sensors
Adjustable gain for up to 22 volts output (with 24 Vdc input)
High speed (10 KHz) level adjustable switched output for process control
Very low switching hysteresis, < 1% on ferrous targets
RoHS compliant
DIN rail configuration
CE Compliant

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Specifications

Resolution	<0.008% of measuring range using a 5CM sensor on a 4130 steel target at mid scale, mid gain, and 12 Vdc input.
Input voltage	Regulated 12 Vdc to 24 Vdc. Fuse limit input current from power source to 11 mA, 0.28 W maximum at full load.
Analog output	Voltage 0-22 Vdc with 24 Vdc input, 0-10 Vdc with 12 Vdc input. Current (full load) 4.2 mA maximum. Impedance 50 ohms. Frequency response 0-10 KHz (±3db).
Switched output	Load current 100 mA maximum AC or DC. Load voltage 30 V r.m.s., 42.4 V peak, or 60 Vdc. On resistance 30 ohms min / 50 ohms max. Switch point hysteresis 0.56% of full scale (9C sensor) and 0.97% (5CM sensor) using 24 Vdc input on 4130 steel. Frequency response 3.3 KHz.
Operating temperature range	Electronics +32°F to +150°F (0°C to +66°C)
Storage temperature range	Electronics -58°F to +212°F (-50°C to +100°C)
Thermal drift	Less than 0.22% per °C of full scale for sensor, electronics or system
IP rating	Sensor – IP67, Electronics – IP40

Sensors

Sensor	Target Material	Static Resolution
9C	Non-ferrous (aluminum)	0–0.175 in (0–4.45 mm)
9C	Non-magnetic (304 stainless)	0.025–0.200 in (0.64–5.08 mm)
9C	Magnetic steels (4130)	0.040–0.275 in (1.02–6.99 mm)
5CM	Non-ferrous (aluminum)	0–0.100 in (0–2.54 mm)
5CM	Non-magnetic (304 stainless)	0.010–0.125 in (0.254–3.18 mm)
5CM	Magnetic steels (4130)	0.015–0.150 in (0.38–3.81 mm)

Downloads

Certifications

DECLARATION OF CONFORMITY

Model Number
KD-2446 non-contact linear proximity/displacement measuring system

Conforms with Applicable Standards of:
Council Directive 89/336/EEC as amended by 92/31/EEC (EMC Directive)
Council Directive 73/23/EEC as amended by 93/68/EEC (LVD Directive)

EMC
EN 61326:1998 — Electrical Equipment for Measurement, Control and Laboratory Use – EMC Requirements

LVD
EN 61010-1:2001 — requires a limited-energy power supply per Article 9.3. The KD-2446 does not use or switch voltages above 60 VDC or 42.4 VAC peak (30 VAC rms).

Options

Sensor Cables

In-line cable connector splice
Many sensors come with integral sensor cables. Routing this cable in some applications is difficult and something you only want to do once. An in-line connector splice near the sensor allows for easy sensor replacement should the need arise.

Hermetic in-line connector splice
Some applications pass the sensor through a pressure boundary, most commonly a vacuum chamber wall. An in-line hermetic bulkhead splice is available for these applications.

Accessories

Cables, mounting hardware, calibration tools, and replacement parts are available. Accessories data sheet (PDF).

Frequently Asked Questions

What target materials can the KD-2446 measure?

The KD-2446 works with both ferrous and non-ferrous targets, including aluminum, 304 stainless steel, and 4130 magnetic steels. The usable range depends on the sensor (9C or 5CM) and target material.

What resolution does the KD-2446 achieve?

Static resolution reaches 12 microinches — better than 0.008% of the measuring range using a 5CM sensor on a 4130 steel target at mid-scale, mid-gain, and 12 Vdc input.

Can the KD-2446 be used for process control?

Yes. It provides a high-speed (10 KHz) level-adjustable switched output with very low hysteresis (under 1% on ferrous targets), designed for process-control applications.