Endress+Hauser Prothermo NMT81 - Table of Contents

Prothermo NMT81 Table of contents
Endress+Hauser 3
Table of contents
1 About this document .............................................................. 4
1.1 Document conventions .................................................................. 4
1.2 Documentation ........................................................................ 6
1.3 Registered trademarks .................................................................. 7
2 Basic safety instructions .......................................................... 7
2.1 Requirements for the personnel ............................................................ 7
2.2 Intended use .......................................................................... 7
2.3 Workplace safety ...................................................................... 7
2.4 Operational safety ......................................................................8
2.5 Product safety ......................................................................... 8
3 Product description ............................................................... 8
3.1 Product design ........................................................................ 8
4 Incoming acceptance and product identification ................................. 10
4.1 Incoming acceptance .................................................................. 10
4.2 Product identification .................................................................. 10
4.3 Manufacturer contact address ............................................................ 11
4.4 Storage and transport .................................................................. 12
5 Installation ...................................................................... 13
5.1 Converter ........................................................................... 13
5.2 Option 1: Converter with universal coupling .................................................. 13
5.3 Option 2: Converter with M20 mounting thread ............................................... 15
5.4 Converter + average temperature probe version ............................................... 16
5.5 Converter + average temperature probe + water bottom probe .................................... 18
5.6 Flanges ............................................................................ 20
5.7 Element No. 1 position ................................................................. 21
5.8 WB probe design ..................................................................... 23
5.9 Pre-installation of NMT81 .............................................................. 26
5.10 Installation procedure .................................................................. 27
5.11 Mounting NMT81 on a cone roof tank ...................................................... 32
5.12 Mounting NMT81 on a floating roof tank ................................................... 39
5.13 Mounting NMT81 on a pressurized tank .................................................... 45
6 Electrical connection ............................................................ 47
6.1 NMT81 (Ex ia) intrinsically safe connection .................................................. 47
6.2 NMT81 transmitter and element connection ................................................. 49
6.3 NMS8x/NMR8x/NRF81 (Ex d [ia]) intrinsically safe connection ................................... 49
6.4 NMS5 (Ex d [ia]) intrinsically safe connection ................................................ 51
6.5 NRF590 terminals .................................................................... 52
7 Commissioning .................................................................. 53
7.1 Terms related to temperature measurement ................................................. 53
7.2 Initial setting ........................................................................ 54
7.3 Initial screen ......................................................................... 54
7.4 Guidance ........................................................................... 57