Depth Sensors
Technel has a broad line of depth sensors to meet every application. Keller submersible level transmitters are known for their superior reliability, reasonable cost, and ready availability. They feature small size and integral signal conditioning; simplifying installation anywhere quality liquid level sensors are needed. Best of all, Keller level transducers provide the user with an infinite combination of level ranges, several output options, and custom cable lengths ensuring the perfect fit for new or existing installations and monitoring equipment. They are frequently paired with a SCADA, PLC, or compatible display/control system for use as a water level indicator or controller. Paroscientific Digiquartz® Depth Sensors offer accurate depth measurements to 7000 m and have been successfully deployed for use in wave and tide gauges, tsunami detection, ocean current surveys, seabed subsidence, inverted echo sounders, towed arrays, and to calibrate the latest underwater mapping Sonar systems.
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The Keller Acculevel is a flexible, high-accuracy, submersible pressure transmitter. The extremely rugged body is available in 316 Stainless Steel, Hastelloy, and Titanium for corrosion resistance. The Acculevel is ideal for applications ranging from hydroelectric reservoir recording to drop-in tank level monitoring. Available pressure ranges: user-selectable from 0-3 to 900 ft of water Accuracy: 0.25% FS TEB, Optional Accuracy: 0.1% FS Temperature compensated -10°C to 80°C Electrical Input: 8 – 28V DC with built-in lightning/surge protection. Output: RS-485 and 4..20 mA or 0-5V or 0-10V Physical Dimensions Ø0.825″ x 4.3″ Cable: Hytrel jacketed, Shielded, vented 5-wire. Ø0.23″. User-replaceable. MODBUS Compatible. A 1/2″ conduit fitting is available for all Keller transducers.
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The Keller Digilevel and the Digilevel EC transducers combine Keller’s high-accuracy piezoresistive sensors with an intelligent SDI-12 digital interface for compatibility with equipment already installed in the field. The Digilevel EC was developed in conjunction with Technel Engineering to meet Environment Canada’s requirement for a field-replacable 3/8″ atmospheric reference tube. Both transducers include a newly designed anti-fouling flush diaphragm to resist algae growth and silting. Available pressure ranges: user-selectable from 0-3 to 900 ft of water Accuracy: 0.1% FS TEB, Optional Accuracy: 0.1% USGS OSW specification Temperature compensated -10°C to 60°C Electrical Input: 8 – 28V DC with built-in lightning/surge protection. Output: SDI-12 v1.3 with emulation modes for Tavis, Design Analysis, and Pressure Systems/Esterline transducers. Physical Dimensions Digilevel: Ø1″ x 8.9″, Digilevel EC: Ø2.5″ x 10.5″ Cable: Hytrel jacketed, Shielded 4-wire. Ø0.23″. User-replaceable. SEACON connector on Digilevel EC.
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This OEM-grade water level sensor is the lowest-cost solution we are able to provide. As a result, a minimum order quantity of 25 applies to this OEM product. This product does not include the electrical surge suppression which is standard on most other Keller transmitters. Available pressure ranges: set ranges 0-11.5, 34.5, 115.5, and 231 ft of water Accuracy: 1% FS TEB, Optional Accuracy: 0.5% FS Temperature compensated 0°C to 50°C Electrical Input: 8 – 28V DC Output: 4..20 mA Physical Dimensions Ø0.825″ x 2.9″ Cable: Hytrel jacketed, Shielded, vented 2-wire. Ø0.23″. User-replaceable.
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A lower-cost analogue-only alternative to the Acculevel, the Keller Levelgage is every bit as durable and reliable as other transducers in this series. Available pressure ranges: user-selectable from 0-3 to 900 ft of water Accuracy: 1% FS TEB, Optional Accuracy: 0.5% FS Temperature compensated -10°C to 80°C Electrical Input: 8 – 28V DC with built-in lightning/surge protection. Output: 4..20 mA and 0-5V or 0-10V Physical Dimensions Ø0.825″ x 4.3″ Cable: Hytrel jacketed, Shielded, vented 3-wire. Ø0.23″. User-replaceable.
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The Keller LevelRat was developed in response to the need for a durable, non-stick, abrasion resistant flush diaphragm for high grease and solids content sewage lift stations. The resultant formed Kynar® diaphragm design is ideal for other applications such as slurry tanks and landfill monitoring as it is a much more durable material than standard Teflon-coated rubber solutions while retaining the anti-fouling properties. Available pressure ranges: user-selectable from 0-5 to 100 ft of water Accuracy: 1% FS TEB Temperature compensated -10°C to 80°C Electrical Input: 8 – 28V DC with built-in lightning/surge protection. Output: 4..20 mA and 0-5V or 0-10V Physical Dimensions Ø1.26″ x 4.3″ Cable: Hytrel jacketed, Shielded, vented 3-wire. Ø0.23″. User-replaceable. A 1/2″ conduit fitting is available for all Keller transducers.
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The Keller Microlevel is the smallest diameter submersible transmitter in its class. Ideally suited for down-hole and driven well applications the Microlevel combines all the advantages as the Acculevel into a smaller, more convenient package. Available pressure ranges: user-selectable from 0-3 to 900 ft of water Accuracy: 0.25% FS TEB, Optional Accuracy: 0.1% FS Temperature compensated 0°C to 80°C Electrical Input: 10 – 30V DC with built-in lightning/surge protection. Output: RS-485 and 4..20 mA Physical Dimensions Ø0.63″ x 4.9″ Cable: Hytrel jacketed, Shielded, vented 5-wire. Ø0.23″. User-replaceable. MODBUS Compatible.
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Ideal for low-range water level monitoring such as estuary research or pump control applications, this ceramic capacitive sensor allows precise measurement with the very high overpressure protection required for sensor durability. Available pressure ranges: user-selectable from 0-4 to 120 inches of water Accuracy: 0.25% FS TEB, Optional Accuracy: 0.1% FS Temperature compensated 10°C to 50°C Electrical Input: 8 – 28V DC Output: RS-485 and 4..20 mA Physical Dimensions Ø1.5″ x 2.5″ Cable: Hytrel jacketed, Shielded, vented 5-wire. Ø0.23″. User-replaceable. MODBUS Compatible. A 1/2″ conduit fitting is available for all Keller transducers.