The TK208 and TK316 Series Diffusion Silicon Transmitter uses an isolated diffusion silicon sensor for gauge, absolute and negative pressure measurement in industrial applications. The transmitter supports direct installation. 316L stainless steel, tantalum or ceramic diaphragms, sealing materials and process interfaces can be selected according to the media and installation conditions.
- Pressure measurement for corrosive liquids, gases and steam.
- Gauge, absolute and negative pressure measurement.
- Industrial installations requiring direct mounting and two-wire analog output.
- Equipment requiring local liquid crystal indication or hazardous-area certification.
- Isolated sensor: The diffusion silicon sensor is separated from the process medium by an isolation diaphragm.
- Direct installation: The structure is suitable for direct connection to the process interface.
- Wide range: Measurement range from -100 kPa to 60 MPa, with a range ratio of at least 3:1.
- Stable output: 24 VDC supply and 4-20 mA two-wire output.
- Flexible configuration: Optional liquid crystal display, damping device, accuracy class and hazardous-area certification.
- Selectable materials: 316L, tantalum or ceramic diaphragms and different process joint materials.
| Item |
Specification |
| Models |
TK208 and TK316 |
| Power supply |
24 VDC |
| Output |
4-20 mA two-wire |
| Zero adjustment |
±50% |
| Range ratio |
At least 3:1 |
| Measurement range |
-100 kPa to 60 MPa |
| Load characteristic |
Constant-current output within 0-600 ohm at 24 VDC supply |
| Indication |
Optional 5-digit LCD |
| Overpressure limit |
2 times the upper range limit |
| Process temperature |
-20 to 60 °C |
| Accuracy class |
±0.2% or ±0.5% |
| Stability |
±0.2% F.S. |
| Weight |
Approximately 1 kg |
| Hazardous-area options |
Ex d IIC T4 explosion suppression; Ex ia IIC T6 intrinsic safety |
| Selection item |
Code |
Configuration |
| Process diaphragm and material |
1 |
316L diaphragm, 1Cr18Ni9Ti process joint |
| Process diaphragm and material |
2 |
Tantalum diaphragm, 316L process joint |
| Process diaphragm and material |
9 |
Ceramic diaphragm, 316L process joint |
| Process connection standard |
R |
G1/2A external thread, 8 mm inner hole |
| Process connection standard |
B |
M20 x 1.5 external thread, 8 mm inner hole |
| Seal material |
1F / 3F / 4F |
Fluorine rubber / fluorosilicone rubber / EPDM |
| Housing display |
5 / 9 / N |
Aluminum housing / digital display / no display |
| Accuracy class |
3 / 6 |
0.20% / 0.50% |
| Pressure type |
G1G / G2G / Y |
Gauge / absolute / negative pressure |
| Pump pressure option |
A |
Damping device |
- Direct process-thread installation.
- Field junction-box installation.
- Optional liquid crystal display and damping device.
- Installation frame and cable sealing accessories according to the process interface.
- TK208 or TK316 model.
- Gauge, absolute or negative pressure type.
- Range, accuracy class and overpressure requirement.
- Media, temperature, corrosiveness and sealing material.
- Process interface and electrical interface.
- Liquid crystal display, damping device or hazardous-area certification requirement.
- Installation frames and cable seal cartridges.
- Liquid crystal display and damping device.
- Process connection parts, seals and hazardous-area electrical accessories.
