Produktbild El. Stethoskop ES-12

Electronic Stethoscope ES-12

 

Electronic Stethoscope ES12 for locating sound sources.

 

Electronic Stethoscope ES-12 - Specification

 

The system contains a directional microphone MI10, a monitor amplifier AV14, dynamic headphones, an accelerometer and a carrying case.

 

Technical DATA MI10

Acoustic mode of operation: Pressure gradient receiver
Directional characteristic: Cardioids
Backward noise elimination: 20 dB
Frequency range: see Diagram
Open circuit sensitivity at 1000Hz und 5V 7,2 mV/PA ±3 dB
Impedance: 1000 Ω ±40 %
Distortion at 28 Pa, (123dB) SPL: < 3 %
Operating supply voltage: 0,8 – 15 V
Current consumption: < 0,2 mA
Storage: min. −25 °C, max. +60 °C
Operation mode: min. −20 °C, max. +55 °C
Humidity range: 20°C / 99%, 60°C / 95%
Swan neck thread: M10x1
Length: 455 mm
Weight: approx. 130 g
Cable: 2 m, Ø 2,7 mm

MI 10 Frequency range



Technical DATA AV14

Piezoelectric accelerometer input: Microdot
Microphone input: LEMO Serie 00
Frequency response hp-amp.: −3 dB between 30 Hz – 20 kHz
Max. Output voltage hp-amp.: 4 Vss*) an 150 Ω
Distortion factor: < 1 % at 1 kHz and 4 Vss
Output socket headphone: 3.5 mm stereo jack
Output socket measuring ampl.: BNC (on rear panel)
Max. output voltage: 5 Vss
Output Impedance: 50 Ω in series with 10 μF
Max. Impedance: > 10 kΩ, < 10 nF
Frequency response: −3 dB between 1 Hz – 30 kHz
Microphone power supply voltage: 5,6 V via 8,2 kΩ
Sensitivity (Piezoelectric accelerometer): 1 mV/pC or 10 mV/pC, ±2 %
LED "Supply Voltage": green
LED "Charging" (rear): red
Supply rechargeable battery: 9 V
Supply extern: 9–15 V DC
Battery Charge: 12–14 V, approx. 14 h
Current Consumption: 5 to 15 mA
Battery operating time: approx. 10–30 h
Operating temperature range: +/- 0°C to +50°C
Cabinet material: Aluminium
Dimensions (W × H × D): 55 × 25 × 100 mm
Weight with batteries: approx. 250 g
Safety standards: IEC61010, EMC EN55103-1, EN55103-2

 

Technical DATA KH10

Transducer type: Dynamic
Operating principle: Closed
Nominal frequency response: 5 - 30.000 Hz
Nominal impedance: 80 Ω per cartridge
Nominal SPL: 105 dB
Nominal T.H.D.: < 0,2%
Power handling capacity: 100 mW
Sound coupling to ear: Circumaural
Ambient noise isolation: ≥ 35 dBA
Nominal headband pressure: approx. 6,5 N
Weight (without cable): 300 g
Length and type of cable: 33 m / straight cable
Connection: Gold plated stereo jack plug (3.5 mm)
and 1/4" adapter (6.35 mm)