Selec EM306A Operating Instructions

selec
EM306A
Operating Instructions
96 x 96

FEATURES

Ø User programmable CT primary and CT secondary.
Ø Memory retention.
Ø Potential free Pulse output for energy.

SPECIFICATIONS

DISPLAY

6 digit 7 segment LED display, Height 0.5"

WIRING INPUT

3 Ø 4 wire, 3 Ø - 3 wire, 2 Ø - 3 wire and
-
1 Ø - 2 wire system

RATED INPUT VOLTAGE

11 to 300V AC (L-N) ;
19 to 519V AC (L-L) Installation Category
III
FREQUENCY RANGE
45-65 Hz
RATED INPUT CURRENT
Nominal 5A AC (Min-11mA, Max-6A)
CT PRIMARY
1A / 5A to 10,000A (Programmable for any Value)
Note : 1A to 10,000A if CT secondary is 1 else CT
primary is 5A to 10,000A
CT SECONDARY
1A or 5A (programmable)
BURDEN
0.5 VA@5A per phase

MEASUREMENT

kWh (resettable)

ACCURACY

Class 1

AUXILIARY SUPPLY RANGE

230V AC, 20%, 50 / 60Hz ±
OUTPUT
Pulse Output : Voltage range: External 4V DC max. 2
Current capacity : 100 mA max
Pulse Width : 100 ms ± 50 ms.
INT : 1000 pulses / kWh
RESOLUTION :
Pulse output
CT Ratio kWh
( kWh / pulse )
<15
0.01 0.01
<150
0.1 0.1
<1500
1 1
£ 2000
10 10
ENVIRONMENTAL CONDITIONS
- Indoor use
- Altitude of up to 2000 meters
- Pollution degree
II
O
Temperature : Operating : -10 to 55 C
O
Storage : -20 to 75 C
Humidity : Up to 85% RH, non-condensing

MOUNTING

Panel mounting
WEIGHT
340gms
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.
CAUTION :
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, steam, caustic vapors,
oils or other unwanted process by products.
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
2
a cross section of 1.5mm . These wires shall have
(AWG 15)
currentcarryingcapacity of 6A.
7. Before attempting work on device, ensure absence of
voltages using appropriate voltage detection device.

INSTALLATION GUIDELINES

CAUTION :
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. 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.
5. The equipment shall not be installed in environmental
conditions other than those mentioned in this manual.
6 . The equipment does not have a built-in-type fuse.
Installation of external fuse of rating 275V AC /
electrical circuitry / battery is highly recommended.

MECHANICAL INSTALLATION

For installing the meter
1. Prepare the panel cutout with proper dimensions s shown
below.
2 . Push the meter into the panel cutout. Secure the
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 0.5 -m
: N (4.42536 Lb-inch)
Screw clamp tightening torque : 0.1 -m
N (0.885 Lb-inch)
Outline Panel cutout
Dimensions (in mm) Dimensions
99 90.5
91.5
99 50
5
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.
TERMINAL CONNECTIONS
L
PULSE O/P
CONNECTIONS DIAGRAM
L1
L2
L3
N
S1 S2 S1 S2 S1 S2 N V1 V2 V3
I 1 I 2 I 3
FRONT PANEL DESCRIPTION
selec
REV
kWh
0.5 Amp for
PRG
USER GUIDE

LED INDICATIONS

a
INT : The INT LED provides optical output for calibration
meter in
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 or presence of
in any or all phases. In such cases meter may not
(in mm) indicate the correct energy consumption. The CT shoul
be connected to the meter with correct polarities
CONFIGURATION
There are 4 dedicated keys with symbols marked as ,
, , . Use these 4 keys to enter into configuration
91.5
menu / change setting.
Note : 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 :
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.
!
Config
Function
page.
Password
1 Change Password
L
O
1.1 New Password
A
D
2 Network Selection
CT Secondary
3
CT Primary
4
Reset Energy
5
Password
5.1
Reset Active Energy
5.01
5.02 Factory Default
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.
Doc. name : OP INST EM306A
EM306A
x10
INT
1000
Impulse
/ kWh
negative power
d
.
,
Range or Factory
Setting
Selection
0000 to 9998 10
No / Yes No
0000 to 9998 10
3P3W / 3P4W
3P4W
1A or 5A 5
1A, 5A to
5
10,000A (10.0kA)
No / Yes No
0001 To 9999 11
No / Yes No
No / Yes
No
OP348-V01(Page 1 of 2)