©
2019 CDI Meters, Inc.
10.19
Using the Outputs
The milliamp output is scaled so that four milliamps corresponds to zero flow and
20 milliamps corresponds to the range of the meter indicated on the data sheet.
The meter will display the milliamp full-scale value for a few seconds on startup.
It will also display it if the button on the main (lower) circuit board is pressed
twice.
The pulse output generates a square wave signal, sending one pulse for each
cubic foot of air that passes through the meter. The LED blinks with the pulse
output. At zero flow it may be on or off. The pulse output can be configured as a
threshold output, and the scaling of both the pulse output and the milliamp output
can be changed, using the optional configuration cable.
Using the Display
Pressing a button indicated by a circle on the front of the meter cycles the display
through four display options: rate, daily usage, cumulative usage and units of
measure, the last indicated by a digit: (0) for scfm, (1) for m
3
/min and (2) for
m
3
/hr. The cumulative values are indicated in thousands of cubic feet or cubic
meters. Holding the button pressed in either of the cumulative modes (daily
usage or cumulative usage) will reset that value to zero. The display normally
defaults to the rate display, but this can be changed, as can the units of measure
and the decimal point location in the cumulative modes. Please refer to
information on configuring the display.
Maintenance
If oil or dirt accumulates on the probes, the meter will read inaccurately. For this
reason, we recommend cleaning the probes from time to time. To clean the
probes, wipe them with a cloth dampened with alcohol or a similar degreaser. It
may be found that the system is clean enough that cleaning is not needed.
Warranty
CDI warrants solely to the buyer that the Model 5250 Flowmeter shall be free from
defects in materials and workmanship, when given normal, proper and intended
usage, for three years from the date of purchase. During the warranty period, CDI will
repair or replace (at its option) any defective product at no cost to the buyer. The
foregoing warranty is in lieu of any other warranty, express or implied, written or oral
(including any warranty of merchantability or fitness for a particular purpose). CDI’s
liability arising out of the manufacture, sale or supplying of the flowmeter, whether
based on warranty, contract, tort or otherwise, shall not exceed the actual purchase
price paid by the buyer, and in no event shall CDI be liable to anyone for special,
incidental or consequential damages.
