Fluke molbloc-L Data sheet
Calibration
Calibration Calibration
Calibration Calibration
molbloc-L ranges with low pressure
and downstream calibrations
molbloc size and full sca le flow (sccm @ 0 °C)
Size
Gases 1E1 5E1 1E2 2E2 5E2 1E3 5E3 1E 4 3E4 1E5
Nitrogen N
Argon Ar 10 50 100 200 500 1 000 5 000 10 000 30 000 80 000
Helium He 10 50 100 200 500 1 000 5 000 10 000 30 000 100 000
Sulfur hexafluoride SF
Inert
Xenon Xe 10 40 80 150 400 800 3 500 8 000 11 000 30 000
Butane C4H
Ethane C
Ethylene C
2H6
2H4
Hydrogen H
Flammable
Methane CH
Propane C
3H8
Carbon tetrafluoride CF
Hexafluoroethene C
2F6
Trifluoromethane CHF
Fluoro-carbons
Air Air 10 50 100 200 500 1 000 5000 10 000 30 000 100 000
Carbon dioxide CO
Carbon monoxide CO 10 50 10 0 200 500 1 000 5 000 10 000 30 000 100 000
Nitrous oxide N
Other
Octafluorocyclobutane
2
1
C4F
Oxygen O
See page 2 for footnotes.
Calibration
F
10 50 100 200 500 1 000 5 000 10 000 30 000 100 000
2
10 50 100 200 500 1 000 2 000 6 000 6 000
6
500 1 000 4 000
500 3 000 20 000
20 100 130 270 670 2 300 2 200 7 000
10
20 100 200 400 1000 2 000 6 000 18 000 18 000 60 000
16 80 160 320 800 1 600 7 000 16 000 20 000 70 000
20 100 200 400 1000 2 000 10 000 20 000 60 000 200 000
2
16 80 160 320 800 1 600 8 000 16 000 40 000 120 000
4
20 100 200 400 1000 2 000 3 000 10 000 10 000
10 50 100 200 500 1 000 4 000 10 000 12 000 36 000
4
10 50 100 200 500 1 000 2000 6000 6 000
10 50 100 200 500 1 000 4000 10000 12 000 38 000
3
10 50 100 200 500 1 000 5 000 10 000 20 000 60 000
2
30 50 14 0 1 400 3 000
1 000 2 000 6 000 50 000
1 000 5 000 40 000
1 000 2 000 7 000
600 3 000 25 000
600 1200 4 000
600 4 000 30 000
O 10 50 100 200 500 1 000 5 000 10 000 20 000 60 000
15 60 65 130 330 1 10 0 1 050 3 400
8
10 50 100 200 500 1 000 5 000 10 000 30 000 80 000
2
9 17 34 85 175 840 1 700
— —
5 000 40 000
4 000 30 000
4 000 30 000
— —
molbloc-L dimensions
5E3 and lower 1E4,3E4 1E5
A 58.50 mm
(2.303 in)
B 16.00 mm
(0.630 in)
C 32.00 mm
A
B
C
(1.260 in) sq
D 68.84 mm
(2.750 in)
E 19.06 mm
(0.750 in)
F
124.00 mm
(4.881 in)
74.50 mm
(2.933 in)
24.00 mm
(0.945 in)
48.00 mm
(1.890 in) sq
80.00 mm
(3.150 in)
28.00 mm
(1.102 in)
157.00 mm
(6.181 in)
74.50 mm
(2.933 in)
24.00 mm
(0.945 in)
48.00 mm
(1.890 in) sq
80.00 mm
(3.150 in)
28.00 mm
(1.102 in)
164.00 mm
(6.458 in)
Side viewSide view
A
B
Top viewTop view
C
1E5All Except 1E5
Calibration
F
—
—
—
M4 X 0.7 thread
7.00 mm (0.276 in) deep, 2 Pl
D
0.25 in VCR M end fittings
E
End views
Bottom viewBottom view
E
Connects to 0.5 in bead VCR F
M4 X 0.7 thread
7.00 mm (0.276 in) deep, 2 Pl
D
0.375 in VCR M end fittings
molbloc-L ranges with
high pressure calibrations
molbloc size and full sca le flow (sccm @ 0 °C)
Size
Gases 1E1 5E1 1E2 2E2 5E2 1E3 5E3 1E 4 3E4 1E5
Nitrogen N
Argon Ar 20 100 200 400 1 000 2 000 10 000 17 000 45 000 N/A
Helium He 20 10 0 200 400 1000 2 000 10 000 20 000 65 000 N /A
Inert
Sulfur hexafluoride SF
Xenon Xe 20 100 150 350 650 1 700 3 350 11 000 11 000 N /A
2
Butane
Ethane C
Ethylene C
C4H
2H6
2H4
Hydrogen H
Flammable
Methane CH
Propane C
3H8
Carbon tetrafluoride CF
Hexafluoroethene C
2F6
Trifluoromethane CHF
Fluoro-carbons
Air Air 20 100 200 400 1 000 2 000 10 000 20 000 50 000 N/A
Carbon dioxide CO
Carbon monoxide CO 20 10 0 200 400 1 000 2 000 10 000 20 000 40 000 N /A
Other
Nitrous oxide N
Octafluorocyclobutane
2
2
C4F
Oxygen O
A bold value indicates that the maximum flow is limited by the maximum Reynolds number value of 1 200 which is reached
before the normal differential pressure range is reached. In that case, the second value gives the minimum flow for which
measurement uncertainty (accuracy) is equal to the nominal uncertainty specification. Divide the second value by 10 when
using molbox RFM microrange option.
Where there is no value in the field (–), this indicates that the maximum Reynolds number is reached before the differential
pressure reaches 5 kPa (1 kPa in the case of the 1E5 molbloc), therefore calibration with that gas is not useful.
20 100 200 400 1000 2 000 10 000 20 000 50 000 N/A
2
25 100 120 250 600 2 000 2 000 6 200
6
15 30 50 150 300 1 400 2 800 N/A
950 1 900 5 700
N/A N/A N /A N /A N/A N/A N/A N /A N /A N/A
10
40 200 350 700 1 800 4 000 6 000 20 000 20 000 N/A
40 200 350 700 2 000 4 000 7 000 22 000 22 000 N/A
40 200 400 900 2 000 4 500 22 000 45 000 130 000 N/A
2
35 175 350 700 1 700 3 500 13 000 33 000 42 000 N/A
4
50 200 200 400 1 000 3 500 3 500 11 000
20 100 200 400 1 000 2 000 3 700 12 000 12 000 N/A
4
25 100 120 250 600 2 000 1 800 6 000
25 125 240 450 1 200 2 500 4 000 12 000 12 000 N /A
3
25 125 250 500 1 250 2 500 6 600 20 000 20 000 N /A
2
25 125 250 500 1 250 250 0 11 000 20 000 20 000
O
N/A N/A N /A N /A N/A N/A N/A N /A N /A N/A
8
20 100 200 400 1 000 2 000 10 000 20 000 40 000 N/A
2
25 50 10 0 250 500 2 600 5 4 00
15 30 50 150 300 1 500 3 000
50 10 0 200 2 300 4 50 0 13 8 00 N /A
2 000 4 000 12 700
2 000 12 000
1 200 2 400 7 300
30 60 150 1 500 3 000 8 800
1 400 2 500 8 800
1 500 3 000 9 000
1
Due to low vapor pressure, only downstream calibration type is available.
2
The operating pressure range is greater than the vapor pressure value for this gas.
7 500
6 000
—
—
—
7 200
7 500
6 500
N/A
N/A
N/A
N/A
Calibration type Operating pressure (absolute)
Downstream Atmospheric pressure downstream of the molbloc
Low Pressure 250 to 325 kPa (36 to 48 psia) upstream of the
molbloc
High Pressure 325 to 525 kPa (48 to 76 psia) upstream of the
molbloc
Fluke Calibration. Precision, performance, confidence.
Fluke Calibration
PO Box 9090,
Everett, WA 98206 U.S.A.
For more information call:
In the U.S.A. (877) 355-3225 or Fax (425) 446-5116
In Europe/M-East/Africa +31 (0) 40 2675 200 or Fax +31 (0) 40 2675 222
In Canada (800)-36-FLUKE or Fax (905) 890-6866
From other countries +1 (425) 446-5500 or Fax +1 (425) 446-5116
Web access: http://www.flukecal.com
©2009-2012 Fluke Corporation. Specifications subject to change without notice.
Printed in U.S.A. 6/2012 3542583C_EN
Modification of this document is not permitted without written permission
from Fluke Corporation.
Fluke Europe B.V.
PO Box 1186, 5602 BD
Eindhoven, The Netherlands
™
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