403-11-20 | Rosemount™ 403 Contacting Conductivity Sensors
403-11-20 | Rosemount™ 403 Contacting Conductivity Sensors

403-11-20 | Rosemount™ 403 Contacting Conductivity Sensors

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Brand : Ram Automations
SKU: RAMA287267
Availability: In Stock
Product Type: simple

The Rosemount 403 Contacting Conductivity Sensor is a high-precision sensor used for measuring electrolytic conductivity in water-for-injection (WFI), water purification, and...

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Description

The Rosemount 403 Contacting Conductivity Sensor is a high-precision sensor used for measuring electrolytic conductivity in water-for-injection (WFI), water purification, and sanitary processing environments in the food, beverage, and pharmaceutical industries. Designed with sanitary flanges and hygienic wetted materials, it ensures reliable, accurate conductivity readings with minimal maintenance. Its steam-sterilizable build, selectable cell constants, and built-in RTD temperature compensation deliver exceptional performance under strict regulatory and process conditions.

Key Features:

  • Sanitary flange connections (1½-in or 2-in) for hygienic installation and clean-in-place compatibility

  • Selectable cell constants (0.01, 0.1, 1.0/cm) for flexible range and sensitivity

  • Internal platinum RTD for precise temperature compensation and measurement accuracy

  • Wetted materials compliant with USP Class VI and 21 CFR 177; surface finish of 0.4 µm Ra for minimal biofilm and contamination risk

  • Steam sterilizable to ~135 °C and capable of high pressure operation for harsh process environments

Specifications:

  • Model: Rosemount 403 Contacting Conductivity Sensor

  • Cell Constants: 0.01/cm, 0.1/cm, 1.0/cm

  • Flange Size: 1½-in or 2-in stainless steel sanitary flange

  • Wetted Materials: Electrodes – Titanium; Insulator – PCTFE; Body – 316/318 Stainless Steel; O-rings – EPDM, all meeting USP/21 CFR standards

  • Operating Temperature: 0-105 °C; Steam Sterilization up to ~135 °C

  • Maximum Pressure: ≈ 250 psig

  • Surface Finish: ~0.4 µm Ra (16 micro-inch)

  • Standard Cable Length: 10 ft (~3 m); longer options available


Built for demanding hygienic and regulatory-driven environments, the Rosemount 403 Contacting Conductivity Sensor delivers unmatched reliability, sanitary construction, and measurement precision. From pharmaceutical water-for-injection systems to critical food and beverage processes, it is a trusted choice by process engineers. Specify the Rosemount 403 for high accuracy, regulatory compliance, and robust performance in your industrial automation and water treatment applications.

Shipping & Return

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.