Davis Instruments 8245, 8241, 8246, 8226, 8211, 8220, 8221, 8225, 8210 manual Parameter Range Resolution

			Welcome to CarChip
Trouble Log Summary View		Date and time, vehicle ID, trouble code, problem description
Trouble Log Problem View		Date and time, vehicle ID, CarChip ID, trouble code, problem
		description, comments, OBDII freeze frame info (parameters
		included in freeze frame vary from car to car)
Data Options
Supported Unit Systems		U.S., Metric, S.I., custom
Vehicle Speed Sampling Interval		1, 5, 10, 20, 30 or 60 seconds
Other Parameters Sampling Intervals		5, 10, 20, 30, or 60 seconds
(E/X only)
Vehicle Speed Bands		4, user configurable, use to identify typical vs atypical
		vehicle operation
Calculated Data		Hard and extreme braking, hard and extreme acceleration
Data Parameters for CarChip and CarChip E/X
Parameter	Range*		Resolution*
Vehicle Speed	0 to 158 mph, 0 to 255 kph, 0 to 70		0.6 mph, 1 kph, 0.3
	m/s		m/s
Trip Distance Traveled	0 to 10,000 miles, 0 to 16,000 km		0.1 m, 0.1 km
Acceleration/Deceleration	0 to 3 G, 0 to 30 m/sec2		0.03 G, 0.3 m/sec2
Threshold
*Range and resolution of sensor measurements only. Accuracy is dependent on the accuracy of the
vehicle’s sensors.
Data Parameters for CarChip E/X Only
Parameter	Range*		Resolution*
Engine Speed	0 to 16,384 rpm		1 rpm
Throttle Position	0 to 100%		0.1%
Coolant Temperature	-40° to +420°F, -40° to +215°C		2°F, 1°C
Engine Load	0 to 100%		0.1%
Air Flow Rate	0 to 8714 lb/min, 0 to 655.35		0.1 lb/min, 0.01
	gm/sec		gm/sec
Intake Air Temperature	-40° to +420°F, -40° to +215°C		2°F, 1°C
Intake Manifold Pressure	0 to 75 in. hg., 0 to 255 kPaA		0.3 in. hg., 1 kPaA

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