For each nominal diameter there is a choice of eight pulse values (in decade steps).
A definite frequency value (f
max
= 400 Hz at v = 33 ft/s, pulse width = 1 ms) is only
available for a single switch position.
Example:
A maximum permissible pulse frequency f
max
= 20 Hz (input frequency of an
electronic counter) should not be exceeded. The nominal diameter is assumed to be
80 mm; the rate of flow Q = 600 USgal/min.
Pulse value =
Q
=
600 gal/min
=
10 gal/s
= 0.5 gal
f
max
20 s
-1
20 s
-1
At DN 80 select the switch position for the next higher pulse value
⇒
1 gal per pulse.
Conversely when the flow rate Q is known and a pulse value has been selected, the
exact pulse frequency can be calculated.
(f
max
= 400 Hz
at v = 33 ft/sec)
Table
B
Pulse value
⇒
US units [gal/pulse]
Switch No. 5, 6 and 7
DN
[mm]
2
4
8
15
25
32
40
50
65
80
100
125
150
200
250
300
350
400
450
500
600
700
800
900
1000
1200
1400
1600
1800
2000
0.0001 gal
0.0001 gal
0.001 gal
0.01 gal
0.01 gal
0.01 gal
0.01 gal
0.1 gal
0.1 gal
0.1 gal
0.1 gal
0.1 gal
1 gal
1 gal
1 gal
1 gal
1 gal
1 gal
10 gal
10 gal
10 gal
10 gal
10 gal
10 gal
10 gal
10 gal
100 gal
100 gal
100 gal
100 gal
0.001 gal
0.001 gal
0.01 gal
0.1 gal
0.1 gal
0.1 gal
0.1 gal
1 gal
1 gal
1 gal
1 gal
1 gal
10 gal
10 gal
10 gal
10 gal
10 gal
10 gal
100 gal
100 gal
100 gal
100 gal
100 gal
100 gal
100 gal
100 gal
1000 gal
1000 gal
1000 gal
1000 gal
0.01 gal
0.01 gal
0.1 gal
1 gal
1 gal
1 gal
1 gal
10 gal
10 gal
10 gal
10 gal
10 gal
100 gal
100 gal
100 gal
100 gal
100 gal
100 gal
1000 gal
1000 gal
1000 gal
1000 gal
1000 gal
1000 gal
1000 gal
1000 gal
10000 gal
10000 gal
10000 gal
10000 gal
0.1 gal
0.1 gal
1 gal
10 gal
10 gal
10 gal
10 gal
100 gal
100 gal
100 gal
100 gal
100 gal
1000 gal
1000 gal
1000 gal
1000 gal
1000 gal
1000 gal
10000 gal
10000 gal
10000 gal
10000 gal
10000 gal
10000 gal
10000 gal
10000 gal
100000 gal
100000 gal
100000 gal
100000 gal
1 gal
1 gal
10 gal
100 gal
100 gal
100 gal
100 gal
1000 gal
1000 gal
1000 gal
1000 gal
1000 gal
10000 gal
10000 gal
10000 gal
10000 gal
10000 gal
10000 gal
100000 gal
100000 gal
100000 gal
100000 gal
100000 gal
100000 gal
100000 gal
100000 gal
1000000 gal
1000000 gal
1000000 gal
1000000 gal
10 gal
10 gal
100 gal
1000 gal
1000 gal
1000 gal
1000 gal
10000 gal
10000 gal
10000 gal
10000 gal
10000 gal
100000 gal
100000 gal
100000 gal
100000 gal
100000 gal
100000 gal
1000000 gal
1000000 gal
1000000 gal
1000000 gal
1000000 gal
1000000 gal
1000000 gal
1000000 gal
10000000 gal
10000000 gal
10000000 gal
10000000 gal
100 gal
100 gal
1000 gal
10000 gal
10000 gal
10000 gal
10000 gal
100000 gal
100000 gal
100000 gal
100000 gal
100000 gal
1000000 gal
1000000 gal
1000000 gal
1000000 gal
1000000 gal
1000000 gal
10000000 gal
10000000 gal
10000000 gal
10000000 gal
10000000 gal
10000000 gal
10000000 gal
10000000 gal
100000000 gal
100000000 gal
100000000 gal
100000000 gal
0.00002087 gal
0.00008348 gal
0.0003339
gal
0.001174
gal
0.003261
gal
0.005343
gal
0.008348
gal
0.01304
gal
0.02204
gal
0.03339
gal
0.05217
gal
0.08152
gal
0.1174
gal
0.2087
gal
0.3261
gal
0.4696
gal
0.6391
gal
0.8348
gal
1.057
gal
1.304
gal
1.878
gal
2.556
gal
3.339
gal
4.226
gal
5.217
gal
7.513
gal
10.23
gal
13.36
gal
16.90
gal
20.87
gal
Caution!
Work with this table only when you have turned switch No. 3 to “ON” (US units).
For switching position "ON-ON-ON", set values may differ fron those shown in the table. In such cases, the valid value may be read
from the service plate in the electronics compartment cover. Also, the pulse duty cycle of 1:1 can deviate.
Promag 30
5. Operation and Commissioning
Hauser
39
Содержание promag 30
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