Electrical Installation - Hach FT660 sc Manuel D'utilisation De Base

Figure 4 Instrument dimensions
1 22 cm (10 in.) minimum clearance

Electrical installation

Connect an sc controller using Quick-connect fitting
The instrument can be connected to an sc controller using the keyed
quick-connect fitting (Figure 5). Extension cables are available. Retain
the connector cap to seal the connector opening in case the instrument
must be removed. Refer to the sc controller manual for more information.
Q-Pulse Id VM277
8 English
Vendor Manual Hach A090-070427-003 FT660 SC User Manual
Active 09/09/2013
Figure 5 Quick-connect fitting
Plumbing
Sample line considerations
Select a good, representative sampling point for optimum instrument
performance. The sample analyzed must be representative of the
conditon of the entire system.
To minimize erratic readings:
• Draw samples from locations that are sufficiently distant from points of
chemical additions to the process stream
• Make sure samples are sufficiently mixed
• Make sure all chemical reactions are complete
Connect the sample stream
Connect sample inlet and drain lines to the fittings on the body of the
instrument (Figure 1 on page 6). Sample inlet and drain tubing are
supplied by the customer. Refer to
requirements.
Install the sample line(s) into a larger process pipe to minimize
interference from air bubbles or pipeline bottom sediment. A sample line
going into the center of a process pipe is best.
Specifications on page 3 for tubing
Page 8 of 68