Scientific Instruments LTD Tank Gauging System
The SI-7000 LTD is the most dependable solution for level, temperature, and density profiling in LNG & LPG Storage Tanks. The SI-7000, a third generation LTD from Scientific Instruments was designed to meet today’s demanding safety regulations. Now on smaller footprint, built-in intuitive keypad display, optimized performance, reliability and accuracy. The SI-7000 Probe has dedicated sensors for level, temperature and lng density measurements, all embedded into a robust stainless steel housing. All components exposed to Zone 0 & 1 are constructed of stainless steel, offering superior corrosion resistance. The SI-7000 now features an entirely re-designed jam-proof vertical-gear-drive mechanism (VGD), combined with a robust stainless steel chain resulting in trouble-free most reliable profiling performance in LNG & LPG storage tanks.
Model SI-7000 LTD Tank Gauging System features:
- Level, temperature, and density of LNG sensing in a single probe
- All-stainless construction for superior corrosion resistance in extreme environmental conditions
- Robust chain drive
- Stilling well not required
- Symmetrically balanced for flange mounting and support
- Accurate liquid level measurement with discrete dual sensor level detection array and smart feedback
- Advanced, self-calibrating electronics with embedded high resolution, full color, touch-screen HMI
- Safe and simple access to internal components for ease of maintenance
Description
Additional information
| Weight | 180 lbs |
|---|---|
| Dimensions | 125 × 76 × 37 in |
| Level Range | 0-56 m |
| Level Resolution | <1 mm |
| Level Accuracy | ±2 mm |
| Temperature Range | -200°C to +50°C |
| Temperature Resolution | 0.01°C |
| Temperature Accuracy | ±0.1°C |
| Power Supply | 85-264 VAC (±10%) |
| Maximum OP Pressure | 400 mbar g |
| Protection Class | Designed to meet IP65 |
| Mounting Flange | 6” ANSI 150#RF |
| Drive Cable | Chain drive: SS304 |
| Housing Material | 316 Stainless Steel |
| Safety Certifications | IECEx & ATEX |
| Seismic Compliant | Designed to comply to 3.0g |
| Stilling Well | With or Without (Consult Factory) |
| Isolation Valves | External isolation (pinch) valve |
| Communications | (2) Standard RS-485 – Modbus Optional; 20mA, HART, Ethernet |
| Sensor Connections | Gold-plated Slip Rings |
| Dimensions | 125 x 76 x 37 cm |
| Weight | 180 kg |
| Sensor Isolation | I.S. Barriers |
| Profile Points | 250+ |




















