BA-202-25


BA-202-25

The TSI BA-202-25 is a bio-acoustic simulator for daily audiometer verification, capable of performing OSHA level verifications. This device lets you perform daily audiometer checks without the need for a human test subject. The unit can be used as a portable tabletop unit or can be mounted on the wall.
  • Test frequencies 125 Hz to 8 kHz
  • 9V alkaline battery or 120V/220VAC current with optional adapter
  • Low battery indicator to avoid service interruption
  • 10-foot microphone cable facilitates mounting options other than standard in-room wall mounting
  • CE approval
Test Frequencies125 Hz to 8 kHz
Background Test Levels (BA-202-25) 40 dB at 500 Hz and 1 kHz, 47 dB at 2 kHz, 57 dB at 4 kHz, and 62 dB at 8 kHz (per OSHA, Fed. Reg. March 8, 1983)
Calibration60 dB HL +/- 1 dB at 1 kHz continuous tone with TDH-39, 49, or 50 earphone
AccuracyRepeatable to within 2 dB when using an audiometer with a continuously variable HL control. When using automatic audiometers, the BA-202 will be repeatable within the HL step increments of the audiometer (usually 5 dB)
TransducersTwo electret microphones for checking earphones
Response OutputNormally open and normally closed relay contacts (SPDT 3 wire output)
Hysteresis10 dB +/- 1 dB between ON and OFF indication for the LEFT/RIGHT earphone indicators when used with continuous tone input
Relay Specifications250 mA current, 30 volts AC or DC, 20 million operations
Power9-volt alkaline battery (Optional 120-volt or 220-volt power adapter)
Low battery indicator when used in battery mode
Size6.8” x 6.5” x 4.2” (173 x 165 x 107 mm)
Weight1.63 lbs. (739 g); not including the remote microphone
MarkingsCE