KROHNE H250 M40 EN - Manual (Page 65)

TECHNICAL DATA
8
65
H250 M40
www.krohne.com 11/2012 - 4000640702 MA H250 M40 R02 en
Cable glands
Limit switches
Current output ESK4
Cable gland Material Cable diameter
M 20x1.5 Standard PA 8...13 mm 0.315...0.512"
M20 x 1.5 Nickel-plated brass 10...14 mm 0.394...0.552"
Terminal connection 2.5 mm 2
Limit switches I7S23,5-N
SC3,5-N0
SJ3,5-SN 1 SJ3,5-S1N 1 SB3,5-E2 Reed
NAMUR (IEC60947-5-6) Yes Yes Yes no no
Type of connection 2-wire 2-wire 2-wire 3-wire 2-wire
Switching element
function
Normally
closed
Normally
closed
Normally
open
PNP NO
contact
NC SPST
Nominal voltage U
0
8,2 VDC 8,2 VDC 8,2 VDC 10...30 VDC max. 32 VDC
Pointer vane not detected ≥ 3 mA ≥3 mA ≤1 mA ≤ 0.3 VDC U
0
Pointer vane detected ≤ 1 mA ≤ 1 mA ≥ 3 mA U
B
- 3 VDC 0 VDC
Continuous current - - - max. 100 mA max. 100mA
No load current I
0
- - - ≤ 15 mA -
Operating cycles - - - - 100.000
1 safety oriented
Terminal connection 2.5 mm 2
Power supply 14...30 VDC
Min. power supply for HART ® 20 VDC at 250 Ohm load
Measuring signal 4.00...20.00 mA = 0...100% flow value in 2-wire technology
Power supply influence <0.1%
Dependence on external resistance <0.1%
Temperature influence 5 µA / K
Max. external resistance / load 650 Ohm at 30 VDC
Min. load for HART ® 250 Ohm
ESK4 HART ® configuration
Manufacturer name (code) KROHNE Messtechnik (69 = 45h)
Model name ESK4 (214 = 0xD6)
HART ® protocol revision 5.9
Device revision 1
Physical layer FSK
Device category Transmitter without galvanic isolation
MA_H250_M40_R02_en_640702_PRT.book Page 65 Wednesday, November 28, 2012 12:23 PM