---

Norsonic 1201 Specifications

Nor 1201   Norsonic Microphone Preamplifier

£ 3 a day *

Input :	ISO specification for 1/2" measurement microphones
Connector	Integral Lemo 1B type
Frequency range	1 Hz to 1 MHz ± 0.5 dB
Input impedance	20 GΩ, 0.2 pF
Output impedance	55 Ω @ 1 kHz, Cs : 20 pF
Noise, A-weighted	Cs : 20 pF : < 3 µV
Noise, Linear	Cs : 20 pF : < 6 µV
Gain, typical	- 0.15 dB
Temperature, operating	- 40 to + 60 °C
Humidity, operating	0 to 95 %RH
Current consumption	120 V or ± 60 V : 2.5 mA
Current consumption	28 V or ± 15 V : 0.7 mA
Weight	33 grams
Dimensions	12.7 mm (Ø), 77.5 mm long

Upper Frequency vs. Cable Length : THD < 1% : supply voltage 120 V and assuming 50 mV/Pa sensitivity

SPL	10 m	20 m	50 m	100 m
150 dB	8 kHz	5 kHz	2 kHz	1 kHz
140 dB	35 kHz	20 kHz	12 kHz	5 kHz
130 dB	> 100 kHz	70 kHz	40 kHz	15 kHz
120 dB	> 100 kHz	> 100 kHz	> 100 kHz	60 kHz
110 dB	> 100 kHz	> 100 kHz	> 100 kHz	> 100 kHz

E&OE - specifications subject to change without notice.

---

Gracey & Associates   01933 624212   hire@gracey.com
British Standards accreditation for noise and vibration instrument hire and calibration
Home l Manufacturers l Applications l Hire Notes + FAQ l Site Search l Standards l Glossary