DGA Focused Gamma Tool Specifications

DGA FOCUSED GAMMA
Application	Geosteering/MWD
Mechanical
Diameter (O.D.)	1.30″
Length (make up)	13.6″
Weight	3.0 lb.
End Connectors	MDM 15-Pin
Material	Aluminum Alloy/Tungsten
Pressure	NR
Performance
Sensitivity	0.6 Counts per API
Accuracy	+/- 2% to 300°F. +/- 5% to 350°F.
Maximum API Range (with 5% error)	15000 API
Front/Back Count Ratio	2.4
Angular Resolution (8″ hole)	75° / 360°
Thin-Bed Resolution (8″ hole diameter, at 50% points)	8.8″
Environmental
Operating Temperature	-77 to +350 °F
Survival Temperature	400°F.
Max Heat/Cool rate	5°F./Minute
Vibration (3 axis) 50-300 Hz Random spectrum	30 G. RMS
Shock (Z-axis)	500 G., 0.5 mS.
Shock (X or Y-axis)	1000 G., 0.5mS.
Power Requirements
Input Voltage	17-48 Volts
Input Current	11-8 mA. (constant power)
Maximum Voltage	50 Volts
Output Signal
Negative Pulse	+5V to GND. 5 uS fixed width