Lovibond PFXi 195, Инструкция оператора

Страница: 6 / 53

Lovibond
®
PFX i
Series Operator’s Instruction Manual V1.6
Page 6 of 53
Technical Specification PFXi 195 PFXi 880/950/995
Measuring principle 9 interference filters 16 interference filters
Spectral response 420
– 710 nm
Bandwidth 10 nm
Repeatability On measurements of de-ionised water
Chromaticity +/- 0.0004 +/- 0.0002
Delta E 0.4 0.2
Measurement time Less than 20 seconds
Baseline calibration Single key press; fully automated
Light source 5 Volt, 10 Watt Tungsten Halogen
Illuminants CIE Illuminants A, B, C, D65
Observer 2°, 10°
Path length 0.1
– 50 mm
0.1
– 153 mm (.004” – 6”)
Interfaces USB, LAN, RS232
Data storage 100,000+ Measurements
Input voltage Universal (90
– 240 Vac), via external power supply
Compliance CE, RoHs, WEEE
Display 240 x 128, LED backlit graphic display (white on blue)
Keypad 23 key tactile membrane keypad, washable polyester with
optional audible feedback
Languages English, French, German and Spanish
Heater unit N/A Optional, Ambient to 95°C
Instrument housing Fabricated steel with tough, textured paint finish
Dimensions Width 435 mm
Depth 195 mm
Height 170mm Width 515 mm
Depth 195 mm
Height 170mm
Weight 6.8 kg 7.7 kg
Instrument Specification
Description
Lovibond
®
PFX i instruments are high-precision, spectrophotometric colorimeters which are
designed for objective colour measurement of clear liquids or transparent solids. They are
easy to use, automatic instruments which overcome the subjectivity of visual methods. The
menu system guides operators through the selection of operating parameters. Thereafter,
measurements are initiated by just a single key press and take less than 20 seconds to
complete. PFX
i instruments are rugged colorimeters with fabricated steel housing which are
designed to function as a QC instrument within the laboratory or on 24-hour operation in a
process control environment.
Lovibond
®
PFX i instruments operate as stand-alone colorimeters containing a standardised
light source and collimator, sample chamber, light detector, monochromator and processor
board.
Colour scales
Lovibond
®
PFX i instruments are designed to meet the colour analysis requirements of light
transmitting samples such as liquid chemicals, fuels, beers and waters. The PFX i series
provides colour data according to a full range of established industry scales. Measurements
can also be displayed in terms of spectral data and CIE values. PFX
i instruments also allow
users to obtain a closest match to stored references or to build up a customised scale from a
series of reference samples. The user can easily customise the PFX
i instrument to display
only those scales of interest.