Cm-140 instruction manual sound level meter ce gcbc cm140-12000 g a l a x y a u d i o g a l a x y a u d i o.
Title page i. Safety information ………………………….. 1 ii. General description .…………………...…1-2 iii. Specifications ……………..……………… 2-3 iv. Name and functions …………………….. 4-5 v. Calibration procedures ………..………... 6-7 vi. Measurement preparation ……..……….… 7 vii. Operating precautions ………..…………. 7-8 viii. Measur...
I. Safety information read the following safety information carefully before attempting to operate or service the meter. Use the meter only as specified in this manual; otherwise, the protection provided by the meter may be impaired. Ø environment conditions Œ altitude up to 2000 meters relative hum...
Iii. Specifications standard applied: iec651 type2, ansi s1.4 type2. Frequency range: 31.5hz to 8khz measuring level range: 32db to 130db frequency weighting: a / c microphone: 1/2-inch electret condenser microphone display: lcd digital display: 4 digit resolution: 0.1db display update: 0.5 sec. Tim...
Ac output: 1 vrms at fs (full scale). Output impedance: approx. 100 ohms fs: means the upper limit of each level range. Electromagnetic compatibility: rf field = 3v/m total accuracy = specified accuracy + 0.5db power supply: one 9v battery, 006p or iec 6f22 or neda 1604. Power life: approximately 70...
Low battery indication minmum indication maximum indication over range fast response sound level readout range indicate c-weighting a-weighting slow response under range windscreen if you operate at wind speed over 10m/sec, please put protective accessories in front of the microphone. ‚ display iv. ...
ƒ power button the ¡ key turns the sound level meter on or off. „ max / min hold button press button to enter the maximum and minimum recording mode. Select the proper level range before using max/min to ensure that reading value will not exceed the measurement range. Press once to select max value....
Signal ground Š cal potentiometer calibration control, for level calibration adjustment. Battery cover v. Calibration procedures using a standard acoustic calibrator (94db, 1khz sinewave) cm-140 spl meter 6 ‰ ac output terminal 1 vrms corresponding to each range step. Output impedance: 100 ohms outp...
(1) make the following switch settings. Display: dba time weighting: fast measurement mode: max/min mode function disable. Level range: 50 to 100db (2) insert the microphone housing carefully into the insertion hole of the calibrator. (3) turn on the switch of calibrator and adjust the cal potentiom...
(3) do not store or operate the instrument at a high temperature or in a high humidity environment. (4) keep microphone dry and avoid severe vibration. (5) take out the battery and keep the instrument in a low viii. Measurement (1) open battery cover and install a 9v battery in the battery compartme...
Cm-140 spl meter 9.
601 e. Pawnee wichita, ks 67211 316.263.2852 fax 316.263.0642 www.Galaxyaudio.Com g a l a x y a u d i o g a l a x y a u d i o.
