Masoneilan 8000 Models Positioners and Transducers ATEX Manual
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8.4.2. Start-Up
Before power up or after doing any work on the device, always check the cover is fully screwed
with the four screws (1). Screws up to surface contact then add ¼ to ½ turn more.
Check that the cable gland is certified for the intended use and that the electrical data are suitable
for the operating zone.
Before start-up, proceed, if required, with instrument calibration as per §9 and/or ensure that all the safety
instructions in the preceding paragraphs have been strictly followed.
9. Transducer and Positioner Calibration
Before to power up the device and to proceed a calibration, carefully read the following safety warnings.
Comply with current national and local regulations for electrical installation work.
Must be installed and put into service in conformance with EN 60079-14 and/or national and local
regulations applicable for explosible atmospheres.
Before carrying out any work on the device, power off the instrument or make sure the local
conditions are free of potentially explosive atmosphere for safe opening of the cover.
Connect the wires to the instrument terminals, taking care of complying with polarities, maximum
power dissipation allowed (2W), input signal (4-20mA).
Before power up or after doing any work on the device, always check the cover is fully screwed
with the four screws (1). Screws up to surface contact then add ¼ to ½ turn more.
In any case, check that the installed nozzle (Ref 16) is suitable for the valve size, for the actuator and for the
instrument air supply pressure.
