Touch Screen - Rish Master 3440i
Touch Screen - RISH Master 3440i is powerful compact monitoring devices for accurate and reliable measurement of important electrical parameters in 3 phase and single phase Network & replaces the multiple analog panel meters.
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User selectable CT Secondary 5A/1A
The secondary of external Current Transformer (CT) can be programmed on site to either 5A or 1A locally by entering into Programming mode or remotely via MODBUS (Rs485)
User selectable PT Secondary
The secondary of external potential Transformer (PT) can be programmed on site locally by entering into programming mode or remotely via MODBUS (RS485)
User selectable 3 phase 3W or 4W unbalanced network
User can program on site the network connection as either 3 Phase 3 Wire or 4 Wire locally by entering into Programming mode or remotely via MODBUS (RS485). For single phase applications, single phase version is available.
Low back depth
The instrument has very low back depth (behind the panel) of less than 80 mm in spite of optional features like pulse output
Onsite selection of Auto scroll / Fixed Screen
User can set the display in auto scrolling mode or fixed screen mode can be programmed locally by entering into Programming mode or remotely via MODBUS (RS485).
Phase reversal indication
The instrument can detect wrong phase sequence or failure of one of the input voltages and displays “phase” error message.
Energy measurement (Import and Export)
Active energy (kWh), Reactive energy (kVArh), Apparent energy (kVAh) & Ampere Hour (kAh). Any of the parameters can be freely assigned to 2 optional pulse outputs.
True RMS measurement
The instrument is capable of True RMS measurement with an impact of harmonics up to 15th order
User selectable Low Current suppression (below 30 mA)
User can suppress the readings below 30 mA in the current measurement by onsite programming if required.
Min Max storage of parameters possible
The instrument stores minimum and maximum values for System Voltage and System Current. Every 40 sec minimum and maximum readings are updated.
Number of parameters measured: more than 46
The instrument measures more than 46 electrical parameters of 3 Phase network.
Parameter Screen recall
In case of power failure, the instrument memorizes the last displayed screen. The displayed screen will get memorized only if user keeps this screen for minimum 40 sec duration before power failure for fixed screen mode.
Phasor Diagram
Pictorial representation of all 3 Phases (Voltage & Current) in terms of vectors.
Wave Form
Pictorial representation of all 3 phases Current & voltage in terms of sinusoidal waveform.
Total Harmonic Distortion (THD)
The instrument can measures per phase (%) THD of voltage and (%) THD of current.
Energy Count storage
In case of power failure, the instrument memorizes the last energy count.
Hour Run, ON Hour, Number of Interruptions
Hour run records the number of hours load is connected. ON Hour is the period for which the auxiliary supply is ON. Number of Interruptions indicates the number of times the Auxiliary Supply was interrupted.
Optional MODBUS (RS485) Output
The optional MODBUS output enables the instrument to transmit all the measured parameters over standard MODBUS (RS485).
User Assignable Registers for MODBUS
Customer can assign MODBUS register address as per his need for faster response time.
Optional Pulse Output ( 2 Relay output / Limit switch )
The instrument can be programmed as Pulse output or Limit Switch.
Pulse Output: The optional pulse output is a potential free, very fast acting relay contact which can be used to drive an external mechanical counter for energy measurement.
Limit switch: The instrument will trip the one or two relays if the programmed parameter exceeds the programmed High & Low Limits.
Configuration of the Instrument via MODBUS
The instrument settings can be configured locally by entering into Programming mode or remotely via MODBUS (RS485)
Note: The MODBUS communication parameters can only be set locally by entering into the Programming mode.
Ethernet Interface (Modbus TCP/IP Protocol)
The optional Ethernet Interface output transmit all the measured parameters on Modbus TCP/IP. Also user can configure their instrument via Ethernet Interface.
Optional Analog Outputs (2 Outputs)
2 Analog outputs can be programmed from a list of input parameters.
Enclosure Protection for dust and water
conforms to IP 54 (front face) as per IEC60529
Compliance to International Safety standards
Compliance to International Safety standard IEC 61010-1- 2001
EMC Compatibility
Compliance to International standard IEC 61326
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