Electromechanical Level Transmitters On NOSHOK, Inc.

LiquiSeal™ 738 Series Differential Pressure Purge Control Level Transmitters
LiquiSeal™ 738 Series Differential Pressure Purge Control Level Transmitters
(18)
- 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
788 Series Differential Pressure Purge Control Level Transmitters
788 Series Differential Pressure Purge Control Level Transmitters
(18)
- 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
868 Series Differential Pressure Sensor Control Level Transmitters
868 Series Differential Pressure Sensor Control Level Transmitters
(18)
- 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

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LiquiSeal™ 738 Series Differential Pressure Purge Control Level Transmitters

788 Series Differential Pressure Purge Control Level Transmitters

868 Series Differential Pressure Sensor Control Level Transmitters