3M SE-400 Measurements, Mechanical Characteristics, Environmental Characteristics, Calibration

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Appendix A

Measurements

Parameters	LAS, LMAX, LMIN, LPK, LEQ/LAVG, LE, Elapsed Time
Frequency Weighting	A, C, Z
Peak Frequency Weighting	A, C, Z
Response Time	Fast and Slow
Range	110 dB total dynamic measurement range
	Overall measurement range 30 to 140 dBA (single range)
Max Peak Level	143 dB (sampled peak)
Exchange Rates	3, 4, 5 dB
Status Indicators	Run, stop, battery status, OL (overload), UR (under-range),
	Run-Time, locked status

Calibration

Calibration method Manual user adjustment with external calibrator. Calibration history will display date/time of calibration.

Mechanical Characteristics

Physical Characteristics

Size	11.2” (L) X 2.8” (W) X 1.3” (H) (with preamp & microphone);
	28.4. cm (L) X 7.1 cm (W) X 3.3 cm (H)
Weight	410 g/14.5oz (SE-401 IS model including preamp and microphone)
	410 g/14.5oz (SE-402 IS model including preamp and microphone)
	367.5g/12.96oz (SE-401 model including preamp and microphone)
	380.5g/13.42oz (SE-402 model including pre-amp and microphone)
Housing	Stainless fiber filled ABS Polycarbonate with light grey front and dark
	grey backing.
Tripod Mount	Standard photographic mount on backside accepts ¼” – 20 screw
	threads
Ingress Protection	IP65
Drop Protection	Minimum 2 meter onto concrete, 2 times on each face. Microphone
	damage acceptable, no other loss of function, data or power.

Environmental Characteristics

Operating Temperature	-10° C to 50° C (14° F to 122° F)
(per IEC61672)
Humidity	0 to 90% RH, non-condensing
Storage Temperature	-20° C to 60° C (-4° F to 140° F)
Battery Charge Temperature	0°C to 40°C (32°F to 104°F)
Atmospheric Pressure	Operating: 80 to 110 kPa; Storage: 50 to 150 kPa

Sound Examiner SE-400 Series