KROHNE DW 181-182-183-184 EN User Manual
Page 2
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Installation and operating instructions DW 181 - 184
Table of contents
General advice on safety………………………………………………………………………….. 4
Standards / Approvals…………………………………………………………………………….. 4
Ex safety instructions……………………………………………………………………………… 4
Handling……………………………………………………………………………………………… 4
Product liability and warranty……………………………………………………………………. 5
Items included with supply……………………………………………………………………….. 5
Documentation supplied………………………………………………………………………….. 5
Official approvals and certificates………………………………………………………………. 5
Principle components……………………………………………………………………………... 6
Equipment labels…………………………………………………………………………………… 7
Type code……………………………………………………………………………………………. 8
1
Mechanical Installation……………………………………………………………………… 9
1.1
Positioning the flow switch……………………………………………………………………. 9
1.2
Installation in hazardous areas (Ex applications)………………………………………….. 9
1.3
Connecting the DW 18 to the pipe…………………………………………………………… 9
1.4
Flow direction…………………………………………………………………………………... 9
2
Electrical Connections…………………………………………………………………….. 10
3
Commissioning……………………………………………………………………………… 11
3.1
General notes………………………………………………………………………………… 11
3.2
Adjusting the limit switches - standard and EEx ia flow switch versions………………. 11
3.2.1
Type G indicator……………………………………………………………………………. 11
3.2.2
Type A indicator…………………………………………………………………………..... 12
3.3
Adjusting the limit switches - EEx d flow switch version…………………………………. 12
3.3.1
MS 12/BRX switch…………………………………………………………………………. 12
4
Display………………………………………………………………………………………... 13
4.1
Local Flow indication………………………………………………………………………… 13
4.2
Limit Switches………………………………………………………………………………… 13
4.3
EEx d version…………………………………………………………………………………. 14
4.4
High-temperature version (KROHNE temperature class H3, non-EEx)………………... 15
4.5
Tropical version (non-EEx)………………………………………………………………….. 15