5
Installation
We recommend that the connecting wire which is used to connect the
meter to the outside circuit should be sized according to local codes
and regulations for the capacity of the circuit breaker or over current
device used in the circuit.
An external switch or a circuit-breaker should be installed on the inlet
wire, which will be used as a disconnection device for the meter. And
there it is recommended that the switch or circuit-breaker is near the
meter so that it is more convenience for the operator. The switch or
circuit-breaker should comply with the specications of the buildings
electrical design and all local regulations.
The meter has to be installed against a wall which is re resistant.
The meter has to be installed in a good ventilated and dry place.
T h e m e t e r h a s t o b e i n s t a l l e d i n a p r o t e c t i o n b o x w h e n p l a c e d i n
dangerous or dusty environment.
The meter can be installed and used after being tested and sealed with
a letter press printing.
The meter can be installed on a 35mm DIN rail or direct on a meter board
with screws.
The meter should be installed in an available height so that it is easy
to read.
When the meter is installed in an area with frequent surges due to e.q.
thunderstorms, welding machines, inverters etc, protect the meter with
Surge Protection Devices.
After nishing installation, the meter must be sealed to prevent tampering.
Wiring of the wires should be done in accordance with the underneath
connection diagram.
6
Wiring Diagram
1/5
2/6
3/7
4
9/10
JIAXING EASTRON ELECTRONIC INSTRUMENTS CO., LTD.
Add: No.1369 Chengnan Road, Nanhu, Jiaxing, Zhejiang, 314001, China
Tel: +86-573-83698881 /83698882 Fax: +86-573-83698883
Email:[email protected] Web:www.eastrongroup.com
Operation
8
Consumption indication
On the SDM630D's front panel, there are four LEDs, in which top three
LEDs are for three phase voltage and the other one is impulse indication
for active energy measurement. The constant of the impulse is shown
on the nameplate of the meter.
Reading the meter
The SDM630D energy meter is equipped with 6+1 LCD display, which
is used as recording consumption and can't be reset to zero.
Pulse output
SDM630D DIN rail energy meter is equipped with a pulse output which
is fully separated from the inside circuit. T h a t g e n e r a t e s pulses in
proportion to the measured energy. They are test pulse output (pins
9 & 10). Usually, the test pulse output is used as testing accuracy or reading
purpose in close quarters.
The test pulse output is a polarity dependant, passive transistor output
requiring an external voltage source for correct operation. For this
external voltage source, the voltage (Ui) should be 5-27V DC, and the
maximum input current (Imax) should be 27mA DC. To connect the
impulse output, connect 5-27V DC to connector 9 (anode), and the
signal wire (s) to connector 10 (cathode). The meter pulse is indicated
on the front panel.
Ia IN/OUT
Ib IN/OUT
Ic IN/OUT
Neutral wire
Test pulse output contact
DIN Rail
Installation Diagram
7
35m
m
10
13
12
11