Chapter 4: First Time Operation And Calibration; Installing Sensors; Installing Reagents - Blue I HydroGuard HG-302 Manual De Uso

Chapter 4:
4.1

Installing Sensors

The following procedure describes how to install the Redox (ORP) and pH sensors in the HydroGuard unit.
The installation of all the sensors in the flow cell is similar, expect for the connecting wires.
Caution: Make sure the pH and Redox sensors have plastic or rubber plugs covering their ends.
Use another sensor if the plug of any sensor is missing or has fallen off.
Make sure to connect the appropriate wire to the appropriate sensors. Labels are located on the
wires near the probe connection and on the connection on the tube probe Module.
1. Remove the sensor from its packing box.
2. Remove the plastic cover or plug from the end of the sensor and drain the solution from the tube.
Keep the plastic cover in a safe place for winterizing or storage of probes.
3. Hold the sensor by its metal connector, with the glass tube pointing down.
4. Insert the sensor into the top of the transparent flow cell and thread in securely. DO NOT
OVERTIGHTEN.
5. Connect the appropriate sensor plug to the sensor's metal connector. Make sure the proper plug is
connected to the correct sensor:
6. Switch the HydroGuard ON, verify that pH reading appears on the red LED display and the ORP (Redox)
reading appears in the LCD display.
Observe the pH and ORP (Redox) levels and wait several minutes until both readings stabilize.
If either one or both indicators do not display a proper reading or are not stable, see Troubleshooting.
4.2

Installing Reagents

The following procedure describes how to mix and install the reagent bottles:
1. Open the HydroGuard Chlorine Indicator and Buffer kit.
The following items should be in the box:
A. Chlorine indicator and buffer mixing instructions.
B. 1 X 500 ml bottle of chlorine buffer with a white label.
C. 1 X 500 ml bottle of chlorine indicator fluid with a blue label.
D. 1 X small bottle of chlorine indicator salt with a white label.
2. Remove the caps on both the indicator fluid and small indicator salt bottles .
3. Empty the contents of the indicator salt into the bottle of indicator fluid .
4. Place the cap on the bottle of chlorine indicator fluid and close tightly.
5. Turn the bottle upside-down slowly and carefully, so that no bubbles form in the fluid.
First Time Operation and Calibration
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