69A – Close to SensorsB – At Eye-level LocationC – Avoid VibrationSensorsKeep to minimumdistanceA – Within Temperature LimitsB – Within Humidity LimitsD – Use Screened CableC – Environmental Limits50°CMax.(40°C withLS120MediaOption)0°CMin.0 to 95% RHIP66 / NEMA 4X frontIP40 rear (with extension)IP20 rear (without extension)+Fig. 5.1 General RequirementsCaution. Select a location away fromstrong electrical and magnetic fields. If this is notpossible, particularly in applications where mobilecommunications equipment is expected to be used,screened cables within earthed metal conduit mustbe used.Fig. 5.2 Environmental Limits5 INSTALLATIONEC Directive 89/336/EECIn order to meet the requirements of EC Directive 89/336/EEC for EMC regulations, this product must not be used ina non-industrial environment.Warning. Before making any connections, ensurethat the power supply, any powered control circuits and highcommon mode voltages connected to the instrument areswitched off.5.1 Siting – Figs. 5.1 and 5.2