EN
14392029.02 08/2020 EN/DE
Operating instructions magnetostrictive level transmitter, models FLM-xAI, BLM-TAI (Ex)
3
Contents
Contents
1. General information
5
2. Design and function
5
2.1 Description . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Model overview . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Construction and principle of operation . . . . . . . . . . . . . . 7
2.4 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . 8
3. Safety 9
3.1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . 9
3.2 Intended use . . . . . . . . . . . . . . . . . . . . . . . 9
3.3 Improper use . . . . . . . . . . . . . . . . . . . . . . 10
3.4 Responsibility of the operator . . . . . . . . . . . . . . . . . 10
3.5 Personnel qualification . . . . . . . . . . . . . . . . . . . 11
3.6 Personal protective equipment . . . . . . . . . . . . . . . . 11
3.7 Labelling, safety marks . . . . . . . . . . . . . . . . . . . 12
3.8 Ex marking . . . . . . . . . . . . . . . . . . . . . . . 12
4. Transport, packaging and storage
13
4.1 Transport. . . . . . . . . . . . . . . . . . . . . . . . 13
4.2 Packaging and storage . . . . . . . . . . . . . . . . . . . 13
5. Commissioning, operation
14
5.1 Mounting. . . . . . . . . . . . . . . . . . . . . . . . 14
5.1.1 “Screw-in body” version . . . . . . . . . . . . . . . . . 16
5.1.2 “Flange” version . . . . . . . . . . . . . . . . . . . 17
5.1.3 “Mounting on bypass” version. . . . . . . . . . . . . . . 17
5.2 Electrical connection. . . . . . . . . . . . . . . . . . . . 19
5.2.1 Connection diagram (Ex) . . . . . . . . . . . . . . . . 19
5.2.2 Cable length . . . . . . . . . . . . . . . . . . . . 20
5.2.3 Wiring with cable gland . . . . . . . . . . . . . . . . . 21
5.2.4 Wiring with M12 connector. . . . . . . . . . . . . . . . 22
5.3 Adjustment . . . . . . . . . . . . . . . . . . . . . . . 24
5.3.1 Measuring span on the level transmitter . . . . . . . . . . . 24
5.3.2 Current supply in error mode . . . . . . . . . . . . . . . 25
6. Safety-related characteristic values
26
7. Faults 28