5. Model KN-COB-B-LS Operating Characteristics
Whenever the alarm is operating, the green Power LED flashes every 30 seconds to indicate the unit is monitoring for CO. If the alarm senses dangerous levels of CO, the red Alarm LED will flash and the alarm will emit an audible alarm pattern.
Operating and Alarm Characteristics
Function | LED Display | Alarm Sound | Unit Status | Recommendation | |
|
|
|
|
|
|
Normal | Green LED | None | Normal DC | None | |
Operation | flashes every 30 |
| operation (sensing |
| |
| seconds |
| no CO) and with |
| |
|
|
| good batteries |
| |
|
|
|
|
|
|
Carbon | Red LED flashes | 4 quick beeps, | Alarm condition. | Refer to “What to do | |
monoxide | with beeps. | 5 seconds | Dangerous | When the Alarm | |
alarm |
| silence, | concentrations of | Sounds” (inside front | |
|
| repeating | CO detected | cover) | |
|
|
|
|
|
|
Low | Red LED flashes | One quick | Batteries need to be | Replace all three AA | |
battery | every 30 seconds | beep every | replaced | batteries | |
|
| 30 seconds |
|
|
|
|
|
|
|
|
|
Error / | Red LED flashes | One quick | Unit is in error | Replace battery. | |
service | every 30 seconds | beep every | condition | If condition continues, | |
alarm |
| 30 seconds |
|
| unit has malfunc- |
|
|
|
|
| tioned. Replace |
Error | Red LED | Constant | Very low battery or | immediately. Unit will | |
| constantly on | alarm | unit malfunction | not respond to CO | |
|
|
|
|
| |
Normal | Red LED flashes | 4 quick beeps, | Normal operation | CO not detected. | |
Test/Reset | with beeps. | 5 seconds | when Test/Reset | Alarm for test | |
function | Green and amber | silence, | button is pressed | purposes only | |
| LED’s on | repeated once |
|
|
|
|
|
|
|
| |
End of | Red LED flashes | One quick | End of unit life | Replace unit immedi- | |
unit life | every 30 seconds | beep every 30 |
|
| ately. Unit will not |
indicator |
| seconds |
|
| respond to to CO |
|
|
|
|
|
|
6.Model
When the unit is first powered up, the green Operate LED flashes once every 30 seconds and the digital display will show three “eights” – indi- cating the alarm is in the
This alarm will display a “0” if CO concentrations between 0 and 30 PPM have been detected within the last 15 seconds.
6.Model
The following table illustrates the possible digital displays, describes the audible alarm patterns, and the recommended actions to take.
Operating and Alarm Characteristics
LCD Display Shows | Alarm Sound | Unit Status | Recommendation | ||
|
|
|
|
|
|
| A steady display of | 4 quick beeps, | Alarm condition. | Refer to “What to do | |
| |||||
| CO concentration | 5 secs. silence, | Dangerous | When the Alarm | |
| from | repeating for 4 | concentrations of | Sounds” (inside front | |
LED flashes with beep | min.– then 4 | CO detected | cover) | ||
|
| quick beeps |
|
|
|
|
| every minute |
|
|
|
|
|
|
|
|
|
| Brief “888” for | None | Self test when first | None – CO has not | |
| |||||
| approximately 30 |
| powered up | been detected. | |
| seconds |
|
|
| Numbers shown for |
|
|
|
|
| test purpose only |
|
|
|
|
|
|
| A random number | 4 quick beeps, | Test/Reset button is | None – CO has not | |
| |||||
| is displayed – | 5 seconds | pressed | been detected. | |
| approximately 200 | silence, |
|
| Numbers shown for |
|
| repeated once |
|
| test purpose only |
|
|
|
|
|
|
| Steady “0” | None | Normal DC | None | |
| |||||
| displayed, dot flash- |
| operation with |
| |
| ing every 5 seconds, |
| good batteries |
| |
Green LED flashes every 30 secs. |
| (sensing no CO) |
| ||
|
|
|
|
|
|
| “Lb” flashes alter- | One quick beep | Batteries need to | Replace all three AA | |
| |||||
| nately with any | every 30 seconds | be replaced | batteries immediately | |
| number, Red LED |
|
|
|
|
flashes every 30 seconds. |
|
|
|
| |
|
|
|
|
|
|
| “Err” displayed | One quick beep | Unit is Error condi- | Replace batteries. | |
| |||||
|
| every 30 seconds | tion | If “Err” (or blank | |
|
|
|
|
| display) continues, |
|
|
|
|
| unit has malfunc- |
|
|
|
|
| tioned. Replace |
|
|
|
|
| immediately. Unit will |
| Display is blank | Constant alarm | Unit malfunction | ||
| not respond CO | ||||
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
| |
| Number from 11- | None | Peak Level Memory | Refer to following | |
| |||||
| 999 displayed. |
| activated. Highest | section for informa- | |
|
|
| concentration of | tion regarding Peak | |
|
|
| CO detected is dis- | Level Memory | |
|
|
| played |
| |
|
|
|
|
| |
| “End” displayed. | One quick beep | End of unit life | Replace unit immedi- | |
| |||||
| Red LED flashes | every 30 seconds |
|
| ately. Unit will not |
| every 30 seconds |
|
|
| respond to CO. |
The problems listed above are under normal operating conditions. Other “Err” conditions could exist. If you should have any questions regarding display conditions, call our Consumer Hotline.