Chemtrac HydroAct HA4, Руководство пользователя

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2.3 Installation 13
Enclosure Material
ABS flame retardant
Seals
EPDM
HydroAct 4 Dimensions
1. 103mm
2. 309mm
3. 230mm
2.3 Installation
As with all instrumentation the installation and commissioning of this instrument is crucial
to its safe and effective operation. This instrument must only be used for its purpose as
outlined in this manual. It must be installed and commissioned in accordance with this
manual and by trained, qualified personnel.
2.3.1 Site Selection
Please choose a suitable location for the installation of the electronics. The choice of installation point
on any site is a compromise and is best undertaken by an experienced installation engineer. The
following is a list of the factors that need to be taken into consideration. This list is not intended as a
check-list, neither is it implied that the list is complete.
• Ensure that the mounting allows access to all serviceable parts.
• Try to mount the electronics in a position where they are not habitually hosed down in a cleaning
process.
• The electronics enclosure should be mounted away from sources of heat or direct sunlight.
• Consider the length of wiring runs when mounting the instrument.
• Try to keep the electronics away from substations, motors or other large EMI emitters.
• Consider whether the sample will be representative and well mixed.
• Consider sample line run times.
• Consider sample return points.
• In a plastic run, with a low conductivity liquid sample, consider earthing the sample.
• If the instrument is controlling a dosing pump, size the pump appropriately.