Selec EM306A - Digital Energy Meter Manual

FEATURES

• User programmable CT primary and CT secondary.
• Memory retention.
• 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 to10,000A (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

0.5VA @ 5A per phase

MEASUREMENT

kWh (resettable)

ACCURACY

Class1

AUXILIARY SUPPLY RANGE

230V AC, ± 20%, 50 / 60Hz

OUTPUT

Pulse Output: Voltage range: External 24V DC max.
Current capacity: 100 mA max

Pulse Width: 100 ms ± 50 ms.

INT: 1000 pulses / kWh

ENVIRONMENTAL CONDITIONS

• Indoor use
• Altitude of up to 2000 meters
• Pollution degree II

Temperature: Operating: -10 to 55 ºC
Storage: -20 to 75 ºC

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.

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 byproducts.

WIRING GUIDELINES

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 cross section of 1.5mm² (AWG 15). These wires shall have current carrying capacity of 6A.
7. Before attempting work on device, ensure absence of voltages using appropriate voltage detection device.

INSTALLATION GUIDELINES

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 / 0.5Amp for electrical circuitry / battery is highly recommended.

MECHANICAL INSTALLATION

For installing the meter

1. Prepare the panel cutout with proper dimensions as shown below.
2. Push the meter into the panel cutout. Secure the meter 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 0.5 N-m: (4.42536 Lb-inch)
   Screw clamp tightening torque: 0.1 N-m (0.885 Lb-inch)

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

FRONT PANEL DESCRIPTION

USER GUIDE

CONFIGURATION

There are 4 dedicated keys with symbols marked as , , , . Use these 4 keys to enter into configuration 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 page.	Function	Range or Selection	Factory Setting
	Password	0000 to 9998	10
1	Change Password	No / Yes	No
1.1	New Password	0000 to 9998	10
2	Network Selection	3P3W / 3P4W	3P4W
3	CT Secondary	1A or 5A	5
4	CT Primary	1A, 5A to 10,000A(10.0kA)	5
5	Reset Energy	No / Yes	No
5.1	Password	0001 To 9999	11
5.01	Reset Active Energy	No / Yes	No
5.02	Factory Default	No / Yes	No

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.

NETWORK SELECTION AND WIRING INPUT

APPLICATION OF PULSE OUTPUT

TYPICAL WIRING DIAGRAM

# All fuse types: 0.5A class CC UL type; 0.5A fast acting 600V

(Specifications subject to change as development is a continuous process.)

Selec Controls Pvt. Ltd., India
Tel. No.: +91-22-28476443/1882
Fax No.: +91-22-28471733 I Toll free: 1800 227 353
Website: www.selec.com I Email: sales@selec.com