LD “Top Mount/Dipstick” Level Transmitter

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Hundreds of customers have proven for themselves that Anderson-Negele’s dualdiaphragm technology level transmitters are the clear choice for monitoring liquid inventory levels in virtually any atmospheric storage application. But, what about:

  • Level applications where bottom access is not available?
  • Rotating filler bowls that make bottom mounting impractical?
  • Wide temperature swings that cause other sensors to shift uncontrollably?
  • Other top-mount solutions that fail unexpectedly due to coating, lack of conductivity or mechanical failure?

For these tough applications, Anderson-Negele now offers the “LD” series of topmount level transmitters. The design is based on our proven “SL” platform which provides the industry’s best accuracy, temperature stability, and reliability. The “LD” is simple to specify, install and calibrate. It easily replaces problematic devices such as ball floats, pneumatics, capacitance probes and magneto-strictive sensors. It pays for itself almost immediately by providing more accurate fill levels with less downtime for cleaning and maintenance.

So, if you have an application like one described above and want to see how the “LD” will provide the kind of reliable control you’ve always wanted, give us a call. We’ll work up a proposal the same day and get you a unit within two weeks.


  • Top-mount configuration provides for easy installation without special fixturing or welding
  • Micro-processor based platform
  • No moving parts for highest reliability and cleaning in-place
  • Quick Disconnect Receptacles with optional Field Wiring Connectors
  • Standard lengths from 15” to 36” adaptable to any existing vessel
Part No.
Product Code
Temperature Compensation
30 - 220 degF
2" Tri Clamp
Insertion Length
Sensor Wiring
QDR w/No Cable, no FWC
Measured Error Accuracy
±0.75% of URL (± 0.5" w.c.)
Repeatability Accuracy
±0.30% of URL (± 0.25" w.c.)
Within published specifications for one year minimum
Operating Range
Minimum span 30” w.c.
Process Temperature Limits
0 – 265°F (-18 – 130°C) (process)
Compensated Temp. Range
30 – 220°F (-1 – 104°C) (process) / 30 – 120°F (-1 – 104°C) (ambient)
Response Time
526 mSec
Calibration Stability
Within published specification for one (1) year minimum
Supply Voltage
12-40 VDC / 1550 ohms (max.) at 40 VDC, 750 ohms (max) at 24 VDC
4-20mA dc, 2-wire. Internal test points supplied
Electrical Connection
1/2" NPT electrical entry via replaceable M12, 5-pin Eurofast receptacle
Process Connections
2" Tri-Clamp®
Housing /Wiring Material and Finish
316L SS electropolished to 15Ra max
Head Wetted Parts Materials and Finish
304 and 316 SS finished to 32Ra max
3 lbs 14 oz
Enclosure Compliance/Protection
IP66 / IP69K(when equipped with QDR) / Washdown approved
3-A compliant
Designed and manufactured to sound engineering practices in accordance with Article 3.3 of the PED 97/23/EC
Electromagnetic Compatibility (EMC): CE Compliant (when equipped with shielded molded cord set)
2 years

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“Industrial Technical Services is a single source Instrumentation and Automation company. We provide certified calibrations, PLC programming, custom controls and Panels”.


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