Introducing The Scientific Instruments Model SI-7000 LTD

We proudly introduce – after 40 years of delivering the world’s most trusted LNG tank-top LTD systems – the completely re-imagined, redesigned, and most advanced solution for LNG tank profiling: The Scientific Instruments Model SI-7000 LTD.

Some of the key features of the Model SI-7000 LTD Tank Gauging System include:

  • Level, temperature, and density 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

Visit the Model SI-7000 LTD Tank Gauging System to learn more.

Model SI-7000 LTD Tank Gauging System Preliminary Specifications
Measurement DATA
Range 0-56 m
Resolution <1 mm
Accuracy ±2 mm
Range -200°C to +50°C
Resolution 0.01°C
Accuracy ±0.1°C
Range 400 to 1000 kg/m3
Resolution 0.01 kg/m3
Accuracy ±0.5 kg/m3
Power Supply 85-264 VAC (±10%)
47-63 Hz, 150 Watts
Max. 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+

For product assistance, please contact Scientific Instruments.