Rishabh Instruments Limited
Touch Screen - Rish EM 3490DSi

Touch Screen - Rish EM 3490DSi

RISH EM 3490 DSi Is specifically designed for Dual Source Energy Metering   which measures important electrical parameters of Utility (in normal mode) & Generators (in Power back up mode) both in Three phase and Single phase Network

Dual Source Energy Measurements

Separate energy calculations for utility and generator.

Forwarded energy calculations in case of current reversal.

Direct Cost calculations

Separate direct cost calculations for utility and generator.

Cycle wise Bar Graph representation of Generator Energy Consumption

Power Quality Measurement

Measurable up to 56th (50Hz) / 46th (60Hz) harmonic on each phase. Maximum any 6 harmonics can be monitored simultaneously for each phase.

Measurement of RMS value of fundamental and per phase voltage and current harmonics.

(%) THD of per phase voltage and current

Distortion factor of individual harmonics.

Graphical Analysis

Per phase individual harmonic bar graph representation.

Real time vector representation of all 3 Phases for complete system analysis.

Energy class 0.5S as per IEC 62053

Active energy (kWh), Fundamental Reactive energy (kVArh) & Apparent energy (kVAh) measurement.

Accuracy as per IEC 62053-22, IEC62053-23

Impulse for energy verification

Onsite programmable for user desired application

Onsite programmable input voltage (100VLL to 500 VLL), input current (1A or 5A) and system configuration (3 phase 4Wire (unbalanced) or 3phase 3Wire (unbalanced) network).

Onsite programmable CT ratio & PT ratio.

Wide auxiliary power supply range 60-300VAC/DC.

Run Hour, ON Hour, Number of Interruptions

Displays parameters for both mode utility and generator.

Old Register

This register holds the value before the last reset . The old value will be available when scrolled through screen.

Time Of DAY (TOD / TOU)

Easy programmable tariff schedule

4 seasons, 4 tariff energy registers

4 types of days and 6 time zones per day

Automatic daily profile storage for a one day& one month

Cost per kWh calculation

Configurable billing date for monthly billing

Event Logging

Generator Start / Stop Event logging with Date and Time stamping up to 20 events.

Max Demand (W, VAr, VA and Current) storage with Date and Time stamping of last event.

ACCL(Auto Connect Current Limit)

Current limiter with auto connect feature.

User programmable autoconnect cycles.

Connect time 3 sec. and disconnect time 8 sec. and hysteresis 2%

Custom colour setting

User can assign individual colour for each phase as per the

application requirement through display and MODBUS.

Phase sequence detection

Incorrect phase sequence indication or phase failure indication on any of the input voltages.

Direct remote access via MODBUS

Remote access of measured and configuration parameters.

User Assignable Registers for MODBUS.

Programmable baud rates up to 38.4kbps.

Optional Pulse Relay Output

Potential free, very fast acting relay contact

Configurable as pulse output which can be used to drive an external counter for energy measurement.

Optional pulse output one for Utility and another for Generator.

Compliance to International Safety standards

Compliance to International Safety standard IEC 61010-1-2010

EMC Compatibility

Compliance to International standard IEC 61326.

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