Stellar – Pressure Based Level Transmitter
Sapcon’s STELLAR is a pressure based level transmitter. It is a complete resource measurement solution for inventory estimation. The measurement is produced directly in units of volume and/or mass by deploying level measurement principles. It is ideal for applications dealing with freshwater, distilled waster, fuel oil, lubricating oil, HSD. It is also useful for bulk measurement in shipping vessels.
- Differential Pressure sensor by Druck GE
- Depending on fluid type and approval requirement, proper DP sensor selection is needed.
- Isolated 4-20mA output can give 1000 ohm output drive for 24 volt DC external power supply loop or 700 ohm from internal supply
Salient Features of Stellar Pressure Based Level Transmitter
- Password Protection: Security against tampering or unintended editing
- Password retrieval if forgotten or lost
- Compatible With IPMS (Integrated Platform Management System)
- Mass, Volume & Percentage Display: Strap-chart editing
- Immune to turbulence: Rolling Pitching neutralizing algorithm
- USB RS485 Interface: Easy calibration, easy configuration
Resource Monitor & Indicator
A RISC core microcontroller of the tank gauging hardware, utilizes the pressure to level information sent by the DPL sensor, and converts it faithfully to Volume and Mass depending on strap-chart and density information provided in its configuration. 24 Bit ADC and 32 bit arithmetic along with spline curve based strap-chart evaluation algorithm ensures the true indication of volume and mass of the material inside the tank.
- Low Power Consumption: Less heat, long life; Maximum 2.4 watt
- Wide Range Power Supply: 90 to 265 V AC; supports all onboard supplies
- High Resolution Output: 7 digits; down to 1 litre volume resolution
- Mass, Volume & Percentage Display: Strap-chart editing
- Galvanically Isolated 4-20mA 1000 Ohm series load @ 24 V DC loop supply
- Thermal drift compensated stable operating characteristic
Housing
- Cast Aluminium, weatherproof for local indication types and breather units
- SS or MS (Powder-coated) panel for multiple panel and distribution box
Cable Entry
- Single / Double compression gland
Mounting
- Screw: 1″ to 1 1/2″ BSP / NPT (M)
- Flanged: As per order
- Material: SS / MS (Plated) to hold DP sensor
Ambient Temperature
- 0°C to 70°C
RESOURCE MONITOR & INDICATOR
Mounting
- Single Channel: Wall mounting
- Multi Channel: Panel mounting
Mains
- 85 to 265 V AC, 50 / 60 Hz
Power Consumption
- Less than 2.7 VA
Output
- 4 to 20mA, Max load @ 24Volts: 1000 Ohm proportional to level, mass or volume
Calibration & Strap Chart Entry
- Onboard 8 digit display and 6 key keyboard. Also through RS485 interface
Information Display
- Level, mass & volume display selectable
Alarm Outputs
- Two onboard relays selectable for level, mass or volume (independent combination)
Accessories
- PC interface for strap chart entry and tank technical database management. This will eliminate the tedious strapchart entry in case of unit transfer from one tank to the other.
RESOURCE MONITOR & INDICATOR
Data Entry
- Single Channel: 6 key keypad & PC interface
- Multi Channel: 12 key keypad & PC interface
Configuration
- Strap-Chart (Tank Table),
- Density
- Two alarm relays for Level / Mass / Volume
- 4-20 mA for Level / Mass / Volume
- Password Change
- Password Lost and Retrieve
- 2 point calibration for tank & sensor
Power Supply
- 90 to 265 V AC @ 50/60Hz (2.4 W max), 24 V DC optional
Diagnostic Functions
- Sensor Error, Under-range, Over-range, Strap-Chart Entry Error, Calibration Error
Alarm (2 Relays)
- Settable in Level / Mass / Volume independently
- Single point and 2 point alarms per relay
- Fail-safe selection Cover & Uncover delay settings
Alarm Outputs
- Two onboard relays selectable for level, mass or volume (independent combination)
Accuracy & Conversion
- Better than 0.5% of full scale smoother level to volume interpolation
- Freshwater
- Distilled water
- Fuel oil
- Lubricating oil
- HSD
- Bulk measurement in shipping vessels
- CE Marking
- ROHS compliance
