Portable Flow Transfer Standard
PORTABLE FLOW TRANSFER STANDARD
THERMAL METHOD
W W W . M K S I N S T . C O M
Calibration & Service
Type PFTS2A
The PFTS2A is an easy-to-use precision flow measurement system that uses MKS MassFlo® thermal mass flow transfer standards. The high stability of the MKS standards assures
minimal calibration drift during the recommended six month certification period. Each
transfer standard is calibrated against a NIST-traceable primary standard. When corrected
to the calibration data, accuracies of better than 0.5% of Full Scale will be achieved.
Up to 4 mass flow controllers or mass flow meters may be accommodated within the
PFTS2A’s case. Two Type 167A readouts are provided. One is for the transfer standard
that is in use; the other may be used, via an external connector, to power and read the
analog MFC or MFM that is being tested. All transfer standards are continuously powered,
minimizing change over time. A valve open switch permits MFC standards to operate as
MFMs for additional flexibility.
The PFTS2A is packaged in a wheeled, portable caddy which may be used on the bench
or easily transported wherever the system is needed.
Features & Benefits
• Self-contained unit contains up to four
transfer standard mass flow controllers
or mass flow meters
• Select from 14 Full Scale ranges: 10
sccm to 200 slm (N2 equivalent)
• May be used for bench or in situ testing
of thermal MFCs or MFMs, rotameters, or
other mass flow measurement or control
instruments
• Each transfer standard is calibrated
directly to a piston or bell prover primary
standard
• Accuracy is within 1.0% of Full Scale or
0.5% of Full Scale corrected (N2)
• Two readouts are provided: one for any
of the transfer standards, one for the
MFC or MFM under test
• NIST traceable standards assist in
compliance with government and
industry regulations such as ISO9000
Specifications and
Ordering Information
Transfer Standard
Accuracy
Electronics Display
Fittings
Power Required
Enclosure
Weight
MKS Type 1179 or 1559 MFCs; 179 or 558 MFMs
1.0% of Full Scale; 0.5% of Full Scale Corrected (N2)
Two Type 167A, one for the selected standard, one
for the Device Under Test
Inlet and outlet ports on front panel. 4 VCR®-M for
ranges to 20 slm, 8 VCR-M for higher ranges
110/220 VAC, 50/60 Hz, 3A
Metal wheeled caddy with extendible handle
85 lb. (38kg)
Ordering Code Example: PFTS2ADGLNCU
Type PFTS2A
PFTS2A Portable Flow Transfer Standard
Code
PFTS2A
Configuration
PFTS2A
Pressure Range Full Scale (XXXX)
10 sccm of N2 F.S.
20 sccm of N2 F.S.
50 sccm of N2 F.S.
100 sccm of N2 F.S.
200 sccm of N2 F.S.
500 sccm of N2 F.S.
1000 sccm of N2 F.S.
2000 sccm of N2 F.S.
5000 sccm of N2 F.S.
10000 sccm of N2 F.S.
20000 sccm of N2 F.S.
50 SLM of N2 F.S.
100 SLM of N2 F.S.
200 SLM of N2 F.S.
Vacant Channel
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
DGLN
Flow Device Type (Y)
Flow Controllers
Flow Meters
C
M
C
Input Power
Standard USA & Canada input power 110 VAC, 60 Hz
220 VAC, 50 Hz
U
F
U
Accessories
Dimensional Drawing —
Back Pressure Regulator Module: Used with the PFTS2A when calibrating rotameters — N400608-G1
Cables for connecting to device under test — contact Applications Engineering for appropriate cables.
Note: Unless otherwise specified,
dimensions are nominal values in inches
(mm referenced).
Global Headquarters
90 Industrial Way
Wilmington, MA 01887-4610
Tel: 978.284.4000
Tel: 800.227.8766 within U.S. only
Web: www.mksinst.com
Bulletin PFTS2A-9/03
© 2003 MKS Instruments, Inc.
All rights reserved.
Specifications are subject to change without notice.
Mass-Flo® is a registered trademark of MKS Instruments, Inc., Wilmington, MA.
VCR® is a registered trademark of Swagelok Marketing Co., Solon, OH.
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