Zhong he SZC-O4F Intelligent Tachometer
Precisely measuring reverse rotation and controlling alarms for industrial applications
Product Overview
The SZC-04 series intelligent tachometer is a digital display instrument featuring intelligent design with high accuracy, stable performance, strong anti-interference capability, high reliability, and simple operation. Users can configure parameters such as tooth count, transmission coefficient, and alarm values on-site.
Available Models
- SZC-04
- SZC-04B
- SZC-04BG
- SZC-04F
- SZC-04FG
Suitable for measuring the speed of steam turbines, water pumps, and fans. SZC-04F and SZC-04FG models can monitor reverse speed (requires connection to two sensor signals).
The instrument is pre-configured according to order requirements and can be used directly. Any parameter modifications should be performed by professionals following the instruction manual.
Main Functions
- Measures and displays rotational speed or frequency
- Measuring peak value (maximum value) memory function
- Selectable frequency measurement and frequency measurement modes
- Tooth count and transmission coefficient settable from 1~200
- Alarm switch output with configurable alarm values
- 4~20mA analog output corresponding to measurement range
- Retains set parameters during power outages
- Detects forward or reverse rotation of transmitter disc
- 12VDC power supply for sensors (SZC-04F/SZC-04FG models)
Technical Specifications
| Measuring Range |
1~15000 rpm |
| Measuring Accuracy |
1 digit ± 1 rpm |
| Input Signal (SZC-04/SZC-04B/SZC-04BG) |
50mV~30V pulse or sine wave signal |
| Input Signal (SZC-04F/SZC-04FG) |
High level: 5V~30V, Low level: ≤0.7V pulse signal |
| Display Method |
5-digit LED digital display |
| Alarm Output |
Relay switch output, contact capacity AC250V/2A DC28V/2A |
| Current Output |
DC 4~20mA, accuracy ±1.0% (at 25℃), maximum load 500Ω |
Power Supply Options
- (198~242) VAC, 50Hz±5% (linear power supply)
- (20~26) VDC
- (85~265) VAC (switching power supply)
Wall-mounted meters have two types of power supplies: linear power supply and switching power supply.
Dimensions
| SZC-04 |
160*80*85mm (Opening: 152*76mm) |
| SZC-04B/SZC-04F |
160*80*225mm (Opening: 152*76mm) |
| SZC-04BG/SZC-04FG |
190*290*92mm (Installation: 170*272mm) |
Operating Environment
- Temperature: 0~50℃
- Storage Temperature: -10~60℃
- Relative Humidity: 20~90% (non-condensing)
- Environment free from corrosive substances and strong magnetic fields