Sensor Installation; Sensor Positioning Information; Sensor Insertion - Hach LANGE ORBISPHERE C1100 User Manual

Installation

4.2 Sensor installation

4.2.1 Sensor positioning information

The sensor must be installed in a socket or flow chamber that allows contact with the sample
fluid to be analyzed.
The sensor and measuring instrument are connected by a cable and two 10-pin connectors.
The standard sensor cable length is 3 meters though extension cables of up to 1000 meters are
available. However, smart sensor technology is only available with distances of up to a
maximum of 750 meters.
Ensure that the sensor will be mounted:
• perpendicular to the pipe
• horizontal
• on a horizontal pipe section (or on flow-ascending vertical pipe)
• minimum of 15 meters away from the pump's discharge side
• in a place where the sample flow is stable and rapid, and as far as possible from:
•
•
•
•
Note: There may be situations where not all the above conditions can be met. If this is the case, or you
have any concerns, please consult your Hach Lange representative to appraise the situation and define the
best applicable solution.

4.2.2 Sensor insertion

• Insert the sensor straight into the flow chamber or socket. Do not twist the sensor.
• Hand tighten the attaching collar.
• Connect the sensor cable.
• Check for leaks; replace O-rings if product leaks are visible.
Micro Volume Flow Chambers:
Note: Do not twist the sensor when inserting it into a micro volume flow chamber. This rotation may twist the
membrane holding ring, thus changing the membrane position. This can modify the membrane measuring
conditions, and affect measurement precision.
20
valves
pipe bends
the suction side of any pumps
a CO injection system or similar
2
Figure 7 Sensor insertion