HT instruments HT154 - Manual (Page 11)

HT154
EN - 10
6. TECHNICAL SPECIFICATIONS
6.1. TECHNICAL CHARACTERISTICS
Accuracy is referred to the herewith conditions: 23°C ± 5°C with <80% RH.
• Sound Pressure Level (SPL)
Range Dynamic range Resolution Accuracy Frequency range
Lo 30
÷80dB
50dB 0.1dB
±1.5dB 31.5Hz ÷8kHz
Med 50
÷100dB
Hi 80
÷130dB
• Time weighting
Function Integration time
FAST 125ms
SLOW 1sec
• Analogical Output
Output Voltage output Output impedance
AC Output 1Vrms at Full Scale of the selected range 50
Ω
DC Output 10mV/dB 100
Ω
• Microphone
½ inch Electret condenser microphone
• Safety
Comply with:
IEC 61672 Type 2
For inside use, max height: 2000m; 6561ft
6.2. GENERAL
CHARACTERISTICS
Mechanical characteristics
Size:
280(L) x 80(W) x 32(H)mm; 11.02 x 3.15 x 1.26 in
Weight (including battery): about 300g; 9.65 ounces
Supply
Battery type:
1 battery x 9V NEDA 1604, IEC 6F22, JIS 006P battery.
Low battery indication: Symbol " " is displayed when battery level is too low.
Battery life: About 30 hours.
External adapter: 9VDC output voltage (8
÷13VDC max)
output current :>30mADC
Display
Characteristics:
3 ½ digit
Display Update: 0.5s