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Dakota Ultrasonics
38
APPENDIX A
Product Specifications
Physical
Weight: 10 ounces
Size: 2.5W x 4.75H x 1.25D inches
(63.5W x 120.6H x 31.75D mm).
Operating Temperature: -20 to 120 °F (-20 to 50 °C)
Case: Extruded aluminum body / nickel plated aluminum end
caps.
Keypad
Sealed membrane, resistant to water and petroleum products.
Power Source
Two “AA” size, 1.5 volt alkaline or 1.2 volt NiCad cells. 200 hours typical
operating time on alkaline, 120 hours on NiCad.
Display
Liquid-Crystal-Display, 4.5 digits, 0.500 inch high numerals. LED backlight.
Measuring
Range: Pulse-Echo mode 0.025 to 19.999 inches (0.63 to 500 millimeters)
Echo-Echo mode 0.100 to 1.0 inches (2.54 to 25.4 millimeters.
Resolution: 0.001 inch (0.01 millimeter)
Accuracy: ±0.001 inch (0.01 millimeter), depends on material
and conditions
Sound Velocity Range: 0.0492 to 0.3930 in/µs (1250 to 10000 m/s)