Casella 620 Series - Technical Specifications

620 Series
27
Technical specifications
Technical area
Specification
Applicable Standards
IEC 61672-1:2013
CEL-620B model only, IEC 61260 Class 1 Octave filters
ANSI S1.4 - 1983 (R2006), ANSI S1.43 - 1997 (R2007)
CEL-620B model only, ANSI S1.11-2004 (R2009)
Total measurement range
20 to 140dB RMS (single range), 143.0 dB Peak
Frequency weightings
RMS & Peak: Simultaneous A, C & Linear (Z)
Time weightings
Simultaneous Slow, Fast & Impulse
Amplitude weightings
Q3, Q4 and Q5 (Q4 & Q5 applicable to Lavg only)
Thresholds
70 to 90 (dB) in 1 dB steps (applicable to Lavg only)
Noise floor
<33dB(A) Class 2, <25dB(A) Class 1
Runs stored
999, up to 24 hour length per run. 33 hours of audio notes. Up
to 1 years storage with 1s time history selected.
Measured Parameters
CEL-620A: LXY, LXYmax, LXYmin, LXeq, LXpeak, Lavg, LC-LA,
LXIeq, LTM3, LTM5, LAE
CEL-620B: LXY, LXYmax, LXYmin, LXeq, LXpeak, Lavg, LC-LA,
LXIeq, LTM3, LTM5, LAE, Octaves: LXY, LXeq, LXYmax
Where X is the frequency weighting A, C or Z and Y
represents time weighting Fast (F), Slow (S) or Impulse (I).
All weightings simultaneously measured where appropriate
Frequency bands
11 octave bands 16Hz to 16kHz (CEL-620B model only)
Calibration information
Stores pre and post run calibration date, time and level
Display
320x240 pixel transmissive colour TFT
Output (P.C.)
USB 2.0 ‘A’ to ‘Mini B’
Batteries
3 x AA Alkaline (supplied) or rechargeable
Battery life
11 hours with backlight on, 20 hours backlight off
External power
9-14V DC at 250mA via 2.1mm connector
Tripod mount
1/4” Whitworth socket
Size mm (in)
72 x 229 x 31mm (2.8 x 9.0 x 1.2”)
Weight gm (oz)
295g (10.4oz)
Environmental
Temp 0 -40°C (Class 2), -10 to 50°C (Class 1) (storage -20 to
60°C) RH 5% to 90% (non-condensing), Pressure 65-108kPa