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HTC Instruments
Frequency: 1000-+0.01% Hz allows calibration with A,B,C or D weighting networks or linear
Application: Calibration of 1 inch and 1/2 inch microphones
Type of Product: Calibrator
Standards: GB/T15173, IEC942
Sound Pressure: 94 dB and 114 dB
Accuracy: 0.3 dB
Frequency: 1000-+0.01% Hz allows calibration with A,B,C or D weighting networks or linear
Application: Calibration of 1 inch and 1/2 inch microphones
Temperature Coefficient: 0 to 0.01 dB/oC
Altitude Effects: Approximately 0.1dB decrease for each 2000 feet increase in altitude from sea level to
12,000 feet elevation, or comparable
atmospheric pressure charge (approximately
every 50mm of Hg decrease)
Temperature: -10 to = 50 C (operating)
Range: -40 to = 65 C (storage with batteries removed)
Power Supply: 4x1.5V AAA (UM-4)
Dimension: 137 x 51 x 51mm
Weight: 200g