MC
15
Safety installations according to IEC 61010-2-010:
Excess temperature protection adjustable from 0 °C ... 230 °C
Low liquid level protection float switch
Classification according to DIN 12876-1 class III
Supplementary safety installations
Early warning system for low level float switch
High temperature warning function optical + audible (in intervals)
Low temperature warning function optical + audible (in intervals)
Supervision of working sensor plausibility control
Reciprocal sensor monitoring between
working and safety sensors difference >25 °C
Alarm message optical + audible (permanent)
Warning message optical + audible (in intervals)
Environmental conditions according to IEC 61 010-1:
Use only indoor.
Altitude up to 2000 m - normal zero.
Ambient temperature: +5 ... +40 °C (for storage and transportation)
Air humidity:
Max. rel. humidity 80 % for temperatures up to +31 °C,
linear decrease down to 50 % relative humidity at a temperature of +40 °C
Protection class according to IEC 60 529 IP21
Power supply: corresponds to Class I; according to VDE 0106 T1
not for use in explosive atmosphere
Max. mains fluctuations of ±10 % are permissible.
Overvoltage category II
Pollution degree 2
Standards for interference resistance EN 61326: 1997 + A1: 1998 + A2: 2001
Emitted interferences
The unit adheres to the threshold values for emitted interferences
according to table 3.
Interference resistance
The unit conforms to the requirements according to table B.1.
Only for water-cooled models:
Cooling water pressure (IN / OUT ) max. 6 bar
Difference pressure (IN - OUT ) 3.5 to 6 bar
Cooling water temperature <20 °C
Quality of cooling water:
pH at 25 °C 7 to 8.5
Suspended matter <30 mg/l
Size of suspended matter max. 0.1 mm
Growth of algae not permissible
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