LDCK type electromagnetic flowmeterDetailed product description：

The LDCK electromagnetic flowmeter (prototype number: BFG-S) is composed of an LDCK electromagnetic flow sensor and a TBS electromagnetic flow converter. It is used to measure the flow rate of liquids in pipelines and can measure corrosive liquids such as acids, alkalis, salts, or two-phase solids mixed in liquids, such as slurry, mud, sewage containing a large amount of impurities, and media with high viscosity.

Flow meters have the characteristics of measuring accuracy that is not affected by changes in physical parameters such as medium pressure, temperature, density (including solid-liquid ratio), viscosity, etc. The instrument is sensitive and has a large measurement range. It has strong anti-interference ability, stable zero point, and reliable operation.

The sensor has an explosion-proof type, with an explosion-proof rating of md Ⅱ BT4.

This product complies with the verification regulations: JJGl98-94 Verification Regulations for Velocity Flowmeters.

□ Characteristics
Programmable low-frequency rectangular wave excitation improves the stability of flow measurement and reduces power loss;
Adopting a 16 bit embedded microprocessor, it has fast computing speed and high accuracy;
All digital processing, strong anti-interference ability. Reliable measurement, high accuracy, and a flow measurement range of up to 1500:1;
Ultra low EMI switching power supply, suitable for a wide range of power supply voltage changes. Good EMC resistance performance;
Full Chinese character menu operation, easy to use, simple to operate, easy to learn and understand;
High definition backlit LCD display;
It has bidirectional flow measurement and bidirectional total accumulation functions, and bidirectional output functions for current and frequency;
There are three integrators inside that can display forward cumulative quantity, reverse cumulative quantity, and differential cumulative quantity respectively;
Capable of outputting RS485 or RS232C digital communication signals;
Equipped with conductivity measurement function, it can distinguish whether the sensor is empty or not;
The constant current excitation current has a wide range and can be used in conjunction with different companies and types of electromagnetic flow sensors;
Equipped with self checking and self diagnostic functions;
Adopting SMD devices and surface mount (SMT) technology, the circuit has high reliability;
The internal design of the instrument has a non power down clock that can record 16 power down times.

□ Main technical indicators

Complete set accuracy:	Caliber of Φ 10-250: ± 0.5%, ± 1.0%
	Caliber of Φ 300-1200: ± 1.0%, ± 1.5%
Dielectric conductivity:	＞20uS/cm
Output signal:	0-10mA DC or 4-20mA DC 0-1kHz
Communication signal:	RS485 or RS232C
Maximum work pressure:	Caliber: Φ 10~50:4.0MPa
	Caliber Φ 65-125:1.6MPa
	Caliber: Φ 150-1000: 1.0MPa
	Caliber Φ 1200: 0.6MPa
Working current:	≤0.5A
Protection level	Standard IP65, special IP67
Power Supply:	The converter power supply is 220V, 50Hz, and the sensor is powered by the converter (24V DC, special order).
Connecting flange:	Machine standard JB/T81-94, national standard GB9119-88 or according to user needs

□ Materials

Main material:	Measurement tube acid resistant steel 1Cr18Ni9Ti
	A3 steel shell
Lining material:	Caliber Φ 10-25: Polytetrafluoroethylene
	Caliber of Φ 50-200: polytetrafluoroethylene or chloroprene rubber
	Caliber of Φ 250-1200: chloroprene rubber
Electrode material:	Molybdenum containing stainless steel OCr18Ni12Mo2Ti
	Titanium Ti
	Tantalum Ta
	Hastelloy alloy, etc
	Platinum Pt
Grounding ring material:	Molybdenum containing stainless steel OCr18Ni12Mo2Ti
	Titanium Ti
	Tantalum Ta
	Hastelloy alloy, etc
	Platinum Pt

The performance and applicable range of commonly used lining materials are shown in Table 1
Table 1

Lining material	Main performance	Scope of application
Polytetrafluoroethylene PTFE	1. It is the most chemically stable material among plastics, capable of withstanding boiling hydrochloric acid, sulfuric acid, nitric acid, and aqua regia, as well as concentrated alkali and various organic solvents. 2. Poor wear resistance and adhesion performance.	1. -40 ℃ to+180 ℃ 2. Strong corrosive media such as concentrated acid and alkali 3. Sanitary media
neoprene （Neoprene）	1. Has excellent elasticity, high tensile strength, and good wear resistance. 2. Resistant to corrosion in general low concentration acid, alkali, and salt media, but not resistant to corrosion in oxidizing media	1. ＜ 65 ℃ 2. Measure general water, sewage, mud, and slurry
Polyurethane rubber (Polyurethane)	1. Has excellent wear resistance (equivalent to ten times that of natural rubber) 2. Poor acid and alkaline resistance	1. ＜ 40 ℃ 2. Neutral strong abrasion slurry, coal slurry, mud
Acid resistant rubber (Hard rubber)	Can withstand hydrochloric acid, acetic acid, oxalic acid, ammonia water, phosphoric acid at room temperature, as well as 50% sulfuric acid, sodium hydroxide, potassium hydroxide, and avoid strong oxidants.	1. ＜ 25 ℃~+90 ℃ 2. General acid, alkali, and salt solutions