High-temperature CCLD microphone preamplifier designed for acoustical measurements up to 125°C with constant-current line drive, connecting directly to ½" prepolarized microphones via a BNC connector. It operates with a 2 to 20 mA supply (nominal 4 mA), produces a 12 V ±2.0 V DC output, and supports IEEE 1451.4 TEDS. The unit has a frequency response of 20 Hz to 50 kHz (±0.2 dB) and a noise floor of less than 3.5 μV A-weighted at 23°C, rising to less than 9 μV A-weighted at 125°C. Dimensions are ∅12.7 mm × 85 mm including connector, with a 11.7 mm - 60UNS mounting thread. It meets EMC and Low Voltage Directives of the EU and compliance with Australia and New Zealand EMC requirements.
Microphone preamplifier designed to make acoustical measurements at high temperature - up to 125°C (257°F) - with a constant-current line drive (CCLD) input module.
| Hottinger Brüel & Kjær A/S | |
|---|---|
| Product Category | Measurement Microphones |
| Product Number | -1706--- |
| Product Name | 1/2"CCLD MicPreamp, HT, for 0V Mic |
| Frequency Response | 10 to 100000 Hz |
