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KING-GAGE

King Gage Level Controls and Air Filters

Liquid Level Tank Gauging and Compressed Air Filtration

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KING-GAGE® TeleSensor detects level by sensing hydrostatic pressure created by liquid depth. Acting on the force balance principle, a sensitive diaphragm is exposed to the liquid contents of the tank. Compressed air within the sensor creates a pneumatic pressure that balances the force of the liquid acting against the diaphragm. This diaphragm unit is generally paired with the 868 D/P Sensor Control with integral transmitter. This converts the pneumatic isolation pressure to a proportional 4-20 mAdc signal suitable for process control or remote level indication.
The basic configuration is intended for pipe flange connection mounting (2", 3" or 4" class 150 ANSI) to any typical outlet near the bottom of the tank. TeleSensor units are virtually free from long term drift, hysteresis, and temperature sensitivity unlike strain measurements (including load cells) since mechanical deflection of the diaphragm is not directly measured. Additionally, pressure based measurement is unaffected by liquid foam or vapor layers within the tank.
KING-GAGE TeleSensor units combine accuracy, rugged durability, reduced maintenance, and long term stability for liquid level tank gauging. A compressed air/gas supply is required for operation of the sensor. Entirely pneumatic versions are available for use in hazardous area service eliminating need for additional intrinsic safety provisions.
King-Gage TeleSensor Liquid Level Sensor

King-Gage Tele Sensor

 

 

External Mounting at Tank


Unaffected by Foam or Vapor


Electronic (4-20 mA) or Pneumatic Output

Purge Control
When purged with compressed air, liquid within a downpipe extending into the tank is displaced by air pressure equal to the hydrostatic force created by liquid depth. If carefully regulated at a low rate of flow, air pressure will constantly maintain equilibrium against the force of the liquid. Output is proportional to liquid depth and can be transmitted as an electronic 4-20 mA signal or pneumatically as a direct 1:1 pressure signal.
788 D/P Purge Control is a differential pressure regulator and air flow control. It generates a constant flow of compressed air to purge a downpipe. Its integral differential pressure transmitter provides 4-20 mAdc output proportional to liquid level.
APPLICATION NOTE: Available in all-pneumatic configurations for hazardous area service.
King-Gage Purge Control Liquid Level Controler
Purge Control


Continuous Level Measurement
 

Simple Proven Sensing Technique
 

Suitable for Corrosive or Aggressive Liquids

LiquiSeal Purge Control
When purged with compressed air, liquid within the downpipe is displaced by air pressure equal to the hydrostatic force of liquid in the tank. If carefully regulated at a low rate of flow, air pressure will constantly maintain equilibrium against the force of the liquid. Output is proportional to liquid depth and can be transmitted as an electronic 4-20 mA signal or pneumatically as a direct 1:1 pressure signal.
LiquiSeal D/P purge control is a fully integrated air purge regulator and level transmitter. Operation is based on the control regulating a continuous 1 cfh (cubic foot per hour) flow of compressed air into the tank downpipe. An internal differential pressure sensor element converts resulting pressure into a 4-20 mAdc two wire signal.
APPLICATION NOTE: Available in all-pneumatic configurations for hazardous area service.
King-Gage Liqui-Seal Level Purge Control

LiquiSeal
 

Continuous Level Measurement

Simple Proven Sensing Technique
 

Suitable for Corrosive or Aggressive Liquids

KING-GAGE® LevelWAV Guided Wave Radar Level Transmitters provides continuous measurement of liquids and solids. Measurement is independent of dielectric constant, temperature, pressure and density variations. It is suitable to a broad range of level measurement and control applications including process conditions exhibiting visible vapors, foam, surface agitation, high temperature and/or pressure.
Based on time domain reflectometry (TDR) this guided wave radar propagates its pulses of microwave energy down a waveguide (probe) extending into the tank contents. KING-GAGE LevelWAV works well in confined space and in tanks having internal structures while providing measured level accuracy to within ± 0.6 inch (± 15 mm).
Our guided radar can be used to measure the distance, level, volume and ullage of liquids, pastes, slurries and powder products. Setup is easier, simpler and more repeatable than "through air" non-contacting radar as very little energy is lost down the probe which permits measurement of very low dielectric media.
Suggested Applications:
Food/beverage
Chemical
Water/wastewater
Marine
Microwave pulses are guided down the probe and reflected back by contact with the surface of the liquid. In time domain reflectometry (TDR), the time duration of the pulse and reflected response corresponds to the distance traveled. KING-GAGE LevelWAV measures level from the tank top, enabling inventory monitoring and process measurements such as level or ullage. Unlike other probe technologies, LevelWAV is not affected by foaming of liquids or where the material tends to build up on surfaces.
King-Gage LevelWav Guided Radar Wave Level Control
KING-GAGE® LevelWAV


Time Domain Reflectometry (TDR) Technology


Continuously Measure Level, Volume or Ullage


Process Temperatures up to 392°F (200°C)

KING-GAGE® ES2 Transmitters provide liquid level measurement for inventory monitoring. Add to their rugged reliability the major benefits of simplified service and maintenance. Performance characteristics of these transmitters include excellent stability and repeatability (better than 0.02% FS). Transmitter span accommodates a 3:1 turndown ratio* to match the application pressure range (i.e. tank depth) and the 4-20 mAdc output is compatible with PLCs or other control architecture using analog I/O.
KING-GAGE ES2 transmitters are applicable to most tanks or process vessels whose contents remain at normal atmospheric pressure. They measure hydrostatic head pressure created by liquid depth in the tank and are unaffected by foaming or internal obstructions such as agitators. Unlike load cells, pressure based measurement has lower installation cost and is far simpler to maintain thus ensuring more reliable readings.
Transmitters used in sanitary processing must often endure cycles of rapid temperature fluctuation. Washdown environments produce significant condensation on metallic surfaces that coupled with aggressive cleansing agents demand robust protection for these instruments. The ES2 transmitter's enhanced design uses encapsulation for full isolation of the internal electronics. This extends to the IP68 grade M12 signal connector that ensure integrity and long term reliability. You can be assured of a transmitter truly built for the demands and expectations of today's processing environment.
Sanitary Configurations
These sensors are especially suited to a wide range of sanitary applications on storage or continuous processing vessels. The 316 stainless diaphragm is appropriate for flush mount, clean-in-place installation employing an FDA-approved silicone rubber O-ring seal to achieve the crevice-free, positive compression seal between diaphragm and tank liner. Sanitary tank mountings include flush weld mountings with product contact surfaces of 316L stainless. (Quick disconnect sanitary adapters are also available for sensor mounting.)
*3:1 turndown ratio is applicable to 0-10 and 0-30 nominal range, refer to specifications for detailed span adjustment available on specific range models.
King-Gage ES2 Liquid Level Transmitter
ES2 Slimline Transmitter


Robust protection in washdown environments

Continuous liquid level measurement

Two wire loop powered (4-20 mA)

KING-GAGE® AcraSensor unit detects level by sensing pressure due to liquid depth while its pneumatic force balance diaphragm technique is remarkably free from drift or temperature effects. These sensors are especially suited to a wide range of sanitary applications on storage or continuous processing vessels. The standard AcraSensor + 868 D/P Sensor Control combination combines accuracy, rugged durability, reduced maintenance, and long term stability for liquid level tank gauging. Its integral transmitter converts the pneumatic isolation pressure to a proportional 4-20 mAdc signal suitable for process control or remote level indication.
The unique AcraSensor titanium diaphragm satisfies the 3-A Sanitary Standard (74-03) and is appropriate for flush mount, clean-in-place installation. An FDA-approved silicone rubber O-ring seal forms a crevice-free, positive compression seal between the diaphragm probe and mounting shell. Flush weld mountings are available with product contact surfaces of 316L stainless.
Operation requires pneumatic 860 Sensor Control or 868 D/P Sensor Control electronic transmitter and compressed air/gas supply.
King-Gage ACRA Sensor Liquid Level Transmitter

AcraSensor

Flush Mount Sanitary Design

Field Replaceable Sensor Diaphragm

Hybrid Design Minimizes Temperature Effects

The King-Gage LevelBAR multi-segment LED column displays include an individualized scale calibrated to the actual tank capacity. Marked in any specified unit(s) of measurement, it permits direct reading of total liquid weight or volume. This unique analog column indicator works as a local or auxiliary remote display in new or retrofit applications.
Pneumatic input models include an integrated differential pressure (D/P) element. This allows LevelBAR to be used with bubblers or other air operated systems as a direct replacement for mercury tank gauges or other fluid-filled manometers. It even provides 4-20 mA output compatible with other receivers or to use for process control functions.
King-Gage LevelBAR Liquid Level Display

LevelBAR

Visual Display of Tank Levels

Custom Scale for Weight or Volume

Direct Replacement for Manometer Gauges

4-20 mA output signal available to PLC

A complete integration solution, KING-GAGE® LP3 system unifies data acquisition, HMI display terminals, and networking flexibility for fluid processing operations. Addressing multiple tanks requiring level measurement and inventory monitoring, this system reduces I/O overhead at a PLC or other process control device.
More importantly, by performing the scaling functions independently, it frees up the PLC to focus on the batching and control functions (with register values loaded directly from the LP3 interface). The benefits of this approach include better data integrity and PLC performance optimized toward more critical control functions. The LP3 integral data acquisition function coupled with network connectivity, including Ethernet, simplifies the sharing of tank inventory data across the process floor or throughout a corporate enterprise.
Built-in digital communications capability for Ethernet, USB, RS485, RS232C supports up to 4 high-speed serial ports linking PLCs, SCADA systems, or Internet access (via an integrated web server). Network protocols directly supported by LP3 include Allen-Bradley DF1 over Ethernet and Modbus TCP/IP.
King-Gage LP3 Digital HMI Level Display

LP3 Tank Level Measurement System

Graphic 10.4" Color LCD Touch Screen HMI

Link Data via Ethernet/IP, A-B DF1, or Modbus TCP/IP

Supports Continuous Monitoring up to 32 Tanks

King-Gage LP2 SP Indicators provide continuous measurement of liquid inventory in storage or processing tanks. Calculating level on the basis of hydrostatic pressure created by liquid depth, the system measures total product mass for more precise material accounting. A full numeric keypad and function keys support various user selections, including direct entry of control setpoints (high or low level) for each tank. The two line alphanumeric LCD readout shows tank level, readout unit (user selective), tank name. and specific gravity in the normal display mode.
The King-Gage LP2 SP models add functionality of digital setpoints for simple level monitoring and basic control solution for many applications. These indicators support digital RS-485 communications to a central control system while allowing limited local control to production personnel. LP2 SP provides the user with two (2) fully independent SPDT relays per tank input channel. The hardware configuration includes normally-open (NO), normallyclosed (NC), and common (C) relay contacts. Factory programming options include standard LOW-HIGH (descending/ascending) or HIGH-HIGH (ascending/ascending) setpoint actuation.
King-Gage LP2 SP Level Display
LP2 SP Multiple Tank Indicator/Setpoint Controller

8 Tank Multiple Channel Capacity

Direct Entry of Digital Setpoints
 

Dual SPDT Controller Relays per Channel

King-Gage LP2 Model 4640 Indicators provide continuous measurement of liquid inventory in storage or processing tanks. The LP2 indicator expresses output directly in engineering units. A factory programmed capacity profile (Datapack iButton) correlates transmitter output to actual tank geometry. The indicator then displays the resulting value directly as total weight or volume of liquid in the tank.
The King-Gage LP2 indicator reads the proportional 4-20 mA signal from a liquid level transmitter. The actual sensor used to detect hydrostatic pressure created by liquid depth can be either electronic or pneumatic (using an electronic pressure transmitter to convert the sensor's pneumatic signal into 4-20 mA output). LP2 also supports digital communications output via multiple RS485 serial ports using Modbus RTU or generic ASCII character strings.
King-Gage LP2 Model 4640 Display
King-Gage LP2 Model 4640

Direct Volumetric Display of Tank Content

No User Scaling or Profiling

Dual RS-485 Serial Ports (Digital Output)

KING U203 Ultra-C Filter provides high efficiency air line filtration for point of use that's economically priced. It is the right choice for lower flow applications that demand ultra clean compressed air. The high efficiency 20 scfm two stage filter uses a self-draining coalescing element to remove large amounts of solid and liquid contaminants from the airline. Another unique aspect of the U203 design is a color indicating feature on the visible top element to signal the need for replacement.
KING filter cartridge elements provide equal efficiency regardless of flow rate. Filtering efficiency does not diminish during the life of the cartridges so you can be assured of consistent performance and air quality. Without question, most compressed air systems contain solid and liquid contaminants that affect performance and increase wear on equipment. Precision pneumatic instrumentation including KING-GAGE tank level gauging systems require clean, dry and oil-free compressed air for trouble free operation.
KING U203 Ultra-C Filter is intended for light duty environments not directly exposed to prolonged direct sunlight exposure. The U203 is built on a cast aluminum housing combined with a transparent polycarbonate sump. Energy conserving intermittent action automatic drain ensures that liquid contaminants are periodically discharged. This critical feature eliminates the maintenance problems associated with failure to drain condensate from the filter sump.
(An available variation, model U202 is the same unit but with a manual petcock drain.)
KING U203 Ultra-C Filters
King U203 Ultra-C Filter

Provides Clean, Dry, Oil-Free Compressed Air

Color Change Cartridge Life Indicator

Energy Conserving Automatic Drain

KING U205 Ultra-C Air Control Station is intended for light duty service environments to protect air operated equipment and instrumentation. Without question, most compressed air systems contain solid and liquid contaminants that affect performance and increase wear on equipment. Precision pneumatic instrumentation including KING-GAGE tank level gauging systems require clean, dry and oil-free compressed air for trouble free operation.
Model U205 Air Control Station is based on the KING Ultra C Filter combined with a filter-regulator and dial pressure gauge. The high efficiency 20 scfm two stage filter uses a self-draining coalescing element to remove large amounts of solid and liquid contaminants from the airline. This version of the station also includes a filter-regulator and dial gauge.
King filter cartridge elements provide equal efficiency regardless of flow rate. Another unique aspect of the U205 design is a color indicating feature on the visible top element to signal the need for replacement. Performance is consistent in that filtering efficiency does not diminish during the life of the cartridges.
KING U205 Air Control Stations are intended for light duty environments not directly exposed to prolonged direct sunlight. The U205 has an aluminum housing with polycarbonate sumps, while the regulator is supplied with cast zinc body. Inlet and outlet connections are 1/2" NPT designed to accept standard tube or pipe fittings.
KING U203 Ultra-C Filter
King Ultra-C Filter

Provides Clean, Dry, Oil-Free Compressed Air

Color Change Cartridge Life Indicator

Filter, Regulator, and Auto Drain Trap

 


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