Perel Tools EVM2050 Manual Del Usuario página 3

EVM2050 – ANALOGUE SOUND LEVEL METER
1. Introduction and Characteristics
To all residents of the European Union
Important environmental information about this product
This symbol on the device or the package indicates that disposal of the device after its lifecycle could harm
the environment. Do not dispose of the unit (or batteries) as unsorted municipal waste; it should be taken to
a specialized company for recycling. This device should be returned to your distributor or to a local recycling
service. Respect the local environmental rules.
If in doubt, contact your local waste disposal authorities.
Thank you for buying the EVM2050! Please read the manual thoroughly before bringing this device into service.
If the device was damaged in transit, don't install or use it and contact your dealer.
The EVM2050 allows you to measure the sound level in virtually every acoustic environment (high or low frequency,
high or low sound levels, broadband, interrupted or continuous). It can be used to measure the noise level in
factories, schools, offices and airports, or to test the acoustics of studios, theatres and hi-fi installations. The
EVM2050 has an easily readable result readout, which allows swift measurements in any location.
• Battery level readout (see §3)
• 7 selectable ranges: for 50 to 126dB measurements (see §4)
• RCA output: to connect the device to a hi-fi installation or test equipment (see §5)
• Measuring frequency: fast / slow response: to measure sound peaks or average sound levels (see §6)
• A & C weighting: for acoustic analyses and measurements (see §7)
2. Specifications
Selector position
Measuring range 50-66dB
Load impedance
Distortion
Microphone
Power
Accuracy
Standard
Weighing
Response
Output signal deviation
Battery test
Battery life
Dimensions (H x W x D)
Weight
3. Battery
The EVM2050 requires one 9V battery. Alkaline batteries usually give better results and last longer. Open the battery
compartment and remove the old battery. Insert the new one. Mind the polarity.
To test the battery, put the RANGE selector to BATT: if the meter moves to the BATT TEST area, the battery is OK.
REMARKS:
• Set the RANGE selector to OFF when you are not using the EVM2050. That way the battery will last longer.
• Remove the battery when you will not be using the EVM2050 for a while.
60dB 70dB
60-76dB
min. 1KΩ
< 2% @ 1kHz, 0.5V
electret condenser microphone, omnidirectional,
more directional at higher frequencies
1 x 9V battery
± 2dB @ 144dB
0.2dB
A or C
fast or slow
max. 1V @ 1kHz
"OK" between 7 & 10.5V
110 hours (alkaline battery)
160 x 62 x 44mm
± 185g
80dB 90dB
70-86dB 80-96dB
3
100dB 110dB
90-106dB 100-116dB
120dB
110-126dB