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HOBO Compressed Air Flow Meter


Compressed Air Flow Meter - 1 - 80 SCFM

The T-CDI-5200-10S is a flow meter for compressed air systems. It measures flow by maintaining one probe warmer than the other. It calculates the mass velocity from the amount of heat required, and then calculates the flow on the basis of pipe area. This model fits 1" steel pipes.


Requires analog port selection during U30 system configuration and use of a S-FS-CVIAwhen using the H22-001 data logger. When using a U12 data logger, this sensor requires a 4-20mA input cable (CABLE-4-20mA).


The T-CDI-5200-10S Sensor is for use inIndoor environments.


The T-CDI-5200-10S Sensor supports the following measurements:

Compressed Air Flow


  • This adds the ability for users to be able to measure compressed air flow (SCFM).
  • Easy to install
  • Digital display


To see the full specifications for this product, please see our product manual found under the documentation tab.

Measurement range, 5200 model: 1 - 80 SCFM
Measurement range, 5400 model: 3 - 350 SCFM (calibrated), 350 - 600 (uncalibrated)
Accuracy: (5200 model) 5% of reading plus 1% of full scale @ air temperatures 40 - 120F
Accuracy: (5400 model calibrated range) 5% of reading plus 1% of full scale @ air temperatures 40 - 120F; (5400 model extended range) 7% of reading from rated fule scale to 150% of calibrated range, @ air temperatures 40 - 1200F
Medium: Compressed air, nitrogen
Operating pressure, 5200 model: 30 to 170 psig for best accuracy. 200 psig max on Sch 40 steel
Operating pressure, 5400 model: 200 psig max on Sch 40 steel
Input power: 250 mA @ 18 - 24 VDC
Output resistance: 400Ω max
Response time: 1 sec to 63% of final value
Output: selectable 4 - 20mA or pulse
Display: 4-digit LED
Ring material: Aluminum
Size / Weight, 5200 model: 3.2x2.2x1.6 in / approx. 1.2 lb
Size / Weight, 5400 model: 3.2x2.2x1.6 in / approx. 1.4 lb

Note: Recommended: 5200-DG (and 5400-S-DG) Drill Guide that facilitates accurately locating the holes that are needed to mount the flowmeter.