Keller U.S.-Built Digilevel Precision SDI-12 Submersible Level Transmitter
DESCRIPTION
The Digilevel employs Keller!ˉs proven piezresistive sensor technology coupled with an SDI-12 serial-digital interface to create a more versatile and valuable tool for environmental level monitoring applications. SDI-12 is a standard communications protocol used to interface microprocessor-based sensors with data recorders for environmental data acquisition. This convertible instrument may be used for either submersible level or bubbler pressure measurement with user-selectable pres-
sure connection caps. The conical cap is designed to promote automatic cleaning of the sensing diaphragm, helpful where the
submersible level transmitter is deployed in high-silt conditions. The optional bubbler transmitter cap provides a 1/8!±NPT female pipe thread for connection to the bubbler apparatus. The Digilevel is ideal for remote applications where battery-powered operation with minimal current draw and networking multiple sensors to a data recorder are required. The Digilevel is compatible with all SDI-12 v1.3 commands. In addition, it is capable of operating in several emulate modes for popular SDI-12 level/pressure transmitters including manufacturer-specific extended commands. A graphical user interface and Dongle are available options for those who may be unfamiliar with SDI-12 commands.
SPECIFICATIONS
Accuracy
Std. !à0.1% F
1
Level
Opt. !à0.01 ft when reading !ü 10ftW
or !à0.1% of reading >10 ftW
2
Temperature !à0.5!
Supply Verification !à0.2 VD
Resolution 12-bit
Supply 8 - 28 VDC
Pressure/temp Output SDI-12 Version 1.3
Compensated Temp. Range Std. -10 - 60!a
Opt. 0 - 40!a
Available Pressure Ranges Std. Infinite 0-3 through 0-900 ft W.C.
Opt. 0-3 through 0-70ft W.C.
Wetted Materials Std. 316L stainless steel, Polyamide,
Fluorocarbo Opt. Titanium
Electrical Termination Std. Vented Polyethylene
Opt. Hytrel or Tefzel
Protection Rating IP68
Optional Accessories Desiccant tube
1/8!± NPT female bubbler ca
1/2!± NPT male conduit fittin
Stabilizing weight
Termination enclosure
Cable hanger
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