Norsonic nor1256, Instruction Manual

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7 Nor1256
Instruction Manual
Main specification:
Sound calibrator class 1 according to IEC 60942 Ed. 3 (2003) and ANSI/ASA S1.40-2006 (R2011).
In addition, the calibrator displays: Temperature, Air
pressure and Humidity. The temperature and humidity
is measured in the enclosure where the temperature will
be higher and humidity lower after some time of opera-
tion.
Temperature range:
-10ºC to +50ºC; Resolution 0,1ºC; Ac-
curacy ±2ºC,
Atmospheric pressure: 65 kPa to 108 kPa; Resolution 0,1
kPa; Accuracy ±0,4 kPa, (for temperature above 0ºC)
Relative humidity: 0% to 100%; Resolution 1%; Accuracy
±4%, (for temperature above 0ºC and humidity in the range
25% to 85%)
Level and frequencies at reference conditions
(23,0°C/101,325 kPa/50% RH) – levels in decibel relative
to 20µPa:
250 Hz (251,19±0,30)Hz : (114,0±0,2)dB; 94,0±0,2)dB
1 kHz (1000,00±1,00)Hz : (114,0±0,2)dB; (94,0±0,2)dB
Distortion: Max 2,0%
Stabilizing time: 20 seconds.
Sensitivity to environmental conditions: As specified for
IEC 60942 class 1.
Microphone size: 1/1” and below. Adapter for 1/2” micro-
phone Nor4583 (included)
Power supply:
Battery operated:
two LR03 alkaline batteries (AAA-size,
also classified as 24A by ANSI/NEDA).
Voltage for specified operation: 2 V – 3.4 V. Automatic
switch off if the voltage is too low for operation according to
the specifications.
Battery life: > 10 hours
Display: Mono-colour OLED graphical display with resolu-
tion 128 x 64 (W x H) and a dual colour LED.
Principal sound pressure level (IEC 60942 point 6.3):
114,0 dB,
Principal frequency (IEC 60942 point 6.3): 250 Hz.
Environmental range for specified operation:
Temperature: -10 °C to +50 °C (14 °F to 122 °F)
Relative humidity: 25% to 90% .
Air pressure: 65 kPa to 108 kPa.
Reference orientation for testing the effects of exposure
to/radiation of radiofrequency fields:
Display in direction
of antenna.
Weight: 125 g (0,28 lb)
Size: 97x51,5x41 mm (3,8x2,0x1,6”)