Druck DPI 142/150 Calibration Manual
K382 Issue No. 1
6
Calibration Check DPI 150
After a successful leak test, set the instrument to indicator mode:
1. Connect the pressure standard for the pressure range to be checked.
2. Set the pressure standard to zero pressure, if necessary press the zero key
so that the instrument display shows zero.
3. Adjust the pressure standard to the 0% span pressure value.
4. Compare the pressure value of the pressure standard to the value displayed
and record the difference.
5. Repeat steps 3 and 4 for the 100% span pressure value.
6. If the recorded difference exceeds the tolerance in the table, the instrument
needs a calibration adjustment.
7. Adjust the pressure standard to zero pressure.
The DPI 150 instrument has the following pressure ranges.
Table 4
Applied Pressure
% span
Tolerance
0
± 0.01%FS
100
± 0.01%FS
Transducer
range
Equivalent Pressure Units
bar
mbar
psi
Pa
hPa
kPa
MPa
0.025
25
036
2500
25.0
2.5
0.0025
0.07
70
1
7000
70
7
0.007
0.2
200
3
20000
200
20
0.02
0.35
350
5
35000
350
35
0.035
0.7
700
10
70000
700
70
0.07
1
1000
15
100000
1000
100
0.1
2
2000
30
200000
2000
200
0.2
3.5
3500
50
350000
3500
350
0.35
7
7000
100
700000
7000
700
0.7
10
10000
150
1000000
10000
1000
1
20
20000
300
2000000
20000
2000
2
35
35000
500
3500000
35000
3500
3.5
70
70000
1000
7000000
70000
7000
7
100
N/A
1500
N/A
100000
10000
10
135
N/A
2000
N/A
135000
13500
13.5
200
N/A
3000
N/A
200000
20000
20
350
N/A
5000
N/A
350000
35000
35
700
N/A
10000
N/A
700000
70000
70