Heinrichs Messtechnik GmbH
Page 2 of 31
Ex-Supplement operating manual
UMC4 with TM/TMU/TME/TMR/TM-SH
CONTENTS
INTRODUCTION ............................................................................................................................................... 4
I
Shipping and storage; product inspection ............................................................................................................................ 4
II
Warranty ......................................................................................................................................................................................... 4
III
Validity of this operating manual ............................................................................................................................................ 4
IV
Repairs and hazardous materials ........................................................................................................................................... 4
1.
STEPS PRIOR TO OPERATION ......................................................................................................... 5
1.1
Installation, mounting, commissioning and maintenance .............................................................................................. 5
1.2
Hazard warnings .......................................................................................................................................................................... 6
1.3
Proper use of the device ............................................................................................................................................................ 6
2.
IDENTIFICATION .................................................................................................................................. 7
3.
GENERAL INFORMATION ABOUT EXPLOSION PROTECTION ................................................. 8
4.
CORIOLIS MASS FLOW METER ....................................................................................................... 9
4.1
Description of the TM, TME, TMU and TMR sensors ........................................................................................................ 9
4.2
Device identification .................................................................................................................................................................... 9
4.3
Mounting ...................................................................................................................................................................................... 10
4.3.1
Thermally insulated sensor ....................................................................................................................................... 10
4.3.2
Heated sensor ............................................................................................................................................................... 10
4.3.3
Connection sensor
–
transmitter ............................................................................................................................ 10
4.3.3.1
Sensor Cable Pin Assignment ......................................................................................................................... 11
4.3.3.2
Cable Parameters ............................................................................................................................................... 11
4.3.3.3
Equipotential bonding ....................................................................................................................................... 11
4.4
EC Type-Examination Certificate for the sensors ............................................................................................................ 12
4.4.1
Sensor Parameters ...................................................................................................................................................... 12
4.4.2
Ambient temperature range Ta ............................................................................................................................... 13
4.4.2.1
Conditions for safe operation .......................................................................................................................... 14
4.5
Description of the UMC4 transmitter .................................................................................................................................. 14
4.5.1
Device identification .................................................................................................................................................... 14
4.5.2
Ignition category of the transmitter ....................................................................................................................... 14
4.5.3
Connecting cables ........................................................................................................................................................ 15
4.5.3.1
Sensor circuits ..................................................................................................................................................... 15
4.5.3.2
Electrical connection of power and signal circuits .................................................................................... 15
4.5.3.3
Cable and conduit entries ................................................................................................................................. 16
4.5.3.4
Equipotential bonding ....................................................................................................................................... 16
4.5.4
Parameters for the UMC4 transmitter .................................................................................................................. 16
4.5.4.1
Power circuit (terminals L, N and PE) ............................................................................................................ 16
4.5.4.2
Passive non-intrinsically safe circuits .......................................................................................................... 16
4.5.4.3
Sensor circuits type of protection Ex ia II .................................................................................................... 17
4.5.4.4
Signal output circuits with Ex ia II type of protection .............................................................................. 18
