Hach PHOSPHAX sigma Manuel D'utilisation De Base page 123

Figure 3 Refrigerator valve connection
1
Set thermostat knob
at the top of the
refrigerator to 5–6.
Figure 4 Fan plate
Photometer-
baseplate
Connections of the feeds and drains
On the left housing side is the sample feed hose (approximately 1.2 m
long), which under no circumstances may be shortened or lengthened. It
is specially designed for the sample feeding through SIGMATAX 2.
Above this is a PG screw connection with outside wall connector for the
Control cable
Control cable connection
drain hose (LZP 573), which is simply attached from the outside
(Figure 5).
All external hoses should be routed as smooth and bend-free as
possible. The drain hose must be led on the shortest route (maximum
2 m) to a lower-lying and generously dimensioned drain, which even
during the frost season also guarantees an outflow without any backing-
up! A blockage in the drain hose may cause the hoses to spring off
either in the device or outside.
Figure 5 Hose connections
Sample feed hose.
Notice! Do not shorten
or lengthen.
Drain hose
English 123