35
D-0116493-B (OM015)
– PC850 Operating Manual
9.
TECHNICAL SPECIFICATIONS
9.1.
STANDARDS AND REGULATORY
Type of protection against electric shock: Powered via SELV ClassII mains adapter
Degree of protection against electric shock: Type B applied part
Degree of protection against ingress of water: Not protected
Mode of operation: Continuous operation
Equipment mobility: Portable
The Model PC850 Audiometer is classified as a Class IIa device under Annex IX of the EU Medical Devices
Directive. It is intended for use as a screening audiometer instrument.
Audiometer type: Type 4 (IEC 60645-1:2001)
Type 4 (ANSI S3.6:2004)
Types and reference levels: DD45: ISO 389-1, Table 2
Static headband force: Headphones: 4.5N
Sound attenuation characteristics: ISO8253-1, Table 3
9.2.
INPUT/OUTPUT DATA
Outputs:
Left & Right earphone
Frequency range:
250Hz-8kHz
Frequency accuracy:
<1%
Distortion:
<2%
Output level range:
-10dBHL min; 100dBHL max (all frequencies)
Output level accuracy:
Within 3dB
Output level step size: 5dB
Output transducer (AC): DD45 earphones (supplied)
Tone present:
Single tone
Communication:
Integral talk over facility
USB interface:
Interface to PC (PC850 & Audibase software)
Power input:
2.5mm barrel-type socket.
Patient response input: 6.3mm Jack socket
Left & Right outputs:
6.3mm Jack socket
USB:
Type B socket
Maximum voltage at any output: 12V peak
9.3.
PHYSICAL DATA
Display:
2 lines of 24 characters
Mains power:
100-240Vac; 50-60Hz; 0.5A
Input Rating:
5Vdc; 1.2A
Dimensions:
270mm (W) x 175mm (D) x 68mm (H)
Weight:
0.7kg (approx)
Safety:
IEC 60601-1 (plus UL, CSA & EN deviations)
EMC:
IEC 60601-1-2
CE mark:
To the EU Medical Device Directive
