Hach-Lange SI792 C, SI792x C, SI792x C-FF, SI792x C-PA User Manual - Manual (Page 21)

Installation
19
Figure 2 Wall attachment dimensions
1 Breakout for wall mounting (2x) 5 Groove for panel mount gasket
2 Hole for pipe mounting (4x) 6 Strain relief opening (3x)
3 Strain relief (3x) 7 Strain relief or ½ inch conduit opening
(2x) Ø 21.5 mm [0.85 in] 4 Breakout for panel mounting