Product Description

Application: Rish Master ***0 measures important electrical parameters in 3 phase and single phase Network & replaces the multiple analog panel meters. It measures electrical parameters like AC current, Voltage, frequency, active energy import & active energy export. The instrument has optional output as one pulse output or two pulse output for energy measurement. Product Features: On site programmable PT/CT ratios: It is possible to program primary of external potential Transformer (PT), primary of external Current Transformer (CT) on site via front panel keys by entering into Programming mode. User selectable CT Secondary 5A/1A The secondary of external Current Transformer (CT) can be programmed on site to either 5A or 1A using front panel keys. User selectable 3 phase 3W or 4W User can program on site the network connection as either 3 Phase 3 Wire or 4 Wire using front panel keys. 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 *0 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 using front panel keys. Phase reversal indication The instrument can detect wrong phase sequence or failure of one of the voltages. It displays “phase reversal” error message when phase sequence of 3 Phase Voltages is not correct or when one or two phases out of the three phases fail. The instrument will not display any measured values until the correct phase sequence is restored. (When all the 3 voltages are absent, the “Phase reversal” error message is not displayed and instrument shows measured values) Energy measurement (Import and Export): Active energy (kWhr), Reactive energy (kVArhr) and Apparent energy( kVAhr). Any of the parameters can be freely assigned to 2 optional pulse outputs. True RMS measurement The instrument measures distorted waveform up to *5th Harmonic. High brightness 3 line 4 digits LED display: Simultaneous display of 3 Parameters Number of parameters measured: up to *8 The instrument measures *8 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 *0 sec duration before power failure for fixed screen mode. Energy Count storage: In case of power failure, the instrument memorizes the last energy count. Every 1 sec , the instrument updates the energy counter in the non-volatile memory. User selectable Low Current suppression (below *0 mA) User can suppress the readings below *0 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 *0 sec minimum and maximum readings are updated. Optional MODBUS (RS**5) Output The optional ModBus output enables the instrument to transmit all the measured parameters over standard MODBUS (RS**5 ). Optional Pulse Output ( 1 or 2 Relay 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. Optional Analog Outputs (1 or 2 Outputs): 1 or 2 Analog outputs can be programmed from a list of parameters. Enclosure Protection for dust and water: conforms to IP *4 (front face) as per IEC****9 Compliance to International Safety standards Compliance to International Safety standard IEC *******- ***1 EMC Compatibility Compliance to International standard IEC ****6