Indoor air quality monitors

Air sampler
* S-21
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Currently, measurements for concentration of formaldehyde is done most commonly by absorptiometric method or HPLC (high performance liquid chromatography) method.
However, these methods require expensive devices, knowledge and experience.
Furthermore, in detector tube method which is effective as a simple measurement, up to this date it had been impossible to detect and measure the trace amount of formaldehyde at the indoor pollution level.
With Air sampler S-21, this newly developed detector tube is capable of measuring within the range of 0.01 - 1.2ppm. And it covers the indoor environment suggested value by WHO, which is 0.1mg/m3 (0.08ppm 30min average).

* SPECIFICATIONS
 
Model Number Air sampler S-21
Sampling pump diaphram
Maximum suction pressure more than 400hPa (At full load)
Flow rate settings range 50 - 500mL/min
Flow Meter Accuracy ア5% of full scale
Repeatability of Flow Meter ア1% of indicated value
Timer function 1min.99hrs.59min. with Digital setting (addition display) 
*It is set to stop after 30 minutes with the shipment settings
  display; subtraction display
Operating temperature range orange to red-purple
Power source 0 - 40C
Dimensions 125(W) x 146(H) x 220(D)mm
Weight 2.5kg
Option Position pole to keep measuring height, Tip cutter : B191 and Thermometer

* S-23E
  image4
* SPECIFICATIONS
 
Model Number Air sampler S-23E
Sampling pump Diaphram
Maximum suction pressure More than 40kPa (At full load)
Gas sampling control mode Time mode : Automatic pump stop by timer presetting (Accumulated volume indication available)
Accumulated mode : Automatic pump stop by accumulated volume (Suctioning time indication available)
Display Digital display by LCD
Measuring and display
at momentary flow
Flow setting by needle valve
Measuring range : 0.00-1.10 L
Minimum display : 0.01L
Measuring and display
at sampling flow
Measuring range : 0.00-9999 L
Minimum display : 0.01L
Time setting range
(Resolution)
Measuring range : 00.00:99.59(hr:min)
Minimum display : 1min
Remaining time display : Display subtraction/addition (Preset value when shipped from factory is subtraction)
Operating temperature 0 - 40 C
Power supply Voltage AC100V 50/60Hz
Main body dimensions 130(W) x 270(H) x 283(D) mm
Main body weight Approx. 4 kg
Height for measuring 930mm (without detector tube and connecting tube)
1,000 - 1,050 mm (with detector tube)
Option 1.Tip cutter 2. Thermometer
3. Alminium case 4.Extension adapter

* ASP-1200
  image4

Air sampler ASP-1200 is designed to be used with detector tubes, DNPH tubes and/or charcoal tubes for working environment measurement.
  • The lightest and most compact air sampler of the identical products
  • Enhances dust proof and water proof capabilities (equivalent to "IP54")
  • High suction power
  • Large and light display
  • USB connector
  • Simple operation with crisscross key

* SPECIFICATIONS
 
Model No. Air sampler ASP-1200
Flow volume setting range 10-1200mL/min(constant flow)
Flow volume accuracy 10-100mL/min : ±5mL/min
0-1200mL/min : ±5%
Accumulated flow volume indication range 0.0L-9999.9L
Accumulated time indication range 00:00-999:59(hour:minute)
Sampling pump Diaphragm type suction pump
Built-in flow meter Mass-flow sensor
Performance Displays momentary flow rate,
             accumulated flow volume
             sampling time
Sets fixed volume
Converts temperature(20/25 degrees C)
Calibrates flow volume
Pause, Key lock
Timer Set start-time and end-time
Operating Temp. & Humidity 0-40 degrees C; 0-90%RH(non-condensing)
Power supply 4 x AA size battery(alkaline, nickel metal-hydride, or lithium) or AC power(100V)
Operating time 12 hours continuously(no-load status at 1200mL/min) with alkaline dry batteries
Size & Weight 145(W) x 99(H) x 54(D)mm 490g (including batteries)
Standard accessories AC adaptor(AC 100V 50/60Hz USB Micro-B connector)


Detector tubes for Air samplers
* Detector tubes
Application Gas to be measured Tube No. (*) Measuring range
Indoor air pollutants Formaldehyde 710 Formaldehyde 20 0.01-0.48ppm
Formaldehyde 710A Formaldehyde 20 0.05-2.0ppm
Formaldehyde 713 Formaldehyde 20 0.01-0.50ppm
Toluene 721 Toluene 10 0.05-1.0ppm
Xylene 721 Toluene (+) 10 0.1-1.4ppm
Ethyl benzene 721 Toluene (+) 10 0.05-1.0ppm
p-Dichlorobenzene 730 p-Dichlorobenzene 10 0.01-0.40ppm
Nitrogen dioxide 740 Nitrogen dioxide 10 0.01-0.20ppm
For museums Ammonia 900NHH Ammonia 10 10-80µg/m3
For clean room monitoring Ammonia 901NHL Ammonia 10 1-12µg/m3
For museums Organic acid 910 Organic acid 10 Acetic acid 10-1,000µg/m3; Formic acid 20-800µg/m3
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