Welcome to Kett - Tomorrow's Testing Today
USD|ENG
Welcome to Kett - Tomorrow's Testing Today
The KJT703 measures moisture and water activity continuously to 0.001% on open production lines: belt conveyors, screw conveyors, sluices, drop chutes, and gravity feeds. The sensor sees the product directly, scans at 0.1-second refresh, and reports moisture in real time. It shares the field-proven online platform of the KJT700 composition analyzer, configured for moisture measurement alone.
The KJT703 measures across an approximately 50 mm spot at 350 mm focal length, scanning continuously at 0.1-second refresh. Up to 99 moisture calibrations are stored on each sensor head, and multiple heads network to a single connection for multi-point installations across a production line. NIR reflectance keeps the measurement non-contact and non-destructive, with automatic zero adjustment and on-board self-diagnostics for unattended operation. Each KJT703 ships with Kett’s One-Year Total Care Warranty on parts, labor, and specification compliance. Post-warranty maintenance agreements and on-site calibration services are available.
Need composition, not moisture alone? The KJT700 Online NIR Composition Meter measures up to nine organic components on the same open-line platform, adding protein, fat, oil, sugar, and more alongside moisture.
Need moisture in a smaller, PC-free footprint? The KB30 Online NIR Moisture Meter is the world’s smallest inline NIR sensor, a moisture-only smart sensor that needs no PC, for single-point installations where the full platform is more than the job requires.
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The KJT703 measures moisture and water activity continuously to 0.001% on open production lines: belt conveyors, screw conveyors, sluices, drop chutes, and gravity feeds. The sensor sees the product directly, scans at 0.1-second refresh, and reports moisture in real time. It shares the field-proven online platform of the KJT700 composition analyzer, configured for moisture measurement alone.
The KJT703 measures across an approximately 50 mm spot at 350 mm focal length, scanning continuously at 0.1-second refresh. Up to 99 moisture calibrations are stored on each sensor head, and multiple heads network to a single connection for multi-point installations across a production line. NIR reflectance keeps the measurement non-contact and non-destructive, with automatic zero adjustment and on-board self-diagnostics for unattended operation. Each KJT703 ships with Kett’s One-Year Total Care Warranty on parts, labor, and specification compliance. Post-warranty maintenance agreements and on-site calibration services are available.
Need composition, not moisture alone? The KJT700 Online NIR Composition Meter measures up to nine organic components on the same open-line platform, adding protein, fat, oil, sugar, and more alongside moisture.
Need moisture in a smaller, PC-free footprint? The KB30 Online NIR Moisture Meter is the world’s smallest inline NIR sensor, a moisture-only smart sensor that needs no PC, for single-point installations where the full platform is more than the job requires.
| Weight | 30 lbs |
|---|---|
| Dimensions | 21 × 18 × 13 in |
| Measurement Principle | Near-Infrared Reflectance/Transmittance |
| Measurement Range | 0.000–99% (product dependent) |
| Accuracy | ±0.001% (reference method dependent) |
| Resolution | 0.001% |
| Reproducibility | 0.001% |
| Response Time | Continuous |
| Refresh Rate | Sensor head 0.1 s current output, 0.2 s display; controller 0.5 s |
| Applications | Moisture |
| Measurable Components | Moisture |
| Form Factor | Online |
| Measurement Diameter | Approximately ø50 mm at 350 mm |
| Measurement Distance | 350 mm ±50 mm |
| Number of Wavelengths | 2 plus reference |
| Light Source | Tungsten lamp |
| Sensor Type | Reflectance sensor head in aluminum die-cast case, water- and dust-resistant, ceiling mounted (M8 × 4, 12 mm depth) |
| Throughput / Capacity | Multiple sensors per circuit. Up to 32 sensors per connection. |
| Display | Sensor head: 7-segment LED (channel, value/error, 3 decimals). Controller: LED plus LCD |
| Measurement Modes | Continuous monitoring with selectable averaging span, 0.0–99.9 seconds in 0.1 second steps |
| Compensation Functions | Temperature compensation, analytical curve correction constants, offset compensation, optional humidity compensation via sensing hood |
| Features | Zero adjustment by key operation, analytical curve offset correction, upper and lower limit alarms, output hold, self-diagnostics with error code reporting |
| Data Memory Capacity | 99 analytical curves stored in the sensor head. Trend and process data stored in Kett Tracker on the connected PC. |
| Calibration Curves Available | Up to 99 channels per sensor head (one product per channel); developed via PC software |
| Safety Features | Low reflectance, motor rotation error, internal temperature high/low, channel setting error, calculation error, RAM error, sensor error, common failure output |
| Operating Temperature | 0–40°C, non-condensing |
| Operating Humidity | 10–80% RH, non-condensing |
| Communications | Sensor head to controller and head to head: RS-485. Controller to PC: RS-232C. Process output: 4–20 mA |
| Power | Sensor head: AC 100/200V ±10%, 50/60 Hz (auto-ranging). Controller: AC 100/200V ±10%, 50/60 Hz |
| Power Consumption | Sensor head approx. 50 VA; controller approx. 50 VA |
| Dimensions | Sensor head 358 mm (W) × 177 mm (D) × 451 mm (H); controller panel opening 275 × 180 mm |
| Weight | Sensor head 11 kg (24 lbs); controller 8 kg (18 lbs) |
| Standard Accessories | Air purge hood (FD), ceramic zero adjustment plate (CKN), controller (JEC1) |
| Options | Humidity compensation hood, cooling unit, junction boxes (stainless steel or ABS) |
| Warranty | One Year Total Care Warranty covering parts, labor, and specification compliance. Maintenance Agreements available. |
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