SZC-04B tachometer intelligent design is the use of intelligent digital meters, with high precision, stable performance, strong anti-interference, high reliability and simple operation. SZC-04B intelligent tachometer users according to different conditions in the field through the keyboard, the software settings instrument teeth, coefficient, alarm values ??and other parameters. SZC-04B intelligent tachometer can achieve up to three alarm switch contact output, and can lock the alarm contact. SZC-04B intelligent tachometer suitable for steam turbine power plants, industrial steam turbines, pumps, fan speed measurement [Details] a, SZC-04B smart tachometer Overview SZC-04 Series Intelligent tachometer is the use of intelligent design of digital instrumentation with high precision, stable performance, strong anti-interference, high reliability, simple operation. Users according to different conditions, in the field via the keyboard, a software setting instrument teeth, coefficients, alarm and other parameters. Up to three alarm switch can be achieved contact output, and can lock the alarm contact. It is suitable for steam turbine power plants, industrial steam turbines, pumps, fan speed measurement requirements. Before using the instrument, the user should be familiar with professionals in the detailed description of this instrument, the use of the keyboard settings. SZC-04B smart tachometer provides speed signals corresponding to 4 ~ 20mA output for remote DCS or PLC systems, remote display. Two, SZC-04B smart tachometer main function 1. Display can simultaneously measure the speed or cycle; 2. Measuring the peak (maximum) memory function; 3. There are two kinds of frequency measurement and test work week option; 4. Number of teeth, the coefficient set to any of 1 to 200; 5. Can be set and modify the alarm value; 6. There are 4 ~ 20mA analog output and the corresponding range; 7. To maintain the value of setting parameters and other memory during a power outage. Three, SZC-04B smart tachometer main technical parameters. Measuring range: 20 to 15000 rev / min 2. Accuracy: ± 1 word a turn; 3. Input signal: 50mV ~ 30V pulse or sine signal; 4. Display: 0.8 inches 5 red LED digital display; 5. Setting the number of teeth: 1 to 200 and is arbitrarily set; 6. Coefficient setting: arbitrarily set within 1 to 200.; 4. Alarm output: relay switch output, contact capacity AC250V / 1A, DC28V / 2A; 5. Current output: DC4 ~ 20mA Accuracy ± 1.0% (25 ℃ when); maximum load 500Ω; 6. Power supply: AC220V ± 10% 50Hz ± 5%; 7. Dimensions: Panel Mount Embedded: 160 * 80 * 160mm width Wall thickness 290 × 190 × height 92mm; 8. Environment: Temperature 0 ~ 50 ℃; Storage temperature -10 ~ 60 ℃; relative humidity of 20 to 90% (non-condensing);