7014 VISCOUS LIQUIDS LEVEL SENSOR
The 7014 high-viscosity liquid level sensor has been designed to provide reliable and accurate level measurement of fluids that, because of their composition, can prove challenging to measure by conventional sensors.
Electrically conductive, highly viscous or corrosive liquids and liquids with suspended solids such as industrial adhesives, latex, plastics, paper pulp, sewage, detergents, paint, sludges and slurries, bio-solids, gummy fluids and caustic and acidic mediums are some examples of the types of fluids that can be used with the 7014 sensor.
Developed by refining the established and proven capacitive level measurement technology used by Gill, the sensors wetted parts have an FEP coating that provides a non-stick measurement probe without any holes, moving parts or hidden voids, eliminating build-up which can lead to inaccurate measurements or leave sensors remaining permanently tripped.
Additionally, being a conductive sensor means that it can be used in tanks of all material types and is unaffected by any film that builds up on the walls of the tank which can be problematic for capacitance based devices.
Unreliable or inaccurate measurements caused by a build-up of residue or suspended solids in the liquid can lead to a loss of product due to unintended overflow or tank draining, even more critical when dealing with environmentally harmful materials, where it is crucial that tanks do not overflow.
The sensor probe has been engineered so that it does not require any additional mechanical support in the tank, whilst being robust enough to withstand any strong agitation in the tank that may be present. The single, smooth probe also facilitates the serviceability of the sensor should any cleaning be required, simply with alcohol wipes.
Available with three output options and rated to IP69k, the 7014 sensor can also be configured to compensate for irregular shaped tanks providing a true volumetric output, essential for process inventory measurements.
FEATURES AND BENEFITS
- Suitable for all high viscosity conductive fluids.
- No holes or moving parts affected by suspended solids.
- FEP coating unaffected by corrosive and aggressive media.
- Wireless solution available.
Viscous Liquid Level Sensor Application
TECHNICAL
| Output : | Voltage Maximum 0.25-10.0V DC (configurable). |
| Current 4-20mA. | |
| Resistive 10-180 or 240-33 Ohms. | |
| Accuracy : | +/-10% FSD @20°C |
| Resolution : | 12 bit (4096 points over measurement range). |
| Supply Voltage : | +6 to +32V DC |
| Supply Current : | <40mA |
| Operating Temperature : | -40°C to +85°C (without cable). |
| Ingress Protection : | IP66/IP68/IP69k to EN60529 |
| Mounting : | 1.25″ BSP Threaded |
| Probe Length : | Standard 250, 350, 450, 600, 800, 1000mm. |
| Custom 50 to 2000mm (MOQ applies). |
Level measurement for highly viscous or corrosive liquids and liquids with suspended solids.
- Suitable for all high viscosity conductive fluids.
- Ideal for thick, slurried or corrosive liquids.
- No holes or moving parts to be affected by suspended solids.
- Non-stick coating allows use with sticky and viscoelastic liquids.
- FEP coating unaffected by corrosive and aggressive media.
SPECIFICATION
| Primary Output Accuracy | +/-10% FSD @ 20°C |
| Thermal Drift | <10% FSD over full temperature range |
ELECTRICAL
| Supply voltage | +6 to +32V DC |
| Over Voltage Protection | 50V DC |
| Supply Current | <40mA |
| Reverse Polarity Protection | -32V DC |
| Resolution | 12 bit (4096 points over measurement range) |
| Output Update Rate | 100Hz (Resistive) 10Hz (0-10V & 4-20mA) |
| Configuration Interface | Accessible via local micro USB port |
| Primary (Volumetric) Output | Configurable through user software using tank profiling or file upload |
| Secondary (Switch) Output | Open collector output 50V / 0.5A max switch to ground (V-) |
| Secondary Output Hysteresis | Configurable through user software |
RESISTIVE OUTPUT
| Primary Outputs | 10-180Ω or 240-33Ω selectable through user software |
| Standard Range | Datum A to Datum B (see Dimensions) |
| Primary Output Maximum Range | 10-1000Ω or 1000-10Ω Configurable through user software |
ENVIRONMENTAL
| Ingress Protection | IP66 / IP68 / IP69k to EN60529 |
| Operating Temperature | -40°C to +85°C (without cable) |
| Humidity | 93% RH at 40°C EN60945 |
| EMC | EN60945 (Marine) |
| EN61000-6-3 (Light Industrial) | |
| EN61000-6-2 (Heavy Industrial) | |
| EN61326-2-1 (Measurement Control) | |
| Corrosion Resistance | Marine grade stainless steel 316 construction |
| Differential Pressure | 10 Bar |
| Absolute Pressure | 5 Bar |
| Compatible Media | All conductive liquids |
| Venting | Use in vented tanks only |
MECHANICAL
| Wetted Materials | Stainless steel 316, FEP, EPDM |
| Probe Length | Range 1: 250, 350 or 450 mm |
| Range 2: 600, 800 or 1000 mm | |
| Range 3: Custom 50 to 2000mm (MOQ applies) | |
| Tank Seal Options | EPDM O-ring or Klingersil panel gasket |
| Cable | Marine standard screened cable (temperature rating -40°C to +75°C) |
| Cable Pull | 3 axis, 50N |
VOLTAGE OUPUT
| Primary Output Standard Range | 0.25 – 4.75V DC* |
| Primary Output Maximum Range | 0.25 – 10V DC* Configurable through user software |
CURRENT OUPUT
| Primary Output Standard Range | 4-20mA Range is Datum A to Datum B (see Dimensions) |
| Primary Output Maximum Range | 4-20mA Configurable through user software |
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