INTRODUCTION
Congratulations on your purchase of this product.
This User Guide suits LIU90HM product. We adopt the
latest CMOS technical of sensor and driver. The most at-
tractive characteristics are small and easy hidden, suits
the elevator and corridor. In addition, it owns the charac-
ters of high definition and stability, strong anti-jamming,
rich and real color. Fixing and using this model are con-
venient too. It is very good for you to apply to your CCTV
system.
Please read this instruction manual carefully to en-
sure proper use of the product.
CONNECTING
BRIEF OF PRODUCT
* Sensor
Adopt CMOS 1/3"Sensor.
* Auto Gain Control (AGC)
Built-in auto gain control (AGC) circuit. The color camera
can get high definition picture in low Lux condition.
* Auto Electronic Shutter (AES)
Built-in auto electronic shutter function. The color
camera’s AES speed can reach 1/100,000s.
* Gama Characteristic
Camera Gama characteristic is 0.45.
* Scanning Mode
NTSC or PAL mode.
* Water Resistance
IP66
DC12V Power Supply
Monitor
LIU90HM
TROUBLE AND SOLUTION
Link wire rule：
Power
Video
Note:
● Please note the camera’s operating temperature and its using
environment requirement. Avoid using the camera at too high
or too low temperatures. The operating temperature is -
30~+60℃. (Recommendatory operating temperature is -
10~+50℃.)
● Never make the camera face the sun or bright object. Other-
wise, it will damage the CMOS.
● Do not mount the camera near by the radiator or heater.
1. No Picture after providing power
. May be the power supply voltage abnormity, please check the power
supply voltage and pole whether exactitude.
. Please check all the connecting cable and monitors whether be connected
correctly or not.
2. The picture level direction have flowing interference ripples
. May be caused by the power supply AC ripples, it need filter the wave of the
power supply.
. Check the monitor and peripheral equipments used.
3. The picture background color changes continuously
. The fluorescent lamp’s electromagnetic field cause color roll. This is proper
phenomenon of the cameras.
. Reduce the fluorescent lamp numbers or increase the distance between the
camera and the fluorescent lamps can improve it.
. Use power supply external sync. camera can solve it.
4. The picture smear too mass
. The power supply’s voltage unstable.
. Connecting cables not connect correctly or have high impedance.
The symbol is intended to alert the user to the presence of
The symbol is intended to alert the user to the presence of
important operating and maintenance (servicing)
Instructions in the literature accompanying the appliance.
uninsulated ‘dangerous voltage’ within the product’s
enclosure that may be of sufficient Magnitude to consti-
a risk of electric shock to persons.
Notes：
●The power supply must through safe attestation. Its output voltage,
current, voltage polarity and operating temperature must match the
camera’s requirement.
●When using the camera in the thunderbolt condition,please note to
mount Anti-thunder device or put off the power supply plug and cable.
●In order to capture high quality pictures, the power supply’s cable and
video output cable should not be too long.
Video
DC12V
CAUTION:
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK
DO NOT REMOVE COVER OR BACK NO USER
SERVICEABLE PARTS INSIDE. REFER SERVICING
RISK OF ELECTRIC. DO NOT OPEN
CAUTION: TO PREVENT ELECTRIC SHOCKS AND RISK OF
FIRE HAZARDS, DO NOT USE OTHER THAN
SPECIFIED POWER SOURCE.
