User's Manual

ALPHA meter

IL42-4001S

Socket-connected installation

Before you install the meter, check the following:

• Are the socket and meter current class ratings compatible with the meter?

• Is the wiring to the meter socket correct? See the wiring diagrams on the following pages.

• Is a lightning arrestor present? If so, remove the paint from the socket rim where it contacts the

arrestor's ground strap. This will ensure proper grounding.

• Is the TEST button in the unlocked position? If the TEST button is in the locked position, the meter will

enter TEST mode when you install it. For more information, see the technical manual for your meter.

After you install the meter, check the following:

• If load is applied, check that the pulse arrows on the LCD are blinking.

The LCD has 2 sets of pulse arrows, one located above the other. The upper set of arrows indicates

watthours, and the lower set indicates alternate energy (kVARh or kVAh, if available). The arrows

pointing to the left indicate energy received; arrows pointing to the right indicate energy delivered.

For more information, see the technical manual for your meter.

Bottom-connected installation

Before you install a bottom-connected meter, check the following:

• Determine where the meter is to be installed. It should be on a flat wall at the point of electrical

service entrance cables.

• Are the meter class and service connections compatible with the meter?

To install a bottom-connected meter, perform these steps:

1 Mount the bottom-connected meter or the bottom-connected S-to-A adapter.

Use authorized utility procedures to install ground connection before wiring. Dangerous voltages are

present. Equipment damage, personal injury, or death can result from wiring an ungrounded meter.

2 Wire the meter. See the wiring diagrams beginning on page 3. If the wire diagram is larger than the

wire, use only approved adapters. External meter wiring should be consistent with the meter class

rating.

- For 100 amp meters, use #2 wiring (or in accordance with standard utility operating practices)

- For 150 amp meters, use #1 AWG or 50 mm2 wiring (or in accordance with standard utility

operating practices)

- For transformer rated meters, use #9 wiring (or in accordance with standard utility operating

practices)

Not supplied by Elster Solutions.