Audiometer Bell

diagnostic audiometerscreening audiometerfor adult audiometry

Overview
Bell is a screening and diagnostic audiometer designed for fast air-conduction and bone-conduction threshold testing. Its compact, portable format, simple operation and hybrid control options make it suitable for ENT clinics, private audiology practices and occupational health services.

MODELS

• Basic: air conduction (AC) only
• Plus: air conduction (AC) and bone conduction (BC)

HYBRID TECHNOLOGY
Bell features Inventis Hy‑Tech: operate as a stand‑alone device or control via PC. USB connection is driverless for quick setup.

NOAH & MAESTRO INTEGRATION
Connect Bell to a computer USB port to transfer exam results to Maestro or Noah databases. The live‑view function displays the ongoing test on the computer screen for review and documentation.

FEATURES

• Table‑top format: Full screening audiometer with color graphical display.
• Hybrid operation: Stand‑alone or PC‑controlled use.
• Live view: Real‑time audiogram display on connected PC.

TECHNICAL DATA
Available signals: stimulus: pure tone, warble tone; masking: NBN, WN.
Signal specs: attenuator step 5 dB; presentation: continuous, pulsed (0.5, 1, 2 Hz); warble: 5 Hz sinusoidal modulation.
Outputs & transducers: AC: TDH‑39 / DD45 headphones, ER‑3 / IP30 insert earphones; BC: B‑71 bone vibrator (Plus only); insert masking: IME‑100 (Plus only).
Available tests: pure tone audiometry; auto threshold (modified Hughson‑Westlake).
Patient/operator: talk‑over via built‑in or external microphone; patient response via trigger.
Internal database: up to 100 patients (AC and BC thresholds).
Calibration: valid 12 months; parameters set through device software.
Computer interface: USB (driverless); compatible with Inventis Maestro.
Display: graphical color TFT LCD, diagonal 4.3" (95 x 54 mm), resolution 480 x 272; shows complete audiogram during test.
Power: max consumption 8 W; supply 6V 2A continuous via external medical grade 100‑240 Vac 50/60 Hz adapter.
Mechanics: size (WxDxH) 32 x 32 x 9 cm; weight 1.8 kg. Freight packing: 47 x 40 x 35 cm; gross weight 4.2 kg.

Technical specifications

• Signals: pure tone, warble; masking: NBN, WN
• Attenuator step: 5 dB
• Presentation: continuous or pulsed (0.5 / 1 / 2 Hz)
• Warble modulation: 5 Hz
• AC transducers: TDH‑39 / DD45 headphones; ER‑3 / IP30 inserts
• BC transducer: B‑71 bone vibrator (Plus)
• Insert masking: IME‑100 (Plus)
• Tests: pure tone audiometry; auto threshold (modified Hughson‑Westlake)
• Patient communication: talk‑over via internal/external mic; patient trigger
• Internal DB: up to 100 patients (AC & BC)
• Calibration validity: 12 months
• PC interface: USB driverless; compatible with Maestro / Noah
• Hybrid: stand‑alone or PC control (requires Maestro for full features)
• Display: 4.3" TFT color (480 x 272), shows audiogram
• Power: max 8 W; 6V 2A external medical adapter
• Dimensions: 32 x 32 x 9 cm; Weight: 1.8 kg
• Packing: 47 x 40 x 35 cm; Gross weight: 4.2 kg