TSI Instruments Aerotrak 9303 Service Manual

3-10 AeroTrak
®
Handheld and Remote Airborne Particle Counters
1. Follow the disassembly instructions to remove the optics block from
the chassis.
2. Reconnect the main board to the optics block along with the keypad
to the main board. This will allow you to power up the laser for setup.
DO NOT apply power to the unit at this time.
3. Remove the
beam block from
the optics block.
Remove the
Phillips head
screw holding
the beam block
in place and pull
the beam block
straight out of
the optics
assembly.
4. Insert the laser
alignment mask
into the optics
assembly where
the beam block
was removed.
Align the notch
in the mask with
the threaded
mounting hole in
the optics block.
5. Connect DVM across TP2 & TP5 on detector board. Set DVM to volts
DC. This will be used to measure the laser current (voltage across a
1 ohm resistor). Example: 0.075 volts = 75 mA.
TP2
TP5

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