ECRAS 3 & KLEA 4 User Manual

1.1 Features and Models
ECRAS 3/4, and KLEA 4 models can be used to measure electrical parameters like current, voltage,
frequency, harmonic, etc. in 3-phase systems. Devices have the following features optionally.
• RS485 (Modbus RTU) Communication Interface
• Energy Meters
• 2nd Tariff
• Ability to store minimum, maximum and demand values
• Run hour, On hour and power ınterruption counters
• Digital Input/Output
• Alarm Relay Output
• Indication for phase loss and phase sequence at current and voltage inputs.
• THDV, THDI
• Up to 31 current and voltage odd harmonics

1.2 Correct Usage and Conditions For Safety
• Installation and wiring must be performed by authorized technicians in accordance with the
instructions in the user manual. Do NOT commission the device before proper wiring.
• Make sure the device is de-energized before connecting to the mains.
• Short-circuit the k-l terminals of the current transformer in another location before disconnecting the
current transformers. Failing to do so will cause dangerously high voltages in the secondary terminals
of the current transformers.
• Use a dry cloth to clean the device. Do NOT use alcohol, thinner, or any abrasive materials.
• Make sure all wiring is properly made before commissioning the device.
• Do NOT open the device. There are no serviceable parts by the user.
• Keep the device away from humidity, water, vibrations, and dust.
• It is advisable to connect a circuit breaker or an automatic fuse between the current input of the device
and the mains (2 amps).

1.3 Front Panel
• VLN  wil be active while displaying phase
neutral voltage. “V” LED will be active for unit.
VLL  wil be active while displaying phase
phase voltage. “V” LED will be active for unit.
• I  wil be active while displaying current. “A”
LED will be active for unit.
• IN  wil be active while displaying neutral
current. “A” LED will be active for unit.
• F  wil be active while displaying frequency.
“Hz” LED will be active for unit.
• PF  wil be active while displaying Power
Factor.
• P  wil be active while displaying Active
Power. “W” LED will be active for unit.
• Q  wil be active while displaying Reactive
Power. “VAr” LED will be active for unit.
• S  wil be active while displaying Apparent
Power. “VA” LED will be active for unit.
• THD  will be active while displaying Total Harmonic Distortion values. In addition to the “THD” LED, “VLN” is active
for total voltage harmonic distortions , and “I” LED is active for total current harmonic distortions. “%” LED will be
active for unit.
• ENR  will be active in Energy menu. “Wh” and “VArh”LEDs will be active for unit. Export values are shown with the
“-” (Minus) sign.
• DMD  will be active in Demand menu. In addition to the “DMD” LED, icons of the parameter displayed (I, P, Q, S)
and icons (A, W, VAr, VA) units will be active.
• SET  is used to show the menus where the value change is restricted by user.
• L1 / L2 / L3  are LEDs that shows the phase status. These LEDs will be active if the voltage and the current
signals is applied to the device at the same time. These LEDs will be fl ashing (0.5 sec on 0.5 sec off) if only the
voltage signals are applied.
• SEQ  will be active if there is a phase sequence error.
• UNB  will be active while displaying voltage unbalance.
• TOT  will be active while displaying the total values of related parameters.
• AVG  will be active while displaying the avarage values of related parameters.
• MIN  will be active while displaying the minimum values of related parameters.
• MAX  will be active while displaying the maximum values of related parameters.
•  will be active in case of alarm.
• RLY 1 / RLY 2  will be active when the relay is active as a result of alarm.
•  INFO (Device Info) will be active in INFO menu.
•  Indicates the communication status.