PRODUCTS
- Microphone
- Measurement condenser microphone
High Temperature Microphone (160 °C)
TYPE 7412A/4012A
- JPY 300,000
※including high temperature type waterproof cap.
【Option】
Microphone Power Supply TYPE 5001：JPY 150,000
1/2 inch high temperature microphone Type 7412A / 4012A has excellent heat resistance and it enables accurate measurement under wide temperature range of -10 °C ~ +160 °C.
Measurements and tests for automobile and aircraft, etc. are performed under various environmental conditions and requires high durability for instruments used for measuring and testing.
Type 7412A / 4012A is effective for measurement of operational sounds in the engine room or transmission under high temperature condition. High temperature type waterproof cap can protect the microphone from water, oil or dust and continuous usage is possible in harsh environmental conditions.
| Type | Free field | |
| Diameter | 1/2 inch | |
| Sound pressure sensitivity | -40 dB re 1 V/Pa (10.0 mV/Pa) |
|
| Polarization voltage | Microphone | DC +200V |
| Preamplifier | DC +28V | |
| Frequency range | 20 Hz ~ 20 kHz | |
| Maximum sound pressure level | 146 dB | |
| Self-noise level | 40dB(A) | |
| Output impedance | 50 Ω | |
| Operating temperature / humidity range | -10 °C ~ +160 °C, 90 % RH max. (without condensation) | |
| Cable | Material | Teflon |
| Length | 3 m | |
| Dimensions / weight | Φ15.3 mm × 122 mm, approx. 46 g | |
| 1/2 inch High Temperature Microphone | TYPE 7412A | 1 ea |
| 1/2 inch Preamplifier (including Teflon cable 3 m) | TYPE 4012A | 1 ea |
| High temperature type waterproof cap | NA-0340 | 1 ea |
