Delta DPM-MA1121, User Manual

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D e lt a M u lt i- C ir c u i t P o w e r M e t e r D P M - M A11 2 1 U s e r M a n u a l
3 - 2
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3.1 Installation Method
3.1.1 Environment
This product must be placed in the box when it is not in use. If it is not used for the time being, in order to make
the product conform to the warranty scope and future maintenance of the company, please pay attention to the
following matters during storage.
：

Must be placed in a dust-free, dry place.

The ambient temperature in the storage location must be in the range of -20°C to +70°C (-4°F to 158°F).

The relative humidity in the storage location must be in the range of 0% to 80% without condensation.

Avoid storage in environments containing corrosive gas and liquids.

It is best to properly store in a rack or countertop.

Suitable installation environments for this product include: places where there is no high heat device;
locations where there is no water droplets, vapors, dust, and oily dust; places where there is no corrosion,
flammable gas, liquids; and where there is no floating dust and metal particles Places; Strong,
vibration-free, electromagnetic noise-free places.
3.1.2 Remind

Installation method must be in accordance with the regulations, or it will malfunction.

In order for the cooling loop to work well, when installing the electric meter, it is necessary to keep sufficient
space between the upper and lower side of the meter and the adjacent items and baffles (wall) or it will
cause poor heat dissipation.
3.2 Basic Test
Test item Description
General testing

Heat sink holes should be avoided by foreign substances such as oil, water or metal
powder and should be prevented from falling into the electric meter.

If the electric meter is set up in a place where harmful gases or dust are present, it
shall prevent the intrusion of harmful gases and dust.
Pre-operation
（
No control power
supply
）

Please insulate the connection part of the wiring terminal.

The communication wiring should be correct, otherwise abnormal actions may occur.

Check for conductive or flammable objects such as screws or metal plates inside the
meter.

When the electronic instrument used near the meter is subjected to electromagnetic
interference, adjust the instrument to reduce electromagnetic interference.

Please make sure the meter's supply voltage level is correct.
Pre-operation
（
Control power
supplied
）

Whether the communication with each device is normal.

If the meter is abnormal, please contact your dealer or our customer service center.