Level indicators
Liquid Level Indicator
Direct Readout / No Signal Required
Visual liquid level indicator designed to display level directly in atmospheric vessels without the need for signal conversion. Uses a cantilever spring and diaphragm system to provide accurate level indication with simple calibration. Available with an optional single switch configuration for electrical signaling and alarm integration.
GO TO PRODUCT PAGE >
Download Product Data Sheet >
Highlights
- Direct-reading scale in feet and inches; vessel height range 6-30 feet; 90 PSIG max head pressure
- Two-knob calibration (zero and span) achievable without changing liquid level in vessel
- Sealed cast aluminum housing; Teflon dry-film lubricated bearings require no oiling
- Diaphragm material options: Buna-N, fluorocarbon, Compound W, and Teflon
- Connection options: NPT, grooved, and 150RF flange in iron, steel, 316SS, and PVC
- Single Switch variant adds SPDT microswitch (5A @ 125/250/480 VAC) with adjustable high and low set points
- Snubber option available for turbulent or unstable process fluid conditions
Application
- Continuous liquid level indication on atmospheric storage and process tanks
- High and low level alarms on atmospheric vessels (Single Switch variant)
- Production, water disposal, and storage tank liquid level monitoring
SUBMERSIBLE LEVEL TRANSMITTER
Hydrostatic / 4–20 Ma Output
Submersible hydrostatic level probes designed for continuous liquid level measurement in tanks, vessels, and industrial applications. Supports measurement up to 500 mH₂O with 4–20 mA and voltage outputs for reliable signal transmission. Available with corrosion-resistant materials and ATEX-certified configurations.
GO TO PRODUCT PAGE >
Download Product Data Sheet >
Highlights
- Measuring range: 1 to 500 mH2O
- Output signal: 4…20 mA, 0…10 V, 0…2.5 V
- Accuracy: 0.2%
- Hastelloy or 316L stainless steel diaphragm
- ATEX certified
- Marine certificate: DNV GL
Application
- Continuous hydrostatic level measurement in tanks and vessels
- Industrial liquid level monitoring in oil and gas production
- Hazardous area level measurement requiring ATEX certification
- Marine and offshore liquid level applications
- Submersible level measurement in aggressive media
SMART SUBMERSIBLE LEVEL TRANSMITTER
Hart / Modbus Communication
Smart submersible hydrostatic level probes designed for continuous liquid level measurement in tanks and industrial applications. Supports measurement from 1 to 100 mH₂O with HART and Modbus communication for enhanced data integration and accuracy. Available in corrosion-resistant materials, including full titanium construction, with marine-certified configurations.
GO TO PRODUCT PAGE >
Download Product Data Sheet >
Highlights
- Measuring range: 1 to 100 mH2O
- Output signal: 4…20 mA + HART
- Modbus RTU communication protocol
- Accuracy: 0.1%
- Hastelloy or 316L stainless steel diaphragm
- Titanium construction available (SGE-25S.Smart)
- ATEX certified
- Marine certificate: DNV GL
Application
- Smart hydrostatic level measurement with HART or Modbus integration
- Level monitoring in oil and gas production tanks and vessels
- Hazardous area installations requiring ATEX certification
- Highly corrosive liquid applications requiring titanium wetted parts
- Marine and offshore level measurement
Hydrostatic Level Probes
Tank & Vessel Measurement
Submersible hydrostatic level probes designed for tank and vessel level measurement across a wide range of industrial applications. Supports measurement from 200 to 3000 mmH₂O with 4–20 mA and HART output for reliable signal transmission and control integration. Available with optional local display and marine-certified configurations for demanding environments.
GO TO PRODUCT PAGE >
Download Product Data Sheet >
Highlights
- Measuring range: 200 to 3000 mmH2O (up to 20m for APC-2000ALW/L)
- Output signal: 4…20 mA + HART
- Accuracy: 0.16%
- Local display option available
- ATEX certified
- Marine certificates: DNV GL, BV
Application
- Hydrostatic level measurement in storage tanks and process vessels
- Oil and gas production level monitoring with HART integration
- Deep tank or sump level measurement requiring extended range
- Marine and offshore liquid level applications
- Applications requiring local level indication at the probe