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KJT70 Instant Online Composition Analyzer Sensor Head

Online NIR Composition Meter — Instant, Non-Contact, Multi-Component

Measure moisture, protein, fat/oil, and other organic components in real time, directly on your process line. The sensor head reads product from above with no contact and no sampling, turning periodic lab checks into continuous process data.

  • Multi-component measurement: Filter-based NIR reads organic components simultaneously, refreshed every 0.1 seconds.
  • No controller required: PC software is standard and up to 50 calibrations store on the sensor head — the dedicated controller is optional.
  • Built for the plant floor: Cast aluminum dust- and drip-resistant housing, air-purge hood, and an optional cooling fan for environments up to 65°C.
  • Feeds your control system: 4–20 mA analog output plus RS-485 and RS-232C connect directly to a PLC, recorder, or PC.

Contact Kett for Pricing

Description

Instant Composition Data, Straight from Your Process Line

Lab composition testing tells you what your product was — the KJT70 tells you what it is right now. Mounted above the process line, this online near-infrared composition meter reads moisture, protein, fat/oil, and other organic components as product passes beneath it, with no contact, no sampling, and no interruption to production.

Solving Real Process-Control Problems

  • Lab results arrive too late: Non-contact NIR measurement reads the process continuously, updating the output every 0.1 seconds so a drifting line is corrected before it produces off-spec product.
  • One line runs many products: Up to 50 calibrations are stored on the sensor head itself, so changeovers are a channel selection, not a recalibration. Unlimited calibrations can be developed and managed in Tracker software on a connected PC.
  • The plant floor is a hostile place: The cast aluminum housing is dust- and drip-resistant, an air-purge hood keeps the optics clear, and an optional cooling fan extends operation into environments up to 65°C.
  • Instruments fail silently: Built-in self-diagnostics monitor reflectance, motor rotation, internal temperature, and channel status — and can be checked remotely, so a problem announces itself before it costs you product.

Two Configurations

The KJT70 ships in a five-filter and a seven-filter configuration, set at the factory. The seven-filter version carries additional measurement wavelengths for more demanding multi-component applications. Contact Kett to match the configuration to your product.

Built for Unattended Process Duty

The KJT70 measures from approximately 170 mm above the product with no controller required — PC software is standard, and a dedicated controller remains available as an option. Output feeds your control system directly over 4–20 mA, with RS-485 and RS-232C for configuration and data. Temperature compensation holds readings stable as conditions change, and the ceiling-mount design keeps the sensor out of the product path entirely. Backed by a One Year Total Care Warranty covering parts, labor, and specification compliance, with Maintenance Agreements available.

Need finer resolution on your process line? The KJT700 Online NIR Composition Meter measures to 0.001% on the same open-line platform, with expanded simultaneous component coverage.

Need to resolve a total into its individual constituents? The BSR1700 Online NIR Composition Analyzer scans the full NIR spectrum, separating combined values — multiple oil types, multiple alcohol types — into individual percentages that fixed filters cannot distinguish.

Additional information

Weight 15 lbs
Dimensions 12 × 16 × 18 in
Measurement Principle

Near-infrared (NIR) reflectance

Resolution

0.01%

Reproducibility

0.01%

Precision

0.01%

Response Time

Approximately 2 seconds (analog)

Refresh Rate

0.1 seconds (display: 0.2 seconds)

Measurable Components

Ash, Caloric value, Fat/oil, Moisture, Protein, Starch, Water activity

Form Factor

Online

Measurement Diameter

Approximately ø40 mm at 170 mm

Measurement Distance

Approximately 170 mm

Light Source

Tungsten lamp

Display

7-segment LED (channel number, measurement value, error codes)

Measurement Modes

Continuous

Compensation Functions

Temperature compensation, offset compensation; humidity compensation (optional)

Features

Self-diagnostic functions: low reflectance, motor rotation, internal temperature, channel setting, calculation, and RAM errors

Calibration Curves Available

Up to 50 on-board; unlimited via Tracker software

Operating Temperature

0–40°C, non-condensing (40–65°C with cooling fan option)

Operating Humidity

0–80% RH, non-condensing

Communications

RS-485, RS-232C; 4–20 mA analog current output

Power

100 V / 200 V AC ±10%, 50/60 Hz, automatic recognition

Power Consumption

Approximately 50 VA

Dimensions

322 mm (W) × 164 mm (D) × 319 mm (H)

Weight

8.0 kg (17.6 lbs), including power cable and hood

Standard Accessories

Power cable, air-purging hood

Options

KJT70CNT controller, cooling fan unit, humidity compensation

Warranty

One Year Total Care Warranty covering parts, labor, and specification compliance. Maintenance Agreements available.

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