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Table of Contents

A. General 8

1. Hazard 9

2. Safety information 9

3. Scope of supply 9

B. Basic flow meter 10

1. Proper use 10

1.1 Application in explosion hazard areas 10

1.2 Technical data 11

1.3 Maximum pressure depending on temperature of the medium 11

1.4 Complete hose system 12

1.5 Pressure surges (water hammer) 12

1.6 Pressure drop 12

1.7 Accuracy of measurement and flow 13

1.8 Optimization of measurement accuracy by calibration 13

2. Installation 14

2.1 Connection for drum pump operation 14

2.2 Connection to the piping system – Flange connection 15

2.3 Valve connection 16

3. Maintenance and servicing 16

3.1 Cleaning the filter and check valve 16

3.2 Dismantling the basic flow meter 17

4. Repairs 17

C. Operating unit 18

1. Proper use 18

1.1 Technical data 18

1.2 Application in explosion hazard areas 19

1.2.1 Electrical data 20

2. Installation 21

2.1 Insert the batteries 21

2.2 Turning the operating unit 21

2.3 Separate installation of the operating unit 22

2.4 Hose installation of the operating unit 23

3. Operation 24

3.1 Manual mode 24

3.1.1 Resetting the part volume meter 24

3.1.2 Displaying totalizer 24

3.1.3 Displaying flow rate 24

3.1.4 Key lock in manual mode 25

Lutz ST User Manual

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