HEILAND
TRD-2 DENSITOMETER
The TRD 2 is an instrument for measuring reflected and transmitted densities
of neutral-colour materials in the fields of photography, printing and
graphics, micro-film and x-ray processing.
Construction:
Powered by mains AC voltage.
The body of the unit, made of a plastic material, also serves as a platform
on which the original rests during measurement. The mode selection switch
has the following positions:
‘T’ (transmission measuring)
‘O’ (off)
‘R’ ( reflection measuring)
In ‘O’ position, only the measuring light and the density
display are switched off. In positions ‘T’ and ‘R’ the corresponding measuring light and density display are automatically
activated when-ever the measuring head is lowered.
A reset button for the density display is located on top of the measuring head. To prevent accidental erasure of previously taken readings, this button is designed to work only when the measuring head is operated. Different zero points (nulling) are defined for transmission and reflection measuring.
Electronically, the measuring system mainly consists of the lamp, the photocell, the microprocessor and the density display. Also, due to the sophisticated method of voltage regulation and high quality components, the measuring lamp life is long and constant. The latest technology, first class materials and detailed workmanship assure precise and reliable measuring over a long period. Additionally, you can be sure of high stability in view of temperature and humidity changes.
