1. Sewage discharge is mainly aimed at differential pressure transmitters, pressure transmitters, float level gauges and other instruments. Since the measurement medium contains dust, oil, tiny particles, etc., which are deposited in the reverse pressure pipe (or deposited in the pressure sensing pipe), it is directly or indirect effects on measurement. The sewage discharge cycle […]
Meter regularly discharges sewage Read More »
The lubrication cycle should be determined according to the specific situation and mainly includes the following parts: 1. Pneumatic cam deflection valves, pneumatic ball valves, pneumatic butterfly valves, and rotating parts of electric actuators; 2. Protection box, door shaft of the insulation box, and fastening bolts of the junction box; 3. Bolts and nuts for
Instruments are regularly lubricated and protected against corrosion Read More »
1. When opening holes for instruments, avoid opening holes in formed pipes. 2. Pay attention to the length of the straight pipe section before and after the flow meter. 3. If there are electromagnetic and mass flow meters with grounding requirements, they should be grounded according to the instructions. 4. When welding process pipelines, the
Precautions during instrument installation Read More »
1. Before installing the instrument, the process pipeline should be purged to prevent ferromagnetic substances retained in the pipeline from adhering to the instrument, affecting the performance of the instrument or even damaging the instrument. If unavoidable, a magnetic filter should be installed at the inlet of the instrument. The instrument itself does not participate
Things to note before installing the instrument Read More »
Level monitoring of corrosive liquids such as acids is a challenging task among many industrial measurement scenarios. Traditional liquid level measurement technologies, such as float, pressure or capacitive sensors, are often unable to cope with high temperature and highly corrosive acidic media. The radar level gauge shows unique advantages in such an environment. Today we
Measurement advantages of radar level gauge in acidic environment Read More »
In the metallurgical industry, coke is an important raw material, and its storage and measurement accuracy are directly related to production efficiency and cost control. As a common storage facility, the accurate measurement of material level in coke greenhouses is particularly important. This article will introduce the basic concepts of coke greenhouses, elaborate on the
Application of radar level meter in coke greenhouse material level measurement Read More »
In the industrial field, electromagnetic flowmeters are widely used, such as flow measurement of circulating water pipelines, fresh water pipelines, and salty sewage pipelines in refinery process units; flow measurement of medium pipelines such as concentrated sulfuric acid, dilute sulfuric acid, and intermediate acids in alkylation units. Flow measurement of pipelines such as alkali liquid
MAIN CONTENTS This company standards set rules for the mass flow meter’s product classification, technical requirements, testing methods, inspection rules and marks, packing, transportation and storage. The standards are applicable to the mass flow meter measuring liquid in the pipe with pressure. NORMATIVE REFERENCES Some basic rules and terms of the following documents are recommended
MASS FLOW METER VERIFICATION REGULATION—Zero Instrument Standards Read More »
1. Overview 1. Under specific flow conditions, part of the fluid kinetic energy is converted into fluid vibration, and its vibration frequency has a certain proportional relationship with the flow rate (flow rate). A flow meter that works based on this principle is called a fluid vibration flow meter. There are currently three types of
Vortex flowmeter maintenance procedures Read More »
How to choose between a programmable logic controller (PLC) and a decentralized control system (DCS) requires a detailed analysis of the specific situation, because different application scenarios have different requirements for the control system. PLC 1. From switching control to sequence control and transportation processing, it is a multi-function such as continuous PID control from
What is the biggest difference between DCS and PLC? Read More »
