KROHNE H250 M40 ATEX II3G Ex nA EN - Manual (Page 14)

2
DEVICE DESCRIPTION
14
H250 M40
www.krohne.com 01/2012 - 4001485201- MA H250/M40-Ex-II3G-AD R01 en
Maximum permitted temperatures at reference point of indicator in °F
2.8 Electrical data
Design of
indicator Component Permitted temperature range at reference point T [°F] according to
temperature class
TK T6 T5 T4 ... T1
M40./../K. SC3,5-NO-Y -4 ... +149 -4 ... +176 -4 ... +194
SJ3,5-SN -4 ... +151 -4 ... +178 -4 ... +194
SJ3,5-S1N -4 ... +151 -4 ... +178 -4 ... +194
I7S23,5-N -40 ... +158 -40 ... +185 -40 ... +194
M40./../ESK4/K. SC3,5-NO-Y -4 ... +131 -4 ... +158 -4 ... +176
SJ3,5-SN -4 ... +131 -4 ... +158 -4 ... +176
SJ3,5-S1N -4 ... +131 -4 ... +158 -4 ... +176
I7S23,5-N -40 ... +131 -40 ... +158 -40 ... +176
M40./../ESK4 ESK4 -40 ... +131 -40 ... +158 -40 ... +176
M40./../ESK4-T ESK4 and I/O modul -40 ... +126 -40 ... +153 -40 ... +171
M40./../ESK4-FF ESK4 and ESK4-FF -40 ... +97 -40 ... +124 -40 ... +169
M40./../ESK4-PA ESK4 and ESK4-PA
Electrical equipment Rated voltage Nominal current
Limit switch K1 / K2 8 VDC ≤1 / ≥3 mA
Signal output ESK4 14 - 32 VDC 4...20mA with HART ® communication
Switching output ESK4-T OC output 8 - 32 VDC 1...100 mA
Switching output ESK4-T NAMUR output 8 VDC ≤1 / ≥3 mA
Signal input ESK4-T input 8 - 32 VDC ≤2 mA
ESK4-FF Foundation Fieldbus
transmitter 1
9 - 32 VDC 16 mA
ESK4-PA Profibus transmitter 2 9 - 32 VDC 16 mA
1 Further information and instructions for operation of the ESK4-FF transmitter are provided in separate supplementary
instructions.
2 Further information and instructions for operation of the ESK4-PA Profibus transmitter are provided in separate sup-
plementary instructions.
AD_H250_M40_II3G_R01_en_4001485201_PRT.book Page 14 Tuesday, January 24, 2012 8:46 AM