Cleaning And Maintenance; Technical Specifications - Velleman MICW81 Manual Del Usuario

6.2 Microphone
When the low-battery indicator lights, the battery is low. Replace the batteries with new ones.
1. Make sure the microphone is switched off.
2. Open the battery compartment by lifting the plastic cover.
3. Insert two new 1.5 V AA batteries in accordance with the polarity markings inside the battery
compartment. Do not use rechargeable batteries as these might influence the performance.
4. Close the battery compartment and switch on the microphone.
WARNING:
Malfunction may occur if the power is on when the battery is replaced. Dispose of
batteries in accordance with local regulations.
Keep batteries away from children.
7. Operation
1. Pull out both antennas and place them perpendicular to the receiver.
2. Connect the receiver to the sound system:
OUT MIX: Use an appropriate audio cable to connect to the amplifier or mixing table.
o
BALANCE OUT: Use an appropriate audio cable to connect to the amplifier or mixing table.
o
3. Make sure the volume level is at its minimum and switch on the receiver.
4. Switch on the microphone.
5. Adjust the volume to a moderate level.
6. Turn the volume level to its minimum prior to switch off the receiver.
8.

Cleaning and Maintenance

•
All screws should be tightened and free of corrosion.
•
The housing, visible parts, mounting supports and the installation location (e.g. ceiling, suspension,
trussing) should not be deformed, modified or tampered with; e.g. do not drill extra holes in
mounting supports, do not change the location of the connections...
•
The electric power supply cables must not show any damage. Have a qualified technician maintain
the device.
•
Disconnect the device from the mains prior to maintenance activities.
•
Wipe the device regularly with a moist, lint-free cloth. Do not use alcohol or solvents.
•
Do not open the receiver. There are no user-serviceable parts.
•
Contact your dealer for spare parts if necessary.
•
Remove power and batteries when the device is not used for a long time.
9.

Technical Specifications

System
frequency range .......................................................................... UHF 863.500 - 865.000 MHz
modulation mode ..................................................................................................... FM (PLL)
nominal/peak deviation ........................................................................................... ± 20 kHz
frequency stability ................................................................................. automatic calibration
frequency response ................................................................................ 40 Hz-15 kHz ± 3 dB
S/N ratio at 1 mV RF and peak deviation ................................................................ max. 95 dB
THD at nominal deviation and 1 kHz........................................................................... < 0.5 %
temperature range ...................................................................................... -10 °C to + 55 °C
Receiver
RF power .................................................................................................................... 1 mW
sensitivity (peak deviation) ......................................................................................... 7 dBuV
AF output voltage at peak deviation and 1 kHz AF out
balanced ................................................................................................ +10 dB (XLR)
unbalanced ........................................................................................ +4 dB (1/4" jack)
F/N ratio ............................................................................................................. max. 80 dB
P/N ratio ............................................................................................................. max. 80 dB
V. 02 – 15/07/2020
MICW81
6 ©Velleman nv