1701PM
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Before Using the Device
Thank you for purchasing the DMM-1701PM twin digital to analog trans-modulator. This User Manual
is written for operators/users of the DMM-1701PM to assist in installation and operation. Please read
this user manual carefully before installation and use of the device.
FOR YOUR SAFETY
This equipment is provided with a protective earthing ground incorporated in the power cord. The
main plug shall only be inserted in a socket outlet provided with a protective earth contact. Any
interruption of the protective conductor, inside or outside the device, is likely to make the device
dangerous. Do not remove the covers of this equipment. Hazardous voltages are present within this
equipment and may be exposed if the covers are removed. Only Beijing Jaeger trained and approved
service engineers are permitted to service this equipment.
The supplied AC power cable must be used to power the device. If the power cord becomes
damaged it must be replaced. No operator serviceable parts inside. Refer servicing to Beijing Jaeger
trained and approved service engineers. For the correct and safe use of the device, it is essential
that both operating and servicing personnel follow generally accepted safety procedures in addition
to the safety precautions specified in this manual. Whenever it is likely that safety protection is
impaired, the device must be made in-operative and secured against unintended operation. The
appropriate servicing authority must be informed. For example, safety is likely to be impaired if the
device fails to perform the intended measurements or shows visible damage.
WARNINGS
• The mounting environment should be relatively dust free, free of excessive vibration and the
ambient
temperature between 0C° to 40C°. Relative humidity of 20% to 80% (non-condensed) is
recommended.
• Avoid direct contact with water.
• Never place the equipment in direct sunlight.
• The outside of the equipment may be cleaned using a lightly dampened cloth. Do not use any
cleaning liquids containing alcohol, methylated spirit or ammonia etc.
• For continued protection against fire hazard, replace line fused only with same type.
• Air intake for cooling is achieved via holes at the side of the device and the fans inside. The air
flow should not be obstructed. Therefore, the device has to be placed on a flat surface, leaving
some space at the sides of the device.
• When in operation, the internal temperature should not exceed the limit of 70C°.