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Multi Gas Monitor GX-2012 Riken Keiki |
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Specifications |
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Gas Detected |
Combustible Gases |
% Volume |
Oxygen ( O2 ) |
Hydrogen Sulfide ( H2S ) |
Carbon Monoxide |
( Methane as standard ) |
Methane |
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Detection Principle |
Catalytic combustion |
Thermal conductivity |
Galvanic cell |
Electrochemical cell |
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Detection Range |
0 ~ 100 % LEL |
0 ~ 100 % Vol. |
0 ~ 40 % Vol. |
0 ~ 100 ppm |
0 ~ 500 ppm |
0 ~ 500 / 1,000 / 2,000 / 5,000 ppm |
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Accuracy Statement |
± 5 % of reading or |
± 5 % of reading or ± 2 % of full scale |
± 0.5 % O2 |
± 5 % of reading or ± 2 ppm H2S |
± 5 % of reading or ± 5 ppm CO |
( whichever is greater ) |
± 2 % LEL ( LEL mode only ) |
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Sampling Method |
Internal sample pump, flow rate nominal 0.5 LPM, includes hydrophobic filter |
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Display |
Digital LCD with 7 segments, auto backlight during alarm |
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Preset Alarms |
1st alarm 10 % LEL |
No alarms for |
Low alarm 19.5 % High alarm 23.5 % Over alarm 40.0 % |
1st 5 ppm |
1st 25 ppm |
( User Adjustable ) |
2nd alarm 50 % LEL |
% Vol. CH4 |
2nd 30 ppm |
2nd 50 ppm |
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Over alarm 100 % LEL |
TWA 10 ppm |
TWA 25 ppm |
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STEL 15 ppm |
STEL 200 ppm |
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Over 100 ppm |
Over 500 ppm |
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Alarms Types |
Gas alarms: 1st and 2nd, STEL, TWA ( user adjustable ) and OVER |
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Trouble alarms: Sensor connection, low battery, low flow, circuit trouble and calibration error |
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Alarm Methods |
Gas alarms: Flashing lights, two tone buzzer, and vibration |
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Trouble alarms: Flashing lights, trouble displayed, intermittent buzzer, and vibration |
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Operating Temp. & Humidity |
-20 °C to +50 °C ( -4 °F to 122 °F ) |
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0 to 95 % RH, non-condensing |
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Response Time |
Within 30 seconds ( T90 ) |
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Continuous Operation |
Alkaline battery : 15 hours Li-Ion battery : 10 hours |
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70 °F ( 21 °C ) |
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Power Source |
Li-Ion battery pack, or 3 “AA” Alkaline battery pack; interchangeable |
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Safety Rating |
ATEX, TIIS, IECEx, and CE or optionally: CSA classified as intrinsically safe. Class I, Division 1, Groups A, B, C, D, and CE |
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Note: Either ATEX (USA and worldwide) or CSA (Canada) version must be specified when ordering. |
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Dimension & Weight |
Approx. 143 ( H ) x 71 ( W ) x 43 ( D ) mm ( 5.6” H x 2.8” W x 1.6” D ), approx. 350 g ( 12.3 ounces ) |
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Case Material |
High dust & water resistant design. RFI shielded high impact plastic with protective rubber overmolding |
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Controls |
Five buttons: POWER / ENTER, DISPLAY, AIR, RESET, SHIFT |
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Standard Accessories |
• Belt clip |
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• 10” Probe |
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• 10’ Hose |
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Optional Accessories |
• SDM-2012 calibration stations |
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• Li-Ion battery pack |
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• Sample draw hoses ( 10’ standard, |
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Configurations |
1, 2, 3, 4, or 5 sensor units |
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Li-Ion or alkaline battery pack options |