Minimum internal pipeline diameter

5.3 inches

Recommended maximum pipeline diameter

Gamma 18 inches, X-Ray 14 inches

Power unit (rechargeable battery pack)

Sealed lead acid cells

Battery charger (for lead acid)

Dual state automatic

Tractor motor rating

24 volts, 200 watts (Gamma), 48 volts, 200 watts (X-Ray)

Running wheel diameter

88mm

Travel speed (approx.)

40 feet per minute

Maximum gradient (clean pipe)

27° from horizontal

Braking

Dynamic

Mean positioning accuracy

±0.2 inches (5mm)

Pipeline curvature traversable

Nil (at minimum ID) to 10D or better depending on bend length and diameter

Exposure timer

0-200 seconds (pre-set)

Exposure safety delay

0-30 seconds (pre-selectable)

Ambient operating temperature limits

-4°F to 140°F (-20°C to 60°C)

Control (signaling) and tracker isotopes

Caesium 137 (20 millicuries)

Panoramic radiation sources

20 curie gamma (Iridium 192), 120 kV Balteau x-ray, 160 kV ICM x-ray, 180 kV CP x-ray