Lumel N30U User Manual

1
DIGITAL PANEL METER
N30U TYPE
USER’S MANUAL

Lumel N30U Specifications

General

Display	4-digit LED
Accuracy	±0.2% of range
Input	0...20 mA, 4...20 mA
Power Supply	85...253 V AC/DC or 20...40 V AC/DC
Protection Grade	IP65 (front)
Output	Relay
Dimensions	96 x 48 mm
Measurement Range	Depending on the input signal type
Weight	0.2 kg

Summary

1. APPLICATION AND METER DESIGN

2. METER SET

3. BASIC REQUIREMENTS, OPTIONAL SAFETY

4. INSTALLATION

4.1. Lead-out of Signals

Details the signals connected to the meter's terminals.

4.2. Examples of Connections

Illustrates various methods for connecting different signals.

5. SERVICE

5.1. Display Description

Explains the elements and indicators on the meter's display.

5.2. Messages after Switching the Supply on

Describes messages shown when the meter is powered on.

5.3. Functions of Buttons

Details the functionality of each button on the meter's front panel.

5.4. Programming

Covers the process of configuring meter parameters and settings.

5.4.1. Value Change Way of the Selected Parameter

Details the process for modifying parameter values using buttons.

5.5. Manufacturer's Parameters

Lists the default factory settings for meter parameters.

6. INTERFACE RS-485

6.1. Connection Way of the Serial Interface

Explains how to connect the meter using the RS-485 serial interface.

6.2. Description of the MODBUS Protocol Implementation

Details the MODBUS protocol used for communication.

6.3. Description of Applied Functions

Lists the MODBUS functions supported by the meter.

6.4 Mapa rejestrów

Provides a map of the meter's registers for data access.

6.5. Registers for Write and Readout

Describes registers that can be written to or read from.

6.6. Registers Only for Readout

Lists registers that are exclusively for reading data.

7. ERROR CODES

8. TECHNICAL DATA

9. ORDER CODES

10. MAINTENANCE AND GUARANTEE