
NS xx/xx-AM, HD-NS xx-AM
Contents
1 Introduction..................................................................................................................................................................................................................... 2
1.1 Intended Use.........................................................................................................................................................................................................2
1.2 Functionality......................................................................................................................................................................................................... 2
1.2.1 Liquid level monitoring ......................................................................................................................................................................2
1.3 Model key NS 10 ...................................................................................................................................................................................................2
1.4 Model key NS 25 ................................................................................................................................................................................................... 2
1.5 Model key NS 64...................................................................................................................................................................................................3
1.6 Model key NS 100................................................................................................................................................................................................. 3
1.7 Model key HD NS 250.......................................................................................................................................................................................... 3
1.8 Model key HD NS 360 ......................................................................................................................................................................................... 3
1.9 Pressure Equipment Directive information ................................................................................................................................................4
1.10 Scope of Delivery..................................................................................................................................................................................................4
2 Safety instructions......................................................................................................................................................................................................... 5
2.1 Important advice................................................................................................................................................................................................. 5
2.2 General hazard warnings .................................................................................................................................................................................6
3 Transport and storage .................................................................................................................................................................................................. 7
4 Setup and connection...................................................................................................................................................................................................8
4.1 Installation ............................................................................................................................................................................................................8
4.2 Electrical connections ........................................................................................................................................................................................9
4.3 Information on the correct operation of reed contacts in Bühler level switches.............................................................................9
4.4 Level Switch With Transducer Tube (4 – 20 mA Output or IO-Link)...................................................................................................10
4.5 Retrofitting the transducer tube..................................................................................................................................................................10
5 Operation and control ................................................................................................................................................................................................. 11
5.1 Initial operation..................................................................................................................................................................................................11
5.2 Bleeding ................................................................................................................................................................................................................11
6 Cleaning and Maintenance........................................................................................................................................................................................12
7 Service and repair..........................................................................................................................................................................................................13
8 Disposal........................................................................................................................................................................................................................... 14
9 Appendices......................................................................................................................................................................................................................15
9.1 Technical Data NS 10 ..-AM ..............................................................................................................................................................................15
9.2 Technical Data NS 25 ..-AM ............................................................................................................................................................................. 16
9.3 Technical Data NS 64 ..-AM..............................................................................................................................................................................17
9.4 Technical Data NS 100 ..-AM........................................................................................................................................................................... 18
9.5 Technical Data HD NS 250 ..-AM.................................................................................................................................................................... 19
9.6 Technical Data HD NS 360 ..-AM .................................................................................................................................................................. 20
9.7 Contacts for NS ..-AM........................................................................................................................................................................................ 21
9.8 BLT Technical Data ............................................................................................................................................................................................22
9.9 BLT Standard Pin Assignment .......................................................................................................................................................................22
10 Attached documents...................................................................................................................................................................................................23
iBühler Technologies GmbHBE200001 ◦ 08/2020