Omega FMA1700A Manuel utilisateur

FMA1700A & FMA1800A

Mass Flowmeter

e-mail: [email protected]

For latest product manuals:

www.omegamanual.info

User’s Guide

Shop online at

omega.com

NORWALK, CT

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any

errors it contains, and reserves the right to alter specifications without notice.

omega.com [email protected]

Omega Engineering, Inc.

Toll-Free: 1-800-826-6342 (USA & Canada only)

Customer Service: 1-800-622-2378 (USA & Canada only)

Engineering Service: 1-800-872-9436 (USA & Canada only)

Tel: (203) 359-1660 Fax: (203) 359-7700

e-mail: [email protected]

For Other Locations Visit omega.com/worldwide

U.S.A.

Headquarters:

Servicing North America:

TABLE OF CONTENTS

1. UNPACKING THE FMA1700A/1800A MASS FLOW METER.....................

1.1 Inspect Package for External Damage.................................................

1.2 Unpack the Mass Flow Meter...............................................................

1.3 Returning Merchandise for Repair.......................................................

2. INSTALLATION........................................................................................

2.1 Primary Gas Connections.................................................................

2.2 Electrical Connections......................................................................

2.3.1 Remote LCD Readouts.....................................................................

2.3.2 Panel Mounting Readouts................................................................

3. PRINCIPLE OF OPERATION...................................................................

4. SPECIFICATIONS...................................................................................

4.1 CE Compliance.................................................................................

5. OPERATING INSTRUCTIONS..................................................................

5.1 Preparation and Warm Up..................................................................

5.2 Flow Signal Output Readings..........................................................

5.3 Swamping Condition.......................................................................

6. MAINTENANCE.........................................................................................

6.1 Introduction......................................................................................

6.2 Flow Path Cleaning...........................................................................

6.2.1 Restrictor Flow Element (RFE)........................................................

6.2.2 FMA1700A/1800A Series Max. Flow 10 L/min...................................

7. CALIBRATION PROCEDURES.................................................................

7.1 Flow Calibration...............................................................................

7.2 Calibration of FMA1700A/1800A Mass Flow Meters........................

7.2.1 Connections and Initial Warm Up.....................................................

7.2.2 ZERO Adjustment.............................................................................

7.2.3 SPAN Adjustment............................................................................

7.3 Linearity Adjustment..........................................................................

7.3.1 Connections and Initial Warm Up....................................................

7.3.2 ZERO Adjustment.............................................................................

7.3.3 25% Flow Adjustment (using R33 potentiometer)...........................

7.3.4 10% Flow Adjustment......................................................................

7.3.5 25% Flow Adjustment (using R52 potentiometer)..........................

7.3.6 50% Flow Adjustment....................................................................

7.3.7 75% Flow Adjustment....................................................................

7.3.8 100% Flow Adjustment....................................................................

7.4 LCD Display Scaling.........................................................................

7.4.1 Access LCD Display Circuit..............................................................

7.4.2 Adjust Scaling..................................................................................

7.4.3 Change Decimal Point......................................................................

8. TROUBLESHOOTING.............................................................................

8.1 Common Conditions........................................................................

8.2 Troubleshooting Guide.....................................................................

8.3 Technical Assistance.......................................................................

9. CALIBRATION CONVERSIONS FROM REFERENCE GASES.......................

APPENDIX 1 COMPONENT DIAGRAM.........................................................

APPENDIX 2 GAS FACTOR TABLE (“K” FACTORS)........................................

APPENDIX 3 DIMENSIONAL DRAWINGS......................................................

PARTS OF THE FLOW METER..............................................

APPENDIX 4 WARRANTY...........................................................................

1. UNPACKING THE FMA1700A/1800A

MASS FLOW METER

1.1 Inspect Package for External Damage

Remove the Packing List and verify that you have received all equipment. If you

have any questions about the shipment, please call the OMEGA7Customer

Service Department at 1-800-622-2378 or (203) 359-1660.

Your FMA1700A/1800A Mass Flow Meter was carefully packed in a sturdy card-

board carton, with anti-static cushioning materials to withstand shipping shock.

Upon receipt, inspect the package for possible external damage. In case of exter-

nal damage to the package contact the shipping company immediately.

1.2 Unpack the Mass Flow Meter

Open the carton carefully from the top and inspect for any sign of concealed ship-

ping damage. In addition to contacting the shipping carrier please forward a copy

of any damage report to OMEGA7directly.

When unpacking the instrument please make sure that you have all the items

indicated on the Packing List. Please report any shortages promptly.

1.3 Returning Merchandise for Repair

Please contact an OMEGA7 customer service representative and request a

Return Authorization Number (AR).

It is mandatory that any equipment returned for servicing be purged and neutral-

ized of any dangerous contents including but not limited to toxic, bacterially infec-

tious, corrosive or radioactive substances. No work shall be performed on a

returned product unless the customer submits a fully executed, signed SAFETY

CERTIFICATE. Please request form from the Service Manager.

2. INSTALLATION

2.1 Primary Gas Connections

Please note that the FMA1700A/1800A Mass Flow Meter will not operate with liq-

uids. Only clean gases are allowed to be introduced into the instrument. If gases

are contaminated they must be filtered to prevent the introduction of impediments

into the sensor.

CAUTION: Some of the IC devices used in the FMA1700A & FMA1800A are

Electro Static Discharge (ESD) sensitive and may be damaged by improper

handling. When wiring interface connector, adjusting or servicing the meter,

use of a grounded ESD protection wrist strap is required to prevent inadvertent

damage to the CMOS integral solid state circuitry. When 9 pin Interface

D-connector is not used do not remove factory installed ESD protection cover.



All FMA1700A & FMA1800A models require power supplies with nominal current

rating of at least 200 mA. The operating power input is supplied via the DC power

jack or the 9-pin “D” connector located at the side of the flow transducer enclosure.

On FMA1700A & FMA1800A's purchased without an LCD readout, a readout

panel meter, digital multimeter, or other equivalent device is required to observe

the flow signal.



CAUTION: IT IS THE USERS RESPONSIBILITY TO DETERMINE IF THE

INSTRUMENT IS APPROPRIATE FOR THEIR OXYGEN APPLICATION, AND FOR

SPECIFYING O2CLEANING SERVICE IF REQUIRED. OMEGA IS NOT LIABLE

FOR ANY DAMAGE OR PERSONAL INJURY, WHATSOEVER, RESULTING FROM

THE USE OF THIS INSTRUMENT FOR OXYGEN GAS.

Attitude sensitivity of the Mass Flow Meter is ±15. This means that the gas flow

path of the Flow Meter must be horizontal within those stated limits. Should there

be need for a different orientation of the meter, re-calibration may be necessary. It

is also preferable to install the FMA1700A/1800A transducer in a stable environ-

ment, free of frequent and sudden temperature changes, high moisture, and

drafts.

Prior to connecting gas lines inspect all parts of the piping system including fer-

rules and fittings for dust or other contaminant’s.

Be sure to observe the direction of gas flow as indicated by the arrow on the front

of the meter when connecting the gas system to be monitored.

Insert tubing into the compression fittings (except FMA1700A/1800A Series Max

Flow 1000 L/min) until the ends of the properly sized tubings home flush against

the shoulders of the fittings. Compression fittings are to be tightened according to

the manufacturer's instructions to one and one quarter turns. Avoid over tighten-

ing which will seriously damage the Restrictor Flow Elements (RFE's)!

Using a Helium Leak Detector or other equivalent method perform a thorough

leak test of the entire system. (All FMA1700A/1800A are checked prior to ship-

ment for leakage within stated limits. See specifications in this manual.)

2.2 Electrical Connections

CAUTION: Some of the IC devices used in the FMA1700A & FMA1800A are

Electro Static Discharge (ESD) sensitive and may be damaged by improper

handling. When wiring interface connector, adjusting or servicing the meter,

use of a grounded ESD protection wrist strap is required to prevent inadver

tent damage to the CMOS integral solid state circuitry. When 9 pin interface

D-connector is not used do not remove factory installed ESD protection cover.



CAUTION: WIRING THE FMA1700A & FMA1800A METER WITH THE POWER

ON MAY RESULT IN INTERNAL DAMAGE! PLEASE MAKE ALL WIRING

CONNECTIONS BEFORE SWITCHING ON THE POWER.



PIN FUNCTION

1Remote LCD display signal

20 to 5 VDC output indication

30 to 5 VDC common

4Power supply, positive

5Power supply, common

6Remote LCD display reference

7(unassigned)

84 to 20 mA output indication

self-powered (sourcing type,

non-isolated)

94 to 20 mA common (return)

FIGURE 2.a - 9-PIN “D” CONNECTOR PINOUTS FOR FMA1700A/1800A TRANSDUCER

The FMA1700A & FMA1800A flow meters have universal power input and can be

used with any power supply voltage between +12 and +26 Vdc.

CAUTION: BEFORE CONNECTING POWER SUPPLY CHECK YOUR METER

SERIAL NUMBER AND POWER SUPPLY REQUREMENTS LABEL LOCATED ON

THE FLOW METER BACK COVER. DO NOT CONNECT POWER SUPPLY WITH

VOLTAGE ABOVE 26 VDC. EXCEEDING SPECIFIED MAXIMUM POWER SUPPLY

VOLTAGE LIMIT MAY RESULT IN DEVICE PERMANENT DAMAGE.



IMPORTANT NOTES:

In general, “D” Connector numbering patterns are standardized. There are, how-

ever, some connectors with nonconforming patterns and the numbering sequence

on your mating connector may or may not coincide with the numbering sequence

shown in our pin configuration table above. It is imperative that you match the

appropriate wires in accordance with the correct sequence regardless of the par-

ticular numbers displayed on your mating connector.

Make sure power is OFF when connecting or disconnecting any cables in the

system.

When connecting power to the FMA1700A/1800A mass flow meter via the DC

power jack, do not connect any power supply to the 9-pin “D” Connector. The DC

power jack has a center positive polarity.

When battery use is required to power the FMA1700A/1800A, use only the

optional battery and accompanying charger available from OMEGA7.



CAUTION: Resettable fuse will not protect meter if power supply voltage

exceeds maximum voltage specified for particular model.



In order to operate flow meter within the specification the cable length for analog

0-5 Vdc output and remote LCD display may not exceed 9.5 feet (3 meters).

Use of the FMA1700A/1800A flow transducer in a manner other than that speci-

fied in this manual or in writing from OMEGA7, may impair the protection provid-

ed by the equipment.

2.3.1 Remote LCD Readouts

FMA1700A/1800A Mass Flow Meters are available with optional remote reading

LCD displays supplied with a three foot long wire to accommodate most applica-

tions. This configuration includes the upper block element which serves as the

LCD readout mounting. Special lengths of remote extension wiring (up to 9.5 feet

[3 meters]) are available on request.

2.3.2 Panel Mounting Readouts

Another option for the FMA1700A/1800A Mass Flow Meter is the Panel Mounting

Remote Readout. In this configuration the LCD readout is supplied with a three

foot long extension wire, and no aluminum housing around the LCD. The LCD

readout for panel mounting includes a bezel with two plastic screws which conve-

niently fit into a rectangular cut-out for panel mounting (see Figure 2.b).

The power input is protected by 300 mA M (medium time-lag) resettable fuse. If a

shorting condition or polarity reversal occurs, the fuse will cut power to the flow

transducer circuit. Disconnect the power to the unit, remove the faulty condition,

and reconnect the power. The fuse will reset once the faulty condition has been

removed.

FIGURE 2.b - CUTOUT DIMENSIONS FOR LCD PANEL MOUNTING

3. PRINCIPLE OF OPERATION

The stream of gas entering the Mass Flow transducer is split by shunting a small

portion of the flow through a capillary stainless steel sensor tube. The remainder

of the gas flows through the primary flow conduit.The geometry of the primary con-

duit and the sensor tube are designed to ensure laminar flow in each branch.

According to principles of fluid dynamics the flow rates of a gas in the two laminar

flow conduits are proportional to one another. Therefore, the flow rates measured

in the sensor tube are directly proportional to the total flow through the transducer.

In order to sense the flow in the sensor tube, heat flux is introduced at two sec-

tions of the sensor tube by means of precision wound heater-sensor coils. Heat is

transferred through the thin wall of the sensor tube to the gas flowing inside. As

gas flow takes place heat is carried by the gas stream from the upstream coil to

the downstream coil windings. The resultant temperature dependent resistance

differential is detected by the electronic control circuit. The measured gradient at

the sensor windings is linearly proportional to the instantaneous rate of flow tak-

ing place.

An output signal is generated that is a function of the amount of heat carried by

the gases to indicate mass-molecular based flow rates.

4. SPECIFICATIONS

FLOW MEDIUM: Please note that FMA1700A/1800A Series Max Flow 10, 50, 100, 200,

500 and 1000 L/min Mass Flow Meters are designed to work with clean gases only. Never

try to meter or control flow rates of liquids with any FMA1700A/1800A.

CALIBRATIONS: Performed at standard conditions [14.7 psia (1.01 bars) and 70 FF

(21.1 FC)] unless otherwise requested or stated.

ENVIRONMENTAL (per IEC 664): Installation Level II; Pollution Degree II.

ACCURACY: FMA1700A/1800A Series Max Flow 10, 50 and 100 L/min ±1.0% F.S.

FMA1700A/1800A Series Max Flow 200, 500 and 1000 L/min. ±1.5% F.S.

REPEATABILITY: ±0.25% of full scale.

TEMPERATURE COEFFICIENT: 0.15% of full scale/ FC.

PRESSURE COEFFICIENT: 0.01% of full scale/psi (0.07 bar).

RESPONSE TIME: 800 ms time constant; approximately 2 seconds to within ±2% of set

flow rate for 25% to 100% of full scale flow rate.

GAS PRESSURE: 1000 psig (69 bars) FMA1700A/1800A Series Max Flow 10, 50 and 100;

500 psig (34.5 bars) FMA1700A/1800A Series Max Flow 200, 500 and 1000 L/min.

Optimum pressure is 20 psig (1.4 bars).

GAS AND AMBIENT TEMPERATURE: 32 FF to 122 FF (0 FC to 50 FC).

14 FF to 122 FF (-10 FC to 50 FC) - Dry gases only.

RELATIVE GAS HUMIDITY: Up to 70%.

LEAK INTEGRITY: 1 x 10-9 sccs He max. to the outside environment.

ATTITUDE SENSITIVITY: No greater than ±15 degree rotation from horizontal. Standard cal-

ibration is in horizontal position.

OUTPUT SIGNALS: Linear 0-5 VDC (1000 Ωminimum load impedance) and 4-20 mA self-

powered sourcing type, non-isolated, (0-500 Ω loop resistance); 20 mV peak to peak max noise.

Contact Omega© for optional RS232 or RS485 interfaces.

TRANSDUCER INPUT POWER:

FMA1700A & FMA1800A models with universal power input between +12 and +25 VDC, 200

mA maximum;

Power input is protected by a 300 mA M (medium time-lag) resettable fuse, and a rectifier

diode for polarity protection.

Ce manuel convient aux modèles suivants

Table des matières

Autres manuels Omega Instrument de mesure

Omega

Omega FHG Series Manuel utilisateur

Omega

Omega TCL-3M165E2 Series Manuel utilisateur

Omega

Omega HHM-MA640 Manuel utilisateur

Omega

Omega SP-014 Manuel utilisateur

Omega

Omega PLATINUM Series Manuel utilisateur

Omega

Omega DFG207 Manuel utilisateur

Omega

Omega HHF1001A Manuel utilisateur

Omega

Omega DP18-P9 Manuel utilisateur

Omega

Omega FMG600 Series Manuel utilisateur

Omega

Omega M-4292/1006 Manuel utilisateur

Omega

Omega PRESSURE GAUGES DPG5000 Manuel utilisateur

Omega

Omega CL540A Manuel utilisateur

Omega

Omega PHB21 Manuel utilisateur

Omega

Omega DPi1701 Manuel utilisateur

Omega

Omega HHP8200 Series Manuel utilisateur

Omega

Omega FTB8000B Manuel utilisateur

Omega

Omega DP24-E Manuel utilisateur

Omega

Omega FTB380 Series Manuel utilisateur

Omega

Omega CMDP Series Manuel utilisateur

Omega

Omega I.Server MicroServer I.THX-M Manuel utilisateur

Omega

Omega APH2 Manuel utilisateur

Omega

Omega HHP360 Series Manuel utilisateur

Omega

Omega PHH-SD1 Manuel utilisateur

Omega

Omega MASS FLOW FMA-1900 Manuel utilisateur

Manuels Instrument de mesure populaires d'autres marques

Suaoki

Suaoki D40 Manuel utilisateur

Elster

Elster BK-G1.6 Manuel utilisateur

Endress+Hauser

Endress+Hauser Deltabar FMD71 Manuel

Duratool

Duratool D03128 Manuel utilisateur

Vega

Vega VEGAPULS 65 Manuel utilisateur

Tonghui

Tonghui TH2618B Manuel utilisateur

Tenmars

Tenmars TM-801 Manuel utilisateur

MSR

MSR 145 Manuel utilisateur

TPS

TPS WP-82 Manuel utilisateur

ELMETRON

ELMETRON CP-511 Manuel utilisateur

PCB Piezotronics

PCB Piezotronics 003C30 Manuel utilisateur

Tenma

Tenma 72-10465 Manuel utilisateur

Endress+Hauser

Endress+Hauser Proline Promag 50 Caractéristiques techniques

Siemens

Siemens SITRANS F Coriolis FCT030 Manuel de la liste des pièces

KLINGER

KLINGER CMF V Series Manuel utilisateur

EXFO

EXFO FTB-2 Manuel d'exploitation et d'entretien

Keysight

Keysight M8290A Manuel utilisateur

ADTEK

ADTEK MW-5 Manuel utilisateur