CONTENTS
4.1 Safety instructions.......................................................................................................... 47
4.2 General notes ................................................................................................................. 47
4.5.1 Non-Ex devices ..................................................................................................................... 52
4.6 Ingress protection .......................................................................................................... 53
4.7 Networks ........................................................................................................................ 54
4.7.1 General information.............................................................................................................. 54
4.7.3 Multi-drop networks ............................................................................................................. 55
5.1 Start-up checklist........................................................................................................... 57
5.3 Operating concept .......................................................................................................... 57
5.4 Digital display screen ..................................................................................................... 58
5.4.1 Display screen layout............................................................................................................ 58
5.4.2 Keypad buttons ..................................................................................................................... 59
6.1 User modes .................................................................................................................... 63
6.2 Normal mode.................................................................................................................. 63
6.3 Program mode................................................................................................................ 67
6.3.1 General notes........................................................................................................................ 67
6.3.4 Keypad functions................................................................................................................... 71
6.3.6 Menu overview ...................................................................................................................... 75
6.3.7 Function description ............................................................................................................. 80
6.4.1 Standard setup...................................................................................................................... 99
6.4.4 Distance measurement ...................................................................................................... 105
6.4.5 Level measurement ............................................................................................................ 107
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www.honeywellprocess.com
RM640
34-VF-25-131 iss.1 GLO Feb 2019 US
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