DIY Flow Bench

Depression

15.00

inH2O

Diff Pressure

2.02

inH2O

Flow Rate

356.34

CFM

Adjusted Flow

390.12

cfm @ 28 inH2O

Pitot

0.34

inH2O

Swirl

-27.82

rpm

Temperature

22.61

Celcius

Baro Pressure

100.97

millibar (hPa)

Humidity

55.25

%RelH

Status OK

Ref Pressure mV:  
MAF mV:  
Pitot mV:  


Lift: 1.50 3.00 4.50 6.00 7.50 9.00 10.50 12.00 13.50 15.00 16.50 18.00 1000 900 800 700 600 500 400 300 200 100 Flow (cfm)


System Settings

WiFi Info

 The name of your WiFi network
 Your WiFi Password
 Access-Point name for direct WiFi connection
 Access-Point password
 DNS Hostname (used for connecting via URL e.g. http://diyfb.local)
 Number of milliseconds before WiFi retries connection

API Settings

 Character used to delimit API / Serial data
 Baud rate for serial communication

Data Filters

 Used to filter out non-zero flow values when bench is not running
 Minimum reference pressure that bench is considered running
 Minimum MAF voltage that bench is considered running
 Mean buffer size - Used for smoothing results.

Bench Settings

Select bench type
 Diameter of MAF Housing. (Leave as zero to use standard housing diameter)
 Screen refresh rate in milliseconds
 Bench depression used for adjusted flow calcs
Display unit of temperature
 Distance between valve lift data points

Calibration Settings

 Flow rate of calibration orifice in cfm
 Reference depression of calibration orifice in in/wg
 Maximum allowable deviation in depression
 Depression value above which leak test activates

Orifice Data

 Flow rate of orifice #1 in cfm
 Test Pressure for orifice #1 in in/wg
 Flow rate of orifice #2 in cfm
 Test Pressure for orifice #2 in in/wg
 Flow rate of orifice #3 in cfm
 Test Pressure for orifice #3 in in/wg
 Flow rate of orifice #4 in cfm
 Test Pressure for orifice #4 in in/wg
 Flow rate of orifice #5 in cfm
 Test Pressure for orifice #5 in in/wg
 Flow rate of orifice #6 in cfm
 Test Pressure for orifice #6 in in/wg





Calibration Data

 Measured calibration offset
 Measured leak test value
 Measured leak test value