Example Of Setting; Password Setting Instruction - Bell VFM60 Series User Introduction Manual

starting frequency
Resonance frequency
027
ending frequency
Relative density of
030
compressibility factor
031 mol% of N2 and H2
032 mol% of CO2
033 Higher heating value
Note:
Max freq output=10KHz, the pulse factor for total flow should be set properly set according to the
current total flow.

5.3 Example of setting

Sample: For vortex flowmeter VFM60, measure gas in DN50 pipe, K factor= 7.802P/L, density preset,
mass flow display unit is kg/h. 4~20mA output with a flow range of 0~4000kg/hr
Code setting
Digital setting

5.4 Password setting instruction

There is no password set in default in a new VFM60 digital vortex flowmeter, users can set a
password following instruction below.
Enter code setting, set C47=01, confirm and quit then enter the password setting ineterface as
picture 5.5
Picture 5.5 Password setting interface
Date:24/04/2020
（0，999999]
[0.55，0.90]
[0，0.1]
[0，0.3]
MJ/mol，For calculation of compressibility
[20，48]
Address Code Description
01 01 gas
02 01 Density preset
05 02 4~20mA analog output
005 2.0000 Density=2
7．802 K factor=7.802 P/L
008
009 4000 Flow rate of 20mA
010 0 Flow rate of 4mA
015 50 Pipe size=50mm
SPC
0000
26 / 59
VFM-60
Vortex Flowmeter
For high speed steam measure use
For calculation of compressibility factor of
natural gas
For calculation of compressibility factor of
natural gas，eg.if 1%, please input 0.01
For calculation of compressibility factor of
natural gas，eg.if 1%, please input 0.01
factor of natural gas
Rev1.3
User's Manual