Casella CEL CEL-63X - Manual (Page 63)

CEL-63x Environmental & Occupational Noise Meter
63 Casella CEL
6.23 Electromagnetic compatibility
The instrument is designed and tested to comply with the following EMC and
ESD standards:
IEC 61000-4-2 Testing and Measuring Techniques – Electrostatic
discharge immunity tests.
IEC 61000-6-2 Generic standards – Immunity for industrial
environments.
6.24 Effects of AC power frequency fields
Less than ±0.5 dB change from 74 dBA 925 Hz reference level when subjected
to 160 A/m AC magnetic field at 50 Hz and 60 Hz.
6.25 Tripod mounting
Socket to mount on standard ¼-inch (Whitworth) camera tripod thread.
6.26 Display
320 × 240 pixels transmissive colour TFT, update period 0.5 seconds.
6.27 Memory
Micro SD 2 GB non-volatile internal memory.
Maximum capacity: Limited to either:
1. 999 individual runs, or
2. 400 separate runs of 24 hours duration with
1 minute periods and 1 second profiles. (Excluding
event and audio data)
3. 999 events per run
4. 999 audio files per day
5. 20 hours of audio recording in high quality mode,
60 hours in low quality mode.
6.28 Connectivity
Refer to Figure 13.
USB Mini B (-CMC51) to download to Casella insight data
management software.
AC output 2.5 mm stereo jack (barrel ground, tip AC output) provided
for remote monitoring or recording, PC WAV file recording or
headphone applications.
Approximately 0.4 Vrms full-scale output corresponding to
96 dB. Output impedance is approximately 2.2 kΩ. Load