n20plus

Product catalog summary

Overview: The N20PLUS is a digital panel meter designed for measuring DC current, voltage, and temperature. It features a three-color LED display and supports RS-485 communication using the Modbus RTU protocol.

Specifications:

Inputs: Capable of measuring DC current, voltage, and temperature (Pt100, J, K thermocouples).
Display: 5-digit LED with a height of 14 mm, capable of displaying in red, green, or orange based on the value.
Outputs: Includes two OC type alarm outputs and a 24 V DC output for transducer supply.
Interface: RS-485 with Modbus RTU protocol, supporting various baud rates up to 115.2 kbit/s.
Power Supply: Operates on 85-253 V AC/DC or 20-40 V AC/20-60 V DC with power consumption under 6 VA.
Environmental Conditions: Operating temperature range from -10°C to 55°C, storage from -25°C to 85°C, and relative humidity below 95%.

Features:

Programmable parameters via RS-485 using eCon software, including alarm settings, display color intervals, and measurement averaging time.
Automatic or manual compensation for temperature and wire resistance.
Protection grade IP65 from the front and IP10 from the terminal side.

Safety and Compatibility:

Complies with EN 61000-6-2 for noise immunity and EN 61000-6-4 for noise emissions.
Meets safety requirements according to EN 61010-1.

Ordering Information: The product can be customized based on input type, supply voltage, unit display, version, language, and acceptance tests. Codes are provided for each configuration option.

Connection Diagrams: Detailed diagrams are provided for electrical connections, including RTD and thermocouple setups.

Catalog excerpts

- DIgITAL PANEL METER wITH RS-485 Measurement of d.c. current or voltage and temperature (Pt100, J, K). Three-colour LED display (5 digits, 14 mm high). digital output RS-485 - Modbus RTU protocol. Two alarm outputs of OC type. Programmable parameters through RS-485 interface using the free eCon software: – recounting of indications (individual characteristic), – two alarms of OC type operating in 6 working modes, – display colour programmable in three intervals, – thresholds of displayed overflows, – highlight of the unit, – automatic or manual compensation: temperature of cold ends (for J, K) or wire resistance (for Pt100), – measurement averaging time. • Additional output 24 V d.c. for supplying of object transducers. EXAMPLE OF APPLICATION Alarms configuration through eCon program Measurement and signalling of temperature overﬂows or d.c. current galVanic isolation Supply

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LUMEL EVERYTHING COUNTS N20PLUS - DIGITAL PANEL METER with RS-485TECHNICAL DATA iNPUTS RATED OPERATiNG CONDITIONS SAFETY AND COMPATIBILITY REQUIREMENTS Electromagnetic compatibility

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N20PLUS - digital panel meter with RS-485 GND24V GND AL2 Sygnały GND24V GNDA Sygnały pomiarowe 24V pomiarowe 24VAL2 AL1 GNDA RS485 B AL1 A GNDRS485 B Rys. 3. Gabaryty miernika Rys. 3. Gabaryty miernika Rys. 3. Gabaryty miernika 4.1. Schematy 4.1. Schematy podłączeń podłączeń4.1. Schematy podłączeń Rys. 4. Połączenia elektryczne miernika N20PLUS Rys. 4. Połączenia elektryczne miernika N20PLUS connection diagrams AL2 A Sygnały pomiarowe 24V GND Sygnały pomiarowe 24V RS485 B GNDA AL2 measuring signals AL1 GND GND24V A AL1 A Sygnały pomiarowe 24V GND24V GNDA AL2 24V GNDGNDRS485 B Rezystor w Rezystor...

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