Concentration of O2 is | Teledyne AX300-I specs

Service Manual		AX300-I


		concentration of O2 is in
		excess of 40%, calibration
		with 100% is recommended.
		C) If humidified gas is used to
		ventilate the patient, water
		vapor actually dilutes the
		gas. See Appendix:
		Humidity, Temperature.
		D) If a blender is used, check
		its calibration. See
		Appendix: Discrepancy in
		Readings.
The unit has stopped	The AX300-I unit is	A) Disconnect the batteries and
working and the LCD is	equipped with an	inspect the contacts for
displaying	electronic "watch dog,"	corrosion. Reconnect the
alphanumeric figures.	which analyzers the	batteries. If the unit functions
	circuitry within the unit	properly, calibrate the unit
	for potential faults and	and reset the alarm values.
	renders the unit	B) Try a new set of batteries.
	inoperable until the

	condition is corrected.	C) Increase the distance
	(See Watch dog	between the unit and any
	section below)	source of radio frequency
	Several conditions can	interference. The sensor
		cable is a prime source of
	activate the "watch
		pickup as it can act like an
	dog." Dropping the
		antenna. Relocate the
	unit, poor battery
		sensor cable and if possible
	connections, and radio
		change its coiled length to
	frequency interference
		“de-tune” its antenna effect.
	are the most common
		Placing the cable in a
	causes. See the watch
		different position may also
	dog section for
		help.
	additional information

No display.	A) Batteries expired.	A) Check/replace batteries.
	B) Bad battery	B) Check battery connections.
	connection.	C) Calibrate.


Keys inoperable/cannot	The LOCK/UNLOCK	A) Press LOCK/UNLOCK key
turn unit off	key is activated which	once. LCD will flash
	is preventing key	indicating keys are active.
	operation
Cannot adjust	Critical settings require	A) If display is not flashing
calibration	two keys be pressed in	press lock key once to
	a specific order.	activate keys. Press desired
	LOCK/UNLOCK key is	function followed by the Up
		and Down key.
	active

Teledyne Analytical Instruments

AX300-I

concentration of O2 is in