Checkpoint - DC Specification
The Checkpoint-DC is a cost effective instrument for the
examination of travel documents at border control points or for mobile patrols. Nine integral light sources allow the examination
of most visual security safeguards found on the latest passports
and visas, as well as offering the facility to check for alterations
and additions to documents.
an be from the local mains supply or from any 12 volt dc source, allowing the Checkpoint-DC to be used in patrol vehicles, and for transportation a padded carrying case is available as an option.
Overhead incident white
Two 10 watt quartz halogen for the visual examination of print quality and for checking for evidence of tampering.
Overhead incident Ultraviolet
Three wavelengths of ultraviolet illumination for the highlighting of security safeguards or for exposing alteration and staining.
365nm longwave Ultraviolet
4 x 6 watt black light blue lamps (total lamp power 24 watts)
313nm midwave Ultraviolet
A single compact 9 watt lamp with a narrow emission band at 313nm
254nm shortwave Ultraviolet
A single compact 9 watt lamp
The 313nm and 254nm lamps are housed behind a special filter which blocks any visible lights from the lamps which might interfere with the highlighting of fluorescent security safeguards.
Three light source housed behind a transmission window in the examination area which are used to verify transmission security safeguards such as threads, watermarks, perfect resolution printing and embedded fibres.
Two 11 watt compact lamps giving even illumination of the complete examination area, principally used for the checking of watermarks.
A single 20 watt halogen lamp giving an intense beam for the examination of obliterations and suspected photo substitution.
Two 6 watt 365nm black light blue lamps for the highlighting of paper and printed security safeguards from the rear.
A 20 watt halogen lamp mounted at the rear of the examination area provides glancing illumination over the working area for the examination of erasures, dry stamps and indented writing.
A 20 watt halogen lamp to reveal retroreflective security safeguards in laminates. A narrow beam of light is reflected off the front window of Checkpoint-DC to produce a beam onto the document which is coaxial with the operator’s eyes and so hidden images may be seen.
The overhead incident light, oblique and coaxial lamps may be adjusted in brightness with a simple push button control.
All the lamps are controlled from a single navigation
switch assembly; a lamp is selected by pressing the up or down buttons and then pressing the OK button; the selected lamp may be switched off by either pressing the OK button again or selecting another lamp. The left/right buttons of the navigation switch adjust the brightness of the overhead incident light, oblique and coaxial lamps.