Flowserve NRS 2-40 - Manual (Page 22)

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The four indicator LEDs flash slowly.
High/low-level alarm
Fault: The max. admissible temperature in the electrode terminal box is exceeded.
Remedy: Insulate electrode flange to protect the equipment against heat radiation.
The four indicator LEDs flash rapidly.
High/low-level alarm
As soon as the temperature drops below the max. admissible limit the equipment
automatically returns to normal operation.
Fault: The CAN bus line between the nodes is interrupted.
Remedy: Check wiring and terminals. Restart system
Fault: Incorrect node ID(s).
Remedy: Set correct nodes ID(s), referring to section “Basic Adjustments” or “Annex”.
Disconnect the system from its power supply. After 5 sec. apply
power and restart system.
System malfunction 1
System malfunction 2
LEDs flash slowly
LEDs flash rapidly
System Malfunctions
– continued –