1. Overview
SWJ intelligent digital display instrument takes the single chip microcomputer as the core processing unit, and can be configured with various 4-20mA transmitters to realize real-time data acquisition and processing, accurately display the data changes of monitoring points, and output corresponding analog quantities, relays, and RS485 communication. and other data to realize automatic control.
2. Features
The intelligent monitoring device with single-chip microcomputer as the core processor has strong applicability.
Output the standard analog signal corresponding to the range.
Provides alarm status display and four-level alarm output contacts, and the four-level alarm value can be set independently.
With power-off protection, automatic memory function.
Perfect system self-check function.
The working power supply (+24V) of the transmitter can be provided.
3. Technical parameters
Display mode: Four-digit LED highlight digital tube display is clear and intuitive.
Output signal: standard 4-20mA output (load resistance≤525Ω)
Alarm output: Contact form: normally open contact.
Contact capacity: 5A/AC220V, 2A/DC30V.
Alarm setting: The four-level alarm value can be set arbitrarily within the range.
Working power supply: switching power supply AC85~265V, DC110~340V.
Power consumption: 10W.
The instrument provides a transmitter: DC24V power supply, the transmitter does not need an external power supply.
Environmental conditions: Temperature: Working temperature: 0℃~40℃.
Storage temperature: -25℃~+70℃.
Relative humidity: ≤85%RH.
4. Working principle
The intelligent digital display instrument consists of transmitter, monitoring instrument and connecting cable. The signal output by the transmitter is processed and sent to the single-chip microcomputer system for operation. The calculated data is displayed and converted into 4~20mA analog output, alarm value output and communication output.
5. Terminals
6. Installation size
The appearance of the instrument and the size of the opening are shown in the following figure:
