Description
Product introduction:
Model: SZM-2, 3
Name: Magnetoelectric tachometer
Manufacturer: SHANGHAI AUTOMATION INSTRUMENT TACHOMETER AND INSTRUMENT MOTOR CO., LTD.
Application: SZM-2, 3 magnetoelectric tachometer, made up of speed sensor and indicator, long distance for measuring engine speed (transmission line sensors and indicators are not directional, the maximum length of 50M), can be used to measure various types of vehicles, ships, printing, textile, building machinery, and the speed of various types of power equipment. The instruments need to be equipped with SZMB-7 or SZMB-8 type two kinds of sensors. A sensor can simultaneously drive the first two or three tables for two or three speed instructions.
Conditions of Use: tachometer ambient temperature -10 ~ 60 ℃, relative humidity ≤ 85%.
Basic error: tachometer 20 ± 2 ℃ in the case, the basic error of measurement of the upper limit of ± 1.5%.
Humidity: 10 ℃ when the temperature of each change, the indications of additional error of not more than the absolute value of the basic error limit.
|
Speed r/min |
Ratio |
|
0～1000 |
1：1 |
|
0～1500 |
1：1 |
|
0～3000 |
1：1 or 1：2 |
● transmission line resistance is less than 1.2Ω, the equivalent of using RVV2 × 16 × 0.15 size of wire transmission distance of 10m. If not used to increase the size of the wires will increase accordingly 10m fundamental error of 0.2%.
● In the following cases need to fine-tune the electrical adjustment of the negative indicators:
Transmission line resistance is too large can cause errors become larger.
Sensors and indicators need to swap one of them when re-matching.
Special needs, such as a sensor to drive two hours indicator.
● in the regulation of micro-electrical lock nut should be loose, still speaking after adjustment locking nut.
