J&D Electronics Multi-GEM 12 User Manual

User's Guide – Multi-GEM 12
For the more information of Multi-GEM 12, please refer full version manual (soft copy)
that you can get via e-mail and homepage.
1. Introduction
Multi-GEM 12 is installed in electric distribution and local panels for supplying power
to their production line. It measure the voltage and current, and calculate the power in
real-time. You can monitor and manage the energy of equipment. It can help to
operate efficiently and to reduce the energy consumption.
This equipment is capable of accurate analysis and diagnosis equipment for various
problems of energy management and power plants.
2. Characteristics
■ Multi channel power meter (Multi-GEM 12) is able to measure and monitor multi
electric power loads.
■ Max 12 single phase or 4 3P4W feeders power monitoring
■ Measurement : V (L-N, L-L) , A, Hz, PF, Unbalance, Power(P,Q,S), Energy (P,Q,S).
■ 1.0/0.5 Class accuracy for power measurement conformed by IEC61557-12
■ Flexible application for the single phase/ 3phase 4wire / 3phase 3wire power line.
■ Sag/Swell / Over Current / Temp Alarm.
■ Total Harmonics Distortion (THD)
■ Support Ethernet (Modbus TCP) and Wi-Fi.
■ Support Cloud energy platform.
■ Compact size for easy installation in narrow space (62 x 96 x 56 mm)
3. Specification
Model Specification
Power system 3P3W, 3P4W, 1P2W, 1P3W
Power Input 100~240 VAC, Max. 50/60 Hz
415 V 3~ L-L (240V L-N), CAT Ⅲ Max. 1000 A, 3~
Measuring Voltage
50/60 Hz
Inputs Frequency
100mA or 333mV
Rating CT type
Communication LAN
Wi-Fi (Option)
Usage Indoor
Altitude up to 2,000 m
Operating Temperature -10℃~55℃
Storage Temp. -25℃~70℃
Maximum relative humidity 80% R.H. for tempera-
Humidity tures up to 31 °C decreasing linearly to 50 % R.H.
relative humidity at 40 °C
Standards IEC 61557-12
Measurement
Display
Item
Unit Digit
Phase voltage V 0.0 ~ 99,999
Line voltage V 0.0 ~ 99,999
Line current A 0.0 ~ 99,999
Active power W ±0 ~ 999,999,999
Reactive power Var ±0 ~ 999,999,999
Apparent power VA 0.0 ~ 999,999,999
Frequency Hz 45.00 ~ 65.00
Item
Power Factor
Temp. (NTC)
Voltage unbalance
Current unbalance
Phase angle
THD
Active Energy
kWh
Reactive Energy
kVarh
Apparent Energy
kVAh
4. Installation
It needs to avoid a place where direct interference exists like as high temperature and
electromagnetic field for the installation. Please check the environment condition
around Multi-GEM 12 below for a correct operation.
Item
Location
Operation temp,
Storage temp,
Operation humidity
1. Create two 4mm holes using the mounting hole guide in manual.
→ The upper left and lower right position of the 68 x 46mm rectangle.
2. Fix the product by using bolts provided.
5. Name of parts
�
�
Accuracy
±0.2% Reading
� �
±0.2% Reading
�
±0.2% Reading
Class 0.5S
Class 0.5S
Class 0.5S
Display
Accuracy
Unit
% ± 100.00
℃ -20.0 ~ 100.00
% 00 ~ 100.00
% 00 ~ 100.00
° 00 ~ 360.00
% 00 ~ 100.00 ±0.5% Full scale
0.0 ~ 999,999,999
0.0 ~ 999,999,999
0.0 ~ 999,999,999
Condition
Indoor
-10°C to 55°C [14°F to 122°F]
-25°C to 70°C [-13°F to 158°F]
Non condensation,5% R.H. to 80% R.H.
Wall mount : 4mm hole, 2EA
68mm
46mm
�
�
❹
�
❷ ❸
No. Name Description
1 Screw fixing holes Screw holes for fixed terminals
2 Supply the control power to the gems 3512 (AC/DC 100~240V)
Control Power , Wire Size : 12 ~ 24AWG
N : Neutral (AC), -(DC) connection, A : Line (AC), +(DC) connection
3 Voltage Input Voltage input terminal for measurement , Wire Size : 12 ~ 24AWG
Communication with Master (Modbus Slave)
4 Ethernet Port Protocol : Modbus TCP/IP
Speed : 10/100 Mbps Automatic selection
5 CT Port CT Input Terminal
Cloud Version
LED
상태
Power connection
WiFi router connection ready (Soft AP)
6 Status LED
WiFi router connection ready
The connection attempt to the Cloud
Device Authentication after the Cloud connect
Equipment installation complete
Firmware Update
7 Wall mount Bolt spec : D = 4mm / L = 55mm
8 Upgrade Port Upgrade Port
CTs are connected to this terminal. The terminal must meet the correct side of CT to
measure power correctly.
◆ Example of CT wiring
How to use
( )
◇ Wiring with a CT should follow the direction of CT that power line side is at S1( ) of CT and Load
side is at S2( ) of CT
LEFT CENTER RIGHT
ON
ON
BLK OFF OFF
OFF BLK OFF
OFF OFF BLK
OFF GLOW OFF
BLK