| Standard applied |
IEC 651 Type2, ANSI S1.4 Type2 |
| Frequency range |
31.5Hz ~ 8kHz |
| Measuring level range |
30 ~ 130dB |
| Frequency weighting |
A / C |
| Microphone |
1/2 inch electret condenser microphone |
| Display |
LCD |
| Digital display |
4 digits
Resolution: 0.1dB
Display Update: 0.5 sec. |
| Analog display |
50 segment bargraph
Resolution: 1dB
Display Update: 50 mS |
| Time weighting |
FAST (125mS), SLOW (1 sec.) |
| Level ranges |
Lo: 30 – 80 dB
Med: 50 – 100 dB
Hi: 80 – 130 dB
Auto: 30 – 130 dB |
| Accuracy |
±1.5dB (under reference conditions @ 94dB, 1kHz) |
| Dynamic range |
100 dB (50 dB model 732A) |
| Alarm function |
"OVER" is when input is more than the upper limit
of range.
"UNDER" is when input is less than the lower limit of range. |
| MAX/MIN hold |
Holds readings the Maximum and Minimum Value. |
| AC output |
1 Vrms at FS (full scale)
Output impedance: approx. 100Ω
FS: means the upper limit of each level range. |
| DC output |
10mV / dB, output impedance approx. 1kΩ |
| Power supply |
One 9V battery, 006P or IEC 6F22 or NEDA 1604. |
| Power life |
About 50hrs (alkaline battery) |
| AC adapter |
Voltage 9 VDC, center pin negative, (8–15VDC Max)
Supply current: > 30mADC
Socket: pin → Ground, Casing → Positive, External Diameter →
3.5mm, Internal Diameter → 1.35mm |
| Electromagnetic Compatibility |
RF field = 3V/m
Total accuracy = specified accuracy + 0.5dB |
| Operation temperature |
0 to 40°C (32° to 104°F) |
| Operation humidity |
10 to 90%RH |
| Storage temperature |
-10° to 60°C (14° to 140°F) |
| Storage humidity |
10 to 75%RH |
| Dimensions (L × W × H) |
10.8 × 2.5 × 1.2″ (275 × 64 ×
30mm) |
| Weight |
285g (including battery) |
| Accessories |
9V battery, carrying case, Screwdriver,
Instruction manual.
Windscreen, 3.5φ plug, software & RS-232 cable (optional model
732A). |
