Eastron SDM120 Series, Manual

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3
Performance criteria
Operating humidity
Storage humidity
Operating temperature
Storage temperature
International standard
Accuracy class
Protection against penetration
of dust and water
Insulating encased meter of
protective class
2
4
SDM120A/D/DB
Technical Data
1
Safety Instructions
Information for your own safety
This manual does not contain all of the safety measures for operation of
the equipment(module,device),because special operating conditions,
and local code requirements or regulations may necessitate further
measures. However, it does contain information which must be read
for your personal safety and to avoid material damages. This information
is h i g h l i g h t e d b y a w a r n i n g t r i a n g l e a n d i s represented a s f o l l o w s ,
depending on the degree of potential danger.
Warning
This means that failure to observe the instruction can result in
death, serious injury or considerable material damage.
Caution
This means hazard of electric shock and failure to take the
necessary safety precautions will result in death, serious injury
or considerable material damage.
Qualied personnel
Operation of the equipment (module, device) described in this manual
may only be performed by qualied personnel. Qualied personnel in
this manual means person who are authorized to commission, start
up, ground and label devices, systems and circuits according to safety
and Regulatory standards.
Use for the intended purpose
The equipment (device, module) may only be used for the application
specied in the catalogue and the user manual, and only be connected
with devices and components recommended and approved by EASTRON.
Proper handling
The prerequisites for perfect, reliable operation of the product are proper
transport, proper storage, installation and assembly, as well as proper
operation and maintenance. When operating electrical equipment, certain
parts of this equipment automatically carry dangerous voltages. Improper
handling can therefore result in serious injuries or material damage.
Use only insulating tools.
Do not connect while circuit is live (hot).
Place the meter only in dry surroundings.
Do not mount the meter in an explosive area or expose the meter
to dust, mildew and insects.
Make sure the used wires are suitable for the maximum current of
this meter.
Make sure the AC wires are connected correctly before activating
the current/voltage to the meter.
Do not connect the meter to a 3 phase - 400VAC - network.
Do not touch the meter connecting clamps directly with your bare
hands, with metal, blank wire or other material as you may get an
electrical shock.
Make sure the protection cover is placed after installation.
Installation, maintenance and reparation should only be done by
qualied personnel.
Never break the seals and open the front cover as this might inuence
the functionality of the meter, and will avoid any warranty.
Do not drop, or allow physical impact to the meter as there are high
precision components inside that may break.
≤ 90%
≤ 95%
-25°C - +55°C
-40°C - +70°C
IEC 62053-21
1
IP51
II
Specications
Nominal voltage(Un)
Operational voltage
Insulation capabilities
- AC voltage withstand
- Impulse voltage withstand
Basic current (Ib)
Maximum rated current (Imax)
Starting current
Over current withstand
Operational frequency range
Internal power consumption
Pulse Output 230V
176/276V
4KV for 1 minute
6KV-1.2µS
5A
45A
0.4% Ib
30Imax for 0.01s
50-60Hz
≤ 2W/10VA/phase
1000imp/kWh
Basic errors
0.05Ib Cos φ = 1
0.1Ib Cos
φ
= 0.5L
Cos φ = 0.8C
0.1Ib – Imax Cos
φ
= 1
0.2Ib – Imax Cos φ = 0.5L
Cos
φ
= 0.8C
±1.5%
±1.5%
±1.5%
±1.0%
±1.0%
±1.0%
With balanced loads
With single phase load
0.1Ib – ImaxCos φ = 1
0.2Ib – Imax Cos φ = 0.5L
±2.0%
±2.0%
Dimensions
17
.
5m
m
35mm
6
2
m
m
Height
Width
Depth
Weight
119mm
17.5mm
62mm
0.1Kg(net)
Foreword
T h a n k y o u f o r p u r c h a s i n g t h e E A S T R O N S D M 1 2 0 S E R I E S D I N r a i l
single phase two wires energy meter. With the EASTRON product range
we have provided a large scale of energy meters on the market suitable
for 230V AC (50Hz). SDM120 series are only 1 module (17.5mm)
w i d t h , e n s u r i n g a h i g h a c c u r a c y c l a s s ( b e t t e r t h a n C l a s s 1 ) , a very low
s t a r t i n g c u r r e n t w h i c h m a k e s i t e x c e p t i o n a l l y s u i t a b l e f o r sub-meteri
-ng system and general use.
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:sales@eastron.com.cn Web:www.eastron.com.cn
!
Single Phase DIN Rail kWh Meter