KROHNE BM 700 EN - Manual (Page 17)

BM 700 Installation and Operating Instructions Page 17
Error display during measurement (only for versions with local display)
When function 3.2.5 "ERROR. MSG." is set to YES, any error occurring during
measurement is indicated in the display and alternates with the measured value for
as long as the error is present.
In addition, all errors are stored. Press the keystroke combination
↵ ↑ → →
to get
into the error list. You can page through the list with key
→
, and acknowledge the
errors at the end - if required - by "QUIT YES". Press key
↵
twice to return to the
measuring mode.
Fatal errors (FATAL ERROR), that are detected when the device is started up, render
operation of the BM 700 impossible.
6 Safety information
Insulation rating
The insulation of type BM 700 level gauges is rated in conformity with VDE
0110/01.89, equivalent to IEC 664, and takes into account the following ratings:
•
overvoltage category for the power line circuit: III
•
overvoltage category for the output circuit: II
•
insulation contamination level: 2 (inside the device)
Disconnecting device
The type BM 700 level gauge does not feature any device for switching or dis-
connection.
Hazardous-duty systems
•
Types of protection in the BM 700 terminal compartment:
Increased Safety “e“ for signal output and power supply
•
Consult the relevant wiring and installation regulations, e.g. VDE 0165, before
mounting, dismantling or making electrical connections in a hazardous area.
•
Before making the electrical connection, make sure all cables leading into the
BM 700 Ex are disconnected from supply!
Temperature rating of connecting cables:
The temperature rating of connecting cables is dependent on the maximum tempe-
rature of the flange:
Version Max. flange
temperature Cable temperature
rating
Without high temperature
≤
100°C (212°F) 70°C (158°F)
distance piece > 100°C (212°F) 80°C (176°F)
With high temperature
≤
200°C (392°F) 70°C (158°F)
distance piece > 200°C (392°F) 80°C (176°F)