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Summary of Contents for Extech Instruments CO40
- Page 1 USER GUIDE Portable Carbon Monoxide (CO) Meter Model CO40 ...
- Page 2 EXTECH INSTRUMENTS Introduction Thank you for selecting the Extech Instruments Model CO40. The CO40 simultaneously measures CO concentration and Air Temperature. The CO40 is designed using vented ball technology for fast response (<30 seconds) for sensing CO gas. The user‐programmable high alarm alerts the user if the CO level rises above the programmed limit. This device is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit our website (www.extech.com) to check for the latest version of this User Guide, Product Updates, and Customer Support. Features Portable meter capable of measuring CO and temperature accurately Measures CO (0~999ppm) with alarm (alarm default 30ppm) Dual display indicates air temperature and CO Adjustable CO alarm threshold (0 to 999ppm) with audible beeper Electrochemical, vented ball CO sensor technology ...
- Page 3 EXTECH INSTRUMENTS Meter Description Sensors LCD Display area HOLD Button / Up arrow button MODE / Left Arrow Button SET Button AC adaptor jack Tripod Mount POWER ( ) Button (Max Reading) / Right Arrow Button 10. UNIT Button 11. Down Arrow Button Note: Battery compartment on rear CO40‐en‐GB_v1.3 12/14 ...
- Page 4 EXTECH INSTRUMENTS Operation Powering the meter Momentarily press the button to power on the meter. Hold the button for 2 seconds to turn off the meter. During measurement, if the alarm is sounding (audible beeper) press the button momentarily to turn off the beeper. Press again to activate the beeper. The alarm beeper is set to ON by default. The meter can be powered by 4 AAA batteries or AC adaptor. Auto Power Off The CO40 will automatically turn off after 15 minutes of inactivity. To disable the auto power off function: With the meter OFF, press and hold the HOLD button and then press the Power button. The LCD will show “n”, and will then return to normal measurement mode. Measurements When the meter is turned on a self‐test is performed as the LCD counts from “9999” down to “0000” and then enters the normal mode of operation where measurements are taken by the sensors and displayed on the LCD. The upper LCD area shows the CO reading in ppm and the lower LCD area shows the air temperature reading in F units of measure. Selecting F units of measure ...
- Page 5 Disposal: Do not dispose of this instrument in household waste. The user is obligated to take end‐of‐life devices to a designated collection point for the disposal of electrical and electronic equipment. CO40‐en‐GB_v1.3 12/14 ...
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Page 6: Specifications
CO Response time < 30 seconds CO accuracy ±5% of reading or ± 10ppm CO Resolution 1ppm Temperature sensor Thermistor Temperature range ‐10 to 50°C (14 to 122°F) Temperature accuracy 0.6°C (±1.2°F) Temperature resolution 0.1°C (0.1°F) High CO Alarm Audible alert when CO level rises above programmed limit (user‐ programmable from 0 to 999ppm; default is 30ppm) Memory Maximum reading (MAX) Hold and Data Hold Power Four (4) AAA batteries (with low battery indication) or AC Adaptor Operating Temperature and Relative Humidity 0 to 50°C (32 to 122°F); 10~90%RH Storage Temperature and Relative Humidity ‐40 to 70°C (‐40 to 158 °F); 0 ~ 95% RH Dimensions 211 x 60 x 40mm (8.3 x 2.4 x 1.6”) Weight 181.4g (6.4 oz.) Copyright © 2014 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form www.extech.com CO40‐en‐GB_v1.3 12/14 ...
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