JETEC CDI 5200 Flowmeter for Compressed-Air Systems Instruction Manual
- June 4, 2024
- JETEC
Table of Contents
CDI 5200
FLOWMETER FOR COMPRESSED-AIR SYSTEMS – Rev. 3.0
- Easy to install
- No moving parts
- Weather resistant and surge protected (new with Rev. 3.0)
- Milliamp output
- Pulse output convertible to threshold output
- User-configurable scaling, filtering, and units of measure
- Optional RS-485 output for networking
The CDI 5200 clamps onto a pipe, with two flow-sensing probes projecting into the pipe through 3/16-in. drilled holes. It seals directly to the pipe; no cutting or welding is required for installation. Because each flowmeter is made and calibrated for a specific size of pipe, the digital display indicates flow directly, with no setup or adjustment. The meter measures flow by maintaining one probe warmer than the other. It determines the mass flow rate from the amount of heat required. The flow rate, in scfm or equivalent units, is shown on a large, four-digit display; a 4-20 mA output and a pulse output permit remote display, totalizing, and data collection.
AVAILABLE SIZES
Nominal Size a| Range b (cm)| Model No. for Sch 40 Steel| Model No. for Type L
Copper
1/2 in.| 100| 5200-05S| —
3/4 in.| 150| 5200-07S| 5200-07Cb
1 in.| 200| 5200-10S| 5200-10Cb
1-1/4 in.| 200| 5200-12S| 5200-12Cb
1-1/2 in.| 300| 5200-15S| 5200-15Cb
25 mm| 150| 25 M for 22 mm x 25 mm Aluminum
40 mm| 300| 40M for 36 mm x 40 mm Aluminum
(a) Other sizes are available. Please contact CDI. For metering larger pipe
sizes, please see our 5400 Series flowmeters.
(b) Range of milliamp output and recommended maximum flow.
Flowmeters for copper pipes have smaller ranges. Meters will function at
somewhat higher flow rates but at reduced accuracy.
SPECIFICATIONS
Accuracy: 5 percent of reading plus 1 percent of range for flows from 10
percent to 100 percent of indicated range at air temperatures between 20 and
120 degrees Fahrenheit
Fluids:
Compressed air and Nitrogen
Operating pressure:
200 psig maximum on Sch. 40 steel and on Type L Copper; consult CDI for other
materials and higher pressures.
Input power:
250 mA at 24 Vdc
Output resistance:
600 Ohms max.
Materials exposed to measured fluid:
Stainless steel, gold, thermal epoxy, and Viton (seal)
Ring material:
Aluminum
Display:
Four-digit LED display
Response time:
One second to 63 percent of change in value at flows above 30 percent of the
range
APPLICATION
The meter is designed for use with compressed air and nitrogen. If the meter
will be used at pressures below 15 psi, consult CDI about velocity
limitations. The air must be free of oil, dirt that could foul the probes, and
suspended water droplets. In a compressed-air application, the meter should be
installed downstream of a dryer. Each meter is calibrated for a specific size
and type of pipe. If a meter will be used in a type or size of pipe that is
not listed, consult CDI about a special calibration.
The meter is not to be used in safety or life-support applications.
It should not be used as a sole means of determining the required capacity of
air compressors and related equipment.
The meter must not be used in hazardous locations.
INSTALLATION
Drilling the holes to install the meter will release some metal shavings into
the pipe.
When planning the installation, make sure that all downstream equipment is
protected by filters, or take other precautions to ensure that shavings do not
reach critical equipment or get blown out in a way that could cause injury.
For best accuracy, the meter should be installed with at least 20 diameters of
straight pipe upstream and three diameters downstream.
Avoid installing the meter downstream of any item that could distort or
concentrate the flow, such as a partially-closed valve, a regulator, a filter
or moisture separator, two closely-spaced elbows in different planes, a long-
radius elbow, or a curved hose.
Allow at least 30 diameters of straight pipe between any such item and the
meter.
If a valve or other restriction will be immediately downstream of the meter,
provide at least five diameters downstream.
Select a location that meets these requirements and also provides good
visibility from the plant floor.
If this is not possible, consider using the remote display discussed below. To
install the meter, first shut off the supply of air to the pipe where the
meter will be mounted and allow the pressure to bleed down. Clamp the drill
guide firmly to the pipe, orienting it for the best visibility of the meter.
Drill the two holes and remove any resulting burrs from the outside of the
pipe. Make sure the outside surface of the pipe is clean and smooth. The meter
must be oriented to suit the direction of flow in the pipe. If doing so would
cause the display to be upside down, remove the cover and the display and
rotate both 180 degrees. Next, remove the back halves of the rings, insert the
probes into the holes in the pipe with the flow arrow pointing in the proper
direction, and re-assemble the rings. Tighten the cap screws firmly and evenly
so that the gaps between the halves of the rings are about equal on both sides
of the pipe.
MILLIAMP AND PULSE OUTPUTS
The meter has an isolated, unpowered, milliamp output. The meter is shipped with a jumper in place to power the output from the instrument’s dc supply. With the jumper in place, the meter will source a dc signal. The pulse output is an open collector, reference to the instrument ground. For applications in which a contact-closure output is required, the isolated pulse output (CDI 5200-IPO) should be used. It installs inside the meter. The pulse output can be made into a threshold output by using the optional configuration cable.
DISPLAY CONTROL AND CONFIGURATION
The display can be cycled through rate, daily usage, and cumulative usage using a button indicated by a circle on the front of the meter. The same button can be used to select a default display option, reset totals, and select units of measure. Please refer to the configuration instructions enclosed with the meter.
METER CONFIGURATION
Several parameters of the meter’s configuration can be changed by the user
using an optional configuration cable and software available from CDI. These
parameters include milliamp scaling, pulse scaling, conversion from pulse
output to threshold output, filtering (smoothing) of the output, pipe inside
diameter, and pressure compensation for high-pressure applications. For most
applications, none of these parameters need to be changed.
POWER SUPPLY
Each meter is furnished with a wall-plug dc supply for 110 V to 230 Volt AC
main with a 6-foot (1.5 M) cable plus a 14foot (4.2 M) extension cable. Prongs
for Australian, European, UK, and US outlets are provided, as appropriate. The
meter may alternatively be hard-wired to a 24-Volt dc supply. 18-Volt supplies
furnished with some earlier CDI flowmeters must not be used.
DRILL GUIDE
A single drill guide, the CDI 5200-DG, can be used with all CDI 5200
flowmeters. Each of the drill guides is furnished with a 3/16 inch drill bit
and a hex wrench.
TEL:+886-4-23729418
FAX:+886-4-23724011
www.jetec.com.tw