Teledyne NALL User Manuals

Table of Contents

• GENERAL INFORMATION

  5
• FEATURES:

  5
• OPERATING PRINCIPLE

  6
• OPERATING PRINCIPLE

  6
• RECEIVING AND INSPECTION

  7
• INITIAL INSPECTION:

  7
• PACKING LIST:

  7
• DECIMAL POINT SETTING:

  7
• POWER SOURCE:

  7
• ELECTRICAL ZERO:

  7
• INDICATION OF FLOW:

  7
• INSTALLATION INSTRUCTIONS

  8
• TRANSDUCER

  8
• FILTERS:

  9
• CABLES

  9
• POWER SUPPLY:

  9
• USING THE FLOWMETER

  11
• WARM-UP TIME:

  11
• RESPONSE TIME:

  11
• MASS FLOW UNITS:

  11
• SPECIAL FACTORY CALIBRATIONS:

  11
• GAS CONVERSION FACTORS:

  11
• OUTPUT SIGNAL:

  12
• ACCURACY:

  13
• REPEATABILITY:

  13
• OVER-RANGE:

  13
• PRESSURE EFFECTS

  14
• STANDARD TRANSDUCERS:

  14
• LOW PRESSURE DROP TRANSDUCERS:

  14
• HIGH PRESSURE TRANSDUCERS (OPTIONAL):

  14
• TEMPERATURE EFFECTS

  15
• AMBIENT TEMPERATURES:

  15
• GAS TEMPERATURE

  15
• DIFFERENTIAL PRESSURE

  16
• TYPICAL PRESSURE DROPS

  16
• CHANGES IN DP WITH CHANGES IN LINE PRESSURE

  16
• DP INCREASE DUE TO FOULING OF THE TRANSDUCER:

  17
• CALIBRATION

  18
• CALIBRATION PROCEDURES

  18
• MAINTENANCE

  20
• TRANSDUCERS:

  20
• POWER SUPPLY:

  20
• ACCESSORIES

  21
• OPTIONS AND ACCESSORIES

  21
• DOUBLE POINT RELAY FLOWMETER/ALARM (DNALL-P):

  21
• TOTALIZERS (TNALL-P):

  21
• CHASSIS MODEL (NALL-C):

  22
• CURRENT CONVERTER (NALL-P/CC):

  22
• WARRANTY AND REPAIR

  23
• WARRANTY REPAIR POLICY

  23
• NON-WARRANTY REPAIR POLICY

  23