WIKA A2G-25 Manual De Instrucciones página 11

6. Commissioning, operation / 7. Zero point adjustment
7. Zero point adjustment
Manual zero adjustment (standard)
■
1. Both the + and the – flow inputs must be disconnected
2. Press the zero point button until the red LED lights up
3. Wait until the LED switches off again. Now the instrument can be
reconnected.
4. In normal operation, we recommend that a zero adjustment is
carried out every 12 months.
WIKA operating instructions air2guide model A2G-25
5. Pressure output unit (and P OUT scale)
At 1,000 Pa At 2,000 Pa
0 ... 1,000 Pa 0 ... 2,000 Pa 0 ... 5,000 Pa 0 ... 7,000 Pa
0 ... 1 kPa 0 ... 2 kPa
0 ... 10 mbar 0 ... 20 mbar 0 ... 50 mbar 0 ... 70 mbar
0 ... 100 0 ... 200
mmWS
0 ... 4 0 ... 8
inchWS inchWS
The maximum value corresponds to an output signal of 10 V
6. Flow output unit for defining the V OUT
scale
7. V OUT scale, selectable:
m³/s → 10 V = 1 ... 50 m³/s
m³/h → 10 V = 4,000 ... 200,000 m³/h
cfm → 10 V = 2,000 ... 100,000 cfm
l/s → 10 V = 1,000 ... 50,000 l/s
scfh → 10 V = 1,000,000 ... 6,000,000
lpm → 10 V = 60,000 ... 3,000,000 lpm
8. Infinite response time selection.
9. Press the END button and the instrument
returns to the display mode.
At 5,000 Pa At 7,000 Pa
0 ... 5 kPa 0 ... 7 kPa
0 ... 500 0 ... 700
mmWS
mmWS
0 ... 20 0 ... 25
inchWS
GB
mmWS
inchWS
scfh
11