Device description, 8 electrical data – KROHNE H250 M10 ATEX II3D Ex t EN User Manual
Page 8
2
DEVICE DESCRIPTION
8
H250 M10
www.krohne.com
03/2011 - 4001348101- MA H250/M10-Ex-II3G-AD R01 en
For use in areas with flammable dust it should be noted that the indicated maximum surface
temperature of T65°C at an ambient temperature of 60°C / 140°F and a product temperature of
60°C / 140°F is valid without a dust coating. For higher product temperatures the maximum
surface temperature is determined by the product.
2.8 Electrical data
The insulation of the flowmeter is measured according to EN 61010-1:2001. The following
ratings are taken into account:
• Overvoltage category II
• Pollution degree 2 (inside device on printed circuit boards)
Circuit
Rated voltage
Nominal current
Optional switching outputs
NAMUR 8V DC
1mA - 3mA
Open-collector-PNP 24V DC ±
25%
1mA - 100mA
Current output 4-20 mA
24V DC ± 25%
4mA - 20mA
with HART communication
Reset input
9V DC - 30V DC
< 2mA
AD_H250_M10_II3D_R01_en_4001248101_PRT.book Page 8 Wednesday, March 30, 2011 11:44 AM
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