YSI 5200 - Manual (Page 12)

YSI Incorporated 10 5200 Recirculating System Monitor
WARNING: To avoid severe personal injury or damage to the equipment, installation, operation and
service should be performed by qualified personnel who are thoroughly familiar with the entire contents
of this manual.
3.2 Selecting an Installation Location
The 5200 monitor is an on-line continuous measurement tool that can be used to control various
operations and provide valuable insight into the facility’s operation. As with any instrument of this type,
proper installation is the first important step to ensure you are provided with reliable performance and
accurate data. Installation of the monitor and probe should be carefully planned in advance to obtain the
most effective and accurate utilization of the equipment.
3.2.1 Choosing a Probe Location
Probe location is determined by the necessity to obtain water quality readings which are representative of
the bulk flow stream. A suitable location should take a number of physical and chemical factors into
consideration. See Section 3.5 Installing the 5562 or 5561 Probe Assemblies.
Ö Standard probe cable lengths for the 5200 are 4, 10 and 20 meters. Consider the entire distance
required for cable routing when determining cable length requirements and mounting locations.
Ö The probe must be located in the flow stream where the sensors will remain submersed at all
times and level fluctuations will not expose them to the atmosphere.
Ö The probe must be placed in a well mixed, free-flowing area of the process stream. The flow
stream should be representative of the process being monitored/controlled. Placing the probe
midstream and mid-depth typically gives the most reliable results.
Ö Ideally, the probe should be placed at an angle within 45° of vertical and directed with the flow
direction (see Figure 3-1). This location will provide for the least stress on the support arm
holding the probe while minimizing the opportunity to collect debris. Placement against the flow
stream or perpendicular to the flow stream also provides accurate monitoring, but inspection and
cleaning may be required more frequently due to increased collection of debris.
Figure 3-1 Probe orientation (using rail mount kit)
The flow stream should be as free as possible of debris (e.g., algae) which could collect on the probe and
cause erroneous readings. See 3.5 Installing the 5562 or 5561 Probe Assemblies for flow requirements.
Probe
Not drawn
to scale.