In general, Climkit provides the Eastron SDM630Modbus meter, but other models with similar features and sizes may be supplied based on available stock.
For boards with DSO meter panels, it is possible to order DIN rail enclosures with a mounting plate.
DIN rail enclosure on T mounting plate (H: 36cm, W: 21cm)
4. Installation and Configuration
Direct Meter
Connect the phases from the network side at the top (L1, L2, and L3).
Connect the consumer (or photovoltaic inverter) from the bottom (L1, L2, and L3).
Connect the neutral at the top and/or bottom of the meter (N).
Indirect Meter and Current Transformer (CT)
Warning! It is essential to follow the configuration procedure below immediately upon installing the meter. Otherwise, the measurement will not be accurate!
CT Ratio: The CT ratio is equal to the primary current of the CT divided by its secondary current. The primary current is indicated on the CT. The secondary current is 5A.
Caution! The ratio can only be set once on a MID-certified meter. In case of error, the meter must be replaced!
Press the "E" button for 3 seconds and enter the default password (1000) using the "P" and "M" buttons. Confirm by pressing "E" long.Navigate to "CT rate".Press the "E" button for 3 seconds and enter the corresponding CT rate for the primary current of the installed CT according to the table below. Confirm by pressing "E" long.
Primary Current
CT Rate (Ratio)
100 A
20
200 A
40
400 A
80
600 A
120
800 A
160
1000 A
200
1500 A
300
2000 A
400
Voltage Measurement (U): Connect the neutral to N and each phase to L1, L2, and L3. Also connect LA to L1 and NA to N to power the meter.
Current Measurement (I): Open and securely close each CT on each of the phase cables from which the current is to be measured. Connect the S1 (white) and S2 (black) wires from the CT to the top of the meter for each phase.
Voltage and Current Connection Verification: Press the "M" button until the Power Factor (PF) displays for each of the phases L1, L2, and L3. The displayed values should be close to 0.9. If not, the voltage measurement and current measurement are not on the same phase. Move the S1 and S2 pairs to another phase until a correct value is obtained.
To avoid disturbances during this verification on a consumer meter or introduction meter, temporarily switch off the site's photovoltaic inverters.
CT Direction Verification: Press the "P" button until the instantaneous active power (kW) displays for each of the phases L1, L2, and L3. The values should be positive (consumer meter) or negative (production meter) indicated by the sign "-". Always check the introduction meter with the site's inverters triggered so that positive values are obtained. Do not rely on the arrow indicated on the CT. If the indicated value is not in the right direction, reverse the S1 and S2 wires of the phase.
Communication Bus Connection
The meters (Slaves) are connected via an RS485 bus network to the gateway (Master) according to the diagram below.
The bus connection requires careful and meticulous work. For new boards, it is recommended to do it in the workshop and to use a type U72 shielded cable 4 x 0.8mm2.
