CONTENTS
2 www.hawkmeasure.com 11/2021 - Senator S24x Radar IECEx v2.00 en
Senator S24x
1 General safety information 4
1.1 Scope of the document..................................................................................................... 4
1.2 Device description ............................................................................................................ 4
1.3 Standards and approvals.................................................................................................. 4
1.4 Equipment protection levels (EPL)................................................................................... 5
1.4.1 Ex ia-approved devices ........................................................................................................... 5
1.4.2 Ex db ia- and Ex ia tb-approved devices................................................................................. 6
1.4.3 Ex ic devices ............................................................................................................................ 7
1.5 Nameplate ........................................................................................................................ 9
2 Installation 10
2.1 Special conditions........................................................................................................... 10
2.2 Precautions..................................................................................................................... 10
2.2.1 General notes........................................................................................................................ 10
2.2.2 Electrostatic discharge......................................................................................................... 10
2.2.3 Optional purging system....................................................................................................... 11
2.2.4 Optional heating/cooling system .......................................................................................... 13
2.3 Ambient and process connection temperatures ........................................................... 14
2.3.1 General notes........................................................................................................................ 14
2.3.2 Senator S24L Radar and Senator S24S Radar ..................................................................... 15
2.3.3 Senator S24C Radar.............................................................................................................. 16
3 Electrical connections 17
3.1 General notes ................................................................................................................. 17
3.2 Terminal compartment .................................................................................................. 17
3.2.1 How to open the terminal compartment .............................................................................. 17
3.2.2 How to close the terminal compartment ............................................................................. 18
3.3 Terminal tightening capacity.......................................................................................... 19
3.4 Equipotential bonding system........................................................................................ 19
3.5 Ex ia and Ex ic equipment............................................................................................... 20
3.5.1 How to connect the electrical cables ................................................................................... 20
3.5.2 Maximum intrinsically safe values for the electrical circuit................................................ 20
3.5.3 Supply voltage....................................................................................................................... 20
3.6 Ex db ia / Ex ia tb equipment.......................................................................................... 21
3.6.1 General notes........................................................................................................................ 21
3.6.2 How to connect the electrical cables ................................................................................... 21
3.6.3 Supply voltage....................................................................................................................... 22
3.6.4 Maximum voltage for the electrical circuit .......................................................................... 23
4 Start-up 24
5 Service 25
5.1 Periodic maintenance..................................................................................................... 25
5.2 Repairs............................................................................................................................ 25
5.3 Cleaning.......................................................................................................................... 25