YSI IQ SensorNet 2020 XT Terminal - Manual (Page 54)

Installation System 2020 XT USB
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Fig. 3-16 Closing the cable opening
10 Screw the remaining cable glands with the sealing rings into
the remaining free openings and close them with the enclosed
blind plugs (pos. 4 in Fig. 3-16) and tighten the coupling ring
(pos. 3) if they are not used.
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