Principle
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.
Features
- 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
Mechanical Specifications
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
RESOURCE MONITOR & INDICATOR
Mounting
- Single Channel: Wall mounting
- Multi Channel: Panel mounting
Electrical Specifications
Mains
- 85 to 265 V AC, 50 / 60 Hz
Power Consumption
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
Application Specifications
- Freshwater
- Distilled water
- Fuel oil
- Lubricating oil
- HSD
- Bulk measurement in shipping vessels
Certification
- CE Marking
- ROHS compliance