RA100-L Remote Strobe and Siren Alarm
Audible and
Visual Alarms

For use with lightning
warning system
weather applications water applications energy applications gas flux & turbulence applications infrastructure applications soil applications

Overview

The RA100 Remote Strobe and Siren Alarm provides visual and audible signals of alarm or status conditions. The red, amber, and blue strobes are SAE Class II LED beacons with a 100,000 hour rated lifetime and an average current drain of 0.26 A at 12.8 Vdc. The 120 dB siren has a current draw of 0.62 A at 12 Vdc, but is typically on 3 s out of 120 s, allowing the average current drain to be less than 0.02 A. The strobes and siren are mounted to 58 in. aluminum tubing that has a painted irridite and black powder coating for looks and durability.

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An SDM-CD8S 8-Channel Solid-State DC Controller is required when the RA100 is not used in an LW110 or RA110 system.

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Detailed Description

While the RA100 is typically part of the LW110 Lightning Warning System or the RA110 Remote Alarm System, it can be purchased as a stand-alone item for many applications. It is easily powered and controlled by a Campbell Scientific datalogger and the SDM-CD8S 8-Channel Solid-State dc Controller.

Specifications

LED Beacons

Rated Lifetime 100,000 h
Colors Red, amber, blue
Current Drain 0.65 (peak), 0.26 (average) @ 12.8 Vdc
Diameter 14 cm (5.5 in.)
Height 16.3 cm (6.4 in.)

Siren

Sound Output 120 dBA
Operating Temperature Range -20° to +65°C (-4° to +149°F)
Operating Voltage 4.8 to 14.4 Vdc
Current Drain 620 mA (maximum)

Pole

Material Aluminum tubing with irridite and black powder coating
Dimensions 1.5 x 7.6 x 3.8 cm (4.8 x 3.0 x 1.5 in.)

LED Backplate

Material Aluminum
Dimensions 19.1 x 30.5 x 30.5 cm (7.5 x 12 x 12 in.)

Siren Backplate

Material Aluminum
Dimensions 12.7 x 12.7 x 0.5 cm (5 x 5 x 0.2 in.)

Mounting Bracket for Mounting to Flat Surface

Material 12 gage stainless steel
Dimensions 13.9 x 4.0 x 3.2 cm (5.5 x 1.6 x 1.3 in.)

Extension Pole

Material Aluminum tubing with irridite and black powder coating
Wind Load 233.4 kph (145 mph) wind gust or 180.3 kph (112 mph) steady winds with a safety factor of 1.25

Assumes 158.8 kg (350 lb) pullout strength of the customer-supplied 0.635-cm (0.25-in.) expansion bolts, the top mounting bracket installed just below the joint, and the bottom mounting bracket mounted at least 0.61 m (2 ft) below the top bracket.
Dimensions 1.15 m x 7.6 cm x 3.8 cm (3.5 ft x 3.0 in. x 1.5 in.)

Compatibility

While the RA100 is typically part of the LW110 Lightning Warning System or the RA110 Remote Alarm System, it can be purchased as a stand-alone item for many applications.

Synchronous Devices for Measurement (SDMs)

An SDM-CD8S 8-Channel Solid-State DC Controller is required when the RA100 is not used in an LW110 or RA110 system. To communicate with connected SDM devices, the CR3000 and CR5000 use the SDM-C1, SDM-C2, and SDM-C3 ports. The other dataloggers use ports labeled C1, C2, and C3. The 21X also requires channel 1H.

Datalogger Considerations

Compatible Contemporary Dataloggers

CR200(X) Series CR800/CR850 CR1000 CR3000 CR9000X
**

Compatible Retired Datalogger

CR500 CR510 CR10 CR10X 21X CR23X CR9000 CR5000 CR7X
** *

Datalogger Notes:
*For the CR7, the required SDM-CD8S connects to the C1, C2, and C3 terminals provided on the CR700X control module (after September 1996).

**The CR9000X and CR9000 are compatible but the RA100 requires the SDM-CD8S and the SCM-CD8S does not support the CR9000(X)'s fastest communication rates. Therefore, the RA100 is not practical for most of the CR9000(X)'s applications.

Case Studies

Utah: Lightning Warning at Schools
Lightning strikes are a serious concern for school officials who are responsible for protecting the......read more

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