Technical Menu; Turbidity; Overview; Installation - Blue I HydroGuard HG-302 Manual De Uso

6.4.4.2 Technical Menu

1. Press up and down together to enter the technical menu
2. Press Scroll until "62 Flow Sensor ON/OFF" appears in the display and press enter
3. Enter the technician password and press enter
4. Press up to turn the flow sensor on and press enter
5. Press Scroll again and "63 Flow Rate" appears in the display and press enter
6. Enter the technician password and press enter
7. Select the appropriate units, GPM or m
The flow meter should now be active. Confirm that the flow rate appears on the LCD display. If it is not
active, perform a system reset.
6.5

Turbidity

6.5.1 Overview

The turbidity upgrade will provide a measurement of the turbidity in NTU (Nephelometric Turbidity Units).
This provides a consistently objective evaluation of the overall water quality. A body of water with high
turbidity will appear dull or hazy. What constitutes "high" will vary based on the specific body of water but in
general water with turbidity above 0.5 NTU will appear hazy. Deeper bodies of water will appear dull and
hazy at a lower turbidity than shallow water.
High turbidity may be a result of poor filtration or unbalanced water chemistry. The turbidity value will
provide an indication that one of these conditions exists and action is required to improve the water quality.
In many cases the turbidity can be reduced by adding a flocculent to the filter which will improve filtration. A
turbidity relay is contained in the controller and will operate when the turbidity increases above set point.
This may be connected to a pump for flocculent or other equipment used to reduce turbidity, providing an
automatic response and maintaining clear water without requiring operating intervention. Likewise, if the
turbidity ever exceeds a pre-set limit, the controller will alarm indicating that attention is required.

6.5.2 Installation

Caution:
power supplies to the controller
There are five (5) wires, contained in a single cord, from the sensor that must be connected to the controller.
The standard wire length is 22 ft (7m), and may be cut or extended up to 650 ft (200m) as needed. The
turbidity flow cell and sensor must be securely mounted using appropriate hardware for the mounting
location. Unfiltered water will need to be supplied to the turbidity flow cell at a flow between 0.25 to 1 GPM
and less than 30 psi (2 bar).
3
/hr and press enter
Prior to opening the controller or installing any electrical components, turn off all
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