Instruction manual
28
www.cs-instruments.com
  Easy and affordable installation
  Units freely selectable via keypad m³/h, m³/min, l/min, l/s, kg/h, kg/min, kg/s, cfm
  Compressed air counter up to 1,999,999,999 m³. Resettable to "zero" via keypad
  Analogue output 4...20 mA, pulse output (galvanically separated)
  High measuring accuracy also in the lower measuring range 
  (ideal for leakage measurement)
  Negligibly small loss of pressure 
  Calorimetric measuring principle, no additional pressure and temperature
  measurement necessary, no mechanically moved parts 
  Gas types adjustable via software (nitrogen, oxygen, CO
2
, nitrous oxide, argon)
  Compressed air balancing, com-   
  pressed air consumption measurement
  Leakage air / leak rate determination
  Flow measurement of process 
  gases like e. g. nitrogen, CO
2
, 
  oxygen, argon, nitrous oxide
  Flow measurement at nitrogen 
 generators
Easy installation into the existing pipeline 
due to integrated measuring section
and weld neck fl ange 
(according to EN 1092-1 PN 40)
High measuring accuracy due
 to defined measuring section 
(inlet and outlet section).
At the touch of a button:
– reset of counter reading
– selection of units
Application-technological features of the 
consumption counters VA 420:
Application range of
VA 420:
Consumption
왗
왗
VA 420  – The advantages at a glance
4…20 mA output for actual consumption
Pulse output for total consumption (counter reading) 
Measuring device removable:
Dismounting of the whole measuring section 
is not necessary, no bypass required. 
Display twistable by 180°
Display shows 2 values:
Actual consumption in m³/h, l/min,…
Total consumption (counter reading) 
in m³, l
Values indicated in the display turnable 
by 180°, e. g. in case of overhead 
installation










