The STI-CIS Analyser measures the speech intelligibility of a fire alarm evacuation signal. To measure overall speech intelligibility, the STI-CIS Analyser uses the STI measurement method to factor in the effects of the warning system, room acoustics (reverberations and echoes) and background noise. The STI-CIS Analyser comes equipped with its own microphone and LED display and has buttons to activate dBA and CIS measurements. There is provision for a PC interface (RS-232) for use with the STI-CIS Noise Effect Correction Software Tool.
The TALKBox is used to send the STI-PA test tone into the fire alarm warning system. It interfaces with the system through its microphone input. A linelevel output is also available for systems with direct line inputs. The TALKBox comes equipped with its own CD player and speaker. The CD player has controls to Play, Rewind, and Fast Forward the CD with STI-PA test tone (supplied). However, pressing Play on the CD player is all that is required to play the test tone once you insert the STI-PA Test Tone CD into the CD player. Power is supplied to the TALKBox through a DC power supply (connected to the Ext. Power socket) or batteries. The TALKBox operates a minimum of 18 hours on eight AA alkaline batteries.
Specifications – Analyser
– Ambient Temp 0 to 50°C
– Power Supply 8 x AA batteries/AC adaptor
– Dimensions (HWD) 410 x 250 x 70mm
Specifications – TALKBox
Power Supply 12Vdc, 190mA via 8 x AA batteries or AC adaptor at 500mA (12Vdc, tip positive) *
SPL Output 0 dB to 100 dBA (STI-PA test tone)
Ambient Temp 0 to 50°C
Dimensions (HWD) 470 x 360 x 180mm
* 92dB(A) STI-PA tone out