Documentation
Overview
The SEFRAM 9835 is a digital sound level meter that provides 30-130dB capability in three convenient measurement ranges Low, Med, and Hi with an accuracy of ±1.5 dB.
Features of the Sefram 9835
- Low range: 30 to 90dB
- Med range : 50 to 110dB
- Hi range : 70 to 130dB
- Min/Max Function
- Fast/Slow time weighting
- Frequency weighting A/C
- AC/DC signal output
- Backlight LCD
- Standard accessories: batteries, windscreen, carrying case
Data Processing Software Provided Free with your device
- Graphic display
- Simultaneously sound level visualisation and audio listening to identify noise sources
- Graphic or tabular datas saves
- Targeted analysis between cursors
- Leq calculation
This software enable to collect real time data via USB interface, which will preserve the batteries and the storage capacity of your device.
Technical specifications
- Standard applied IEC 61672-1 Class 2 IEC
- Frequency range 20Hz à 8KHz
- Measuring level range 30 à 130dB
- Frequency weighting A / C
- Microphone 1/2 inch electret condenser microphone
- Screen LCD
- Digital display: 4 digits Resolution : 0,1dB, Update Rate : 0.5sec
- Analog display: 30 segment bargraph, Resolution : 2dB, Update Rate : 0.5sec
- Time weighting FAST / SLOW
- Level ranges Lo : 30 – 90 dB, Med : 50 – 110 dB, Hi : 70 – 130 dB
- Accuracy ±1.4dB
- Dynamic range – 60dB
- Alarms “OVER” is when input is more than upper limit of range, “UNDER ” is when input is less than lower limit of range
- AC analogic output 1 Vrms at FS (full scale)
- DC analogic output 10mV / dB
- Power supply One 9V battery, 006P or IEC 6F22 or NEDA 1604 4 AAA
- Power life Approx 60 hours
- 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 285x55x25mm
- Weight 185g (with batteries)
- Warranty 1 year
For further technical details of the Sefram 9835 please refer to the datasheet.
