Model No ::
BT-RFLT-XXXX
Brotek RF admittance Capacitance level transmitter is improved accordingly on the basis of the traditional radio frequency admittance meter. It has fast measurement response, good anti-interference, high resolution (0.1pF), stable display value and easy operation. Can provide 4-20mA output, up to 4 relay control output.
How Capacitance Level transmitter Works
This product uses a high-frequency LC oscillator circuit to measure the capacitance between the probe and the metal tank wall (or auxiliary electrode). The measured capacitance value changes with the height of the material. The material or the PTFE insulation layer of the probe is the dielectric of the capacitance. When the dielectric constant is stable, there is a linear relationship between the measured capacitance value and the height. At this time, the measured capacitance value can be used to calculate the level height after proportional and offset. This product is improved on the basis of traditional radio frequency admittance meters, with stable indication and easy operation.
Specification ::
| input signal | Capacitance signal (2000~5000pF), resolution 2.5pF (500~2000pF), resolution 1pF (0~500pF), resolution 0.1pF |
| measurement accuracy: | 0.5% |
| Display range | -999~9999 |
| Environment temperature | -30～70℃ |
| Relative humidity | <= 85% |
| Power supply | 24V DC (18～36V) or 220VAC |
| display | Two-line 4-digit digital tube, 10-segment beam, 5 LED alarm indicators |
| output signal | Passive isolation 4-20mA current (external power supply) Active isolation 4-20mA current (load capacity 400Ω) Isolated 4-20mA current (active or passive) + 2 SPDT 3A relays 4 relays: 2 SPDT 3A + 2 SPST 5A |
For more detail please check product catalogue or contact to company.
Features ::
- High resolution such as (0.1pF)
- Large measuring range:0~5500pF
- High frequency measurement circuit, strong resistance to hanging materials
- The software automatically compensates for temperature drift of circuit parameters
- Strong immunity, electrical isolation between the measuring circuit and the power supply
- Capacitance display and fault diagnosis function
- A variety of probe structures can measure conductive and non-conductive media, normal temperature and high temperature media.
- Multiple calibration methods to facilitate on-site calibration and maintenance
- The probe circuit has electrostatic protection function, suitable for occasions with electrostatic dust particles.
Applications ::
Oil-water interface measurement (customized)
Level measurement of low dielectric constant medium such as powder
Another Multi-point level alarm and control
Common conductive or non-conductive medium level measurement.
