0.01
0.1
1
10
Ø
Ø
Ø
User programmable CT primary and CT secondary.
Memory retention.
Potential free Pulse output for energy.
DISPLAY
BURDEN
MEASUREMENT
segment LED display, Height 0.5”
3 Ø 4 wire, 3 Ø - 3 wire, 2 Ø - 3 wire and
1 Ø - 2 wire system
11 to 300V AC (L-N) ; 19 to 519V AC (L-L)
Installation Category
45-65 Hz
Nominal 5A AC (Min-11mA, Max-6A)
1A / 5A to 10,000A (Programmable for any Value)
1A to 10,000A if CT secondary is 1 else CT
primary is 5A to 10,000A
1A or 5A (programmable)
Less than 8VA
Class 1
Voltage range: External 4V DC max.
Current capacity : 100mA max
100 ms
50 ms.
1000 pulses / kWh
6 digit 7
0.5 VA@5A per phase
kWh (resettable)
WIRING INPUT
RATED INPUT VOLTAGE
FREQUENCY RANGE
RATED INPUT CURRENT
CT PRIMARY
Note :
CT SECONDARY
POWER CONSUMPTION
ACCURACY
OUTPUT
Pulse Output
Pulse Width :
INT
:
-
±
III
:
2
selec
EM306A
Operating Instructions
FEATURES
SPECIFICATIONS
ENVIRONMENTAL CONDITIONS
MOUNTING
WEIGHT
- Indoor use
- Altitude of up to 2000 meters
- Pollution degree
Temperature :
Humidity
: Up to 85% non-condensing
Panel mounting
340gms
II
°
°
°
°
Operating : -10 C to 55 C
Storage
: -20 C to 75 C
96 x 96
N
S2
S1
S2
S1
S2
S1
V1
N
L
O
A
D
I
1
V2
V3
L1
L2
L3
I
2
I
3
PULSE
OUTPUT
L
N
+
CONNECTIONS DIAGRAM
TERMINAL CONNECTIONS
FRONT PANEL DESCRIPTION
OP348-V02
EM306A
PRG
selec
I
NT
kWh
REV
x10
1000
Impulse
/ kWh
CONFIGURATION
There are 4 dedicated keys with symbols marked as ,
,
,
. Use these 4 keys to enter into configuration
menu / change setting.
The settings should be done by a professional
after going through this users manual and after having
understood the application situation.
For the configuration setting mode :
Note :
,
!
Use (
) and (
) keys for 3sec. to enter or exit from
configuration menu.
Use (
) and (
) keys for increasing and decreasing
parameters value respectively.
Use (
) key to go back to previous page.
Use (
) key to save the setting and move on next page.
!
!
!
Function
Range or
Selection
Config
page.
Factory
Setting
Password
Change Password
New Password
Network Selection
CT Secondary
CT Primary
10
10
No
3P4W
1
1.1
2
3
4
5
5
0000 to 9998
No / Yes
3P3W / 3P4W
1A or 5A
1A, 5A to
10,000A (10.0kA)
0000 to 9998
For resetting energy parameters user will be prompted for
password. If correct password is entered, the user will be
able to reset all energy parameters. This password will be
value which will be greater than the configuration password
by 1.
Factory Default
Reset Energy
Password
Reset Active Energy
5.02
5
5.1
5.01
11
No
No
No
No / Yes
No / Yes
0001 To 9999
No / Yes
<15
<150
<1500
£
2000
Pulse output
( kWh / pulse )
CT Ratio
kWh
0.01
0.1
1
10
RESOLUTION :
INT : The INT LED provides optical output for calibration
verification as well as visual indication of energy
integration. The pulse rate is 1000 Pulses/kWh.
X10 : X10 LED ON when the resolution is 10. It is the
indication of count reading which must be multiplied by
10 to get actual kWh consumed.
REV : REV LED gives the indication of reversal of two
or more CT connections
presence of
In such cases meter may not
indicate the correct energy consumption. The CT shoul
be connected to the meter with correct polarities
or
negative power
in any or all phases.
d
.
USER GUIDE
LED INDICATIONS
110V AC, 20%, 50 / 60Hz
±
230V AC, 20%, 50 / 60Hz
±
Product
ORDER CODE INFORMATION
Supply
EM306A
EM306A-110V
Installation Category
III
1. This equipment, being built-in-type, normally becomes a
part of main control panel and in such case the terminals
do not remain accessible to the end user after installation
and internal wiring.
2. Conductors must not come in contact with the internal
circuitry of the equipment or else it may lead to a safety
hazard that may in turn endanger life or cause electrical
shock to the operator.
3. Circuit breaker or mains switch must be installed
between power source and supply terminals to facilitate
power 'ON' or ‘OFF’ function. However this switch or
breaker must be installed in a convenient position
normally accessible to the operator.
4.
5. The equipment shall not be installed in environmental
conditions other than those mentioned in this manual.
. The equipment does not have a built-in-type fuse.
Installation of external fuse of rating 275V AC /
Amp for
electrical circuitry
is highly recommended.
Before disconnecting the secondary of the external
current transformer from the equipment, make sure that
the current transformer is short circuited to avoid risk of
electrical shock and injury.
6
0.5
/ battery
INSTALLATION GUIDELINES
CAUTION :
SAFETY PRECAUTIONS
All safety related codifications, symbols and
instructions that appear in this operating manual or on
the equipment must be strictly followed to ensure the
safety of the operating personnel as well as the
instrument.
If the equipment is not used in a manner specified by
the manufacturer it might impair the protection provided
by the equipment.
Do not use the equipment if there is any mechanical
damage.
Ensure that the equipment is supplied with correct
voltage.
1. Read complete instructions prior to installation and
operation of the unit.
2. Risk of electric shock.
3. The equipment in its installed state must not come in
close proximity to any heating sources, oils, steam, caustic
vapors or other unwanted process by products.
CAUTION :
WIRING GUIDELINES
WARNING :
1. To prevent the risk of electric shock, power supply to the
equipment must be kept OFF while doing the wiring
arrangement.
2. Wiring shall be done strictly according to the terminal
layout. Confirm that all connections are correct.
3. Use lugged terminals.
4. To reduce electromagnetic interference use of wires with
adequate ratings and twists of the same in equal size shall
be made with shortest connections.
5. Layout of connecting cables shall be away from any
internal EMI source.
6. Cable used for connection to power source, must have a
Thesewires shall have current carryingcapacityof 6A.
7. Copper cable should be used
8. Before attempting work on device, ensure absence of
voltages using appropriate voltage detection device.
2
2
cross section of 0.5mm to 2.5mm
( 20 to 14AWG ; 75 C(min)).
0
(Stranded or Single core cable).
OUTLINE
Dimensions (in mm)
PANEL CUTOUT
(in mm)
Dimensions
90.5
99
99
5
50
91.5
91.5
For installing the meter
1. Prepare the panel cutout with proper dimensions s shown
below.
a
2
meter
. Push the meter into the panel cutout. Secure the
in
its place by fitting the clamp on the rear side. Fit clamps on
both sides in diagonally opposite location for optimum
fitting.
3. For proper sealing, tighten the screws evenly with required
torque.
Terminal screw tightening torque :
0.68 N-m to 0.79 N-m ( 6.018 In-Lb to 6.992 In-Lb )
Screw clamp tightening torque : 0.1N-m (0.885 Lb-inch)
MECHANICAL INSTALLATION
MAINTENANCE
1. The equipment should be cleaned regularly to avoid
blockage of ventilating parts.
2. Clean the equipment with a clean dry or damp cloth.
Do not use any cleaning agent other than water.
Doc. name : OP INST EM306A
OP348-V02A(Page 1 of 2)
