Spectra Precision Focus 30 Service Manual

Chapter 3
Theory of Operation
Focus 30/35 Service Manual 3 - 18 P/N 79000035_SM, Version 1.5
Tracklight
The Tracklight is a visible guide light. It emits two flashing coloured lights, red and green. The
colours represents each side of the centre. The red and green lights enables the rod person to align
himself with the line of sight to the instrument.
Location of Tracklight
Fig. 3-15 Location of Tracklight
Technical specification
• Wavelength: Red, 645 nm / Green, 520 nm
• Range 150 m
Tracklight

Spectra Precision Focus 30 Specifications

General

Brand	Spectra Precision
Model	Focus 30
Category	Measuring Instruments
Language	English