Xylem YSI Alyza IQ NH4, Operation Manual

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Commissioning Alyza IQ NH4
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3.3.13 Connecting the power cable and heat tracing lines
The intake lines and return lines are inserted into the housing through dust-proof
lead-in ducts. The cable glands with seals are at the bottom of the housing.
figure 3-20Mounted terminal holder TM with canopy, MIQ/JB and MIQ/TC 2020 3G
For all work done with the housing open:
 If the Alyza IQ was already in operation:
Before opening the measuring unit, start the maintenance routine
at the terminal.
 Note the environmental conditions (see section 3.3.1 Require-
ments of the measurement location,
 26).
 Open the outer housing door far enough so the arrestable brake-
stay (on the lower right side of the housing) catches.
 Open the inner housing door far enough so that it touches the
outer door. Tilt the angular sheet (at the inside of the outer door)
over the upper edge of the inside door.