MET ONE 4500

MET ONE R4500 series remote air particle counters are affordable, reliable and provide accurate data in particle monitoring systems. A compact design with flexible sizing, flow rate and communication options address the specific needs of cleanroom operations within the pharmaceutical, semiconductor, hard disk drive and flat panel display industries.
MET ONE Remote Air Particle Counter 4500 Series

Benefits of selecting the MET ONE 4500 remote air particle counter

Easy to integrate with any facility monitoring system
The MET ONE R4500 series remote air particle counter uses RS-232 Digital Pulse or RS-485 Modbus communications to easily integrate into your facility monitoring system
Flexible for all your remote air particle counter applications
Particle counting sensitivity ranges from 0.3µm to 0.5µm with flow rates at 0.1cfm. Onboard LED status indicator that flashes and sets a signal at the connector for alarm. Stay resident RS-485 configuration programming (count time, hold time, alarm level, alarm delay, and scaling) is maintained through power cycles (power on/off)
Easy installation options
The small stainless steel enclosure is compatible with most process environments. There is no fan to disturb airflows, allowing the MET ONE R4500 series air particle counter to be placed close to sensitive process areas.
Minimum Sensitivity (μm) 4503:  0.3μm
4505:  0.5μm
Size Range (μm) 4503:  0.3 to 5.0μm
4505:  0.5 to 10.0 μm
Flow Rate 2.83 LPM (0.1 CFM)
Number of Particle Size Channels 2
Available Channel Sizes (μm) 4503:  0.3, 0.5, 1.0, 2.0, 3.0, 5.0μm
4505:  0.5, 1.0, 2.0, 3.0, 5.0, 10.0μm
Counting Efficiency 4503:  50% at 0.3 μm; 100% at >0.45 μm
4505:  50% at 0.5 μm; 100% for >0.75 μm
Maximum Concentration 2,000,000/ft3 at 5% Coincidence Loss
Meets JIS Yes
Light Source Long Life Laser™ diode
Communications Protocol Modbus or Pulse
Outputs RS-485 Modbus or RS-422 Pulse
Output Connection RJ-45
Power 9-28 VDC
Vacuum Requirements >18 in. Hg
LED Indicators Power, Calibration
Enclosure Stainless Steel
Weight 0.35 kg (12.3 oz.)
Size 10.64 cm x 5.38 cm x 4.34 cm
(4.19 in. x 2.12 in. x 1.71 in.)

Included Accessories

Part Number Description
MO000026-01 Intake Nozzle, 1/8" Hose Barb
SA000054-01 Exhaust Nozzle, 1/4" Hose Barb
701243 Manual
VP792002 1/4" O.D. High Purity Tubing, 6"

Optional Accessories

Part Number Description
2082383-2 RS-232 to RS-485 Convertor Kit
VP212808 Zero Count Filter
MP000120-01 Isokinetic Probe, Hose Barb
VP894408 RS-232 Modular Cable