FSM4000 ELECTROMAGNETIC FLOWMETER |  OI/FSM4000-EN REV. E  59 
 
 
 
 
 
 
Supply/Return 
Forward 
When the flow direction ‘Forward/reverse flow’ is selected, the flow 
direction is indicated in the display with ‘→ V’ for forward and ‘← R’ 
for reverse. If the forward flow setting is selected, the totalizer 
counts the forward flow only. If the flow is reversed, warning 10 
‘Reverse flow Q’ is displayed.
 
 
 
 
 
Off, 1, 2, 3, 4 
noise reduction is switched on when the flow rate signal is: 
  very unstable or 
  temporarily or permanently frozen (error E) 
Notice: Activating noise reduction increases the response time.
 
 
 
 
 
 
 
 
 
 
ml; l; m3
t; lb; prog unit
1)
; ft
3
 
2)
 
Select the engineering units for volume and mass flowrate 
totalization. If the physical units are changed, the transmitter 
checks and changes the pulse factor and pulse width 
(0.1
 ms to 2000 ms) depending on the measuring range. The 
transmitter first changes the pulse factor and then the pulse width. 
1)
  kgal = Factory setting 
  ft
3 
= added only for PROFIBUS PA 
 
        Unit Qmax            l/s; l/min; l/h; m3/s; 
m
3/min; m3/h; m3/d; 
usgps; usgpm; usgph; 
usmgd; igps; igpm; igph; 
igpd; bbl/s; bbl/m; 
bbl/h; bbl/d; g/s; 
g/min, g/h; 
kg/s;kg/min; kg/h; 
kg/d; t/min; t/h; t/d; 
lb/s; lb/min; lb/h; lb/d; 
ml/s, ml/min 
Prog. Unit/s
1) 
Prog. Unit/min
1) 
Prog. Unit/h
1) 
Prog. Unit/d
1) 
Select the unit for volume and mass flow. This unit refers to 
Qmax DN, Qmax and the instantaneous status, if these are 
displayed in physical units. 
For PROFIBUS PA, the following units are also displayed
: ft3/s; 
ft
3/min; ft3/h; ft3/d . 
For PROFIBUS PA, the following units are not displayed: Prog. 
unit and ml/s. 
1) kgal = Factory setting