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Optical Gas Indicator

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Riken Keiki
Portable Gas Monitor FI-21 series

Application

  • Anaesthetics
    (checking and calibrating
    anaesthetic vaporizers)
  • Fumigation
  • Gas purity
  • %LEL solvent gases
  • Vol% solvent gases
Features
  • Capable of measuring up to 8 kinds of gas
  • Gas can be selected by simple key operation
  • Easy to see digital display
  • Built-in sampling pump
  • High accuracy with CCD and Fourier analysis technology
  • Data logging stores up to 100 readings
  • Few moving parts saves on maintenance cost

 

English Datasheet
Operator's Manual
Datalogging Manual
FI-21

Gases Detected

Type Application Measuring gas Range Minimum digit
Type-51 Vol% solvent gases Toluene C7H8 in air
Methyl ethyl ketone MEK in air
Ethyl acetate EtAc in air
Xylene C8H10 in air
Isopropyl alcohol IPA in air
Methyl isobutyl ketone MIBK in air
Methanol CH3OH in air

0-2vol%
0-5vol%
0-5vol%
0-1vol%
0-2vol%
0-1vol%
0-1vol%

0.002vol%
0.005vol%
0.002vol%
0.002vol%
0.005vol%
0.002vol%
0.02vol%
Type-52 %LEL solvent gases Toluene C7H8 in air
Methyl ethyl ketone MEK in air
Ethyl acetate EtAc in air
Xylene C8H10 in air
Isopropyl alcohol IPA in air
Methyl isobutyl ketone MIBK in air
Methanol CH3OH in air

0-100%LEL
0-100%LEL
0-100%LEL
0-100%LEL
0-100%LEL
0-100%LEL
0-100%LEL

0.2%LEL
0.2%LEL
0.2%LEL
0.2%LEL
0.2%LEL
0.2%LEL
0.2%LEL
Type-53 Fumigation gases Methyl bromide CH3Br in air
Phosphine PH3 in air
Methyl iodide CH3I in air
Methyl bromide CH3Br in air
Propylene oxide PO in air
Sulfuryl Flouride SO2F2 in air

0-200mg/l
0-50mg/l
0-200mg/l
0-5vol%
0-10vol%
0-200mg/l

0.2mg/l
0.1mg/l
0.2mg/l
0.005vol%
0.005vol%
0.2mg/l
Type-54 Gas purity Helium He in air
Neon Ne in air
Hydrogen H2 in air
Methane CH4 in air
Carbon dioxide CO2 in air
Ammonia NH3 in air
Hydrogen H2 in N2
Hydrogen H2 in CO2

0-100vol%
0-100vol%
0-100vol%
0-100vol%
0-100vol%
0-100vol%
0-100vol%
0-100vol%

0.05vol%
0.1vol%
0.1vol%
0.1vol%
0.1vol%
0.2vol%
0.1vol%
0.05vol%
Type-55 Anaesthetic gases Halothane in O2
Isoflurane in O2
Sevoflurane in O2
Desflurane in O2
Halothane in air
Isoflurane in air
Sevoflurane in air
Desflurane in air
0-6vol%
0-8vol%
0-10vol%
0-20vol%
0-6vol%
0-8%vol
0-10vol%
0-20vol%
0.01vol%
0.01vol%
0.01vol%
0.02vol%
0.01vol%
0.01vol%
0.01vol%
0.02vol%

 

Specifications

Model FI-21
Detection principle Optical interferometric method
Display Digital display (Measuring gas, base gas, gas concentration, time, etc.)
Structure Non-explosion proof
Measuring method Batch measurement
Gas sampling method Suction by internal pump (pump stops operation while reading)
Indication accuracy Within +/- 3% of the indicated value +/- 1 digit
Outputs Data logger, 0-1 VDC
Data logging function Day, time (24hr) and measurement results. Max. recording: 100 data points
Operating temp. & humidity 5-35°C, below 80%R.H.
Operating pressure Atmospheric pressure
Power source C size alkaline batteries (4pcs) or AC adaptor (option)
Battery life Approximately 20 hours (without sampling)
Dimensions & Weight 200 mm(w) x 80 mm(h) x 145 mm(d), 2kg
Standard accessories Carrying case, absorption tube, sampling hose, C size alkaline batteries (4pcs), sampling T-piece (for anaesthetic application only)
Optional accessories AC adaptor, data logger software, cable for data logger

Specifications subject to change without notice.