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Preparation

Before you get started make sure you have the following:

• Project’s Wiring diagram - Provided by Galooli Support.

• CE Transducer CE42 Meter

• The power source of +12V DC to power the Galooli RTU (Elara)

• The power source of 220VAC to power the AC CE42 meter

• Electrical wires

• Electronic tools – screwdriver, Multimeter, & f-crimp tool

 Additional information:

• The device is designed to be installed on a din rail

• Make sure that you have sufficient space for its mounting

• We recommend mounting the AC meter next to phase breakers - this act can simplify the process of disconnecting the cables from the breakers, passing the load cables through the meter, and then connecting them back to the breakers.

Power connecting the AC meter 

Before defining the ID of the sensor, we need to make the necessary wiring connections between the AC meter and the computer.

- לשאול את צפריר

1. Connect the device to a +12V DC power source.

2. Verify that the red LED starts blinking – indicating a successful power connection.

Connecting the AC

meter

to the Elara

1. Disconnect Connect the RS-485 cables from the USB AC meter to the RS-485 converter.Connect the RS-485 cables to the Terminal Blocks of the Elara tray.

 The terminal number on the AC

Terminal number on the AC	Description	Functionality
7	DC +12V power input	Powering Meter
8	DC GND	Powering Meter
15	Elara’s terminal block Orange A data port	Serial RX data
16	Elara’s terminal blocks Blue B data port	Serial TX data

Install the Phase Lines through the AC Meter

Safety: 

• Before installing the load cables and connecting the voltage lines, it is necessary to cut off the AC power. Once the wiring procedure is completed, you may turn the AC power back on. 

• Any electrical installment should be carried out only by a certified high voltage electrician.

After setting up all the SW configurations, we can start with the actual phase line installment.

• The AC power meter is designed to operate on a 1 à to a 3-phase system.

• For three-phase installations, all three load cables should pass through the AC meter to the load.

• For single-phase installations, only one load cable passes through the AC meter to the load. 

1. Disconnect the phase wires from the circuit breakers.

2. Insert the phase power lines through the designated holes on the AC meter

a. IA = phase 1

b. IB = phase 2

c. IC = phase 3

Note - If the phase cables do not fit through the holes, refer to the CT rings sections at the bottom of this page.

3. Reconnect the phase power lines to the original circuit breaker location.

4. For each phase line, append a wire and connect it to the designated voltage terminal on the AC meter

a. Phase 1 to terminal 1

b. Phase 2 to terminal 2

c. Phase 3 to terminal 3

5. Append the neutral wire to terminal 4 on the AC meter.

Please note the following: 

1. Observe the polarity arrows that show the direction of the current flow on the side of the meter.

2. Reversed polarity will result in a disconnection of the meter.

3. AC Load lines pass through the CT rings provided to the load as shown below.  

4. 4. Voltage lines are connected to the lower inputs 1, 2, 3, and 4 terminals. 

CT Rings Installation

In a situation where the phase wires do not fit the in the AC holes, we will need to use the CT rings to view the current information from the phases.

1. Unscrew the top of the CT ring with a small screwdriver.
   

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2. Cable dimensions:

a. Minimum cable thickness 4[mm] or 0.04.”

b. Maximum cable length 30[cm] or 1.18.”

3. Uncover the wire’s plastic insulators.

4. Connect one side of the cable to the CT ring (S1).

5. Pass the cable through the relevant AC Meter phase holes in the specific direction as displayed in the picture below.

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6. Connect the cable to the second connection in the CT ring

(S2)

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