9. However, line with any local quality assurance procedures, highly recommended that they are calibration checked every months.
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PP307
. This ensures that the instrument operates with accuracy and reliability. Where environmental accessories are utilised, the services provided them must comply with the recommendations detailed Land publication PP310.
9.1 Maintenance
Although thermometers require regular maintenance programme, essential that they are kept clean and free from contaminants all times. Particular attention lens cleanliness must, ensure accurate thermometer operation.2 Servicing
S thermometers not incorporate user serviceable parts, therefore the unlikely event instrument malfunction, instrument requiring servicing calibration, contact Land Instruments International for information regarding the ‘return manufacturer' policy.3
Calibration
S thermometers are inherently stable with time. 9.:liï'K
TTTT771
User Guide
MAINTENANCE, SERVICING CALIBRATION
S thermometers not have any user serviceable parts and therefore they require only minimal maintenance ensure trouble-free operation.
The following information should used conjunction with that found the Mountings and Accessories Installation Guide (PP310). promote good working practice, also recommended that thermometer cleanliness and services integrity checks should added any local plant maintenance schedule
