KOMYO RIKAGAKU KOGYO K.K. PRODUCT INFORMATION(Multi-Gas Monitor:For prevention of oxygen deficiency, explosion, H2S & CO poisoning, suction type:MD-940)
Japanese Japanese Japanese
TOP_PAGE What's New Company Info Products Technical Info.

Portable Gas Monitors
Multi-Gas Monitor
For Oxygen/Combustible Gases/Hydrogen Sulphide/Carbon Monoxide
* MD-940
MD-940 Multi gas monitor to measure O2, Combustible gas, H2S, CO
  *Digitally displays 4 elements simultaneously
*Auto span calibration of O2 sensor, auto zero adjustment of Combustible gas sensor , H2S sensor and CO sensor and battery capacity check when power is switched ON
*2 power system (Alkaline batteries and AC 100V)
*Average measurement is possible
*Trend analysis is available with a data logger function


Measuring Gas Oxygen Combustible Gas Hydrogen sulphide Carbon monoxide
Measuring Principle Galvanic cell Catalytic combustion Chronoampetometry
Measuring Range 0.0-50.0vol% 0-100%LEL 0.0-50.0ppm 0-300ppm
Resolution 0.1vol% 1%LEL 0.1ppm 1ppm
Detectable accuracy Within ±0.5vol% at below 25.0%vol
Within ±3.0vol% at over 25.1%vol
Within 10%LEL Within ±1.5ppm at below 30ppm
Within ±3ppm at over 31ppm
Within ±10ppm at below 100ppm
Within ±10% of indicated value at over 101ppm
Alarm concentration below 18%vol 20%LEL 10ppm 50ppm
Alarm Method LCD display, LED Lamp and Buzzer
Response time Within 25 sec. at 90% response (excluding gas probe)
Power Source 4 × "D" size Alkaline batteries or AC100V adaptor
Continuous Operation time Alkaline batteries : approx. 35 hrs
Operating Temperature Range -10-40℃ (Humidity:30-85%RH, no condensation)
Main body dimensions 230 (W) X 165 (H) X  130 (D)mm (excluding handle)
Main body weight 2.8kg (alkaline batteries and sensors inclusive)