Futrex Futrex -5000/XL manual Troubleshooting Problem Probable Cause Corrective Measures

TROUBLESHOOTING

PROBLEM	PROBABLE CAUSE	CORRECTIVE MEASURES
1) Display shows "LOBAT"	Batteries are low	a) Replace batteries (Refer to page 3).
	a) Bad connection between Light Wand	a) Be sure the Light Wand is properly
2) Display shows "1999.9" or	and Probe Socket	inserted into the Probe Socket.
"-1999.99"
	b) Too much/too little light	b) Be sure the Light Wand is properly
		seated in the Optical Standard when
		Zero Adjusting.
3) Bad Repeatability	a) Inconsistent measurement technique	a) Make sure you are applying enough
		pressure between the Light Wand and
		the subject's arm.
		b) The silver line on the Light Wand
		must be aligned with the line on the
		Optical Standard when Zero Adjusting.
		c) When taking a measurement, the
		silver line on the Light Wand must point
		toward the subject's shoulder.
		d) Use the Light Shield to block the
		external light. Always avoid
		measurements under strong lights (e.g.
		direct sunlight) because errors may
		occur.

29