English:SI:
PERFORMANCENominal Microphone Diameter1/2"1/2"
Frequency Response CharacteristicPressurePressure
Sensitivity50 mV/Pa50 mV/Pa[3] Sensitivity (±1.5 dB)-26 dB re1 V/Pa-26 dB re 1 V/Pa[3] Frequency Range (±2 dB)3.75 to 10000Hz3.75 to 10000 Hz
Frequency Range (±1 dB)7.0 to 7500 Hz7.0 to 7500 Hz
Lower Limiting Frequency (-3 dB)1.0 to 3.0 Hz1.0 to 3.0 Hz
Inherent Noise16 dB(A) re 20 µPa16 dB(A) re 20 µPa[1] DynamicRange (3% Distortion Limit)137 dB re 20 µPa137 dB re 20µPa[1] TEDS CompliantYesYes[2] ENVIRONMENTALTemperatureRange (Operating)-40 to +176 °F-40 to +80 °C
Temperature Coefficient of Sensitivity (+14 to +158°F (-10 to+70°C))0.005 dB/°F0.009 dB/°C[1][3] Static PressureCoefficient-0.01 dB/kPa-0.01 dB/kPa[1][3] Humidity Coefficientof Sensitivity (0 to , non-condensing)±0.001 dB/%RH±0.001dB/%RH[3] Influence of Axial Vibration (0.1g (1 m/s²))63 dB re20 µPa63 dB re 20 µPa[1] ELECTRICALPolarization Voltage0 V0V[4] Excitation Voltage20 to 30 VDC20 to 30 VDC
Constant Current Excitation2 to 20 mA2 to 20 mA
Output Bias Voltage10 to 14 VDC10 to 14 VDC
Maximum Output Voltage±7 Vpk±7 Vpk
Output Impedance<50 Ohm<50 Ohm
PHYSICALHousing MaterialStainless AlloyStainless Alloy
VentingRearRear[5] Electrical ConnectorBNC JackBNC Jack
Mounting Thread (Grid)0.5 - 60 UNS0.5 - 60 UNS
Size - Diameter (with grid).52 in13.2 mm
Size - Diameter (without grid).50 in12.7 mm
Size - Height (with grid)3.62 in91.9 mm
Size - Height (without grid)3.58 in90.9 mm
Weight1.63 oz45.8 gm[1]
Model: EX378B02English:SI:
PERFORMANCENominal Microphone Diameter1/2"1/2"
Frequency Response Characteristic (at 0°incidence)Free-FieldFree-Field
Sensitivity50 mV/Pa50 mV/Pa[2] Sensitivity (±1.5 dB)-26 dB re1 V/Pa-26 dB re 1 V/Pa[2] Frequency Range (±2 dB)3.75 to 20000Hz3.75 to 20000 Hz
Frequency Range (±1 dB)7 to 10000 Hz7 to 10000 Hz
Lower Limiting Frequency (3 dB)1.0 to 3.0 Hz1.0 to 3.0 Hz
Inherent Noise15.5 dB(A) re 20 µPa15.5 dB(A) re 20µPa[1] Dynamic Range (3% Distortion Limit)137 dB re 20 µPa137dB re 20 µPa[1] ENVIRONMENTALTemperature Range (Operating)-40to +176 °F-40 to +80 °C
Temperature Coefficient of Sensitivity (+14 to +158°F (-10 to+70°C))0.005 dB/°F0.009 dB/°C[1][2] Static PressureCoefficient-0.013 dB/kPa-0.013 dB/kPa[1][2] HumidityCoefficient of Sensitivity (0 to , non-condensing)±0.001dB/%RH±0.001 dB/%RH[2] Influence of Axial Vibration (0.1g (1m/s²))63 dB re 20 µPa63 dB re 20 µPa[1] ELECTRICALPolarizationVoltage0 V0 V[3] Excitation Voltage20 to 30 VDC20 to 30VDC
Constant Current Excitation2 to 20 mA2 to 20 mA
Output Bias Voltage10 to 14 VDC10 to 14 VDC
Maximum Output Voltage±7 Vpk±7 Vpk
Output Impedance<50 Ohm<50 Ohm
PHYSICALHousing MaterialStainless AlloyStainless Alloy
VentingRearRear[4] Electrical ConnectorBNC JackBNC Jack
Mounting Thread (Grid)0.5 - 60 UNS0.5 - 60 UNS
Size - Diameter (with grid)0.52 in13.2 mm
Size - Diameter (without grid)0.50 in12.7 mm
Size - Height (with grid)4.02 in102.1 mm
Size - Height (without grid)3.99 in101.2 mm
Weight1.87 oz53 gm
377B02 microphone and HT426E01preamplifier, TEDS programmed
This model includes a 1/2"microphone cartridge, a mated preamplifier with TEDS, and systemcalibration. Click the following for individual componentinformation.
377B02
HT426E01
Nominal Microphone Diameter: 1/2"
Frequency Response Characteristic: Free-Field
Frequency Range: (±2dB) 3.5 to 20000 Hz (3.5 to 20000 Hz)
Dynamic Range: 138.5 dB re 20 µPa
English:SI:
PERFORMANCENominal Microphone Diameter1/2"1/2"
Frequency Response Characteristic (at 0°incidence)Free-FieldFree-Field
Sensitivity50 mV/Pa50 mV/Pa[3] Sensitivity (±1.5 dB)-26 dB re1 V/Pa-26 dB re 1 V/Pa[3] Frequency Range (±2 dB)3.5 to 20000Hz3.5 to 20000 Hz
Frequency Range (±1 dB)6 to 10000 Hz6 to 10000 Hz
Lower Limiting Frequency (3 dB)1.0 to 2.75 Hz1.0 to 2.75 Hz
Inherent Noise16 dB(A) re 20 µPa16 dB(A) re 20 µPa[1] DynamicRange (3% Distortion Limit)138.5 dB re 20 µPa138.5 dB re 20µPa[1] TEDS CompliantYesYes[2] ENVIRONMENTALTemperatureRange (Operating)-40 to +257 °F-40 to +125 °C[4] TemperatureCoefficient of Sensitivity (+14 to +158°F (-10 to +70°C))0.005dB/°F0.009 dB/°C[1][3] Static Pressure Coefficient-0.013dB/kPa-0.013 dB/kPa[1][3] Humidity Coefficient of Sensitivity(0 to , non-condensing)±0.001 dB/%RH±0.001dB/%RH[3] Influence of Axial Vibration (0.1g (1 m/s²))63 dB re20 µPa63 dB re 20 µPa[1] ELECTRICALPolarization Voltage0 V0V[5] Excitation Voltage20 to 32 VDC20 to 32 VDC
Constant Current Excitation2 to 10 mA2 to 10 mA
Output Bias Voltage10 to 14 VDC10 to 14 VDC
Maximum Output Voltage±7 Vpk±7 Vpk
Output Impedance<55 Ohm<55 Ohm
PHYSICALHousing MaterialStainless AlloyStainless Alloy
VentingRearRear[6] Electrical ConnectorBNC JackBNC Jack
Mounting Thread (Grid)0.5 - 60 UNS0.5 - 60 UNS
Size - Diameter (with grid).52 in13.2 mm
Size - Diameter (without grid).50 in12.7 mm
Size - Height (with grid)3.88 in98.6 mm
Size - Height (without grid)3.84 in97.5 mm
Weight1.74 oz49.2 gm