3M DL, SE user manual AC/DC outputs, Characteristic BK4936 QE7052 QE4110 QE4130 QE4150 QE4170

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Appendix A

denser (200 volts must be set to “On”). Use for general, higher-level, free- field measurements.

QE4150 - Free-field, Class/Type 1 (optional) ½-inch diameter (.52"), con- denser (200 volts must be set to “On”). Use for general free-field measure- ments.

QE4170 - Pressure, Class/Type 1 (optional), 1-inch diameter (.938"), con- denser (200 volts must be set to “On”). Use for coupler measurements, audi- ometer calibration, low-frequency measurements, low level measurements (due to low noise floor) or as a laboratory standard.

Characteristic	BK4936	QE7052	QE4110	QE4130	QE4150	QE4170
Accuracy	Class 1	Class 2	Class 1	Class 1	Class 1	Class 1
Polarization	Electret	Electret	200V	200V	200V	200V
Diameter (inches)	½	½	¼	½	½	1
Response	Free- Field	Free- Field	Free- Field	Free- Field	Free- Field	Pressure
characteristic
Frequency response	8 Hz to 20 kHz	20 Hz to 17	20 Hz to	5 Hz to 24.5	5 Hz to 20	3 Hz to 10
(± 2 dB)		kHz	24.5 kHz	kHz	kHz	kHz
Sensitivity (dBV)	-28	-29	-49.1	-36	-26	-26
Sensitivity (mV)	40	35	3.5	15.8	50	50
dB noise (1 kHz third-	0	0	-	10	0	-1
octave band)
dBA noise	22	22	-	32	22	18
dBC noise	31	31	-	41	31	21
dBZ noise	35	35	-	45	35	25
dBF noise	40	40	-	50	40	33
Mic range dBA min.	27	27	60	37	27	23
(recommended)
dB Peak	142	143	167	150	143	140
Nominal capacitance	12	15	6.5	18	18	60
(pF)
Part number	059-523	056-317	059-413	058-659	058-489	058-488

AC/DC outputs

Connector - One 3.5 mm stereo plug connector for both AC and DC outputs. AC output ~ Meter 1 output, and includes the frequency response setting for that meter. The AC output is affected by the instrument’s range setting.

DC output - Meter 1 output, and includes the effects of the time response and frequency weighing for the meter.

Models SE and DL