Teledyne HFM-60 User Manual

TELEDYNE HASTINGS

INSTRUCTION

INSTRUCTION MANUAL

MODEL HFM-60MODEL HFM-60

MODEL HFM-60

MODEL HFM-60MODEL HFM-60

FLOWMETERFLOWMETER

FLOWMETER

FLOWMETERFLOWMETER

INSTRUMENTS

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Manual Print HistoryManual Print History

Manual Print History

Manual Print HistoryManual 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 betw een 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 A (Document Number 143-042000) ................................................................April 2000

Revision B (Document Number 143-102002) .......................................................... October 2002

Revision C (Document Number 143-082005)............................................................ August 2005

Visit www .teledyne-hi.com for WEEE disposal guidance.

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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.

able of Contentsable of Contents

able of Contents

able of Contentsable of Contents

1.01.0

GENERAL INFORMAGENERAL INFORMA

1.0

GENERAL INFORMA

1.01.0

GENERAL INFORMAGENERAL INFORMA

1.1 Features ...............................................................................................................................5

1.2 Specifications .......................................................................................................................6

1.3 Optional 4-20 mA Current Output ......................................................................................7

1.4 Digital Display (900 tiltable) .................................................................................................7

1.5 W all Transformer Power Supply ...........................................................................................7

1.6 Other Accessories.................................................................................................................7

2.02.0

INSTINST

2.0

INST

2.02.0

INSTINST

2.1 Receiving Inspection ............................................................................................................9

2.2 Pow er Requirements.............................................................................................................9

2.3 Output Signal.......................................................................................................................9

2.4 Mechanical Connections.......................................................................................................9

2.5 Electrical Connections........................................................................................................10

2.6 Operation...........................................................................................................................11

ALLAALLA

ALLA

ALLAALLA

TIONTION

TION

TIONTION

TION

TIONTION

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3.03.0

THEORTHEOR

3.0

THEOR

3.03.0

THEORTHEOR

3.1 Overall Functional Description...........................................................................................13

3.2 Sensor................................................................................................................................13

3.3 Base ...................................................................................................................................14

3.4 Shunt .................................................................................................................................14

3.5 Electronic Circuitry ...........................................................................................................16

4.04.0

MAINTENANCEMAINTENANCE

4.0

MAINTENANCE

4.04.0

MAINTENANCEMAINTENANCE

4.1 Authorized Maintenance.....................................................................................................17

4.2 Troubleshooting.................................................................................................................17

4.3 Adjustments .......................................................................................................................18

4.4 End Cap Removal..............................................................................................................19

4.5 Printed Circuit Board Replacement ....................................................................................20

4.6 Sensor Replacement ...........................................................................................................20

5.05.0

5.0

5.05.0

5.1 W arranty Policy..................................................................................................................21

ARRANTY ARRANTY

ARRANTY

ARRANTY ARRANTY

Y OF OPERAY OF OPERA

Y OF OPERA

Y OF OPERAY OF OPERA

................................................................................................................................................................

................................................................................

................................................................................................................................................................

AND REPAND REP

AND REP

AND REPAND REP

TIONTION

TION

TIONTION

AIRAIR

AIR

AIRAIR

..........................................................................................................................

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1313

1717

2121

5.2 Non-W arranty Repair Policy ..............................................................................................21

6.06.0

DIADIA

6.0

6.06.0

DIA

DIADIA

GRAMS GRAMS

GRAMS

GRAMS GRAMS

AND DRAAND DRA

AND DRA

AND DRAAND DRA

WINGSWINGS

WINGS

WINGSWINGS

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2323

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The Hastings Mass Flowmeter, HFM-60 is designed to accurately measure mass flow up to 70 slpm with an accuracy of better than 3%. 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 (~150 psi) or overflows. Calibrations for other gases, such as oxygen, helium and argon, are available upon special order. 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.

1.1 Fea tures

• The HFM-60 is intrinsically linear. Should recalibration (a calibration standard is

• The HFM-60 incorporates a removable/replaceable main PC board/sensor module

SECTION 1

General Information

required) in the field be desired, the customer needs to simply set the zero and span points.

which virtually eliminates long down time due to clogging. Clogging is the most common cause of failure in the industry. The HFM-60 sensor is less likely to be

clogged due to the large internal diameter (0.020”).

• Each flowmeter has a shunt which can be quickly and easily exchanged in the field

to different ranges. Calibration, however, is required.

• The filters located upstream of the shunt and sensor eliminate most of the larger

particulates and impurities which tend to clog the sensor tube.

• The HFM-60 is available in ranges from 0-10 sccm to 0-60 slpm (air equivalent

flow). Special ranges are available upon request.

• The HFM-60 is constructed of 6061-T6 aluminum alloy. Buna-N is standard for the

O-rings and seals. Other elastomers are available upon request, e.g., Kalrez, Viton.

• The temperature coefficient of the HFM-60 is less than 0.1%/°C from 0-50°C.

• The 4-20 mA option gives the user the advantages of a current loop output to

minimize environmental noise pickup .

• The optional 0-90° tiltable digital display allows convenient real time indication of the

flow rate.

• The low pressure drop across this instrument is ideal for leak detection applications.

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1.2 Specifications

Accuracy.........................................................................................................................<±3% F.S.

Repeatability ................................................................................................. ±0.2% of F .S.(typical)

Maximum pressure ............................................................................................................. 150 psi.

Pressure coefficient ...................................................................................................0.01%/psi (N2)

Operating temperature............................................................................0-50°C in non-condensing

T empera ture coefficient (zero) ..................................................................... ±1000 ppm/°C, typical

±0.4% of F.S. (max.)

environment

(±2000 ppm/°C, max)

Temperature coefficient (span)....................................................................... ±500 ppm/°C, typical

(±1000 ppm/°C, max)

Leak integrity...........................................................................................................1x10

-9

std. cc/s.

Standard Flow ranges......................................................................10, 20, 50, 100, 200, 500 sccm.

1, 2, 5, 10, 20, 40, 70 slpm.

Standard Output .............................................................................................................. 0-5 VDC.

Optional Output.............................................................................................................. 4 -20 mA.

Po w er......................................................................+15 to +25VDC, ≤60 mA (0 - 5VDC output).

+15 to +25VDC, ≤80 mA (4-20 mA output).

W etted Materials ......................................................................6061 Al, 304L stainless steel, nylon,

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Buna N, Monel 400, Pb40Sn solder,

(Cu30Zn brass in 40 to 60 slpm units,

and epoxy in 10 to 200 sccm units)

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 flo wmeter. The current loop output is useful for remote applications where pickup noise could substantially affect the stability of the voltage output. The load impedance should be between 0 and 400 Ω.

1.4 Digital Display (0-90° Tiltable)

1.4.1 Local Display

For real time indication of the flow rate, a v ery useful option available is a 3.5 digit LCD digital display module mounted directly on top of the flowmeter case. The display can be rota ted 90° from the horizontal position to the fully vertical for better visibility. The LCD digits are large and clear and can be easily discerned at distances of 20 feet.

1.4.2 Remote Display

The tiltable display module may be removed from the flowmeter case and mounted at any distance away from the flowmeter body to permit conv enient observation. Standard lengths of 7', 15' and 25' cable (also special orders of any desired length) are available.

1.5 W all T ransformer Po wer Supply

The input voltage required for operation of the flowmeter is +15 to +25 VDC, at a maximum of 60 mA (80 mA for the 4-20 mA output option). A 115 V A C wall power supply rectified to +18.5 VDC is available as a power supply option. The wall power supply comes with a 6' length of 2 conductor cable which can be connected directly to the HFM-60 connector.

1.6 Other Accessories

1.6.1 Totalizer (A TR-1J)

The Hastings Flow Totalizer integrates the 0-5 VDC signal generated b y the flowmeter to give a total flow reading. Count rates from 0 to 999 counts per minute are selectable by internal setting.

1.6.2 Hastings Model 400/200/40/10 Pow er Supply

Hastings power supplies (other than the aforementioned wall transformer) are available in either one, two or four channel v ersions. They convert 115 or 230VAC to the +15 VDC required to operate the flowmeter. Interface terminals for the +15 VDC input and the 0-5 VDC linear output signal are located on the rear of the panel. Also, a cable can be supplied with the pow er supply that provides the +15 VDC on pin 11 of a “D” connector and the 0 - 5VDC output measurement on pin 6. Pins 5 and 12 are common and pin 7 is chassis ground. Throughout this manual, when reference is made to a power supply , it is assumed the customer is using a Hastings wall po wer supply or a Model 200/400/40/10 supply .

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This section contains the necessary steps to assist in getting a new flowmeter in operation as quickly and easily as possible. Please read the following thoroughly before attempting to install the instrument.

The customer should determine if their process gas is compatible withThe customer should determine if their process gas is compatible with

The customer should determine if their process gas is compatible with

The customer should determine if their process gas is compatible withThe customer should determine if their process gas is compatible with thethe

wetted materials of the flowmeter as specified in section 1.2. Somewetted materials of the flowmeter as specified in section 1.2. Some

the

wetted materials of the flowmeter as specified in section 1.2. Some

thethe

wetted materials of the flowmeter as specified in section 1.2. Somewetted materials of the flowmeter as specified in section 1.2. Some

corrosivecorrosive

corrosive

corrosivecorrosive O-rO-r

ing.ing.

O-r

ing.

O-rO-r

ing.ing.

time.time.

time.

time.time.

gases may damage the flowmeter materials and elastomergases may damage the flowmeter materials and elastomer

gases may damage the flowmeter materials and elastomer

gases may damage the flowmeter materials and elastomergases may damage the flowmeter materials and elastomer

This could result in incorThis could result in incor

This could result in incor

This could result in incorThis could result in incor

2.1 Receiving and Inspection

Carefully unpack the Hastings HFM-60 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., flowmeter, wall transformer 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, high pressure tests or special modifications such as high temperature O-ring materials. In most cases, these are not separate parts, but special options or modifications built into the flowmeter.

ARNINGARNING

ARNING

ARNINGARNING

rect florect flo

rect flo

rect florect flo

w measurement,w measurement,

w measurement,

w measurement,w measurement,

SECTION 2

Installation

or leakage o or leakage o

or leakage o

or leakage o or leakage o

erer

2.2 Power Requirements

The HFM-60 requires +15 to+25VDC, 60mA (0 - 5VDC output); 80mA (4 -20mA output). The supply voltage should be regulated such that there is no more than 50 mV ripple. Surge suppressors are recommended to prevent power spikes reaching the instrument. These po wer requirements are satisfied by the Hastings wall transformer or by the Hastings wall power supply described in Section 1.6.1 or 1.6.2.

2.3 Output Signal

The standard output of the flowmeter is a 0-5 VDC signal proportional to the flow rate. The input power is applied at pins 1 (+15 to+25 VDC) and 2 (ground). The output is obtained on pins 3 (0 to +5 VDC) and 4 (common) of the 4 pin connector . It is recommended tha t the load resistance be no less that 2 kΩ. When the 4-20 mA option (see Section 1.3) is selected the output is also on pins 3 and 4. The load impedance must be no greater than 400 Ω.

2.4 Mechanical Connections

The flowmeter 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 flowmeter case label. The preferred orientation is with the inlet and outlet fittings in a horizontal plane. Changing the mounting orientation requires re-zeroing of the instrument at zero flow .

The smallest of the internal passageways in the HFM-60 is the diameter of the sensor tube, which is 0.020 and the annular clearance for the 500 sccm shunt which is 0.009", so the instrument requires adequate filtering of the gas supply to prevent blockage or clogging of the tube. The screen diffusers assist in filtering to some extent where the filter mesh is as small as 0.010".

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