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3M Occupational Health and Environmental Safety Division 3M™ Multi-Gas Detector 740 Series Rugged Safety The 3M™ Multi-Gas Detector 740 Series is designed for ease-of-use, durability, convenience and low operating cost. For the Safety of Your Team in Confined Spaces 3M™ Technology Safety First The 3M™ Multi-Gas Detector 740 Series is designed for ease-of-use, We’ve equipped the 3M 740 detector with a 95 dBA alarm, durability, convenience and low operating cost. It’s the ideal companion dual red LED warning lights and a vibrate mode to get immediate for workers on industrial sites or in confined work spaces – scenarios attention in a busy work environment. where potentially hazardous levels of CO, H2S, O2, or combustible gases may be found. Apart from its power to detect up to four gases at a time, the 740 Maximum Endurance The 3M 740 detector features remarkable staying power with long-lasting lithium-ion batteries. Now, you can rely on your detector to provide over series detector features a bright, readable display, pre-calibrated sensor eighteen hours of run time. What’s more, you can easily swap in three replacement packs, and heavy duty construction. Simply put: it’s smart 3M recommended AAA alkaline batteries on the job if needed. technology that you can count on to do its job, so you can focus on doing yours. Great Features and Accessories The 3M 740 detector offers a quality instrument with a low operating All 3M 740 detectors come with standard rechargeable Li-ion battery, cost, which is good news for your employees and your business. charger adapter, visual, auditory, vibratory alarms, data logging, rugged alligator clip, infrared port, gas test hood, and instruction manual. Unsurpassed Convenience The 3M 740 detector makes it easy to replace sensors with a Easy Maintenance unique Pre-Calibrated 3M Smart Sensor Pack. Why bother with Stay ready with simply the push of a button: over time or with heavy individual sensors when you can replace all the sensors with one use, sensors in any gas detector need to be calibrated or replaced. convenient insert in minutes? The 3M 740 detector test mode helps ensure your unit is accurately measuring the target gas. Built Tough The 3M 740 detector sensors are stingy when it comes to using Tough jobs demand tough equipment. The 3M 740 detector is built calibration gas for testing. With a recommended flow rate of 0.2 with a rugged circuit board design and a heavy rubberized casing that liters per minute, the 3M 740 detector can help reduce your overall helps deliver superior durability and protection against dropping, dust operating costs. and liquids. 3M recommends the 740 detector be bump tested or sensor tested every day before use to help ensure accurate operation. Designed Long Memory The 3M 740 detector’s long memory allows you to maintain more than 1000 hours (six months) of data on usage, exposure levels, and other important site conditions. for maximum durability 3M™ Multi-Gas Detector 740 Series 1 Power/Select Button Sensor Opening Filters 9 Aids against moisture and dust intrusion. Test Button Belt Fastener and Loop 10 Holds secure to clothing when worn on job sites. Loop can be used to lower unit into confined spaces. Peaks/No Button Used for accessing Peak menu and “down” arrow when changing settings and responding “NO” to questions. 4 10 8 Power Jack Uses universal 110-240 VAC power supply or 12 Volt Vehicle Wiring Kit. 5 9 1 LCD Readout 2 Easy to read digital display. 6 CH4 Brilliant red light for visual warnings. Used for accessing the sensor test menu and “up” arrow when changing settings. 3 CO Highly Visible Red LEDs 8 Used for turning the 3M 740 detector ON and OFF, accessing download menu, silencing alarms and warnings, and responding “YES” to questions. 2 O2 H2S 3 7 IR Window Quickly transfers data logging information. 7 95 dBA Buzzer Loud audible warning for noisy environments. 6 5 4 Gas Sensor Specifications Sensor Factory Default Alarm Level Display Range Reading Resolution Factory Default STEL Alarm Level Factory Default TWA Alarm Level Operating Temperature Range Carbon Monoxide 35 ppm 0 – 1500 ppm 1 ppm 200 ppm 35 ppm -4 to 122 ºF (-20 to 50 ºC) Hydrogen Sulfide 10 ppm 0 – 200 ppm 1 ppm 15 ppm 10 ppm -4 to 122 ºF (-20 to 50 ºC) Combustible Gases* 10% LEL 0 – 100% LEL 0-5% v/v methane 1% LEL Not Applicable Not Applicable -4 to 122 ºF (-20 to 50 ºC) Oxygen 19.5% (Low) 23.0% (High) 0 – 25% 0.1% Not Applicable Not Applicable -4 to 122 ºF (-20 to 50 ºC) * Factory calibrated to methane. Standard Features and Accessories Specifications Specifications Display LCD with designated line for each sensor reading Battery 3M Standard – rechargeable Li-ion; Optional – 3M recommended Alkaline (AAA batteries) Operating Time Up to 18 hours Readings Peaks, STEL, TWA, Instantaneous Gas Levels Dimensions 4.8" x 2.7" x 1.4" (122 mm x 69 mm x 36 mm) Sensors Combustible % LEL (catalytic bead); O2, CO, and H2S (electrochemical) Weight Alarms/Indicators Operating Temperature -4 ºF to 122 ºF (-20 ºC to 50 ºC) Operating Humidity 15-90% non-condensing Hazardous Area Rating Intrinsically safe – Class 1, Division 1, Groups A, B, C, and D; T3 C22.2; CSA approval Data Logging Memory 1.2 MB (6 months of data at 1 minute intervals per 40 hours/week) Ingress Protection IP65 10.4 ounces (292 g) Radio Frequency Protection