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06

Jun

2017

Carbon monoxide usage scenarios

The carbon monoxide detector is a high-brightness liquid crystal indicating gas detection instrument that can be flexibly configured with a variety of different gas sensors. The in
31

May

2017

How does a carbon monoxide detector work

The carbon monoxide gas alarm uses a carbon monoxide sensor to convert the concentration signal of carbon monoxide gas in the air into a weak current or voltage signal, and then th
23

May

2017

Which scenarios are refrigerant leak detectors used for

The transition from fluorocarbons (CFCs) to hydrochlorofluorocarbons (HCFCs) to fluorinated refrigerants (HFCs), which do not contain chlorine, is a direct alternative with improve
16

May

2017

the advantages of portable gas detectors

The portable gas detector is small in size, easy to carry, and can be used at any time when it is turned on. It is suitable for continuously detecting the percentage concentration
08

May

2017

The function of ultrasonic cable altimeter

Electric power, communication transmission cable measurement, electric locomotive electric cable and trolleybus, large industrial enterprises, power transmission and transformation
30

Apr

2017

Working principle of ultrasonic cable Height Meter

When using this instrument, the line maintenance worker does not need to touch the power (communication) overhead line, manual operation, and it can be completed instantaneously. T
22

Apr

2017

How to use the tachometer

1. According to the specific conditions of the rotating object to be tested, select suitable connectors, such as rubber joints. 　　2. Use the rotary range switch to select the ap
15

Apr

2017

The principle of photoelectric sensor measuring speed

"When the projection type photoelectric speed sensor measures the speed of an object, the measuring disc will rotate with the measured object, and the light will continue to pass t
06

Apr

2017

Measure principle of photoelectric tachometer

1. Introduction to air preheater speed measurement The air preheater is an important large-scale operating equipment in the power plant. The failure of the rotary air preheate
31

Mar

2017

The principle and use of tachometer

principle The tachometer will read the received digital pulse signal (sent by the sensor) directly into the counting port of the cpu after processing, calculate the speed and th
22

Mar

2017

The working principle of digital tachometer

The digital tachometer will read the received digital pulse signal (sent by the sensor) directly into the counting port of the cpu after processing, calculate the speed and the pos
15

Mar

2017

Application of digital tachometer

Digital tachometer, also called digital tachometer, is used to measure the rotation speed of objects. According to the measurement method, it can be divided into contact type and n
06

Mar

2017

laboratory and industrial pH electrodes

In terms of use, laboratory pH electrodes are used for short-term intermittent testing under better environmental conditions, while industrial pH electrodes are used for long-term
28

Feb

2017

Application of industrial pH meter

The use of a pH meter can better control the chemical reaction and achieve the purpose of improving productivity and product quality as well as safe production. The pH measurement
22

Feb

2017

How to detect the quality of the pH electrode

Record 186mV of the test data in step (1), clean the electrode and insert it into pH9.18 buffer solution, and read after stabilization, E2'=111mV (absolute value), ΔE'=E1'+E2'=186+
15

Feb

2017

How to clean the pH electrode

After the bulb and liquid junction are contaminated, clean them with the following solvents, and then use deionized water to remove the solvents, and then immerse the electrodes in
06

Feb

2017

what is purpose of pH buffer solution

⑴ Calibrate and calibrate the pH meter before pH measurement. (2) To verify the accuracy of the pH meter, for example, after calibrating the pH meter with pH 6.86 and pH 4.00, i
31

Jan

2017

How to store & use pH buffer solution correctly

pH12.46, etc., should be packed in a polyethylene bottle) with a tight cap. It should be stored at a low temperature (5-10°C) in the refrigerator. Generally, it can be used for abo
28

Jan

2017

How to prepare pH buffer solution

For general pH measurement, a set of pH buffer reagents (250ml can be prepared) can be used. When preparing the solution, deionized water should be used and pre-boiled for 15-30 mi
20

Jan

2017

what is pH scale

pH measurement is a relative measurement. It only indicates the difference in pH between a standard solution and an unknown solution. In actual measurement, a standard buffer solut

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