Vaisala PR53AC Guia De Instalacion página 24

7. Reinstall the refractometer cover. Tighten screws to 2 Nm using a TX20 Torx key. Be
careful not to overtighten. The screws may break.
If you are connecting to Indigo520 transmitter, see Indigo500 User Guide
(M212287EN) for wiring options.
24 M212866EN-B