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N21 Digital Panel Meter

The N21 meter is a digital programmable panel mounted instrument designed to measure d.c. voltages or d.c. currents: unipolar or bipolar, temperature with use of thermocouples J (Fe-CuNi), K (NiCr-NiAl) and Pt100 resistance thermometers. The readout field is an OLED graphic display with a resolution of 32×128 points.
The eCon program is designed for the configuration of the N21 meter. The meter should be connected to a PC via a mini USB connector located on the rear of the meter.

Following parameters can be set:
• Measuring input
• Display precision of the result (decimal point)
• Relay output operating mode
• Thresholds triggering the relay output
• Time delays of the relay output triggering
• Individual characteristic for measuring signal
• Automatic or manual temperature compensation of cold junctions
• Averaging time of the measurement
• User-defined units of measured signal
• Bargraph configuration.
Meter output signals are isolated from the input signals and power supply.

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N24 Digital Panel Meter

Meters of the N24 and N25 series are digital instruments destined for the measurement of d.c. voltage or d.c. current: uni or bipolar, temperature through J, K thermocouples, Pt100 resistance thermometers and for the measurement of a.c. voltage and a.c. current. A LED display (4 digits for N24 and 5 digits for N25 meter series) constitutes the readout field. The LPCon program is destined for the configuration of N24 and N25 meter series. One must connect the meter with the PC computer through the PD14 programmer.
Following parameters can be reprogrammed:
– thresholds of displayed overflows,
– precision of the displayed result (decimal point),
– measurement averaging time ,
– counting of indications (individual characteristic),
– automatic or manual compensation: cold junction temperature for measurements with thermocouples, or wire resistance for Pt100 measurements (only in N24T and N24S meters).
All meters are galvanically separated between the supply, measuring inputs and the programmer input
Protection grade from the frontal side: IP65.
Meter overall dimensions: 96 x 48 x 64 mm (with terminals).

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N25 Digital Panel Meter

Meters of the N24 and N25 series are digital instruments destined for the measurement of d.c. voltage or d.c. current: uni or bipolar, temperature through J, K thermocouples, Pt100 resistance thermometers and for the
measurement of a.c. voltage and a.c. current. A LED display (4 digits for N24 and 5 digits for N25 meter series) constitutes the readout field. The LPCon program is destined for the configuration of N24 and N25 meter series. One must connect the meter with the PC computer through the PD14 programmer.
Following parameters can be reprogrammed:
– thresholds of displayed overflows,
– precision of the displayed result (decimal point),
– measurement averaging time ,
– counting of indications (individual characteristic),
– automatic or manual compensation: cold junction temperature for measurements with thermocouples, or wire resistance for Pt100 measurements (only in N24T and N24S meters).

All meters are galvanically separated between the supply, measuring inputs and the programmer input
Protection grade from the frontal side: IP65.
Meter overall dimensions: 96 x 48 x 64 mm (with terminals).

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N30H Digital Panel Meter

The N30H meter is a programmable digital panel meter destined for the measurement of d.c. voltage or d.c. current. Additionally, the meter enables the indication of the current time. The readout field is a LED display, which allows the exposition of results in colours: red, green and orange. The measured input signal can be arbitrary converted by means of a 21-point individual characteristic.
Features of the N30H meter:
l display colour individually programmed in three intervals,
l programmable thresholds of displayed overflows,
l 2 NOC relay alarms operating in 6 modes,
l 2 switched relay alarms with a switching contact operating in 6 modes (option),
l signaling of the measuring range overflow,
l automatic setting of the decimal point,
l programming of alarm and analog outputs with the reaction on the chosen input quantity (main or auxiliary input),
l real-time clock with the function of the clock supply support in case of the meter supply decay,
l programmed averaging time – function of walking window with the averaging time up to 1 hour,
l monitoring of set parameter values,
l interlocking of introduced parameters by means of a password,
l recount of the measured quantity on the base of a 21-point individual characteristic,
l service of the interface with MODBUS protocol in the RTU mode (option),
l conversion of the measured value into a standard – programmable current or voltage signal (option),
l highlight of any measuring unit acc. to the order.

l signaling of alarm operation – switching the alarm on causes the highlight of the output number,
l galvanic separation between connectors: alarm, supply, input, analog output connections and RS-485 interface.
Protection degree from frontal side: IP65
Meter overall dimensions: 96 x 48 x 93 mm (with terminals).
The meter casing is made of plastics.

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N30O Digital Panel Meter

The programmable digital panel meter N30O is destined for measurements:
number of pulses, frequency, period, work-time, encoder position. Additionally, the meter enables the  indication of the current time. The readout field is a LED display, which allows the exposition in colors: red, green and orange. The measured input signal can be arbitrary converted by means of mathematics functions and/or a 21-point individual characteristic.
Features of the N30O Meter:
l display colour individually programmed in three ranges,
l programmable thresholds of displayed overflows,
l 2 NOC relay alarms operating in 6 modes,
l 2 switched relay alarms with a switching contact operating in 6 modes (option),
l signaling of measuring range overflow,
l automatic setting of the decimal point,
l programming of alarms and analog outputs with the reaction on the selected input quantity (main or auxiliary input),
l additional counter input,
l control inputs of the main input work, additional or both simultaneously,
l signaling of additional input state,
l possible control of counter operation by means of the meter keyboard,
l automatic reset of counters at the set point value
l real-time clock with the function of the clock supply support in case of the meter supply decay,
l programmed averaging time – function of walking window with the averaging time up to 1 hour,
l monitoring of set parameter values,
l locking of introduced parameters by means of a password,
l mathematic functions for measured value calculation,
l recount of the measured quantity on the base of the 21-point individual characteristic,

l interface with MODBUS protocol in the RTU mode (option),
l firmware updating by RS485 interface (option)
l conversion of the measured value into a standard – programmable current or voltage signal (option),
l highlight of any measuring unit acc. to the order.
l signaling of alarm operation – switching the alarm on causes the highlight of the output number,
l galvanic separation of pulse inputs between them,
l galvanic separation between terminals: alarm, supply, input, analog output, auxiliary supply, RS-485 interface.
Protection grade from frontal side: IP65
Meter overall dimensions: 96 x 48 x 93 mm (with terminals).
The meter casing is made of plastic.

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N30U Digital Panel Meter

The N30U meter is a programmable digital panel meter destined for measurements of signals originating from standard sensors destined for temperature measurements and for the measurement of analog standard signals applied in automation. Additionally, the meter enables the indication of the current time. The readout field is a LED display, which allows the exposition of results in colors: red, green and orange. The measured input signal can be arbitrary converted by means of a 21-point individual characteristic.
Features of the N30U meter:
l display colour individually programmed in three intervals,
l programmable thresholds of displayed overflows,
l 2 NOC relay alarms operating in 6 modes,
l 2 switched relay alarms with a switching contact operating in 6 modes (option),
l signaling of measuring range overflow,
l automatic setting of the decimal point,
l programming of alarm and analog outputs with the reaction on the selected input quantity (main or auxiliary input),
l real-time clock with the function of the clock supply support in case of the meter supply decay,
l programmed averaging time – function of walking window with the averaging time up to 1 hour,
l monitoring of set parameter values,
l locking of introduced parameters by means of a password,
l recount of the measured quantity on the base of the 21-point individual characteristic,
l service of the interface with MODBUS protocol in the RTU mode (option),
l conversion of the measured value into a standard – programmable current or voltage signal (option),
l highlight of any measuring unit acc. to the order,

l signaling of alarm operation – switching the alarm on causes the highlight of the output number,
l galvanic separation between connections: alarm, supply, input, analog output, output of the auxiliary supply, RS-485 interface.
Protection grade from frontal side: IP65
Meter overall dimensions: 96 x 48 x 93 mm (with terminals).
The meter casing is made of plastic.

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NA3 Digital Meter With Bargraph

NA3 series meters with a multi-colored bargraph have an universal input destined to measure temperature, resistance, voltage from shunts, standard signals, d.c. voltage and d.c. current. NA3 meters can optionally have a continuous analogue output, relays, OC type (Open Collector) and digital RS-485 outputs. They can find application in various industrial fields, e.g. food industry, intermediate pumping stations, sewage treatment plants, chemical industry, weather stations, breweries.
NA3 meters are executed in three basic versions:
 NA3-F with a 4-digit LED readout field (digit height: 7 mm) and a multicolour bargraph,
 NA3-D with a 4-digit LED readout field (digit height: 14 mm),
 NA3-B with a multicolour bargraph.
The type choice is made in the execution code.
They are programmed by means of the keyboard and through RS-485. Meters only with the bargraph can be programmed through RS-485.
NA3 meters realise following functions:
– measurement of the input quantity and displaying it on the display and/or the bargraph,
– evaluation of the input signal into indication on the base of the individual linear characteristic,
– programming of the colour and bargraph resolutions (no concerns NA3-D),
– signalling of alarm value setting exceeding,
– recording of the measured signal in programmed time segments,
– storage of maximal and minimal values,
– programming of the indication resolution,
– programming of the measurement averaging time,
– locking of the parameter introduction by means of a password,
– conversion of the measured quantity into a voltage or current output signal,
– service of the RS-485 interface in MODBUS protocol, both in ASCII and RTU mode.

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NA5 Digital Meter With Bargraph

NA5 series meters with multicoloured bargraphs have an universal input destined to measure temperature, resistance, voltage from shunts, standard signals, d.c. voltage and d.c. current. They can find application in various industrial fields, e.g. food industry, intermediate pumping stations, sewage treatment plants, chemical industry, weather stations, breweries. They are destined for the visualisation of the measured value and evaluation of change trends of checked technological processes. They can also find application in automation systems where programmed controllers are applied. NA5 meters can have in option: a continuous analogue output, a relay output, open collector (OC) type outputs and an RS-485 digital output. They are programmed by means of the keyboard and through RS-485.
NA5 meters realise following functions:
– measurement of the input quantity and displaying it on the display and the bargraphs,
– recounting of the input signal into indication on the base of the individual linear characteristic,
– arithmetical functions: raising to a power, extraction of roots,
– programming of colours and bargraph resolutions,
– signalling of alarm value setting exceedings,
– recording of the measured signal in programmed time segments,
– storage of maximal and minimal values,
– programming of the measurement averaging time,
– programming of the indication resolution,
– deadlock of the parameter introduction by means of a password,
– conversion of the measured quantity into a voltage or current output signal,
– service of the RS-485 interface in MODBUS protocol, both in ASCII and RTU mode.

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NA6 Digital Meter With Bargraph

NA6 series meters with multicoloured bargraphs have an universal input destined to measure temperature, resistance, voltage from shunts, standard signals, d.c. voltage and d.c. current. They can find application in various industrial fields, e.g. food industry, intermediate pumping stations, sewage treatment plants, chemical industry, weather stations, breweries. They are destined for the visualization of the measured value and evaluation of change trends of checked technological processes. They can also find application in automation systems where programmed controllers are applied.

NA6 meters can have in option: a continuous analogue output, a relay output, open collector (OC) type outputs and an RS-485 digital output. They are programmed by means of the keyboard and through RS-485.
NA6 meters realise following functions:
– measurement of the input quantity and displaying it on the display and the bargraphs,
– recounting of the input signal into indication on the base of the individual linear characteristic,
– arithmetical functions on channels: addition, subtraction, multiplication, division, raising to a power, extraction of roots,
– programming of colours and bargraph resolutions,
– signalling of alarm value setting exceedings,
– recording of the measured signal in programmed time segments,
– storage of maximal and minimal values,
– programming of the measurement averaging time,
– programming of the indication resolution,
– deadlock of the parameter introduction by means of a password,
– conversion of the measured quantity into a voltage or current output signal,
– service of the RS-485 interface in MODBUS protocol, both in ASCII and RTU mode.

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ND10 – Three Phase Power Network Meter

The ND10 meter is a digital programmable panel meter destined for the measurement of the 3-phase, 4-wire power network parameters in balanced and unbalanced systems. It is also capable of displaying measured quantities and their simultaneous digital transmission. The meter is also capable of controlling and optimization of the power electronic devices, systems, and industrial installations. The meter can be used for measuring: RMS value of voltage and current; active, reactive and apparent power; active and reactive energy, power parameters; frequency, 15-, 30- and 60-minute mean active power and THD. Additionally, a current in the neutral wire is calculated from the phase current vectors . Voltage and current values are multiplied by given voltage and current ratios of measuring transformers. Power and energy indications take into account all programmed ratio values. Any and all measured values can be sent to the master via the RS-485 interface. The relay outputs signal alarm when selected parameters exceed set limits. Impulse output can be used for consumption check of the 3‑phase real energy. This meter is also able to detect and signal incorrect phase sequence. The meter is powered by the measuring circuit, i.e. from the voltage output.
There is a galvanic separation between following units of the meter:
– voltage and current inputs,
– RS-485 output,
– impulse output.

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ND20 – 1 And 3 Phase Network Parameters Meter

The N20D meter is a digital programmable panel meter destined for the measurement of single-phase power network parameters (2-wire network) and 3-phase, 3,4-wire network in balanced and unbalanced systems with the simultaneous display of measured quantities on a LCD display. The meter enables the control and optimization of power electronics devices, systems and industrial installation operations. The meter ensures the measurement of: rms values of voltage and current, active, reactive and apparent power, active, reactive energy, power factors, frequency, 15, 30, 60 minutes’ mean active power, archive of power profile, THD and harmonic measurements. Additionally, the current value in the neutral wire is calculated. Voltages and currents are multiplied by given voltage and current ratios of measuring transformers. Indications of power and energy take into consideration values of programmed ratios. The value of each measured quantity can be transmitted to the master system through the RS-485 interface. The relay output signals the overflow of the chosen quantity, and the pulse output can be used for the consumption check of 3-phase active and reactive energy. The meter has additionally a continuous current output.
The meter has a galvanic separation between respective blocks:
– supply,
– measuring inputs,
– voltage and current inputs,
– analog output,
– RS-485 output,
– impulse output.

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ND20Lite – Network Parameters Meter

The ND20LITE meter is a digital programmable panel meter destined for the measurement of single-phase power network parameters (2-wire network) and 3-phase, 3,4-wire network in balanced and unbalanced systems with the simultaneous display of measured quantities on a LCD display. The meter enables the control and optimization of power electronics devices, systems and industrial installation operations. The meter ensures the measurement of: rms values of voltage and current, active, reactive and apparent power, active, reactive energy, power factors, frequency, 15, 30, 60 minutes’ mean active power, THD. Additionally, the current value in the neutral wire is calculated. Voltages and currents are multiplied by given voltage and current ratios of measuring transformers. Indications of power and energy take into consideration values of programmed ratios. The value of each measured quantity can be transmitted to the master system through the RS-485 interface. The relay output signals the overflow of the chosen quantity, and the pulse output can be used for the consumption check of 3-phase active and reactive energy.
The meter has a galvanic separation between respective blocks:
– supply,
– measuring inputs,
– voltage and current inputs,
– RS-485 output,
– impulse output.

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ND30PNET – Power Network Meter

ND30PNET meter is a digital programmable instrument designed to measure network parameters of single-phase 2-wire and three-phase 3 and 4-wire balanced and unbalanced systems. The measured values are displayed on a color graphic screen TFT 3.5” with a resolution of 320 x 240 pixels. The meter enables the control and optimization of power electronic devices, systems and industrial installations. It provides measurement of: RMS voltage and current, active, reactive and apparent power, active, reactive and apparent energy, power factor, frequency, harmonic currents and voltages /up to 51st/, THD of current and voltage, average active and apparent power, P Demand, S Demand, averaged current I Demand /15, 30 or 60 minutes/. Voltages and currents are multiplied by given current and voltage transformer ratios of measuring  transformers. Indications of power and energy include the values of programmed ratios. The values of the measured quantities can be transmitted to the host system through RS485 interface or Ethernet / Profinet interface, relay outputs signal overruns of the selected parameters, programmable analog output maps the assigned parameter. Temperature inputs can be used to control the temperature of the windings of
transformers, motors.
The meter has a galvanic separation between the individual blocks of:
– power supply,
– voltage inputs,
– current inputs,
– RS485 Interface,
– Ethernet/Profinet interface,
– alarm outputs,
– analog output,
– Pt100 sensor input.

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Three Phase Power Network Meter

The N14 meter is a programmable digital panel instrument destined for the measurement of 3-phase, 3 or 4-wire power network parameters, in balanced or unbalanced systems with the simultaneous display of measured quantities and digital transmission of their values. This network parameter meter enables the control and optimization of power electronic devices, systems and industrial installations. The N14 meter ensures the measurement of: RMS voltage and current, active, reactive and apparent power, active and reactive energy, power factors, frequency, mean active power (e.g. 15-min mean power). Voltages and currents are multiplied by given current and voltage ratios of measuring transformers. Indications of power and energy take into consideration programmed ratio values. The value of each measured quantity can be transmitted to the master system through the RS-485 interface. The relay output signals the exceeding of the chosen quantity and the impulse output can be used for the consumption control of the 3-phase active energy. The meter has a detection and signaling of incorrect phase sequence. The meter is fixed to the panel by means of screw holders.

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