MR MESSKO MT-ST Compact RM - Page 4

Table of contents
4 BA5831400-00 EN
4.2 Suitability, structure and production............................................... 26
4.3 Markings ........................................................................................ 26
4.4 Transportation, receipt and handling of shipments........................ 26
4.5 Storage of shipments..................................................................... 28
4.6 Further transport ............................................................................ 28
5 Installation and commissioning........................................29
5.1 Transporting in the installed state.................................................. 30
5.2 Checking measured temperature values ....................................... 30
5.3 Mounting the pointer thermometer................................................. 31
5.3.1 Attaching the pointer thermometer to the transformer ............................... 31
5.3.2 Securing the capillary line .......................................................................... 35
5.3.3 Inserting the temperature sensor ............................................................... 35
5.3.4 Inserting the No.7 RM temperature sensor ............................................... 38
5.3.5 Attaching the step protection (optional)...................................................... 39
5.4 Electrical connection...................................................................... 40
5.4.1 Preparation................................................................................................. 40
5.4.2 Removing the bayonet seal ring................................................................. 44
5.4.3 Opening the cover plate ............................................................................. 45
5.4.4 Preparing the cables .................................................................................. 45
5.4.5 Protective conductor connection ................................................................ 53
5.4.6 Connecting the micro-switches .................................................................. 55
5.4.7 Connecting the analog sensor (optional/TT version) ................................. 59
5.4.8 Connecting cable glands/NPT adapters..................................................... 60
5.5 Checking micro-switches ............................................................... 61
5.5.1 Micro-switch to the right of the pointer ....................................................... 61
5.5.2 Micro-switch to the left of the pointer ......................................................... 62
5.6 Setting temperature gradients (winding temperature) ................... 64
5.6.1 Gradient setting by heating current ............................................................ 64
5.6.2 Gradient setting by resistance value .......................................................... 68