with Alarm Switch Glass Rotor Flowmeter

 Alarm Switch, Glass Rotor Flowmeter

with Alarm Switch Glass Rotor Flowmeter

Model NO.: Lzb
Main Application: Water, Wastewater, Diesel Fuel, Fuel Oil, Nature Gas, Corrosive Liquid/Gas
Sensor: Tube/Flange
Type: Variable Area Flow Meter
Measuring Principle: Mechanics
Certification: JIS, DIN, ANS, GB, CE, UL, RoHS, ISO
LCD: Yes/No
Medium: Liquid, Air, Gas
Enclosure: Alarm Limit Switch
Specification: sgs, iso
HS Code: 90261000
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Basic Info

Accuracy: ±0.2-0.5%
Size: DN10-50
Application: Industrial Production
Measuring Media: Liquid
Measurement Object: Closed Pipeline

Ex-Proof: Intrinsic Safety/ Explosion-Proof
Signal: 4-20mA, Pulse, RS485, Hart
Pressure: Suitable for Very High Pressure
Trademark: U-ideal
Origin: Tianjin, China

Product Description

Lzb-Series Glass Rotor Flowmeter with Alarm Switch
can be used for measure volume flow of liquid or air, example air flow measuring, water flow test, diesel oil flow meter.

Working principle

Rotameter with alarm switch bistable magnetic excitation functions using the magnetron, magnetic float to achieve contacts with the opening and closing. Relays and other components to achieve with their own sound, light alarm needs.

Functions and Applications

BJ01: Limit alarm switch
BJ02: Lower limit alarm switch
BJ01 and BJ02 alarm switch can be at maximum, in the middle, the minimum value of any traffic signals. Alarm switch mounted on sliding rails, select the desired location. When the magnetic float switch position is reached or exceeded, i. e. A signal. At this point the internal contacts open or closed.

Technical parameters

Working pressure: ≤ DC100V or AC100V Working Current: ≤ 0.5A switch, constant current: ≤ DC0.3A interdiction Power: ≤ 10W
Insulation resistance> 10 Working temperature: 0 º C – +55 º C Protection class: IP65 lag (open or closed position) ≤ 4mm


1 installation, try to stay away from the external magnetic interference devices, such as large motors.
2 fluid medium can not contain ferromagnetic impurities
3 should be installed in the pipe vibration, in order to prevent malfunction of the switch contacts.

LZS-Series with alarm switch flowmeter installation dimensions
LZS-series plastic pipe flowmeter technology parameters with alarm switch

Glass rotameter-flow meter
Float type flow meter
For liquid and gas

Low cost rotameter
Low flow rate flow meter

Visual flow meter

Model LZB-40 LZB-50 LZB-80 LZB-100 LZB-100
mm Φ 40 Φ50 Φ 80 Φ100 Φ100
Range l/h 160-1600 √160-1600 1-10 m³/h 5-25 m³/h √20-90 m³/h
√180-1800 400-4000 1.6-16 m³/h √6-35 m³/h √20-100 m³/h
√250-2500 600-6000 √2-20 m³/h 8-40 m³/h √30-100 m³/h
√300-3000 √800-8000 √3-25 m³/h √12-60 m³/h √50-120 m³/h
√400-4000 √1-10 m³/h √8-40 m³/h √16-80 m³/h
√1-5 m³/h √4-16 m³/h
√1.5-6 m³/h
N m³/h 4-40 √6-60 50-250
√5-50 10-100 80-400 √60-200 √300-1500
6-60 16-160 √750-7500l/min √80-400 √300-1600
√7-70 √20-200 √60-600 √100-500 √400-2000
√8-80 √3-300 120-600 √500-2500
√10-100 √50-250 200-1000
Accuracy (±%) 1.5 1.5 1.5 1.5 1.5
Mpa ≤0.6 ≤0.6 ≤0.4 ≤0.4 ≤0.4