DynaPak 2010N Version 05302001 ATEX Rev.
YZ Systems, Inc. • 3101 Pollok Drive • Conroe, Texas • USA • 77303 • P: 936.788.5593 • F: 936.788.5720
15
10.4 Calculate the counter setting using the
following chart:
1. your pump displacement (from .1 to .4cc’s)
=
a.__________
2. your sample cylinder volume in cc’s (300cc, 500cc, etc.)
=
b.__________
3. average flow rate (MMCF per day or MCM per day)
=
c.__________
4. sample period in days
=
d.__________
5. pulses/volume metered (pulses/MMCF or pulses/MCM)
=
e.__________
6. counter setting
=
a x c x d x e
(b)
Example #1:
English Gas Flow
Units
Example #2:
Metric Gas Flow
Units
pump displacement
(a.)
=
.2cc
.2cc
sample cylinder size
(b.)
=
300cc
300cc
average flow rate
(c.)
=
10 MMCF per day
10MCM/day
sample period
(d.)
=
30 days
30 days
pulses per volume metered
(e.)
=
100 pulses/MMcf
100 pulses/MCM
Example #1
counter setting = .2cc x 10 MMcf per day X 30 days X 100 pulses per MMcf =
20 pulses
300 cc
Example #2
counter setting = .2cc x 10 MCM per day X 30 days X 100 pulses per MCM =
20 pulses
300 cc
10. Sampler set-up - proportional-to-flow sampling
