• 4 mA to 20 mA output for broad compatibility
  • Better than ±0.02% span repeatability
  • Piezoresistive technology for excellent long term stability
Unit of Measure

Specifications

Series

N/A 5600

Type

N/A Differential Pressure Level Transmitter

Range of Adjustment

N/A 0 to 277 inH2O through 0 to 830 inH2O, 0 to 7.0 mH2O 0 to 21.0 mH2O

Transmitter Turndown Ratio

N/A 3:1

Note for Span Adjustment Range

N/A IMPORTANT! Accuracy, linearity, and non-repeatability values are based on nominal range.

Temperature [Min]

N/A -16 ºC0 ºF

Temperature [Max]

N/A 54 ºC120 ºF

Material

N/A Machined brass body with acrylic semi-gloss enamel finish; integral filter element is aluminum with acrylic semi-gloss enamel finish

Accuracy

N/A ± 0.22% Full Scale

Fittings

N/A Polyflo; 1/4 in. tube 1/4 in. tube x 1/4 in. National Pipe Thread (NPT)

Voltage/Load Capacity Ratings

N/A The KING-GAGE® D/P Transmitter requires a source of DC power for operation. The minimum excitation voltage necessary for the transmitter is 10 Vdc. Any receiving components (meters, data recorders, programmable controllers, etc.) installed in the process loop circuit must be taken into account when determining the required power supply voltage. The internal resistance of each device added together represents the total "load" residing on the circuit loop.

Depth Measurement [Max]

N/A 1,937 inH2O49.0 mH2O

Output Signal (Milliampere Direct Current (DC) (mAdc))

N/A 4 to 20 mA

Direct Current (DC) Power Supply Voltage (Unregulated)

N/A 14 to 40 V

Repeatability

N/A ± 0.20% of Calibrated Span

Flow Rate (Air Purge)

N/A Nominal 1 cfh (Cubic Feet Per Hour) at Specified Differential
Maximum Air Consumption Under 5 cfh (Cubic Feet Per Hour).

SafeGard Option

N/A An adjustable pressure-limiting control that permits pre-setting a maximum value for pressure output from the Purge Control. SafeGard range available as 25 inH2O to 650 inH2O or 650 inH2O to 1750 inH2O

Pressure Ranges

Nominal Span Adjustment Range

N/A 0 to 30 psid

Span Adjustment Range [Min]

N/A 0 to 10 psid

Pressure [Max]

N/A 300% Over-Range

Burst Pressure

N/A 200 psig

Pressure Range

N/A 0 to 30 psid0 to 2.06 bar

Compressed Air Requirement

N/A 35 to 150 psig Supply Pressure at Control Inlet

Operating Limit (Maximum Pressure)

N/A Pressure above 300% nominal range (overrange) will result in damage to the transmitter (200% may cause a shift in calibration). Burst pressure is 200 psi and will cause catastrophic and physical failure of the pressure element.

Differential Pressure Purge Control

N/A Unit incorporates differential air flow regulator with flow control orifice
Fixed differential set to nominal 10 psid
Output is 1:1 pneumatic pressure (hydrostatic force equivalent)
Includes an integral differential pressure (D/P) transmitter converting pneumatic pressure into 4 mAdc to 20 mAdc electronic output

Pressure to Milliampere (mA) Conversion

N/A KING-GAGE® D/P Transmitters accept either gage or differential pressure pneumatic inputs that are converted to a proportional 4-20 mA output signal. This two wire signal loop is compatible with typical process components that accept analog input including PLCs. Designed to operate over a broad voltage range, these transmitters work with power sources ranging from 14-40 Vdc (based on load requirements).

Output current limiting and continuous no-load operation ensures reliability in even the most demanding situations. Isolated test meter terminals permit in-process monitoring for troubleshooting. This allows the user to easily check the transmitter output without having to remove it from the process loop circuit.

Pressure Ranges are Span Adjustable

N/A Transmitter span accommodates a 3:1 turndown ratio (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.) to match the application pressure range (i.e., tank depth). This permits ranging of the device to provide full scale output for maximum resolution in process control operations. Individual transmitter ranges of 0–5 through 0–50 psid are offered. These yield far greater stability than comparable single range units requiring high turndown ratios to fit the application.

Differential Pressure Pneumatic Sensor Controls

N/A The KING-GAGE® D/P Transmitter is also offered in a hybrid version combined with an air flow control for pneumatic sensors or downpipe (bubbler) systems. These combination units allow for direct 4-20 mA signal from the tank using the integrated differential pressure transmitter

D/P Sensor Controls are designed for use with KING-GAGE® pneumatic diaphragm sensors. The air control portion of these units creates a 1:1 pneumatic pressure directly proportional to liquid depth in the tank. Acting as a force balance, the pneumatic pressure offsets the hydrostatic pressure exerted against a diaphragm at the tank. The electronic transmitter then converts this pressure into a 4-20 mA output signal.

D/P LiquiSeal™ Controls and D/P Purge Controls are used in conjunction with a downpipe (or bubble tube) extending down through the liquid contents of the tank. This type of sensor also acts as a force balance. A continuous purge of compressed air into the pipe displaces the liquid and creates a pneumatic pressure equivalent to hydrostatic head pressure. The transmitter converts this pressure into a 4-20 mA output signal.

Temperature Ranges

Compensated Temperature Range

N/A 32 to 120 ºF0 to 54 ºC

Options and Accessories

Differential Pressure Module (Compact Surface Mount)

N/A Not environmentally sealed, place in protected location

5900-1-3: Milliamp output; 4-20 mAdc 0-30 psid/0-2.06 bar range
None (1/8" NPT connection)

788 Series Differential Pressure Purge Control

N/A
  • Generates a constant flow of compressed air to purge a downpipe
  • Integral differential pressure transmitter provides 4 mAdc to 20 mAdc output proportional to liquid level
  • All-pneumatic design does not include integral transmitter
  • Provides 1:1 pressure signal to a compatible indicator or external transducer through 1/4 in. airline tubing
  • Holds a fixed pressure differential across a precision orifice to ensure constant flow rate of 1 cfh (cubic foot per hour), making it possible to maintain a linear 1:1 response of the sensing system
  • Backpressure sensed is equivalent to the hydrostatic head pressure due to actual liquid depth

738 Series Differential Pressure LiquiSeal™ Control

N/A Fully integrated air purge regulator that provides continuous level measurement
Integral differential pressure transmitter provides 4 mAdc to 20 mAdc output proportional to liquid level
Reliable proven sensing technique
A highly refined versions of the basic bubbler air control
All-pneumatic version available
Simple to install and maintain

868 Series Differential Pressure Sensor Control

N/A
  • 4 mA to 20 mA output for broad compatibility
  • Better than ±0.02% span repeatability
  • Piezoresistive technology for enhanced stability
  • Also offered in hybrid versions combined with an air flow control for pneumatic sensors or downpipe (bubbler) systems

Application

Application

N/A
  • Tank level indication
  • Marine
    • Tank level, draft monitoring and vessel management
    • Ballast water
    • Fuel oil
    • Fresh water
    • Lube oil
    • Brine
    • Preload
    • Holding

Tank Gauging Applications

N/A Acting on the force balance principle, a pneumatic sensor generates air pressure equivalent to the hydrostatic force created by liquid depth. This pneumatic pressure is directed into the D/P transmitter. Pressure is converted to an electronic 4-20 mAdc output proportional to liquid depth. Twisted pair cabling is used to form the signal loop through which the remote indicator receives the transmitter output

The KING-GAGE® indicators shown in these system views correlate the transmitter output to total volume or weight of tank contents. This is determined by using a pressure versus capacity listing corresponding to the actual tank dimensions.

Features

Transmitter Signal Loop

N/A As is typical of two wire transmitters, electrical power to the signal loop is supplied through twisted pair cable. Excitation voltage (+V) is provided by the receiving device or from a separate Vdc power supply installed in the loop. The actual voltage necessary for operation of the system will depend upon the overall load resistance of the loop.

In most applications, the KING-GAGE® Digital Indicator or LevelBAR indicator provides 24 Vdc excitation to power the transmitter signal loop.

Additional Information

Additional Information

N/A
  • Piezoresistive element for less frequent recalibration
  • 4 mA to 20 mA two wire output for monitoring or control
  • Better than ± 0.02% span repeatability
Liquid level gauging demands a high degree of accuracy and repeatability. This is especially true for quality control in batch processing operations. That is why KING-GAGE® D/P Transmitters are specifically designed to provide optimal performance in tank gauging applications. They utilize a precision piezoresistive sensor element that provides longer term stability. Guaranteed accuracy is within ± 0.2% F.S. and repeatable to within ± 0.02% of calibrated span.

Warnings

Product Warranty

N/A All KING-GAGE®, a NOSHOK Company products are guaranteed to be free from defects in material and workmanship for one (1) year from the date of purchase.

Repair Services Warranty: 90 days limited warranty.

Prop 65 Warnings

N/A
WARNING: This product can expose you to chemicals including Lead and Nickel, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov