Edwards Signaling 250 CO Series Catalog
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View PDFConventional Fire Alarms Carbon Monoxide Detector 250 Series
The Edwards SafeAirTM 250-CO carbon monoxide (CO) detector is a device designed to alert building occupants of potentially dangerous levels of CO in the protected area. The internal electro-chemical sensor communicates with an on-board microprocessor which tracks CO levels over time. The 250-CO selfadjusts for indoor environmental changes and monitors its own performance, automatically compensating for sensitivity drift throughout the course of its service life.
An integrated temporal four-horn provides local signaling capability for the 250-CO. It interfaces with any listed intrusion or fire alarm system by means of its 150mA output relay, which may be connected to the auxiliary input on the control panel.
The 250-CO features a six-year end-of-life timer that will automatically trigger a warning, locally, at the control panel, and optionally, at a central monitoring station, indicating that the device should be serviced.
The 250-CO complies with UL 2075 requirements, making it suitable for use in residential and commercial applications.
Features and Specifications
- Electro-chemical sensing technology
- Self-diagnostics
- SafeTestTM functional test feature enables full functional test with CO gas
- Built-in trouble/power supervision relay
- 150mA relay contact configurable for normally open or normally closed operation
- Long-life six-year sensor
- Transmits sensor end-of-life to the control panel and central station if the system is monitored
- Complies with UL 2075 CO standard
- One-touch TEST/HUSH button
- Integrated 85 dBa temporal 4-sounder for local notification
- On-board LED provides local alarm and trouble indication
- Operating temperature range: 32°F to 104°F (0°C to 40°C)
| Ordering Information |
| Description | Cat. No. |
Operating
Voltage |
Current
(Standby) |
Current
(Alarm) |
Alarm
Relay |
CO Alarm
Level |
db at
1m/10ft. |
Wire Size |
|---|---|---|---|---|---|---|---|---|
| Carbon Monoxide Detector | 250-CO | 12/24V DC | 0.020 A | 0.04 A |
0.15 A @ 12/24V DC
Form C |
70ppm
/60-240 min. |
95/85 | 14-22 AWG |
| Accessories | |
|---|---|
| Description | Cat. No. |
| Adaptor Plate | 250-COPLT-5PKG |
| Functional CO Gas Test Spray | CO Gas Test Spray* |
* Available from SDI through security distribution (www.sdifire.com)
Weights and Dimensions
| Approx. Shipping | Dimensions | |||||
|---|---|---|---|---|---|---|
| Cat. No. | Weight (lb.) | Width (in.) | Length (in.) | Height (in.) | ||
| 250-CO | 0.50 | 3.1 | 4.6 | 1.3 | ||
| 250-COPLT-5PKG | 0.13 | 4.5 | 6.5 | 0.2 | ||
