
TABLE OF CONTENTS
1.
UNPACKING THE DFM 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................................................................................
2.2.1
Power Supply Connections........................................................................
2.2.2
Output Signals Connections.......................................................................
2.2.3
Output Communication Parameters and Connections................................
3.
PRINCIPLE OF OPERATION......................................................
4.
SPECIFICATIONS..................................................................
4.1
CE Compliance...........................................................................................
5.
OPERATING INSTRUCTIONS.....................................................
5.1
Preparation and Warm Up..........................................................................
5.2
Swamping Condition....................................................................................
5.3
Programming DFM using LCD and Keypad................................................
5.3.1
Changing Units of Measurement for Temperature & Pressure Reading.....
5.3.2
Monitoring DFM peripheries settings.........................................................
5.3.3
DFM Main Menu.........................................................................................
5.3.4
Gas Flow Engineering Units Settings..........................................................
5.3.5 Gas Table Settings......................................................................................
5.3.6
Totalizer Settings........................................................................................
5.3.7
Alarm Settings...........................................................................................
5.3.8
Relay Assignment Settings........................................................................
5.3.9
K Factors Settings.....................................................................................
5.3.10 Zero Calibration..........................................................................................
5.3.11 Flow Conditions Settings...........................................................................
5.3.12 LCD Backlit Energy-saving Setting............................................................
5.4
Flow, Temperature, Pressure Output Signals Configuration......................
6.
MAINTENANCE....................................................................
6.1
Introduction................................................................................................
6.2
Flow Path Cleaning....................................................................................
6.2.1
Restrictor Flow Element (RFE)..................................................................
6.2.2
DFM 26/27 Models....................................................................................
6.2.3
DFM 36/37/46/47 models..........................................................................
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12
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13
14
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24
24
26
27
27
28
28
29
29
29
30
Содержание DFM 26
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