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CDI 5200 Flow Meter: Compressed Air Loop Energy Auditing Equipment Specs
Quick Answer: The CDI 5200 flow meter is an inline thermal dispersion meter built for compressed air loop energy audits. It gives live flow, pressure, and temperature data on one local display. Common pipe sizes run from DN15 to DN100, with outputs such as 4-20 mA, pulse, and RS-485 Modbus RTU. Silver Automation Instruments supplies this meter class and helps with compressed air audit instrument selection.
CDI 5200 Flow Meter Core Specs for Compressed Air Audits
Engineers choose the CDI 5200 flow meter because it handles compressed air and nitrogen without moving parts. The inline body installs in small and medium air headers. Typical process connections cover DN15, DN25, DN40, DN50, DN65, DN80, and DN100. The standard pressure rating is around 16 bar g at 50 °C. The temperature range fits most compressor rooms from 0 °C to 60 °C.
Most users read flow in m3/h, kg/h, or standard cubic feet per minute. Pressure shows in bar, temperature in °C, and totalized flow in m3. This matters for energy audits because you compare compressed air production with branch usage. The local display removes the need for a separate handheld device during a walkdown.
Output options include 4-20 mA signals for flow, pressure, and temperature. Many sites wire the pulse output to a building management system for total air consumption. RS-485 Modbus RTU is also common. If your PLC needs 4-20 mA HART, ask for that option during quote review. The meter usually runs on 24 Vdc power. Standard meters are for ordinary locations. If the compressed air line is in a hazardous area, ask about ATEX Zone 1 or Zone 2 options during the RFQ.
Why the CDI 5200 Works in a Compressed Air Loop
Here is the thing. Compressed air loop energy audits fail when you only read flow and ignore pressure drop. Air pressure changes with temperature, dryer load, and line restrictions. The CDI 5200 flow meter captures flow, pressure, and temperature at one point. That combination helps you find artificial demand and leaks.
In practice, most auditors place one meter after the dryer and filter package. A second meter goes on a main branch feeding a production hall. This gives a before and after reading. The difference is the air lost in the loop. We have seen this on customer sites many times.
Because the meter is inline, it creates a small pressure drop in the pipe. For a DN50 meter, the drop is usually small under normal plant flows. If you audit large ring mains above DN100, an insertion thermal mass flow meter can be a better fit.
Field Accuracy and Calibration Points
Most compressed air audits accept a flow accuracy around plus or minus 3 percent of reading. The CDI 5200 flow meter is designed for that class of service. It is not a metrology laboratory instrument. It is a plant audit tool that records trends and helps locate waste.
Air temperature changes in the compressor room can affect thermal mass flow meters. The CDI 5200 uses a PT100 class sensor for temperature compensation. This makes the flow reading more stable when the air temperature shifts after a dryer cycle.
For audit reports, record the zero point before the test. Shut off the air flow and let the meter stabilize. Then download or note the thermal drift. Most engineers skip this part. A simple zero check at the start improves data quality.
Industrial Users That Benefit from This Meter
A paint manufacturer in Southeast Asia used a CDI 5200 flow meter to compare air use between two spray booths. The readings showed one booth was using 18 percent more compressed air during the same shift. The plant found a leaking pilot valve on an automatic spray gun. T
Last year a customer in Vietnam asked us for a meter that could handle wet compressed air after the receiver. The plant had an undersized dryer. The CDI 5200 flow meter logged unstable flow during high humidity days. That data justified a dryer upgrade.
Water and wastewater plants in the Gulf often use compressed air for valve actuation. Food and beverage sites in Latin America use compressed air for packaging lines. Ocean vessels in Southeast Asia buy thermal mass flow meters for engine room starting air. Silver Instruments supports these users with selection and after sales service.
The CDI 5200 flow meter does not measure liquid viscosity in cP or conductivity in µS/cm. For those services, Silver Automation Instruments has Coriolis mass flow meters and electromagnetic flow meters.
CDI 5200 Flow Meter vs Insertion Thermal Mass Flow Meters
The CDI 5200 flow meter fits small and medium compressed air lines. It is an inline device. That means you need a pipe section between DN15 and DN100. Insertion meters fit larger ducts or ring mains where cutting a large section is more expensive. For a DN150 compressed air header, an insertion thermal mass flow meter is often cheaper and easier to install.
Inline meters are simple to install during a shutdown. They need straight upstream and downstream pipe lengths for stable flow. At least 10 pipe diameters upstream and 5 pipe diameters downstream is a practical rule for compressed air loops. Most OEM manuals for this class of device list similar requirements.
How to Buy and What to Send for a Quote
Do not send a plain request for a flow meter price. Send us your air pressure in bar, temperature in °C, pipe size in DN, and expected flow range in kg/h or m3/h. Also state if you need 4-20 mA HART, pulse, or Modbus RTU output. That lets our engineers return a specific quote fast.
You can reach Silver Instruments at Tel: +86-25-68650347. WhatsApp: +86-25-52155837. WeChat: +86 15365082610. Our team serves industrial users and distributors in Southeast Asia, Oceania, Latin America, Africa, and the Middle East.
For compressed air loop energy auditing equipment, the CDI 5200 flow meter is a practical choice. If you need a lower cost alternative or a larger line size, ask us about thermal mass flow meters from Silver Automation Instruments.
FAQ: CDI 5200 Compressed Air Flow Meter Specs
What does the CDI 5200 flow meter measure?
It measures flow, pressure, and temperature in a compressed air or nitrogen line. The display shows instantaneous flow, total consumption, pressure, and temperature. That makes it a fit for compressed air loop energy audits.
Which pipe sizes does the CDI 5200 support?
Common inline sizes are DN15, DN25, DN40, DN50, DN65, DN80, and DN100. For larger compressed air headers above DN100, an insertion thermal mass flow meter is often used.
What outputs are available on the CDI 5200?
Typical outputs include 4-20 mA for flow, pressure, and temperature, plus a pulse output for total flow. RS-485 Modbus RTU is a common option. If your site uses 4-20 mA HART, tell us during the RFQ.
Can the CDI 5200 be used for other gases?
Many users run the CDI 5200 on compressed air and nitrogen. For other gases, send us the gas composition, pressure, and pipe size. The meter must be calibrated for the actual gas to get useful air audit data.
How do I get a quote for a CDI 5200 flow meter for a compressed air audit?
Send us your pressure in bar, temperature in °C, pipe size in DN, and flow range. You can contact Silver Instruments at Tel: +86-25-68650347, WhatsApp: +86-25-52155837, or WeChat: +86 15365082610.
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