KROHNE DK 37 NEPSI Ex i - Manual (Page 4)

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DEVICE DESCRIPTION
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DK37/M8 - H250/M8
www.krohne.com 09/2013 - 4002616801 AD DK37 NEPSI Ex ia R01 en
Device description
2.1 Device description
Variable area flowmeters are used to measure and display volume flows of flammable and non-
flammable gases and liquids.
The M8E 1 indicator houses a signal output 4...20 mA with a bar graph indicator.
The M8M 2 indicator houses two separately adjustable electrical limit switches.
2.2 Description code
The safety description code * consists of the following elements:
* positions which are not needed are omitted (no blank positions)
1 Type series measuring unit DK37
2 M8 indicator type series
3 Design of indicator
M - Mechanical indicator
E - Electronic indicator with signal output 4...20 mA
4 Differential pressure regulators
RE - inlet pressure regulator
RA - outlet pressure regulator
5 Limit switch (only M8M indicator)
K1 - One limit switch
K2 - Two limit switches
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