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N30U

Product catalog summary

Overview: The document provides technical specifications and features of the N30U Digital Panel Meter by LUMEL S.A., designed for measuring temperature, resistance, and standard signals with galvanic isolation.

Specifications:

Inputs: Supports Pt100, Pt500, Pt1000, various thermocouples (J, K, N, E, R, S types), voltage, and current inputs.
Outputs: Includes relay outputs, analog outputs (0/4-20mA, 0-10V), and OC outputs.
Display: 5-digit LED display with a three-color indication (red, green, orange) and a height of 14 mm.
Communication: RS-485 interface with MODBUS RTU protocol, supporting various baud rates.
Power Supply: Operates on 85-253 V AC/DC or 20-40 V AC, 20-60 V DC.

Features:

Programmable via keyboard or RS-485 interface using LPConfig software.
Four alarm outputs with LED signaling, operating in six modes.
Capability to convert measured values into analog signals.
Storage of minimum and maximum values for all measured quantities.
21-point individual characteristic for measured values.

Safety and Compatibility:

Electromagnetic compatibility according to EN 61000-6-2 and EN 61000-6-4.
Basic isolation between circuits as per EN 61010-1.
Pollution grade 2 and installation category III.
Maximal phase-to-earth operating voltage: 300 V for supply circuit, 50 V for other circuits.

Environmental Conditions:

Operating temperature: -25 to 55°C, storage temperature: -30 to 70°C.
Relative humidity: 25-95% (condensation inadmissible).
Altitude: < 2000 m above sea level.

Ordering Information: The document provides a detailed ordering code system for specifying supply voltage, additional outputs, unit codes, version, language, and acceptance tests.

Additional Information: The document includes connection diagrams, external features, and ordering examples, emphasizing the flexibility and customization options available for the N30U Digital Panel Meter.

Catalog excerpts

LUMEL S.A. ul. Sulechowska 1 65-022 Zielona Gora POLAND www.lumel.com.pl N30U DIGITAL PANEL METER LUMEL EVERYTHING COUNTS Measurement: temperature, resistance, standard signals. 3-colour display (14 mm high), programmable in 3 ranges of the measured value. Meter programming from keyboard or through the RS-485 interface by means of the free LPConfig program. 4 alarm outputs with signalling on LED diodes, working in 6 different modes. Conversion of any measured value into an analog signal 0/4...20 mA or 0...10 V. Storage of minimal and maximal values for all measured quantities. Supply of object transducers (ver. N30U-1XXXXXXX). 21-point individual characteristic for the measured value. Example of Application Measurement and visualization of analog standard signals: Pt100, TC, 20 mA, 60 mV, 10 V. Measured parameters are transmitted to the HMI operator panel through radio modules. Input Input kind Additional error - due to automatic compensation of the reference junction temperature - due to automatic compensation of the cable resistance for thermoresistors < 0,5°C - due to automatic compensation of the cables for resistance measurement < 0,2Q - from temperature changes 100 % of the class / 10 K

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EVERYTHING COUNTS N30U DIGITAL PANEL METER External Features Readout field Rated Operating Conditions Safety And Compatibility Requirements Electromagnetic compatibility Connection Diagrams See Also: Free LPConfig software for easy programming of products. Additional output signals (option) 0> G> iS-485 A °(4>"Z0rnA AL3 AL4 A 0-.10 V Standard signals: 0...10 V and 0...20 mA Thermocouple Resistor, RTD sensor in two wire system KD7 recorder with MODBUS master protocol for recording data measured by N30U. Resistor, RTD sensor in three wfre system I 1 I 2 I 3 I 4 I 5 I 6 I 7 I 8 I Connection of...

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