Teledyne NALL instruction manual Table of Contents

Page 3

Table of Contents

 

1.0

GENERAL INFORMATION

5

1.1

FEATURES:

5

2.0

OPERATING PRINCIPLE

6

2.1

OPERATING PRINCIPLE

6

3.0

RECEIVING AND INSPECTION

7

3.1

INITIAL INSPECTION:

7

3.2

PACKING LIST:

7

3.3

DECIMAL POINT SETTING:

7

3.4

POWER SOURCE:

7

3.5

ELECTRICAL ZERO:

7

3.6

INDICATION OF FLOW:

7

4.0

INSTALLATION INSTRUCTIONS

8

4.1

TRANSDUCER

8

4.2

FILTERS:

9

4.3

CABLES

9

4.4

POWER SUPPLY:

9

5.0

USING THE FLOWMETER

11

5.1

WARM-UPTIME:

11

5.2

RESPONSE TIME:

11

5.3

MASS FLOW UNITS:

11

5.4

SPECIAL FACTORY CALIBRATIONS:

11

5.5

GAS CONVERSION FACTORS:

11

5.6

OUTPUT SIGNAL:

12

5.7

ACCURACY:

13

5.8

REPEATABILITY:

13

5.9

OVER-RANGE:

13

6.0

PRESSURE EFFECTS

14

6.1

STANDARD TRANSDUCERS:

14

6.2

LOW PRESSURE DROP TRANSDUCERS:

14

6.3

HIGH PRESSURE TRANSDUCERS (OPTIONAL):

14

7.0

TEMPERATURE EFFECTS

15

7.1

AMBIENT TEMPERATURES:

15

7.2

GAS TEMPERATURE

15

8.0

DIFFERENTIAL PRESSURE

16

8.1

TYPICAL PRESSURE DROPS

16

8.2

CHANGES IN DP WITH CHANGES IN LINE PRESSURE

16

8.3

DP INCREASE DUE TO FOULING OF THE TRANSDUCER:

17

9.0

CALIBRATION

18

9.1

CALIBRATION PROCEDURES

18

10.0

MAINTENANCE

20

10.1

TRANSDUCERS:

20

10.2

POWER SUPPLY:

20

11.0

ACCESSORIES

21

11.1

OPTIONS AND ACCESSORIES

21

11.2

DOUBLE POINT RELAY FLOWMETER/ALARM (DNALL-P):

21

11.3

TOTALIZERS (TNALL-P):

21

11.4

CHASSIS MODEL (NALL-C):

22

11.5

CURRENT CONVERTER (NALL-P/CC):

22

Manual 111-082010_Nall Mass Flowmeters

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Contents Teledyne Hastings Manual Print History Table of Contents 12.0 General Information FeaturesOperating Principle Operating PrincipleReceiving and Inspection Transducer Installation InstructionsPower Supply FiltersCables Electrical Zero Check Using the Flowmeter Output Signal Flowmeter Factory Calibrated for a Special GasGas Mixtures Accuracy RepeatabilityOver-range High Pressure Transducers Optional Pressure EffectsStandard Transducers Low Pressure Drop TransducersGas Temperature Temperature EffectsAmbient Temperatures Transducer Power SupplyIncrease in Line Pressure Differential PressureTypical Pressure Drops Changes in DP with Changes in Line PressureDP Increase Due to Fouling of the Transducer Decrease in Line PressureCalibration Calibration ProceduresTransducer Damage to the Transducer MaintenanceTransducers Cleaning Power Supply TroubleshootingTotalizers TNALL-P Descriptions AccessoriesOptions and Accessories Double Point Relay Flowmeter/Alarm DNALL-PMaintenance Chassis Model NALL-CCurrent Converter NAll-P/CC Warranty and Repair Warranty Repair PolicyNon-Warranty Repair Policy