G.R.A.S. 46DP 1/8" LEMO Pressure Standard Microphone Set

Freq range: 6.5 Hz to 140 kHz
Dyn range: 46 dB(A) to 191 dB
Sensitivity: 0.7 mV/Pa
TYPE (Microphone features) P
Frequency range (±1 dB) Hz 10 to 25 k
Frequency range (±2 dB) Hz 6.5 to 140 k
Dynamic range lower limit with G.R.A.S. preamplifier dB(A) 46
Dynamic range upper limit with G.R.A.S. preamplifier @ +28 V / ±14 V power supply dB 179
Dynamic range upper limit with G.R.A.S. preamplifier @ +120 V / ±60 V power supply dB 191
Set sensitivity @ 250 Hz (±4 dB) mV/Pa 0.7
Set sensitivity @ 250 Hz (±4 dB) dB re 1V/Pa -63
Output impedance Ω 75
Power supply min. to max. (single/balanced) V 28 to 120 / ± 14 to ± 60
DC-offset, min., single suppy V 0.5 x Vs - 1
DC-offset, max., single suppy V 0.5 x Vs + 4
DC-offset, balanced supply V -1 to 4
Microphone venting Rear
Temperature range, operation °C / °F -30 to 70 / -22 to 158
Temperature range, storage °C / °F -40 to 85 / -40 to 185
Temperature coefficient @250 Hz dB/°C / dB/°F -0.01 / -0.006
Static pressure coefficient @250 Hz dB/kPa -0.008
Humidity range non condensing % RH 0 to 100
Humidity coefficient @250 Hz dB/% RH -0.0013
Influence of axial vibration @1 m/s² dB re 20 µPa 55
TEDS UTID (IEEE 1451.4) 27 v. 1.0
Connector type 3 m 7-pin LEMO
CE/RoHS compliant/WEEE registered Yes / Yes/Yes
Weight g / oz 7 / 0.247

Typical frequency response (without protection grid).

Optional items

G.R.A.S. 42AA

Pistonphone, Class 1

G.R.A.S. 42AP

Intelligent Pistonphone, Class 0

G.R.A.S. 12AA

2-Channel LEMO Power Module with gain, filters and Syscheck generator

G.R.A.S. 12AK

1-Channel Power Module with gain, filters and SysCheck generator

G.R.A.S. 12AQ

2-Channel Universal Power Module with signal conditioning and PC interface