Benefits
The SHLT02 series is designed around the concept that the pressure exerted by a liquid column of known density is directly proportional to its height. By using a high-sensitivity diffusive silicon sensor exposed to the liquid’s hydrostatic pressure, the transmitter converts this into a level reading—accounting for the specific gravity of the medium when configured. Its compact probe or submersible design supports applications in open or sealed tanks, sumps, monitoring wells or vessels of oils, chemicals or water.
Uptime and reliability are prioritised through features like fine zero and temperature shift compensation, non-linearity correction, and robust signal output stability. The standard model offers accuracies of 0.5 % or better (with improved accuracy options down to 0.25 %) and stability of ≤ 0.2 % FS per year under normal conditions. The instrument supports measuring ranges from 0 – 0.5 m up to 0 – 200 m water column equivalent (ρ=1 g/cm³), making it versatile across shallow sumps to tall liquid columns.
Construction options include stainless steel or PTFE-lined probes for corrosive media, and rugged cable sheath choices (PE or PTFE) for long runs or harsh external conditions. With sensor ratings of IP68 and electronic transmitter housings up to IP67, the SHLT02 is built for deployment in outdoor or hostile environments. Two-wire 4–20 mA is standard; variants offer digital protocols such as HART or RS-485/Modbus for integration into SCADA or plant automation systems.
Applied effectively in fuel-oil tanks, water level monitoring, process vessels, and hazardous-area installations, the SHLT02 offers a cost-effective, robust solution when reliable hydrostatic level detection is key.
- Measurement range: 0-0.5 m up to 0-200 m (water column equivalent, ρ=1 g/cm³)
- Accuracy: standard 0.5 % FS; optional improved 0.25 % FS
- Long-term stability: ≤ 0.2 % FS/year
- Output: 4–20 mA two-wire standard; optional HART or RS-485/Modbus
- Sensor protection: IP68 probe; transmitter housing IP65/IP67
- Probe and sheath materials: Stainless steel 304 (STD); optional 316L, PTFE-lined; cable sheath: PE or PTFE
- Power supply: 12-45 V DC (normal 24 V DC)
- Response time: typically ≈ 0.25 s
- Installation: Threaded (M20×1.5 or ½″ NPT) or flange; cable lengths up to 200 m
- Explosion approval: Intrinsically safe Ex ia II C T6 or explosion-proof Ex d II C T6 variants available
- Temperature compensation: Automated zero and span shift correction for stability across –20 °C to +85 °C working temp (medium must remain liquids)
SILVER INSTRUMENTS SHLT02 Diffusive Silicon Level Transmitter – Data Sheet
