Model 7
C3 1/2
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| Company | Federal Signal Corporation |
|---|---|
| Produced | 1938-1987 |
| Type | Electromechanical |
| Sound output | 113 or 108[1] dBc at 100 feet |
| Frequency | 690 (Single Tone) 690/517.5 (Dual Tone) [1] Hz |
| Horsepower | 7.5[1] |
| Documentation | Manual |
The C3 1/2, or commonly known as Model 7 or Model 5 was a 5, 7.5, and sometimes 10 horsepower, mechanical, omnidirectional siren produced by Federal Signal Corporation part of the Fedelcode lineup. The rotor in the C3 1/2 is 18" and shares it with the 500DHTT.
Model 7 was available in 3 different chopper configurations: 8 port single tone, 12 port single tone, and 9/12 port dual tone. The siren was housed in a very simple enclosure that resembles an air vent found on building roofs. The housing came in either painted steel or stainless steel.
- ↑ 1.0 1.1 1.2 (PDF) Service Manual for Models 2, 7, SD10, STH10, STL10. Federal Signal Corporation. Retrieved October 22, 2017.