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Products Infomation
The UN-14 is a single-channel sound level meter unit designed for connection of a measurement microphone and preamplifier. The chassis of up to 16 units can be linked to create a multi-channel configuration.
Two types of input connectors are provided (7-pin and BNC), providing support for the following types of microphones and preamplifiers.
Sound Level Meter Unit
Model:
UN-14
Maker:
RION CO.,LTD.
Inputs | Number of measurement channels | 1 | ||||
Connectors | 7-pin input connector | For measurement microphone or preamplifier (max. input voltage ±10 V) (excl. UC-34P connection) Microphone bias voltage +30 V, +60 V, +200 V |
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BNC connector | For CCLD compliant microphone or preamplifier (24 V 4 mA) For TEDS compliant microphone (24 V 4 mA) |
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Frequency weighting characteristics | A, C, Z (JIS C 1509-1 Class 1 electrical characteristics) | |||||
Measurement level range | A 30 to 128 dB (using UC-59, NH-17) C 36 to 128 dB (using UC-59, NH-17) Z 41 to 128 dB (using UC-59, NH-17) (HPF 20 Hz, LPF 20 kHz) |
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Frequency range | 1 Hz to 80 kHz (20 Hz to 40 kHz ±0.5 dB) (1 Hz to 80 kHz ±3 dB) | |||||
Sensitivity setting | Setting range | -10.0 to 59.9 dB/Pa in 0.1 dB/Pa steps | ||||
Level range settings | 6 settings (level range changes with sensitivity setting) | |||||
Sensitivity | Level range | |||||
-10.0 to -19.9 | 70 dB to 120 dB in 10-dB steps | |||||
-20.0 to -29.9 | 80 dB to 130 dB in 10-dB steps | |||||
-30.0 to -39.9 | 90 dB to 140 dB in 10-dB steps | |||||
-40.0 to -49.9 | 100 dB to 150 dB in 10-dB steps | |||||
-50.0 to -59.9 | 100 dB to 150 dB in 10-dB steps | |||||
Time weighting characteristics | F, S, 10 ms (JIS C 1509-1 Class 1 electrical characteristics) | |||||
Display | Segment-type LCD with backlight (constantly on) | |||||
Display contents | Unit settings, instantaneous value (1-s cycle), bar graph (100-ms cycle) | |||||
Warning indications | LED x 2 | |||||
Right-side LED | Normally out. Lights up in red to indicate overload. | |||||
Left-side LED | Master/Slave indication (when linked to UV-22). Normally out. Lights up to indicate Master operation | |||||
Filters | HPF (attenuation -18 dB/oct, -3 dB drop) | 20 Hz, OFF (user filter supported with UV-22) |
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LPF (attenuation -18 dB/oct, -3 dB drop) | 20 kHz、OFF (user filter supported with UV-22) |
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Calibration signal output (for calibration of subsequent unit) |
AC output | Sine wave 1 kHz ±2 %, output signal 0.5 V (RMS) ±2 % | ||||
DC output | +3.2 V ±1% | |||||
Output | BNC connector | |||||
AC output | Output impedance 600 Ω | |||||
Output voltage | 1 V (RMS) ±2 % at range full-scale point | |||||
Max. output voltage | ±5 V (peak) (no overload) | |||||
Dynamic range | 80 dB or more (1 Hz to 80 kHz), 85 dB or more (20 Hz to 20 kHz) | |||||
Load impedance | 10 kΩ or more | |||||
DC output | Output impedance 50 Ω | |||||
Output voltage | +3.5 V±1 % at range full-scale point (0.5 V/10 dB) | |||||
Max. output voltage | +5 V | |||||
Dynamic range | 40 dB or more (1 Hz to 80 kHz), 60 dB or more (20 Hz to 20 kHz) | |||||
Output impedance | 10 kΩ or more | |||||
Residual noise | Input converted residual noise 4 μV(RMS) or less (Z, 1 Hz to 80 kHz), 2 μV(RMS) or less (Z, 20 Hz to 20 kHz), 1.5 μV(RMS) or less (A, C) |
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Power supply | 9 V to 15 V DC Suitable AC adapter: NC-99A, Battery Pack Unit BP-17, Automotive 12 V battery can also be used |
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Temperature/humidity range for operation | -10 ℃ to +50 ℃, max. 90 % RH (no condensation) | |||||
Dimensions and weight | 150 (H) × 36 (W) × 179 (D) mm (without protruding parts), approx. 500 g | |||||
Accessories | Link plate x 1 |