Product Features
The 770 is a state of the art carbon monoxide instrument designed to measure CO in ambient air. This palm-sized unit displays readings in 1ppm increments.
- Measure CO from O to 999ppm
- Displays the max. CO reading in PPM since power on
- Displays in hours and minutes, time elapsed since power on
- Displays user set value of audible and visual alarm
- The audible alarm can be switched on and off by pressing the SEL button
Note: This instrument meets the requirements of BS 7967.
Calibration is required every 12 months.
Model 770 Applications
Don’t expose yourself to Carbon Monoxide!
Review the list below for the maximum allowable exposure limits and symptoms developed with CO inhalation.
9ppm: The maximum allowable concentration for short term exposure in a living area according to ASHRAE
50ppm: The Federal OSHA standard for continuous exposure in any eight hour period.
200ppm*: Maximum concentration allowable any time according to OSHA. Slight headaches, fatigue, dizziness, nausea after 2-3 hours.
400ppm*: Frontal headaches within 1-2 hours, life threatening after 3 hours. Maximum allowable limit in flue gas according to EPA and AGA.
800ppm*: Headache, dizziness, nausea, and convulsions with 45 minutes. Unconsciousness within 2 hours. Death within 2-3 minutes.
1600ppm*: Headache, dizziness, and nausea within 20 minutes. Death within 1 hour.
3200ppm*: Headache, dizziness, and nausea within 5-10 minutes. Death within 30 minutes.
6400ppm*: Headache, dizziness, and nausea within 1-2 minutes. Death within 10-15 minutes.
12800ppm*: Death within 1-3 minutes.
* With exposure to this concentration and higher the effects can vary depending on size, age, sex, and health.
Model 770 Specifications
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Carbon Monoxide (CO) Measurement
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Range 0 ~ 999ppm
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Accuracy
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±3ppm or 5% of reading whichever is greater
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Resolution
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1ppm
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Data Storage
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No
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Elapsed Time Indicator
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Yes
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IR Printer Port
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No
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Flue Probe
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No
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Internal Pump
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No
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Combustible Gas Leak Detection
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No
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Backlight
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Yes
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Alarm
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Audible
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Power Supply
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1.5V AA (2)
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Dimensions
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1.5”x 6” x 2.75” (38.5 x 152 x 70 mm)
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Weight
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6.4oz (181.5g)
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Warranty
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3-year limited warranty
2-year sensor warranty
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