The TSI AEROTRAK 7201, 7301 and 7501 Remote Particle Counters offer the most features and flexibility out of any remote particle counter on the market today. Integration is easy using either Ethernet （TCP/IP） or serial Modbus RTU communications. The instrument can be powered over its Ethernet connection （Power-over-Ethernet） to simplify installation, or via a local power supply. Configuration can be done locally with a PC or via a web browser.
    These particle counters can also store up to 3,000 sample records providing data redundancy. Each instrument reports up to 4 particle sizes simultaneously and other key information such as sensor status, date of last calibration, serial number and date of manufacture for easy warranty management.
     Digital calibration allows for consistency when managing a large number of instruments. With the optional Temp/RH sensor, users can save cabling and powering a separate sensor into a
monitoring or building automation system. Each TSI AEROTRAK Remote Particle Counter also includes an alarm output which allows its users to alarm directly from the particle counter.
    Backed with a standard 2 year warranty and TSI commitment for superior service and support, there is no other remote particle counter on the market today with such features and benefits.

Features and Benefits
       AEROTRAK 7201: 0.2 – 2 μm
        AEROTRAK 7301: 0.3 – 10 μm
       AEROTRAK 7501: 0.5 – 10 μm
        0.1 CFM （2.83 LPM） flow rate
       Up to 4 channels of simultaneous data
       ISO 21501-4 Compliant
       Ethernet （TCP/IP） and serial Modbus RTU output
       Power-over-Ethernet （PoE） or local power
        3,000 sample record storage
       Static or dynamic IP address （DHCP）
       Local or remote configuration via web browser
       RoHS Compliant
       Low outgassing and ionics using 3M™ Adhesive Technology
       Stainless steel enclosure
       Optional Temp/RH probe
       Optional external alarm output

Specifications
Size Range:
              7201:0.2 - 2 μm 
              7301:0.3 - 10 μm
              7501: 0.5 - 10 μm
Channel Sizes 7201 :
             Standard: 0.2, 0.3 μm
             Standard: 0.2, 0.5 μm
             Optional: 0.2, 0.3, 0.5, 1.0 μm
             Optional: 0.2, 0.3, 0.5, 2.0 μm
             Additional channel sizes available
Channel Sizes 7301 :
              Standard: 0.3, 0.5 μm
              Optional: 0.3, 0.5, 1.0, 5.0 μm
              Additional channel sizes available
Channel Sizes 7501 :
             Standard: 0.5, 5 μm
             Optional: 0.5, 1.0, 2.0, 5.0 μm
             Additional channel sizes available
Counting Efficiency
             7201: 50% at 0.2 μm; * for particles > 0.3 μm （per JIS）
             7301 : 50% at 0.3 μm; * for particles > 0.45 μm （per JIS）
             7501 : 50% at 0.5 μm; * for particles > 0.75 μm （per JIS）
Concentration Limits
            7201 : 500,000 particles/ft3 at 5% coincidence loss
            7301 : 2,000,000 particles/ft3 at 5% coincidence loss
            7501 : 2,000,000 particles/ft3 at 5% coincidence loss
Light Source : Laser diode
Zero Count Level :  <1 count / 5 minutes （<2 particles / ft3） Meets JIS B9921
Flow Rate : 0.1 CFM （2.83 LPM） with ± 5% accuracy
Calibration : NIST traceable
Sample Time : 1 second to 24 hours
Vacuum Requirements : External vacuum > 15" （38.1 cm） of Hg
Communication Mode : Ethernet （TCP/IP） and serial Modbus output
Data Storage : 3,000 sample records
Status Indicators : Power, service, counting and Ethernet
External Alarm Output : Normal open dry contact rated 0-60 V AC/DC 1 Amp
Environmental Sensors : Optional Temp/RH probe 32° to 113°F （0° to 45°C） ± 2°F （1°C）; 10 to 90% RH ±5%
External Surface : Stainless steel
Power : Power-over-Ethernet （PoE compliant with IEEE 802.3af） or 12 VDC
Dimensions : （L x W x H） 4.5 in. x 1.6 in. x 2.8 in. （11.5 cm x 4.1 cm x 7.2 cm）
Weight : 0.95 lb （0.43 kg）
Standards : CE, JISB9921, ISO 21501-4
Warranty : 2 years. Extended warranties available
Operating Conditions : 50° to 104°F （10° to 40°C） / 20% to 95% non-condensing
Storage Conditions : 14° to 122°F （-10° to 50°C） / Up to 98% non-condensing
Included Accessories : Operating manual on CD
Optional Accessories : Power supply, isokinetic inlets, purge filter, Temp/RH probe, alarm cable, alarm connector, crimping tool, sample tubing, vacuum tubing, data cable and remote mounting bracket