Ultrasonic Gas Flow Meter, Air/ Argon, DN25-DN150

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Model: RDDLZ-FLOW-KLO
Weight: 1.00
SKU: RDDLZ-FLOW-KLO

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Good price RDDLZ-KLO ultrasonic gas flowmeter for sale, the use of advanced technology production, all the key components of high-performance original parts, is a high-precision, high-reliability new precision gas flowmeter instrument. Gas ultrasonic flow meter optional DN25-DN150 diameter, available air, nitrogen, argon, compressed air and other measurement media.

Specification

Model	RDDLZ-KLO
Nominal Diameter	DN25-DN150
Working Pressure	Default 1.6MPa (If you need 2.5MPa, please contact us)
Output Signal	4-20mA, RS485 output (wiring can be selected according to the site conditions)
Flow Range	1-1400m3/h
Measuring Medium	Nitrogen, argon, air, natural gas, coal gas, propane, butane, methane gas, mixed gas, helium, compressed air carbon dioxide, flue gas and other gases
Flow Rate Signal	200KHz±10%, Vpp≥10mV
Temperature Signal	Analog signal output from temperature sensor
Pressure Signal	Analog signal output from pressure sensor
Accuracy Class	0.1
Measurement Range Ratio	1:40
Power Supply	24VDC, battery powered
Installation	Flange pipe type
Internal Power Supply	3.6V lithium battery, real-time display of battery capacity
External Power Supply	5~24VDC, ripple <50mV, the system automatically switches the external power supply, the external power supply adopts DC-DC management mode.
Power Consumption	Internal power supply: average power consumption ≤ 1.5mw, two lithium batteries can be used continuously for more than 2 years.
Power Consumption	External power supply: average power consumption ≤1W
Ambient Temperature	-20°C~60°C
Relative Humidity	5%RH~95%RH
Atmospheric Pressure	70kPa~106kPa
Medium Condition	The measured medium should be a single-phase gas without vortex and without impurities such as oil and dirt.
	The flow rate and pressure range of the measured medium should be within the range specified by the flow meter.
	Temperature range of the measured medium: -30℃~80°C

Flow Meter Flow Range

Model	Nominal Diameter	Starting Flow Rate	Flow Range	Measurement Accuracy	Net Weight
KLO-25	DN25	0.02m³/h	1–40m³/h	1%m³/h	/
KLO-40	DN40	0.05m³/h	6–100m³/h	1%m³/h	/
KLO-50	DN50	0.07m³/h	4–160m³/h	1%m³/h	8.7kg
KLO-80	DN80	0.1m³/h	8–400m³/h	1%m³/h	12.5kg
KLO-100	DN100	0.2m³/h	16–700m³/h	1%m³/h	23kg
KLO-150	DN150	0.4m³/h	20–1400m³/h	1%m³/h	35.5kg

Feature

Flange connection, durable shell, not easy to corrode installation, disassembly, easy maintenance
Long-term use is not easy to rust.
Stainless steel electrical interface, effectively preventing the entry of water and dust, can extend the service life.
High-performance circuit board with stable, high precision and the use of high-quality components can effectively filter stray interference.

Dimension (unit: mm)

Nominal Diameter	B	1.6MPa					2.5MPa
Nominal Diameter	B	H	D	d	K	n-∅L	H	D	d	K	n-∅L
DN25 (1'')	200	307	115	65	85	4–∅14	307	115	65	85	4–∅14
DN40 (1 1/2'')	200	345	150	84	110	4–∅18	345	150	84	110	4–∅18
DN50 (2'')	200	345	165	99	125	4–∅18	345	165	99	125	4–∅18
DN80 (3'')	240	393	200	132	160	8–∅18	393	200	132	160	8–∅18
DN100 (4'')	300	403	220	156	180	8–∅18	411	235	156	190	8–∅22
DN150 (6'')	450	428	285	211	240	8–∅22	435	300	211	250	8–∅26

Installation Requirements

Unidirectional operation: (fluid flows in one direction)

Without rectifier, along the fluid direction, the length of the front straight pipe should be >10DN and the length of the rear straight pipe should be >3DN.
With rectifier, along the fluid direction, the length of the front straight pipe should be >5DN and the length of the rear straight pipe should be >3DN.

Bi-directional operation: (fluid flow in both directions)

Without rectifier, length of front straight pipe should be ≥10DN, length of rear straight pipe should be >10DN.
With rectifier, the length of the front straight pipe should be >5DN and the length of the rear straight pipe should be >5DN.

Typical Feature Curves

Typical characteristic curves of flow meters are shown in the figure, with the Y-coordinate representing the basic error of the flow meter and the X-coordinate representing the percentage of maximum flow rate.

Application

Tips: How to read ultrasonic gas flow meter?

Ultrasonic gas flow meter related measurement parameters are displayed on the liquid crystal screen of the meter, which can be read directly.Gas flow meter's head adopts special connection structure, when the meter is restricted by the installation environment, which affects the normal reading, the head can be rotated at an arbitrary angle of 0~350° to facilitate the reading.

When the flow meter works in “0” zone, the power transformer supplying power to the safety grid should meet the requirements. It is not allowed to replace the components or structure, so as not to affect the explosion-proof performance.

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