Skip to Main Content
  • Instrumart
Instrumart logo
  • Products
  • Brands
  • Applications
  • Lab
  • Blog
  • Account
  • Email Us
  • 1-800-884-4967
  • What can we help you find?

    Can’t find what you’re looking for? Contact one of our engineers today. We’re open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET.
    • 1-800-884-4967
    • Email Us
    • Live Chat
  1. Level Instruments
  2. Level Transmitters

KROHNE OPTISOUND 3040 C Ultrasonic Level Gauge

Level measurement during processing and storage of solids.

KROHNE OPTISOUND 3040 C Ultrasonic Level Gauge
KROHNE OPTISOUND 3040 C Ultrasonic Level Gauge
Retired products cannot be ordered
Please contact Instrumart for a recommended replacement.

View Company Reviewsby Trustpilot
Manufactured
  • By KROHNE
Includes
  • FREE Ground Shipping
  • FREE Lifetime Tech Support
Product Manual Product Specs
Questions?
Call 1-800-884-4967 or email sales@instrumart.com. Open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET.
Trustpilot

Overview

Features

  • Process temperature: -40 to 176°F (-40 to 80°C)
  • Process fitting: flange DN 200, with swivelling holder from DN 50
  • Process pressure: -0.2 to 1.5 bar, -20 to 150 kPa, -2.9 to 21.8 psi
  • Four-wire 4 to 20 mA/HART signal output
  • Measuring range:
    • Liquids; 1 to 25m (3.3 to 82ft)
    • Solids; 1 to 15m (3.3 to 49.2ft)
  • Level indication of solids in silos and hoppers
  • Level measurement in stone crushes
  • Profile measurement on conveyor belts

Description

The KROHNE OPTISOUND 3040 C Ultrasonic Level Gauges are especially suitable for level measurement of solids, but are also good for liquids. The instruments offers measuring ranges of 1 to 25m (3.3 to 82ft) for liquids and 1 to 15m (3.3 to 49.2ft) for solids.

Resistant materials for the transducers and process fittings also allow applications in corrosive products (depending on the model).

Short ultrasonic pulses in the range of 18 kHz to 35 kHz are emitted by the transducer to the product surface, reflected there and received by the transducer. The pulses travel at the speed of sound - the elapsed time from emission to reception of the signals depends on the level in the vessel.

The latest microcomputer technology and the proven processing software select the level echo from among any number of false echoes and calculate the exact distance to the product surface. An integrated temperature sensor detects the temperature in the vessel and compensates the influence of temperature on the signal running time.

By simply entering the vessel dimensions, a level-proportional signal is generated from the distance. It is not necessary to fill the vessel for adjustment.

Documents

Spec Sheets

  • KROHNE OPTISOUND 3040 C Ultrasonic Level Gauge Datasheet PDF (1.6 MB)

Manuals

  • KROHNE OPTISOUND 3040 C Ultrasonic Level Gauge Manual PDF (1.4 MB)

Other

  • KROHNE Level Meter Application Data Sheet PDF (444 KB)
  • Instrumart's Level Application Form (141 KB)

Links

  • All possible part numbers

Need Help? Call a Flow engineer at 1-800-884-4967

We're open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET

MaryKate R. headshot MaryKate R.
Applications Engineer
4 years at Instrumart
Martin K. headshot Martin K.
Applications Engineer
Mathias H. headshot Mathias H.
Senior Applications Engineer
15 years at Instrumart
Jason D. headshot Jason D.
Senior Applications Engineer
22 years at Instrumart
Lou P. headshot Lou P.
Senior Applications Engineer
28 years at Instrumart
Patrick M. headshot Patrick M.
Applications Engineer
3 years at Instrumart
Dan R. headshot Dan R.
Applications Engineer
3 years at Instrumart
MaryKate R. headshot MaryKate R.
Applications Engineer
4 years at Instrumart
Martin K. headshot Martin K.
Applications Engineer
Mathias H. headshot Mathias H.
Senior Applications Engineer
15 years at Instrumart
Jason D. headshot Jason D.
Senior Applications Engineer
22 years at Instrumart
Lou P. headshot Lou P.
Senior Applications Engineer
28 years at Instrumart
Patrick M. headshot Patrick M.
Applications Engineer
3 years at Instrumart
Dan R. headshot Dan R.
Applications Engineer
3 years at Instrumart
MaryKate R. headshot MaryKate R.
Applications Engineer
4 years at Instrumart

Recently Viewed

KROHNE OPTISOUND 3040 C Ultrasonic Level Gauge
KROHNE OPTISOUND 3040 C Ultrasonic Level Gauge
United States Canada Mexico
Shop
Products
Brands
Applications
Support
Customer Service
Ask a Question
Live Chat
Track Order
Fraud Prevention
Financing
Our Company
Blog
About Us
Contact Us
Jobs
Travel Information
Our Team
Privacy Policy
Terms and Conditions of Sale
Terms and Conditions of Purchase
Accessibility Statement
Connect
1-800-884-4967
sales@instrumart.com
Instrumart
35 Green Mountain Dr
S Burlington, VT 05403 US
Mo-Th 8:00am to 5:30pm ET
Fr 8:00am to 5:00pm ET
Join Us on Facebook
Follow Us on X

Instrumart is a member of a family of industrial stores

Instrumart Compressor World Pump World BioPharm World Filtration World Motion World Qualitrol Engineered Solutions Wholesale Air Pipe
© Instrumart 2025

Family of Industrial Stores

Welcome to our family of stores, your go-to source for a wide selection of commercial and industrial products in the flow control and automation sectors. Each store features a curated range of specialized industrial solutions, with many items designed to complement each other, ensuring you can find everything you need for your specific application. Explore the stores below to discover our extensive product offerings for your business needs.

  • Instrumart

    Shop Industrial and Laboratory Instruments.

    Shop Now!
  • Compressor World

    Shop Compressed Air Equipment.

    Shop Now!
  • Pump World

    Shop Industrial, Water, and Waste Water Pumps.

    Shop Now!
  • BioPharm World

    Shop Sanitary Process Solutions and Products.

    Shop Now!
  • Filtration World

    Shop Industrial Filters.

    Shop Now!
  • Motion World

    Shop Motion Control and Process Automation Systems.

    Shop Now!
  • Qualitrol

    Shop Remanufactured or Repair Automation Products.

    Shop Now!
  • Engineered Solutions

    Shop Custom Engineered and Manufactured Systems.

    Shop Now!
  • Wholesale Air Pipe

    Shop Air Piping.

    Shop Now!