Ziegler MFM 3430 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, Power, Energy (Active /Reactive/Apparent). The instrument has optional output as one pulse output or two pulse output for energy measurement.
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 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 using front panel keys.
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 15th Harmonic.
High brightness 3 line 4 digits LED display:
Simultaneous display of 3 Parameters
Number of parameters measured: up to 37
The instrument measures 37 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.
Energy Count storage:
In case of power failure, the instrument memorizes the last energy count. Every 40 sec, the instrument updates the energy counter in the non-volatile memory.
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.
Optional MODBUS (RS485) Output
The optional ModBus output enables the instrument to transmit all the measured parameters over standard MODBUS (RS485 ).
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
(2 Outputs – 4-20mA or 0 -1 mA ): 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
Compliance to International standard IEC 61326