GUILCOR AR004926, Инструкция по эксплуатации, Страница: 52 / 75

52
Recommendations for metrological verification _________
Metrological verification is performed in accordance with application
requirements specified by the user. In some cases, calibrations must
be performed by the accredited laboratory. The manufacturer
recommends to perform these verifications once a year.
Note: accuracy of Multilogger input means accuracy of input itself
without probes.
When verification of thermocouple inputs it is necessary to take into
account that cold junction compensation is perform inside of
Multilogger, where temperature is somewhat higher than ambient
temperature on the outer connector. This fact can sometimes cause
problems when performing verifications using the electric simulators
of the thermocouples. The best way is to do the temperature
verification together with the thermocouple.
Recommendations for periodical inspections ___________
The manufacturer recommends to perform regular inspections of the
system, into which the Multilogger is included. The interval and range
of the inspections depends on the particular application. The following
inspections are recommended for stationary installations:

metrological verifications

regular revisions and inspections subject to the intervals specified
in the corresponding standards

assessments of all problems that occur since the last inspection

visual inspection of the device and checking of the connectors

device functionality inspections (i.e. the functions used for a given
application):
a) verification of data transfer to computer
b) verification of alarms - change input value to activate
alarm and check display message and alarm
signalization (if used)
c) check the battery voltage (in device menu)