MSHA's Accident Prevention Program
Features you may want when purchasing Camera Systems.
Lens Shutter - this feature helps keep the lens clean.
Low Lux Capability - improves visibility in low light conditions.
Water Resistant - intended for outdoor use.
Heated Lens - eliminates frost on the lens.
Adjustable field of view - allows zooming in/out for best coverage.
Shock mounted - prevents internal circuit damage and camera jitter.
Microphone - used to hear backup the alarm, spotter's commands, and emergency audibles.
Voltage should be compatible with the power source in vehicle - most commercial cameras are 12 volts, much equipment is 24 volts.
Brightness and Contrast Control - reduces glare on inside cab windows at night.
Switchable mirror (reverse) image - duplicates look into a rearview mirror.
Distance Markings on Screen - enables operator to estimate distances from equipment.
Convenient location for camera selection control - Operator not required to reach for controls.
Automatic switching to rearview when vehicle is in reverse - eliminates operator manually switching to rear camera.
Color monitor - may offer better contrast of objects.
Different monitor sizes - larger monitors do not display more information.
Automatic brightness control - automatically adjusts monitor at night to prevent glare.
Day/night setting - adjusts brightness/contrast for optimal day/night operation.
Voltage should be compatible with power source in vehicle (see cameras, last item).
LCD vs CRT - LCD is a smaller and lighter unit.
High quality positively secured connections - Typically these harnesses use military grade and water resistant connectors.
Protective over wrap - prevents damage to wire insulation.
Chemical and heat resistant cables - increases service life.
Over-current protection - this is important in any electrical circuit to prevent over heating the wiring and creating an ignition source.
Connectors designed to facilitate troubleshooting and replacement - direct plugging of the camera into the monitor when troubleshooting eliminates the need to splice wires to troubleshoot.
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