KOMYO RIKAGAKU KOGYO K.K. PRODUCT INFORMATION(Combustible Gas Monitor (Hydrogen):For explosion prevention, explosion-proof, suction type(Hydrogen):FM-619E)
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Portable Gas Monitors
Combustible Gas Monitor (Hydrogen)
For prevention of combustible gas explosion, suction type
* FM-619E
  • Monitors Hydrogen concentration in inert gas
  • Delivers alarm with bright LED flickers,
    in operation(GREEN), alarm(RED), trouble(ORANGE)
  • Large LCD display for easy reading
  • Powerful suction pump, fast response time
  • Ex Explosionproof construction


Measuring Gas Hydrogen(H2)
Measuring Principle Chronoamperometry
Sampling Method Suction type Approx. 0.6L/min (at room temperature with 2.4m gas sampling tube with a sampling probe)
Measuring Range 0-100%LEL
Resolution 1%LEL
Detectable accuracy ±10%LEL
Concentration display LCD Digital
Aralm accuracy ±10%LEL
Alarm Concentration 20%LEL
Alarm Method LCD display, LED Lamp and Buzzer
Response Time Within 25 seconds at 90% response from sampling gas inlet at 20°C
Explosionproof ExiaII CT4X(No.TC19531)
Operating Temperature Range -10-40°C; below 95%RH (non-condensing)
Pressure range 80-110kPa
Power Source 3 × "AA" size Alkaline batteries(LR6)
Continuous Operation time Alkaline batteries : approx. 20 hrs (no alarm)
Main Body Dimensions 78 (W) X 200 (H) X 50 (D)mm
Main Body Weight Approx. 550g (including batteries)
Standard Accessories Gas sampling tube with sampling probe(2.4m), leather case, carrying case