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H-System – Isolated Barriers and Termination Boards
Technical Specifications
Conformity
General
• Isolated barriers with explosion protection, preferably Ex ia IIC/Class I, Div. 1,
international approvals
• EMV according to
• EN 61326-1
• EN 61326-3-2, only for devices with SIL rating, where the datasheet mentions
this standard.
If you operate the device with a DC supply voltage, you must ensure that the bridging
of the 20 ms voltage interruption is realized by the power supply.
• NAMUR NE 21
If you operate the device with a DC supply voltage, you must ensure that the bridging
of the 20 ms voltage interruption is realized by the power supply.
• RoHS, refer to declaration of conformity of the respective device
• LEDs according to NAMUR NE 44
• Software according to NAMUR NE 53
Digital Inputs and Outputs according to NAMUR
• IEC/EN 60947-5-6: Low voltage switch gear and control gear – part 5 and 6:
Control devices and switching elements – DC interface for proximity sensors
and switch amplifiers (NAMUR), 1999
Ambient Conditions
Ambient Temperature
• -20 °C to 60 °C (-4 °F to 140 °F), exceptions see datasheets
Storage Temperature
• -40 °C to 85 °C (-40 °F to 185 °F), exceptions see datasheets
Reference Conditions for Adjustment
• 20 °C (68 °F)
Relative Humidity
• max. 95 % without moisture condensation
Corrosive gas durability
• according to ISA-S71.04, group A, severity level G3 (harsh)
Altitude
• max. 2000 m
Vibration Resistance
• according to EN 60068-2-6, 10 Hz to 150 Hz, 1 g, high crossover frequency
Shock Resistance
• according to EN 60068-2-27, 15 g, 11 ms, half-sine
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