Weatherall Equipment & Instruments Ltd : Gas Detection - Optical Gas Indicator - FI-21


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	Model:

Weatherall Equipment & Instruments Ltd

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Optical Gas Indicator

Download PDF:

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.

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