SPX FLOW_CU4.. AS-interface_IECEx_Zone 2_GB-1_062023_for D4. Valves.indd
GB
Control Unit
CU4** AS-interface IECEx Zone 2 Gas for D4* Valves IECEx Zone 2 Gas
Instruction manual: GB - rev. 1
10
SPX FLOW
2. SafetyInstructions
2.4. Weldinginstructions
It is generally recommended to avoid welding work in process
installations in which control units are installed and connected.
If welding is nonetheless required, earthing of the electrical
devices in the welding area is a necessity.
2.5. Persons
- Installation and maintenance work may only be carried out by
qualied personnel and by means of appropriate tools.
- The qualied personnel must get a special training with regard to
possible risks and must know and observe the safety instructions
indicated in the instruction manual.
- Work at the electrical installation may only be carried out by
personnel specialised in electrics!
2.6. Warranty
This document does not contain any warranty acceptance.
We refer to our general terms of sale and delivery.
Prerequisite for a guarantee is the correct use of the unit in
compliance with the specied conditions of application
Attention! This warranty only applies to the control unit.
No liability will be accepted for consequential
damage of any kind that could arise from the failure
or malfunction of the device
2.7 ImportantSafetyInstructionsforAS-interfacenetworks
- Always use protective modules against excess voltage in the AS-
interface installation.
- Grounding
For the AS-interface network a potential-free operation must be
guaranteed. Use isolation monitoring modules to provide for proper
grounding conditions.
Grounding of the bus cable or connected components or their
charging with external voltage leads to malfunction in the bus
system.
!
!