Portable test instrument

[0001]FIG. 1 is a top front perspective view of a portable test instrument showing the new design;

[0002]FIG. 2 is a bottom rear perspective view thereof;

[0003]FIG. 3 is a front elevation view thereof;

[0004]FIG. 4 is a rear elevation view thereof;

[0005]FIG. 5 is a left-side elevation view thereof;

[0006]FIG. 6 is a right-side elevation view thereof;

[0007]FIG. 7 is a top plan view thereof; and,

[0008]FIG. 8 is a bottom plan view thereof.

[0009]The portions shown in broken lines, represented as dashed lines, depict environmental structure only and do not form part of the claimed design.

[0010]The broken lines represented as dot-dash lines, crossing the article in all views, depict break lines which form no part of the claimed design. The appearance of any portion of the article between the dot-dash lines forms no part of the claimed design.