Instruction manual
www.cs-instruments.com
27
Consumption
Flow measuring ranges VA 420 for compressed air (ISO 1217: 1000 mbar, 20°C)
Connection
Outer pipe Inner pipe
Measuring range L L
1
H H
1
A
thread
dia. mm dia. mm from to mm mm mm mm mm
R
1
/4” 13.7 08.5 0.8 90 l/min 194 137 174.7 165.7 15
R
1
/2” 21.3 16.1 0.2 90 m
3
/h 300 210 176.4 165.7 20
R
3
/4” 26.9 21.7 0.3 170 m
3
/h 475 275 179.2 165.7 20
R 1” 33.7 27.3 0.5 290 m
3
/h 475 275 182.6 165.7 25
R 1
1
/4” 42.4 36.8 0.7 480 m
3
/h 475 275 186.9 165.7 25
R 1
1
/2” 48.3 41.8 1.0 550 m
3
/h 475* 275 189.9 165.7 25
R 2” 60.3 53.1 2.0 900 m
3
/h 475* 275 195.9 165.7 30
* Attention: Shortened inlet section! Please observe the recommended minimum inlet section
(length = 10 x inner diameter) on site.
Description Order no. Order no.
Stainless steel 1.4404 Stainless steel 1.4301
VA 420 with integrated
1
/4” measuring section 0695 1420 0695 0420
VA 420 with integrated
1
/2” measuring section 0695 1421 0695 0421
VA 420 with integrated
3
/4” measuring section 0695 1422 0695 0422
VA 420 with integrated 1” measuring section 0695 1423 0695 0423
VA 420 with integrated 1
1
/4” measuring section 0695 1426 0695 0426
VA 420 with integrated 1
1
/2” measuring section 0695 1424 0695 0424
VA 420 with integrated 2” measuring section 0695 1425 0695 0425
Option: High-pressure version PN 40 Z695 0411
Special measuring range VA 420 according to customer’s requirements Z695 4006
Connection cables:
Connection cable 5 m (power supply, analogue output) 0553 0104
Connection cable 10 m (power supply, analogue output) 0553 0105
Pulse cable for consumption sensors with M12 plug, length 5 m 0553 0106
Pulse cable for consumption sensors with M12 plug, length 10 m 0553 0107
Further accessories:
Closing cap for meas. section VA 420 (Material: Aluminium) 0190 0001
Closing cap for meas. section VA 420 (Material: Stainless steel 1.4404) 0190 0002
CS Service Software for FA/VA 400 sensors including PC 0554 2005
connection set, USB interface and interface adapter to the
sensor as well as CSM-S for data recording
Mains unit in wall housing 100-240 V, 10 VA, 50-60 Hz/24VDC, 0.35 A 0554 0108
Mains unit 100-240 VAC / 24 VDC, 0.35 A for VA/FA 400 Series, 0554 0107
2 m cable
5 point precision calibration with ISO certificate 3200 0001
Technical data VA 420
Parameters: m³/h, l/min (1000 mbar,
20 °C) in case of com
pressed air resp. Nm³/h,
Nl/min (1013 mbar, 0 °C
in case of gases
Adjustable via m
3
/h, m
3
/min, l/min, l/s,
keypad: ft/min, cfm, m/s,
kg/h, kg/min
Meas. principle: calorimetric measurement
Sensor: 2 x silicium chip
Meas. medium: air, gases
Gas types air, nitrogen,
adjustable via argon, nitrous oxide, CO
2
,
software: oxygen
Meas. range: see table at the left
Accuracy:
±1.5% of m.v., ±0.05% of f.s.
On request: Special
calibration via 5 point
ISO calibration certificatet
Operating temp.:
-30...80 °C
Operating press.: up to 16 bar
Optional up to PN 40
Analogue output:
4...20 mA for m
3
/h resp. l/min
Pulse output: 1 pulse per m
3
resp. per liter
galvanically separated
PC connection: SDI interface
Power supply: 24 VDC smoothed ± 15 %
Burden: < 500 Ohm
Housing: polycarbonate
Meas. section: stainless steel, 1.4301
or 1.4404
Mounting thread R
1
/4
”, R
1
/2
”,
meas. section: R
3
/4
”, R 1”, R 1
1
/4
”,
R 1
1
/2
”, R 2”
external thread