TK6800 Electric Differential Pressure Liquid Level Transmitter
Product Overview
Section titled “Product Overview”The TK6800 Electric Differential Pressure Liquid Level Transmitter uses differential pressure measurement and a purpose-designed structure for continuous liquid level measurement. It has no moving mechanical parts and is suitable for different temperature, pressure and media conditions, including corrosive, high-temperature, high-pressure and impact services.
Applications
Section titled “Applications”- Electric power, petroleum, chemical, metallurgy and environmental protection equipment.
- Building, food and industrial storage tanks.
- Level measurement for hot, high-pressure or corrosive media.
- Applications where electric float, RF admittance or radar level measurement is being considered.
Product Features
Section titled “Product Features”- Differential pressure measurement: Continuous level monitoring using liquid level differential pressure.
- No moving mechanical parts: Reduces mechanical damage and maintenance requirements.
- Process capability: Suitable for high-temperature, high-pressure, corrosive and impact conditions.
- Wide density range: 100<rho<3000 kg/m³.
- Selectable output and indication: 4-20 mA/HART output with mmH2O, kPa or % indication.
- Flexible installation: Top, side, side-bottom or bubble level configurations are available.
Main Technical Parameters
Section titled “Main Technical Parameters”| Item | Specification |
|---|---|
| Measurement range | 300-20000 mm, larger ranges available by agreement |
| Level accuracy | ±0.1% F.S. |
| Range ratio | 10:1 |
| Repeatability | ≤±0.05% F.S. |
| Power supply | 16-36 VDC |
| Output | 4-20 mA DC with HART protocol |
| Display units | mmH2O, kPa or % |
| Density range | 100<rho<3000 kg/m³ |
| Working pressure | 2.5-16 MPa |
| Media temperature | -60 to 280 °C |
| Ambient temperature | -40 to 70 °C |
| Protection | IP67 (NEMA 4X) |
| Hazardous-area options | Ex ia IIC T4/T6 intrinsic safety; Ex d IIC T4/T6 explosion suppression |
| Electrical interface | 1/2-14 NPT female thread or M20 x 1.5 female thread |
| Terminal box | Aluminum alloy |
Model and Selection Parameters
Section titled “Model and Selection Parameters”| Selection item | Code | Configuration |
|---|---|---|
| Pressure range | 1 | Inserted type, 200-300 mmH2O |
| Pressure range | 2 | Immersion type, 1000-20000 mmH2O |
| Pressure range | 3 | Bubble level type; selection material confirmed separately |
| Transmitter type | A | Basic type, -40 to 80 °C |
| Transmitter type | B | High-temperature type, -40 to 280 °C |
| Transmitter type | C | Corrosion-resistant type, -40 to 120 °C |
| Installation | N / H / C / D | Top / side external / side-bottom external / bubble level |
| Supporting air guide pipe | X1 / X2 | Without / with supporting air guide pipe |
| Output | H | 4-20 mA/HART |
| Wetted material | A / B / C | 316L / 316L + Teflon / 316L + PTFE |
| Installation flange | A / B / C | DN80 / DN65 / customer-specified |
| Working pressure | P1 / P2 | ≤6.3 MPa / ≤16 MPa |
| Electrical interface | A / B | M20 x 1.5 / 1/2 NPT |
| Display method | A / B / C | mmH2O / kPa / % |
| Hazardous-area class | A / B | Ex ia IIC T4/T6 / Ex d IIC T4/T6 |
Installation
Section titled “Installation”- Top installation.
- Side external installation.
- Side-bottom external installation.
- Bubble level installation.
- Supporting air guide pipe and installation flange.
Information Required for Quotation
Section titled “Information Required for Quotation”- Range, level height, density and media temperature.
- Basic, high-temperature or corrosion-resistant type.
- Top, side, side-bottom or bubble level structure.
- Wetted material, air guide pipe, installation flange and working pressure.
- Output, display unit, electrical interface and hazardous-area class.
Related Products
Section titled “Related Products”- Air guide pipes and supporting connectors.
- DN65, DN80 or customer-specified installation flanges.
- Liquid crystal display, HART communication accessories and electrical interfaces.
Product Downloads
Section titled “Product Downloads”View this product PDF catalogue online, or return to the Pressure Transmitter downloads page for related documents.
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