Shock (commonly referred to as drop) tests are performed to assure that the hardware can withstand the relatively infrequent, non-repetitive shocks or transient vibrations encountered in handling, transportation, and service environments. Mechanical shocks will cause a piece of equipment to respond at both forced and natural frequencies. This response, among other things, can cause:

  • Failures due to increased or decreased friction, or interference between parts
  • Changes in dielectric strength, loss of insulation resistance, variations in magnetic and electrostatic field strength
  • Permanent deformation due to overstress
  • More rapid fatiguing of the hardware

Trimble Kenai®, Yuma® 2, Nomad® 1050, Juno® T41 and Ranger™ 3 are all tested in accordance with Procedure IV, Transit Drop, for items weighing less than 45.4 kg (100 lbs), and under 91 cm (36 in) in its largest dimension.

Twelve additional drops were conducted (for 38 drops total):

  • Six at –30 °C (–22 °F)
  • Six at 60 °C (140 °F)

Trimble Nomad® 1050, Ranger™ 3, Juno® T41 testing was conducted on plywood over a concrete surface. Trimble Yuma® 2 testing was conducted on plywood over a steel surface.