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31.7. Commissioning
WARNING
Commissioning must only be carried out by appropriately trained and qualified personnel.
Check that the supply rating on the meter nameplate corresponds to the system rating.
Removal of the meter cover seals will invalidate certification.
With the system de-energised, check the cable connections are secure and correct to the wiring diagram fitted under
the terminal cover.
Refit and seal the terminal cover. Energise and load the system.
Check that the display is cycling through the display sequence.
Check that the LED test indicator is illuminated or flashing.
Check Meter Main Seal, Terminal Cover Seal and Communications Hub/ blanking Cover Seal (If fitted) are free from
damage.
Carry out load checks as necessary.
32. MAINTENANCE
No maintenance is necessary during the meter's normal working life.
It is recommended that every time that a meter reader / inspector visits the property the seals are checked to ensure
they are the correct type and are still intact.
33. DISPOSAL AND RECYCLING
Liquid Crystal Display
Liquid crystals are toxic. If a display is damaged, avoid contact with the liquid. If the liquid makes contact with the skin
it must be washed off immediately with water. Seek medical advice.
Recycling Materials
The following meter materials are recyclable: polycarbonates, metals and printed circuit board
(See Safety Warning in Section 2).
Major plastic parts are marked with recycling information. On the disposal of a meter, every endeavour should be
made to comply with local environmental legislation regarding recovering materials and waste disposal.
Batteries
If the main cover is removed from the meter, then a Lithium manganese dioxide battery will be exposed.
This battery is completely safe under normal conditions. However, it must never be disassembled, heated above 100C,
incinerated, nor have the contents exposed to water.
Fire, explosion or severe burns may result if these instructions are disregarded.
In the interests of safety, environmental protection and possible legislation, Lithium batteries require careful disposal.
Before arranging for the disposal of these cells, users should satisfy themselves that the proposed means of disposal is
both safe and compliant with local legislation requirements.
Honeywell would like to draw the user's attention to the International Standard for Lithium Batteries - IEC 60086-4 which
gives further information about the handling, storage, transport and disposal of Lithium cells.
The user should contact Honeywell should difficulties arise in arranging proper disposal. They will if practical, help the
user identify safe disposal means.
© Honeywell - M450 001 1D - 23.05.2019
Operating & Maintenance Instructions
53
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