tinyTracker – measuring UV dose in the process
The tinyTracker dosimeter is an autonomous instrument for irradiance and dose measurement in UV belt systems. At a height of only 10 mm it travels through the irradiation channels of UV conveyor dryers and other industrial equipment. The measuring range is 0–200 mW/cm² or 0–2 W/cm²; recording runs at up to 25 measurements per second for up to three hours, single- or dual-channel and optionally double-sided.
The recording of values automatically starts when exceeding an adjustable minimum irradiance. The integrated radiometric sensors can be configured for different UV and visible spectral ranges. The integrated diffuser provides cosine correction that is necessary in non-perpendicular irradiation. The sensors are calibrated to PTB.
The data recording is done on a removable SD card, data transfer via USB. The power is supplied by a Li-Ion battery that provides a recording time of up to three hours. The Li-Ion battery can be charged directly via the USB interface. An additional power supply unit is included. The analysis and data export are done conveniently using a PC.
Highlights of tracker for UV conveyor belts
- Low height of only 10 mm
- Data recording with up to 25 measurements per second
- Measurement of irradiance and dose
- Selectable spectral range
- Single- and dual-channel versions, optional double-sided measurement
What is measured and recorded is the UV dose in the process – not the setting of the line, but what actually arrives at the workpiece.
| Product type | UV meter: Only 10 mm high process dosimeter, single- or double-sided, for tight conveyor systems |
| Spectral range | 200–780 nm |
| Measuring range | 0–200 mW/cm² or 0–2 W/cm² |
| Calibration uncertainty (typ.) | 4.5–6.0 % (k = 2) |
| Output / interface | Interface: Mini-USB |
| Time resolution | Recording frequency: 2–25 Hz, adjustable |
| Calibration | factory calibration, recalibratable |
| Standards / guidelines | no product-specific standard; calibration per DIN EN ISO/IEC 17025:2018 available |
| Suitable for | UV curing and photopolymerisation; Packaging and filling technology; Optics and precision components; Automotive |
| Not suitable for | spectrally resolved measurement (peak wavelength, bandwidth); irradiance above 2 W/cm² (standard range); sensor temperatures above 60 °C; use under water or under pressure |
| Datasheet revision | Rev. 2026-09-08 (E_belt_radiometer_tinyTracker.pdf) |
The calibration uncertainty stated above is the expanded uncertainty of the calibration (k = 2, confidence level approx. 95 %) and applies to the calibration source and the calibration conditions. In use the measurement uncertainty is larger: spectral mismatch at the source actually used, the sensor temperature, ageing since calibration as well as distance and alignment to the source are added to it. How these combine into an uncertainty budget is explained under Measurement uncertainty in UV measurement.
View the tinyTracker as a 3D model
Look at the data logger from every side, rotate and zoom – directly in your browser.
The tinyTracker can be viewed from all sides in the 3D product viewer – true to the original, generated from the CAD design data. For a device meant to travel through narrow production lines, the spatial view says more about its size than a dimension ever could.
Technical data of tracker for UV conveyor belts
| Measuring range | 0–200 mW/cm² or 0–2 W/cm² |
| Resolution | 12 bit |
| Recording time | up to 3 h |
| Sampling frequency | 2–25 Hz, adjustable |
| Number of sensors | 1 or 2 |
| Sensor position | single or double sided |
| Cosine correction | yes |
| Spectral ranges | UVC, UVB, UVA, UVA+, UVBB, VISB or LUX |
| Dimensions tinyTracker | 195 × 79 × 10 mm |
| Permissible operating temperature | 60 °C |
| Power supply | internal Li-ion battery |
| Interface | Mini-USB |
| System requirements | Windows 10 / 11, 300 MB HDD, 1 GB RAM |
Frequently asked questions: tinyTracker
The tinyTracker is only 10 mm high and thus the flattest dosimeter in the range; it travels through conveyor systems, packaging and filling machines where only a narrow gap remains between conveyor and lamp. The housing measures 195 × 79 × 10 mm. The two-channel version measures with one sensor on top and one underneath simultaneously, for example in systems with double-sided irradiation.
The measuring range is fixed when ordering: 0–200 mW/cm² for low-pressure UVC and fluorescent lamps or 0–2 W/cm² for medium-pressure lamps and UV LEDs. Recording runs for up to three hours at an adjustable 2–25 Hz; the data are read out via USB and shown as a time profile with dose. A threshold starts the recording automatically when the device enters the irradiation zone.
Yes. In packaging and filling systems the tinyTracker travels through the UVC section instead of the product and measures the dose actually arriving at the product in mJ/cm², separately for top and bottom. The minimum dose for the required germ reduction can thus be demonstrated, as validations per HACCP or EU GMP require. For the safety assessment per ISO 15858:2016 a measurement outside the system with the RMD complements this.
The calibration certificate states the expanded calibration uncertainty with k = 2; for the tinyTracker it is typically 4.5–6.0 %. In use the measurement uncertainty is larger, because spectral mismatch at the source actually used, sensor temperature, ageing and measuring geometry are added to it. How these combine into an uncertainty budget is explained under Measurement uncertainty in UV measurement.
Order numbers, scope of delivery, accessories and versions
| Spectral range | Order number |
|---|---|
| UVC | 824202C |
| UVB | 824202B |
| UVA | 824202A |
| UVA+ | 824202A+ |
| UVBB | 824202BB |
| VISB | 824202VB |
| LUX | 824202L |
Scope of delivery: the tinyTracker, the factory calibration certificate, a USB cable, the power supply unit and a transport case. Please state the required spectral range and measuring range with your order; without a statement we supply the measuring range 0–200 mW/cm².
| Spectral range | Order number |
|---|---|
| UVC | 824203C |
| UVB | 824203B |
| UVA | 824203A |
| UVA+ | 824203A+ |
| UVBB | 824203BB |
| VISB | 824203VB |
| LUX | 824203L |
The tinyTracker measures with one or with two sensors - on one side or on both sides.
| Service | Order number |
|---|---|
| Factory calibration | 710000 |
| ISO 17025 calibration | 17025 |
Accredited calibration to ISO/IEC 17025 in our own calibration laboratory. On delivery the device is already factory-calibrated.
