Thermal Gas Mass Flow Meter, DN65-DN1000

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Stock: In Stock
Model: RDDLZ-FLOW-TGFM
Weight: 1.00
SKU: RDDLZ-FLOW-TGFM

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The thermal gas mass flow meter is an instrument to measure the gas flow by the principle of thermal diffusion. Convenient installation and low maintenance cost. Thermal gas mass flow meter adopts a variety of signals to achieve automation.

Specification

Model	RDDLZ-SUP-MF
Structural Form	plug-in type
Measuring Medium	common steady state gas
Pipe Diameter Range	DN65-DN1000
Velocity Range	0.1-100 Nm/s
Accuracy	±2.5%
Working Temperature	Sensor: -40°C ~ 300°C; Converter: -20°C ~ 45°C
Pressure	≤2.5 MPa
Power Supply	AC 220V; DC 24V
Response Speed	1s
Output Signal	4-20 mA, RS485
Alarm	1-2 normally open contacts
Display	liquid crystal display
Sensor Material	stainless steel
Level of Protection	IP65

Features

Easy to install and maintain.
Good seismic performance and long service life.
No temperature and pressure compensation is required for gas flow measurement.
RS485 communication or HART communication, can achieve factory automation, integration.

Dimension (unit: mm)

Port Size	A	B
DN65-DN200	431mm	250mm
DN200-DN500	551mm	370mm
DN500-DN1000	811mm	630mm

Thermal Gas Mass Flow Meter Wiring Instruction

Note: (This is demonstrated by the accumulator, PLC system with (4~20)mA receiving function or other devices can be wired in this way.)

Installation Requires

Installation of the flowmeter should be away from elbows, obstacles, reducers and valves to ensure a stable flow field, one side of the upper limit requires a longer straight pipe, the front straight pipe length is greater than 10D, after the straight section is greater than 5D. the following chart for the field often encountered in several cases of the required length of the straight pipe section:

Pipe Installation Type	No.	Front Straight Pipe Section	Back Straight Pipe Section
Horizontal Pipe	1	10D	5D
Bend	2	10D	5D
Expanded Pipe	3	15D	5D
Downstream of Gate	4	20D	5D
Shrinkage Pipe	5	20D	5D
Pump Downstream	6	30D	5D

Installation Precautions

If the thermal gas mass flow meter is installed outdoors, it should be covered with a meter sunshade to avoid sunshine and rain.
Prohibit installation in strong vibration occasions.
Prohibit exposure to environments containing large amounts of corrosive gases.
Do not share the power supply with inverters, welding machines and other equipment that pollute the power supply. If necessary, install purified power supply for the converter.

Application

Tips: Advantages of Thermal Gas Mass Flow Meter

It is convenient and accurate to measure gas flow without temperature and pressure compensation.
Compared with the general measuring equipment, the gas flowmeter has good seismic performance and long service life. The sensor has no moving parts and pressure sensing parts, and is not affected by vibration on the measurement accuracy.
Easy installation and maintenance. If site conditions permit, it can be installed and maintained without stopping production.
Digital design. Overall digital circuit measurement, accurate measurement, easy to maintain.

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