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Basic measuring range of thermal air mass flow meters
Choose a flowmeter and understanding the measurement range of the flowmeter can help us make a better choice.
View MoreHow many ways are there to power a metal tube float flow meter?
Time: 2024-07-30
Equipment Configuration：metal tube float flow meter
DQR metal tube float flowmeter provides a variety of power supply methods: local indication type, 220VAC50Hz with signal output, battery power supply without output, 24VDC 2-wire system without backlight and 3-wire 4-wire system with backlight.
Project Overview
The power supply methods of the DQR series metal tube float flowmeter include the following:
1. Local indication type, square or round blue meter head, mechanical pointer indicates instantaneous flow.
2..220VAC 50Hz power supply, 4-20mA signal output, with backlight: suitable for standard industrial AC power supply, while providing 4-20mA current signal output, and the instrument display can be equipped with a backlight.
3. Battery powered, no signal output: suitable for application scenarios that do not require external power supply and do not require remote signal transmission.
4.24VDC two-wire power supply, 4-20mA signal output, without backlight: Suitable for DC power supply, providing standard 4-20mA signal output, but no backlight function.
5.24VDC three- or four-wire power supply, 4-20mA signal output, with backlight: also suitable for DC power supply, in addition to 4-20mA signal output, it can also have backlight display, three-wire or four-wire Control involves additional functional circuits, such as HART output signals.
These power supply methods cover various needs from portable or remote area applications without signal output to complex industrial automation systems. Users can choose the most appropriate power supply and signal output method according to the actual application scenario.
