ACS - Features and Specifications

Features and Specifications

Audiometer Acoustic Tests	Output Level, Distortion, Narrowband Noise, White Noise, Speech Noise, Speech Level
Audiometer Electrical Tests	Frequency, Distortion, Off Level, Rise Time, Fall Time, Overshoot, Crosstalk, Linearity, Warble, Pulse, SISI
Tympanometer Tests	Probe Output Level, Compliance, Probe Pressure, Reflex Output Level, Distortion, Switching (rise/fall/overshoot/off)
Other Tests	Handswitch test, Room Acoustic levels (1/3 Octave)
Transducers Supported	Headphones: TDH-39/39P, TDH-49/49P, TDH-50/50P
	Inserts: EAR-3A, EAR-5A, CIRR-22 Insert Masking Phone, Danavox Single Insert
	High Frequency Phones: Sennheiser HDA-200, HDA-280, Koss HV/1A
	Bone Oscillators: Radio Ear B-71, A20
Free Field Options	Degrees of incidence (0/45/90)
Couplers Supported	Headphones: NBS-9A/IEC-303, IEC-318
	Inserts: IEC-126/HA-2/DB-0138, IEC-711, HA-1
	High Frequency Phones: IEC 60318-2 Type 1 and IEC 60318-2 Type 2
Artificial Mastoids Supported	B&K-4930, Larson Davis AMC493 (AMC493 support includes temperature compensation). Flexible support for custom mastoids

Frequency Accuracy	+/- 0.5 Hz
Amplitude Accuracy	+/- 0.1 dB
Distortion	< 0.20 % @ 125Hz
Linearity Test Limits	+120HL to –10 HL
Test Modes	Manual - user prompted to set frequency, level and channel for each test point. System provides audible feedback and waits for user to manually adjust the audiometer until within user definable threshold before proceeding to the next test point. Designed for minimal user interaction for maximum productivity:
	User Controlled - for audiometers under serial control: System controls and adjusts the audiometer for each test point. User determines which test section to perform.
	Fully Automatic - for audiometers under serial control: System controls and adjusts the audiometer for a full battery of tests. User only prompted to change transducers.
Standards	ANSI S3.6 (1969, 1989, 1996, 2004) IEC-60645, IEC 389