The Hochiki CHQ-WS2 is an addressable, loop-powered wall sounder for Hochiki ESP intelligent fire alarm systems, supplied in a red case. It offers 51 tones and 8 volume levels with a maximum output of 102 dB(A) (±2 dB(A)) and low current consumption. The sounder fits the standard red sounder base YBO-R/3(RED) or the isolator base YBO-R/SCI(RED), both available separately.
Key features
- Loop powered, single loop address - addressed with a hand-held programmer
- Variable sound output 90-102 dB(A) (±2 dB(A)) at 1 m
- 51 user-selectable tones, all EN 54-3 compatible
- Auto-shutdown mode to limit noise pollution (panel compatibility required)
- IP21 for internal use; can be made weatherproof with the CHQ-WPK weatherproof kit
- Approved by LPCB and VdS
Technical specifications
- Operating voltage: 17-41 V DC
- Quiescent current (typical): 150 µA with YBO-R/3(RED); 200 µA with YBO-R/SCI(RED)
- Sounding current (typical): 2 mA (90 dB(A)) to 8 mA (102 dB(A)) at 1 m
- Sound output at 1 m: 90-102 dB(A) (±2 dB(A)) at 24 V DC or above
- Number of tones: 51
- Tone frequency range: 300-2850 Hz
- Operating temperature: -10°C to +50°C
- Storage temperature: -30°C to +70°C
- Maximum humidity: 95% RH, non-condensing (at 40°C)
- Ingress protection: IP21 (IP65 with weatherproof kit)
- Case: red PC ABS
- Dimensions: 112 mm diameter x 67 mm deep
- Weight: 152 g
- Base fixing centres: 48-74 mm
