111
Special conditions to comply with the requirements of ATEX
GB
SUPREMATouch
Special Conditions for Safe Use in accordance with EU-type examination certificate
DMT 03 ATEX G 003 X
• When using 4-20 mA transmitters, pay particular attention to the following:
–
The specifications of the 4-20 mA interface
–
Behavior with currents less than 4 mA
–
Behavior with currents in excess of 20 mA
• Catalytic remote sensors shall be connected with 5-core cable when the 3-core cable length
allowed for proper cable control has been exceeded (see chapter 16 "Sensor Data".
• The system fault relays of all racks in the system shall be monitored.
• For each channel, the alarm with the highest significance for safety shall be configured as
Latching.
• Relay Outputs for safety-related switching operations shall be configured as
New Alarm
not
selected.
• Time delayed relays should not be used for safety related purposes. If their use is unavoidable,
the delay time shall be set to the minimum possible for the required operation. The maximum
possible rate of increase of gas concentration shall be taken into account when determining
the delay time.
• All controls, including digital inputs and inputs from communication interfaces shall be
protected against unauthorized or inadvertent interference or operation.
Содержание SUPREMATouch MCP 20
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