Toughest Brands   |  Unbeatable Support

Note: Actual product may be slightly different from pictured

CDI Meters 5100 Series Inline Flow Meter

Product ID: N/A Category Tag
Model: 5100


Starting at $625.00$685.00
Some Models In Stock
Need Help? Call or Text us at 864-894-1400. We’re open Mon-Fri 8-5 pm ET.
Business Financing for as low as: $[approve_total]/month
Apply in 60 seconds
Lenders compete

To view price, select your options below...


Call or text us at 864-894-1400. Experienced Sales Engineers are standing by to discuss your unique situation.

Download Brochure

Actual Dimensions & Weight


Shipping Dimensions

NOT ACTUAL SIZE OF PRODUCT (Includes Box, Crate or Pallette Dimensions)

(A) Length: 2"
(B) Width: 2"
(C) Height: 2"
Weight: 3 lbs


The CDI 5100 extends the capability of the CDI 5000 series to the low flow rates found in many point-of-use applications. It does this by concentrating the flow into a small area that is chosen to optimize the tradeoff between pressure drop and low-flow sensitivity. Used in its intended flow range and at a pressure of 100 psig, the 5100 will create a pressure drop no greater than one psi. $625 – $685.


  • Accurate measurement of small point-of-use flows
  • Minimal pressure drop
  • Weather resistant and surge protected
  • Milliamp output
  • Pulse output convertible to threshold output
  • User-configurable scaling, filtering and units of measure
  • Optional wired outputs for networking

Like the other 5000-series flowmeters, the 5100 is a thermal mass design, using one probe to sense the air temperature and maintaining the other ten degrees warmer. By concentrating the flow where it passes the two probes, it is able to measure low air flows without requiring small passages that could clog or create excessive pressure drops.

The meter is furnished with a carefully-reamed six-inch piece of size-specific pipe to be installed where the air enters the meter. With this pipe in place, there is no other requirement for flow conditioning or straight upstream pipe. The meter may be installed between quick disconnect fittings to test air usage by small pieces of equipment.

Technical Specs

Nominal Pipe Sizes

3/8 in. – 1/2 in.


5 percent of reading plus 1 percent of range at air temperatures between 20 and 120 degrees Fahrenheit


Compressed Air, Nitrogen

Operating Pressure

200 psig maximum

Input Power

250 mA at 24 Vdc

Output Resistance

600 Ohms max.

Exposed Materials

Anodized aluminum, aluminum, stainless steel, gold, thermal epoxy and Viton (seal)


Four digit LED display

Response Time

One second to 63 percent of change in value at flows above 30 percent of range.

Additional information

Weight 3 lbs
Dimensions 2 × 2 × 2 in

0.375 NPT 20CFM, 0.5 NPT 40CFM


There are no reviews yet.

Be the first to review “CDI Meters 5100 Series Inline Flow Meter”

Your email address will not be published. Required fields are marked *

36 Month Standard Manufacturers Warranty*

*Exclusions may apply.

-- Extended warranty may be available, consult documentation for details. --

Related Products

Having trouble understanding the basics OF AIR COMPRESSION ?

Thank You For Having Our Back!

Here is a little something for yours!

FREE Gear for all orders over $400

Have Questions? Call Us.

Our customer service team strives to answer your call on the first ring, no automated phone systems allowed!

The Worlds Top Rated Brands

We only partner with the BEST Air Compressor Brands because we want your purchase to be worry-free!

FREE or Low Cost Shipping

No matter where you are located, most of our items are shpped FREE, a few are shipped with a low fixed cost.

Low Interest Financing

When lenders compete, making smart equipment decisions is easy.

Live Sales Engineers Available

Our Professionals are ready to help you with your technical questions backed by decades of experience.

Price Match Guarantee!

Found it cheaper somewhere else? no worries, we will make sure you get the best deal on your new equipment.

Can't Find What You Need?

Connect with an Engineer Today!