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2. The controller is not intended to be fitted outdoors in direct sunlight or where power washing,
rain or other liquid ingress, or chemical corrosion, may occur. The controller may be further
installed inside a control panel or other protective housing if required.
3. The maximum operating temperatures must be taken into consideration. Adequate spacing
with an air gap should be provided along with ventilation or cooling where necessary. To get
the best performance do not install in environments with large temperature swings.
4. The product should be protected against mechanical impact.
2.2 Cleaning and maintenance
1. Cleaning is not usually required but if necessary the power should be disconnected and the
outer enclosure lid cleaned with a damp cloth and mild detergent. Check any cleaning agents
are suitable for the enclosure material before use. Ensure the product is completely drybefore
reapplying the power.
2. Maintenance is generally not required but visual inspection and calibration check can be
performed in-line with the sites maintenance plan if required.
2.3 Electrical connections –Terminal block descriptions
1. The electrical installation should comply with the relevant regulations for the application,
environment and location it is being installed. Electrical cables should be selected to meet
both the application and product requirements. A 3A max fuse is recommended for the power
supply to the product, and up to 4A max for the relay contacts. See the product datasheet
technical specifications.
2. This product requires a protective earth conductor if it is being powered from ac
mains (hazardous voltage) and/or switching hazardous voltages through the relay contacts.
3. The user connections are only accessible when the products lower trim is removed
(Important: 2 lowest screws only, do not remove the upper trim). Before removing the trim
turn OFF the power to the product and relay contacts, only re-apply power after the trim has
been refitted.
The user connections are all plug in types. All wiring should be terminated and connections checked
before power is applied to the product. It is recommended that cable identifiers are attached to the
cables that reference their function or termination. To reduce noise interference it is important to
