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MET ONE 237A/B

MET ONE 237A and MET ONE 237B portable air particle counters are rugged, simple to use and light.  With an inbuilt battery and integral printer the MET ONE 237 Series is ideal for monitoring large cleanrooms in addition to more demanding controlled environments such as LAF workstations, hospital pharmacies, and aerospace applications.
MET ONE Air Particle Counter 237AB

MET ONE 237 Series offers easy and simple portable air particle counters

Rugged, simple, battery-operated, compact and portable
Easy to read display
A bright LED display makes reading the data easy
Flexible particle count sizes for pharmaceutical and electronic cleanroom applications
Select 0.3um or 0.5um sensitivity and 2 to 6 channels to meet the needs of your application
Size Channels (µm) 237A:
2 ch. 0.5, 5.0
4 ch. 0.5, 0.7, 1.0, 5.0
5 ch. 0.5, 0.7, 1.0, 2.0, 5.0
6 ch. 0.5, 0.7, 1.0, 2.0, 3.0, 5.0
237B:
2 ch. 0.3, 0.5
4 ch. 0.3, 0.5, 1.0, 5.0
5 ch. 0.3, 0.5, 0.7, 1.0, 5.0
6 ch. 0.3, 0.5, 0.7, 1.0, 2.0, 5.0
Flow Rate 0.1 CFM (2.83 LPM)
Coincidence Limit 2 million/ft3
Light Source Laser diode
Factory Calibration Mono-dispersed polystyrene spheres (NIST traceable)
Display 7-digit red LED
Output RS-232C/RS-485 for computer, built-in printer
Location Labels 250, appear on printout
Data Storage 500 samples, rotating buffer
Sample and Hold Times 1 second to 24 hours
Count Alarms 1 to 9,999,999, counts each channel
Count Modes Manual, auto, concentration, beep
Concentration Mode 1-second samples, 1 to 10 samples averaged, display updated every second; displays counts/ft3, liter or counts/1000L (m3)
Power AC adapter or internal battery pack
Battery Type Rechargeable NiMH
Battery Recharge Time 90% in 10 hours; 100% in 12 hours
Battery Operating Time 4 hours with printing, 8 hours without printing
Dimensions 17 w x 12 h x 30 d cm (6.7 x 4.5 x 11.7 inches)
Weight 3.1 kg (6.8 lbs)
Environment Operating: 12°C to 29°C (55°F to 84°F), 20 to 95% relative humidity, non-condensing Storage: -40°C to 70°C (-40°F to 160°F), up to 98% relative humidity, non-condensing
Warranty One year from the date of manufacture, covering parts and labor

Accessories included with the MET ONE 237A/b portable particle counter:

203015-3 Iso probe, wand type
2080613 Iso probe, direct mount
2088440 Power supply
VP623501 Power cord 115 vac
VP623500 Power cord 220 vac
2080442 Purge filter
460519 Printer paper (2 rolls)
701076 Manual
590815 Fuse (2 each)
995240 Cleaning brush

Optional accessories:

2080732-6 HPD
2086719-01 RH & Temp probe
2080879 Carrying case
460159 Printer paper
2084045-02 PortAll kit
700011-21 PortAll standard license
700011-22 PortAll 21 CFR license
701169-01 PortAll validation documents CD

PortAll Software

  • Data can be downloaded at the operator’s convenience from the 400-record buffer and displayed as a graph or a table in the built-in spreadsheet
  • Computer System Minimum Requirements:
    • Pentium® IV 1 GHz processor (Pentium IV 1.5 GHz is recommended)
    • Microsoft® Internet Explorer 5.x or greater
    • 512 MB RAM (1 GB RAM is recommended)
    • Windows® Vista or Windows XP Professional (SP2 or greater) operating system, including non-English implementations
    • A hard disk drive with at least 1.5 GB of free space (preferably 1024 x 768 resolution)
    • At least one available serial communications port

Applications:

  • Monitor and verify cleanrooms
  • Test filters in place
  • Investigate particle sources
  • Monitor Laminar Air Flow (LAF), biohazard benches, cleanroom laundries, HVAC systems, computer rooms, food and beverage packaging, hospital pharmacies, surgery rooms, Indoor Air Quality (IAQ), aerospace assembly, medical device assembly, automotive paint spray booths

FAQ's:
Q. Can the MET ONE Model 237 Series be used with a manifold?
A. No, manifold applications should be addressed with the MET ONE Model 3400 Series or the MET ONE  Model 2400 Series.
Q. Can the MET ONE 237 Series run on batteries?
A. Yes.   4 hours with printing, 8 hours without printing
Q. Can the MET ONE 237 Series be calibrated to 21501-4 ?
A. Hach does not offer ISO 21501-4 calibrations for the MET ONE 237 Series.  Customers requiring the performance benefits of ISO21501-4 should consider the MET ONE 3400 series.