INSTRUCTION MANUAL AquaScat 2
Mounting the measuring device
18
11778E/1
4.5.
Mounting the sample connections
4.5.1.
Important information when mounting the sample
connections
Flooding of the instrument due to incorrect connection of sample connections.
Note the following when connecting the hoses:
The drain hose must be fastened so that the flooding protection holes are not cov-
ered. Otherwise, flooding protection is not guaranteed (see the following picture).
All hose connections have to be secured with hose clamps. The connections should be
checked about 2 weeks after installation to ensure that no air can be pulled in.
In order to ensure an accurate measurement of the turbidity, observe the following points
when mounting the sample connections:
A continuous water flow rate as specified in the technical data is required.
Section 2.4
Large drops in the pressure must not occur; if that happens, air bubbles may occur.
A regulator valve must be used to adjust the water flow rate.
The use of transparent hoses is not permitted.
When mounting the inlet hose, ensure it does not exert any force on the inlet tube. Use
the supplied hose holder as strain relief.
Mounting drawings in Section 15
4.5.2.
Installation of the optional flow meter
SIGRIST recommends installing a simple flow meter to regularly check the sample flow.
Note the following points when mounting the flow meter:
The flow meter is to be fastened before the sample inlet of the photometer.
If the required water flow rate is exceeded or undershot, measuring errors may occur.
Installing a flow meter with limit switch helps to avoid this kind of problems.
CAUTION!
