TSI Instruments Aerotrak 9303 Service Manual

3-12 AeroTrak
®
Handheld and Remote Airborne Particle Counters
9. Remove laser diode from service kit. Install the new laser with plastic
spacer into the laser board.
10. Position the laser/laser board assembly back into the optics block
and re-attach with the two screws. Leave the screws loose for
alignment later.
11. Apply power to the unit. Adjust potentiometer on detector board until
you have a reading of 0.075 volts on the DVM. Verify that you have
laser power by looking at the alignment target and seeing a red spot.
12. Align the laser to the center cross hair of the alignment target by
moving the laser board side-to-side/up-and-down. Once it is aligned
on the cross hair, tighten the two screws holding the laser PC board
in place. Verify that the laser is still centered on cross hair.
13. Carefully remove the alignment target and place a laser power meter
in front of the beam.
C A U T I O N n
Use caution when removing alignment target and placing laser power
meter so that you do not endanger yourself or others from the laser
radiation exiting the optics block.

TSI Instruments Aerotrak 9303 Specifications

General

Size Range .	0.3 to 25 µm
Channel Sizes .	0.3 µm and 5.0 µm fixed; 0.5, 1.0, 2.0, or 2.5 µm selectable middle channel.
Counting Efficiency .	50% at 0.3 µm; 100% for particles > 0.45 µm (per ISO 21501-4 and JIS)
Concentration Limits .	2, 000, 000 particles/ft3 at 5% coincidence loss
Zero Count Level .	<1 count / 5 minutes (per ISO 21501-4 and JIS B9921)
Flow Rate .	0.1 CFM (2.83 L/min)
Calibration .	NIST traceable with TSI® calibration system
Sampling Modes .	Manual and automatic
Sampling Time .	1 second to 99 minutes 59 seconds
Sampling Frequency .	1 to 999 cycles or continuous
Light Source .	Long life laser diode
Sample Probe/Tubing .	Isokinetic sampling probe
Exhaust .	Internal HEPA filter
Vacuum Source .	Internal pump
External Surface .	High impact injection molded plastic
Communication Mode .	USB serial output
Data Storage .	1, 500 sample records
Status Indicators .	Low battery and service
Display .	3.2-in. (8.1 cm) 160 x 160 monochrome LCD
AC Power . (power to AC adapter)	110 to 240 VAC 50-60 Hz Universal in-line power supply with country specific plugs
DC Power . (power to instrument)	9 VDC @ 1.5 A
Battery .	Rechargeable Li-Ion
Battery Life .	Up to 4.5 hours of continuous use
Recharge Time .	< 3 hours

Weight and Dimensions

Dimensions (L x W x H)	9.1 x 6.3 x 2.4 in. (23 x 11 x 6.2 cm) (without isokinetic inlet)
Weight .	1.3 lbs (0.58 kg) with battery