Impact-O-Graph Specifications

Impact-O-Graph Models
Model Chart speed Metric Chart life Battery life
M-4 1/2 in/hour 1.27 cm/hour 40 days 6 months
M-3 1/4 in/hour 0.635 cm/hour 80 days 6 months
M-2 3 in/day 7.62 cm/day 160 days 6 months
M-1 2 in/day 5.08 cm/day 240 days 6 months
M-M 1 in/day 2.54 cm/day 1 year 6 months
*All recorders come with rugged housing. A watertight housing or viewing window are available. Rental options are available in North America.
Sample g-Ratings for Vehicle & Weights
Vehicle suspension ride g-Rating
Passenger car - smooth roads 1
Vans smooth or rough roads 6
Truck/trailer - smooth roads 6
Truck/trailer - rough roads 15
Off-road vehicles 15
*Selection will depend upon the sensitivities of object, packaging and modes of transportation

Stylus Bracket Settings

The three bracket styli can be ordered with the same or different g-levels, for example: 2x, 15y, 6z. The appropriate g-level will depend on several factors including product sensitivities, mode of transport, and packaging.

Stylus Brackets Available
Gs Natural Frequency (fn, cps) Natural Frequency (fn, cps)
0 to 2* 8.5 58.8
0 to 4* 10.0 50.0
0 to 6 12.5 40.0
0 to 10 15.8 31.6
0 to 15 19.5 25.6
0 to 20 17.6 28.4
0 to 30 13.0 21.8
0 to 50 25.0 20.0
0 to 70 27.0 18.5
0 to 100 29.7 16.6
0 to 200 35.0 14.3
0 to 300 38.0 13.2