Cleaning Consultancy Delft bv. - Delft - The Netherlands

Equipment

TRA - Tristimulus reflection analyzer

The Tristimulus Reflection Analyzer TRA2000 is a portable instrument for measuring whiteness, stain removal and tristimulus reflection of textile and other materials.

Description

The Tristimulus Reflection Analyzer (TRA) is a portable instrument for measuring whiteness, stain removal and tristimulus reflection of textile and other materials.

This new version of the TRA can easily be operated, and can be used independent of external power supply. The analyzer is microprocessor driven. This microprocessor calculates the measured values, and can be interfaced with a personal computer. With the TRA software the values can be stored and processed.

Principle

The analyzer consists of an optical sensor unit and an electronic measuring device. This sensor unit contains a light source which transmits light through a filter on the object to be measured. The object reflects an amount of this light, depending on the properties of the object. This amount is measured and calculated as a percentage (0%= absolute black, 100% = perfect diffuser).

The colours (green, blue and amber) are switch able by changing the filters mounted on the sensor unit. The analyzer automatically adapts to the chosen colour. The analyzer is based on the CIE colorimetric functions of the standard observer. It is compliant with standard ISO 4312 and other.

Applications

This analyzer is specially developed for measuring textile and other non﷓flat materials. Used in combination with the Industrial Cleaning Monitors, Multi Soil Monitors or other artificially soiled test fabrics developed by Cleaning Consultancy Delft bv., an objective judgement of laundry processes can be made.

The analyzer is also suitable for measuring the whiteness of textiles.

Due to the compact and rigid design, the analyzer is perfect for applications in the field by for instance laundry's, consultants and detergent manufacturers.

Specifications

Measuring principle	Tristimulus, reflection at 45 ° CIE standard observer, ISO 4312
Colours	Green, Blue, Amber with automatic adaptation
Measuring surface	315 mm2, circular
Accuracy	± 1.5% absolute (reflection range 15% - 95%) ± 5% absolute (reflection range 0% - 100%)
Display	LED- display with measuring values: 0 - 99 % Fault indicator (EE) Indicator for adjustment (CC)
Calculations	Microprocessor
Resolution	12 bits
Memory	EEPROM for calibration values and service information
Communication	19K2 bps, TTL/RS232, TRA protocol
Ambient temperature	+5 .. + 40 °C
Power supply	12 V DC (with power supply, only use the supplied supply!)
Battery	NiMh
Charging time	approx 14 hours (when completely discharged)
Measuring time	approx 7 hours (when completely charged)
Led indication with	Battery status (low battery, charging)
Dimensions	Measuring part 250x150x32 mm ((lxwxh) Sensor unit 140xdiam. 75 mm Cable length to sensor unit approx. 1,2 m
Weight	Measuring part 1,1 kg Sensor unit 0,8 kg Total weight including case 3,8 kg
Accessories	Transport case Power supply Calibration adjustment plate TRA windows software TRA interface cable Calibration certificate



	Cleaning Consultancy Delft bv.