Teledyne HFC-303, HFC-307 User Manual
TELEDYNE
HASTINGS
INSTRUMENTS
INSTRUCTION MANUAL
HFM-301/305/306
FLOW METERS
HFC-303/307 FLOW
CONTROLLERS
ISO 9001
CERTIFIED
Manual Print History
The print history shown below lists the printing dates of all revisions and addenda created for this
manual. The revision level letter increases alphabetically as the manual undergoes subsequent updates.
Addenda, which are released between revisions, contain important change information that the user
should incorporate immediately into the manual. Addenda are numbered sequentially. When a new
revision is created, all addenda associated with the previous revision of the manual are incorporated into
the new revision of the manual. Each new revision includes a revised copy of this print history page.
Revision F (Document Number 152-082002)................................................................. August 2002
Revision G (Document Number 152-102002) .............................................................. October 2002
Revision H (Document Number 152-082005) ................................................................ August 2005
Revision J (Document Number 152-042006)...................................................................March 2006
Revision K (Document Number 152-062008) ....................................................................June 2008
Revision L (Document Number 152-082008)................................................................. August 2008
Revision M (Document Number 152-082009)................................................................ August 2009
Revision N (Document Number 152-102009) .............................................................. October 2009
Revision P (Document Number 152-082010)................................................................. August 2010
Visit www.teledyne-hi.com for WEEE disposal guidance.
CAUTION:
CAUTION:
CAUTION:
The ins truments des cribed in this manual are av ailable with multiple pin- outs .
Ensure that all electrical connections are correct.
The ins truments described in this manual are designed for INDOO R us e only.
The instruments described in this manual are designed for Class 2 installations
in accordance with IAW/IPC standards
Hastings Instruments reserves the right to change or modify the design of its equipment without
any obligation to provide notification of change or intent to change.
Manual: 152-082010 301-305-306_303-307 Series Page 2 of 35
Table of Contents
1. GENERAL INFORMATION............................................................................................................................................ 4
1.1. FEATURES.................................................................................................................................................................... 4
1.2. SPECIFICATIONS........................................................................................................................................................... 5
1.3. OPTIONAL 4-20 MA CURRENT OUTPUT .......................................................................................................................6
1.4. OTHER ACCESSORIES...................................................................................................................................................6
2. OPERATION...................................................................................................................................................................... 7
2.1. RECEIVING INSPECTION ............................................................................................................................................... 7
2.2. POWER REQUIREMENTS ...............................................................................................................................................7
2.3. OUTPUT SIGNAL...........................................................................................................................................................7
2.4. MECHANICAL CONNECTIONS....................................................................................................................................... 7
2.5. ELECTRICAL CONNECTIONS......................................................................................................................................... 8
2.6. 4 – 20 MA CONNECTIONS...........................................................................................................................................11
2.7. OPERATION................................................................................................................................................................ 12
2.8. RANGE CHANGING.....................................................................................................................................................16
2.9. OUTPUT FILTER ......................................................................................................................................................... 16
2.10. CONTROLLING OTHER PROCESS VARIABLES .............................................................................................................16
2.11. COMMAND INPUT.......................................................................................................................................................16
2.12. VALVE OVERRIDE CONTROL ..................................................................................................................................... 17
2.13. GAIN POTENTIOMETER .............................................................................................................................................. 17
2.14. TEMPERATURE COEFFICIENTS ................................................................................................................................... 18
3. THEORY AND FUNCTION........................................................................................................................................... 19
3.1. OVERALL FUNCTIONAL DESCRIPTION........................................................................................................................ 19
3.2. SENSOR DESCRIPTION................................................................................................................................................ 19
3.3. SENSOR THEORY........................................................................................................................................................ 19
3.4. BASE..........................................................................................................................................................................20
3.5. SHUNT DESCRIPTION..................................................................................................................................................21
3.6. SHUNT THEORY .........................................................................................................................................................21
3.7. CONTROL VALVE....................................................................................................................................................... 23
3.8. ELECTRONIC CIRCUITRY............................................................................................................................................ 24
3.9. INSTRUMENT PERFORMANCE .....................................................................................................................................24
4. MAINTENANCE..............................................................................................................................................................25
4.1. AUTHORIZED MAINTENANCE.....................................................................................................................................25
4.2. TROUBLESHOOTING ...................................................................................................................................................25
4.3. ADJUSTMENTS ........................................................................................................................................................... 26
4.4. END CAP REMOVAL................................................................................................................................................... 27
4.5. PRINTED CIRCUIT BOARD AND SENSOR REPLACEMENT............................................................................................. 28
5. OUTLINE DRAWINGS .................................................................................................................................................. 29
5.1. HFM-301...................................................................................................................................................................29
5.2. HFC-303 ................................................................................................................................................................... 29
5.3. HFM-305...................................................................................................................................................................30
5.4. HFM-306...................................................................................................................................................................30
5.5. HFC-307 ................................................................................................................................................................... 31
6. WARRANTY....................................................................................................................................................................32
6.1. WARRANTY REPAIR POLICY ......................................................................................................................................32
6.2. NON-WARRANTY REPAIR POLICY ............................................................................................................................. 32
7. APPENDIX ....................................................................................................................................................................... 33
7.1. APPENDIX 1- VOLUMETRIC VERSUS MASS FLOW.......................................................................................................33
7.2. APPENDIX 2 - GAS CONVERSION FACTORS ................................................................................................................ 34
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1. General Information
The Hastings 300 Series high range mass flow meters are designed to accurately measure mass flow at a
range between 25 slm and 10000 slm. The Hastings 300 Series high range mass flow controllers are
designed to accurately measure and control mass flow at a range between 25 slm and 2500 slm. These
instruments are intrinsically linear and have an accuracy of better than ±1% F.S. (full scale).
Hastings mass flow instruments do not require any periodic maintenance under normal operating
conditions with clean gases. No damage will occur from the use of moderate overpressures (~500
psi/3.45MPa) or overflows. Instruments are normally calibrated with the appropriate standard calibration
gas (nitrogen) then a correction factor is used to adjust the output for the intended gas. Calibrations for
other gases, such as oxygen, helium and argon, are available upon special order.
1.1. Features
• LINEAR BY DESIGN. The HFM-301/305/306 and HFC-303/307 series is intrinsically linear (no
linearization circuitry is employed). Should recalibration (a calibration standard is required) in the
field be desired, the customer needs to simply set the zero and span points. There will be no
appreciable linearity change of the instrument when the flowing gas is changed.
• NO FOLD OVER. The output signal is linear for very large over flows and is monotonically increasing
thereafter. The output signal will not come back on scale when flows an order of magnitude over
the full scale flow rate are measured. This means no false acceptable readings during leak testing.
• MODULAR SENSOR. The HFM-301/305/306 and HFC-303/307 series incorporates a
removable/replaceable sensor module. Field repairs to units can be achieved with a minimum of
production line downtime. Calibration is required.
• FAST SETTLING TIME. Changes in flow rate are detected in less than 500 milli-seconds when using
the standard factory PC board settings. Controller response is typically < 2 seconds.
• LOW TEMPERATURE DRIFT. The temperature coefficient of span for the HFM-301/HFC-303 series is
less than 0.092% of full scale/°C from 0-60°C. The temperature coefficient of zero is less than 0.085
% of reading/°C from 0-60°C.
• FIELD RANGEABLE. The HFM-305 and HFC-307 are available in ranges from 1000 slm to 2500 slm.
The HFM-301 and HFC-303 are available from 25-1000 slm. Each flow meter has a shunt and
transducer which can be exchanged in the field to select different ranges. Calibration, however, is
required.
• CURRENT LOOP. The 4-20 mA option gives the user the advantages of a current loop output to
minimize environmental noise pickup.
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1.2. Specifications
Accuracy..........................................................HFM-301/305 & HFC-303/307: ±1% full scale (F.S.)
...........................................................................................................HFM-306; ±3% full scale (F.S.)
Repeatability ................................................................................................................ ±0.07% of F.S.
Maximum pressure................................................................................................500 psi [3.45 MPa]
..............................................................................................................................300 psi (HFM-306)
Maximum pressure ................................................................................................1000 psi [6.9 MPa]
..................................................................... (with high pressure option on HFM-301/HFC303 only)
Pressure coefficient .................................................................................<0.026% of reading/psi (N2)
...............................................................................................See pressure section for pressure errors.
Operating temperature...........................................................0-60°C in non-condensing environment
Temperature coefficient (zero) .......................................................maximum ±0.085%/°C (0-60 0C)
Temperature coefficient (span) ................................................... maximum ±0.092%/°C (15-50 0C)
Leak integrity........................................................................................................... <1x10-9 std. cc/s.
Standard output................................................................................... 0-5 VDC (load min 2k Ohms)
Optional output ....................................................................................4 -20 mA. (load < 600 Ohms)
Power requirements ............................................................................±(15) VDC @ 55 mA (meters)
.....................................................................................................± (15) VDC @ 150 mA (controller)
................................................................................................................... Class 2 power 150VA max
Wetted materials ........................................................ 302/304 & 316 stainless steel, nickel 200, Viton
..................................................................................................................... Kalrez® (controller only)
Attitude sensitivity of zero .................................................. < ±0.25% F.S. for 90° without re-zeroing
..................................................................................................................{N2 at 19.7 psi (135 KPa)}
Attitude sensitivity of span...................................................................................< ±0.06% of reading
..................................................................................................................{N2 at 19.7 psi (135 KPa)}
Weight ...................................................................................................... HFM-301; 3.5 lbs. (1.6 kg)
................................................................................................................... HFC-303; 5.3 lbs. (2.4 kg)
.................................................................................................................. HFM-305; 8.0 lbs. (3.7 kg)
.............................................................................................................. HFM-306; 28.8 lbs. (13.2 kg)
............................................................................................................... HFC-307; 15.3 lbs. (6.94 kg)
Electrical connector ......................................................................................15 pin subminiature “D”
Fitting options..............................................HFM-301/HFC-303: 1/2” Swagelok®, 3/4” Swagelok®,
....................................................................................................................... 1/2”VCR®, 1/2”VCO®
................................................................... HFM-305/HFC-307: 1”Swagelok®, 1”VCR®, 1”VCO®
.......................................................... HFM-306: 1” Swagelok®, 1”VCR®, 1”VCO®, 2” Swagelok®
Manual: 152-082010 301-305-306_303-307 Series Page 5 of 35
1.3. Optional 4-20 mA Current Output
An option to the standard 0 - 5 VDC output is the 4 - 20 mA current output that is proportional to flow.
The 4 - 20 mA signal is produced from the 0 - 5 VDC output of the flow meter. The current loop output is
useful for remote applications where pickup noise could substantially affect the stability of the voltage
output.
The current loop signal replaces the voltage output on pin 6 of the “D” connector. The load must be less
than 600Ω. Failure to meet this condition will cause failure of the loop transmitter.
1.4. Other Accessories
1.4.1. Hastings Power supplies
Hastings Power Pod power supply/display units are available in one and four channel versions. They
convert 100, 115 or 230VAC to the ±15 VDC required to operate the flow meter and provide a digital
indication of the flow rate. Interface terminals for the retransmission of the flow meter analog output
signal are located on the rear of the panel.
The Power Pod 100 and 400 models are built with controllers in mind but will work with meters as well.
The Model 40 is for flow meters only. Throughout this manual, when reference is made to a power
supply, it is assumed the customer is using a Hastings power supply. Hastings PowerPod-100 and
PowerPod-400 power supplies are CE marked, but the Model 40 does not meet CE standards at this time.
The Model 40 and PowerPod-100 are not compatible with 4–20 mA analog signals. With the PowerPod
400, individual channels’ input signals, as well as their commands, become 4–20 mA compatible when
selected. The PowerPod-400 also sports a Totalizer feature. More information about the Power Pods can
be found on the Hastings web site. http://www.teledyne-hi.com/products/powerpod-series.htm
1.4.2. Interconnecting Cables
Cables are available from Hastings, in various lengths, to connect from the 15 pin "D" connector on the
back of the Power Pod directly to any of the 200 series and 300 series flow instruments (including digital
versions). More information about the available cables can be found in the Power Pod 400 bulletin on
the Hastings web site. http://www.teledyne-hi.com/pdfs/bulletins.htm
The 300 series flow instruments normally come with the standard “H” pin-out connector. This type of
connector is supplied on the Hastings AF-8-AM series cables with grey backshells (such as #65-149). “U”
pin-out versions of the 300 series instruments require a different cable to connect to the power supply.
This cable is identifiable by black back-shells and is available as Hastings Instrument (#65-791)
Manual: 152-082010 301-305-306_303-307 Series Page 6 of 35
2. Operation
This section contains the necessary steps to assist in getting a new flow meter/controller into operation
as quickly and easily as possible. Please read the following thoroughly before attempting to install the
instrument.
2.1. Receiving Inspection
Carefully unpack the Hastings 300 Series instrument and any accessories that have also been ordered.
Inspect for any obvious signs of damage to the shipment. Immediately advise the carrier who delivered
the shipment if any damage is suspected. Check each component shipped with the packing list. Insure
that all parts are present (i.e., flow meter, power supply, cables, etc.). Optional equipment or
accessories will be listed separately on the packing list. There may also be one or more OPT-options on
the packing list. These normally refer to special ranges or special gas calibrations. They may also refer
to special helium leak tests, or high pressure tests. In most cases, these are not separate parts, but
special options or modifications built into the flow meter.
1. Insure flow circuit mechanical connections are leak free.
2. Insure electrical connections are correct (See label).
3. Power up. (Allow 30 minutes to 1 hour warm-up for best accuracy.)
4. Note the flow signal decays toward zero.
5. Run ~20% flow (~ 1 VDC) through instrument for 5 minutes.
6. Insure zero flow; wait 2 minutes, then zero the instrument.
7. Instrument is ready for operation.
Quick Start
2.2. Power Requirements
The HFM-301/305/306 requires ±15 VDC @ 55 mA. The HFC-303/307 requires ±15VDC @ 150 mA for
proper operation. The supply voltage should be sufficiently regulated to no more than 50 mV ripple.
The supply voltage can vary from 14.0 to 16.0 VDC. Surge suppressors are recommended to prevent
power spikes reaching the instrument. The Hastings power supply described in Section Error! Reference
source not found. satisfies these power requirements.
2.3. Output Signal
The standard output of the flow meter is a 0 - 5 VDC signal proportional to the flow rate. In the Hastings
power supply the output is routed to the display and is also available at the terminals on the rear panel.
If a Hastings supply is not used, the output is available on pin 6 of the “D” connector. It is recommended
that the load resistance be no less that 2 kΩ. If the optional 4 - 20 mA output is used, the load
impedance must be less than 600 Ω.
2.4. Mechanical Connections
The flow meter may be mounted in any position as long as the direction of gas flow through the
instrument follows the arrow marked on the bottom of the flow meter case label. The preferred
orientation is with the inlet and outlet fittings in a horizontal plane. If operating with a dense gas (e.g.
Manual: 152-082010 301-305-306_303-307 Series Page 7 of 35
sulfur hexafluoride) or at high pressures (> 250 psig) the instrument must be installed horizontally.
When mounted in a different orientation the instrument should be re-zeroed at zero flow with the
system pressurized to the expected operating pressure.
One of the smallest of the internal passageways in the 300 Series is the diameter of the sensor tube,
which can be 0.026” (0.66 mm), 0.017” (0.43mm), or 0.014” (0.36mm), so the instrument requires
adequate filtering of the gas supply to prevent blockage or clogging of the tube.
The pressure regulator and the plumbing upstream must be of sufficient size to minimize changes in the
upstream pressure. When switching from full flow to zero flow, the inlet pressure of instrument should
rise to no more that 30% above the inlet pressure at full flow. In general, high capacity regulators and
large internal diameter plumbing help to make the system more stable. The pressure drop between the
regulator and the instrument due to line resistance should be minimized.
There are two threaded holes located on the bottom of the base that can be used to secure it to a
mounting bracket, if desired. Other holes for special mounting can be added if desired.
The optional inlet and outlet fittings for the 301/303 are 0.5”, 0.75” Swagelok, 0.5” VCR and 0.5” VCO
fittings. The O-rings for the end cap are Viton (optional Kalrez, Neoprene or Buna-N). The HFM-305 and
HFC-307 are provided with 1” Swagelok, VCR or VCO fittings. The HFM-306 can have 1” or 2” Swagelok
fittings. It is suggested that all connections be checked for leaks after installation. This can be done by
pressurizing the instrument (do not exceed pressure rating of the instrument) and applying a diluted
soap solution to the flow connections.
2.5. Electrical Connections
DANGER: Care must be taken to avoid high voltages that may be present when dealing
with power supplies.
If a power supply from Hastings Instruments is used, installation consists of connecting the 300 Series
cable from the “D” connector on the rear of the power supply to the “D” connector on the top of the
flow meter/controller. The “H” pin-out requires cable AF-8-AM (grey molded back shell). The “U” pinout requires cable # 65-791 (black molded back shell).
If a different power supply is used, follow the instructions below when connecting the flow meter and
refer to either table 2.1 or 2.2 for the applicable pin-out. The power supply used must be bipolar and
capable of providing ±15 VDC at 55 mA for flow meter applications and ±15 VDC at 150 mA for
controllers. These voltages must be referenced to a common ground. One of the “common” pins of the
Hastings instrument must be connected to the common terminal of the power supply. Case ground of
the instrument should be connected to the AC ground locally. The cable shield (if available) should be
connected to AC ground at the either the power supply end, or the instrument end of the cable, not at
both. Pin 6 is the output signal from the flow meter. The standard output will be 0 to 5 VDC, where 5
VDC is 100% of the rated or full scale flow.
The command (set point) input should be a 0 - 5 VDC signal (or 4 - 20mA if configured as such), and must
be free of spikes or other electrical noise, as these would generate false flow commands that the
controller would attempt to follow. The command signal should be referenced to signal common.
A valve override command is available to the flow controller. Connect the center pin of a single pole,
three-position switch (center off) to the override pin. Connect +15 VDC to one end of the three position
switch, and -15 VDC to the other end. The valve will be forced full open when +15 VDC is supplied to the
override pin, and full closed when -15 VDC is applied. When there is no connection to the pin (the
three-position switch is centered) the valve will be in auto control, and will obey the 0 - 5 VDC
commands supplied to command (set-point) input.
Figure 2-1 and Table 2-1 show the 300 Series “H” pin out.
Figure 2-2 and Table 2-2 show the 300 Series U” pin out.
Manual: 152-082010 301-305-306_303-307 Series Page 8 of 35
Figure 2-1
Table 2-1
“H” Pin-out
Pin #
1 Do not use
2 Do not use
3 Do not use
4 Do not use
5 Signal Common
6 Output 0-5 VDC (4-20mA)
7 Case Ground
8 Valve Override
9 -15 VDC
10 Do not use
11 +15 VDC
12 Signal Common
13 External Input
14 Set Point 0-5 VDC (4-20mA)
15 Do not use
Manual: 152-082010 301-305-306_303-307 Series Page 9 of 35
Figure 2-2
Table 2-2
“U” Pin-out
Pin #
1 Signal Common
2 Do not use
3 Do not use
4 +15 VDC
5
6 Output 0-5 VDC (4-20mA)
7 Signal Common
8 Case Ground
9 Valve Override
10
11 -15 VDC
12 External Input
13 Signal Common
14 Signal Common
15 Set Point 0-5 VDC (4-20mA)
Manual: 152-082010 301-305-306_303-307 Series Page 10 of 35
2.6. 4 – 20 mA Connections
15 VD
C
Supply
The 300 Series flow meters have a 4 - 20 mA current output option available as an alternative to the
standard 0 - 5 VDC output. This current output is useful for remote applications where noise pick-up
could substantially affect the stability of the voltage output. The 4 - 20 mA signal is produced from the 0
- 5 VDC output of the flow meter and replaces the voltage output on pin 6 of the “D” connector. The
current is sourced by the flow controller and the metering circuit must sink the current, such that the
current loop is completed through power supply common connections. The load must be less than 600
Ohms. Failure to meet this condition will cause failure of the loop transmitter.
The 300 Series flow controllers have a 4 – 20 mA current input option available as an alternative to the
standard 0 – 5 VDC command input. The controller sinks the input current through a 77 Ohm load to
power supply common.
−+
Power
+
−
−
Common
+15 VDC
Ground
Hastings Flow controller
PLC or Analog I/O Card
0−600 Ohms
Power In
Analog Out
Analog In
Analog Return
Pin 7
Pin 11
Pin 9
Pin 5,12
Setpoint Input, Pin 14
Analog Output, Pin 6
−
77 Ohms
Figure 2-3
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