Replacing Reagents - Blue I HydroGuard HG-302 Manual De Uso

5.2

Replacing Reagents

HydroGuard issues a LOW REAGENTS alarm when the float at the end of one of the reagent siphons
detects that one or both of the reagents is approaching depletion. After this time, HydroGuard will count
down (internally) until the reagents are expected to be completely depleted and the Cl analysis and control
will stop. The blue LED lights in the flow cell will flash continuously until the reagents are replaced or they
are depleted, resulting in a NO REAGENTS alarm and an opening of the chlorine relays, preventing any
additional chlorine from being added. Prior to receiving the NO REAGENTS alarm, replace the reagents:
1. Open the HydroGuard analyzing unit door.
2. Press the lever above the siphon cover on the chlorine indicator bottle and pull the bottom of the bottle
until it drops down from the siphon.
Figure 16: Press Tab Above Siphon Cover and Pull Bottle Down
3. Wipe the siphons with a dry cloth.
4. Perform the procedure to mix and install new reagent bottles, as instructed in section 4.2 Installing
Reagents.
Caution: Do NOT pour remaining reagent fluid from the old bottle to new bottle. Mixing old and
new reagent fluids destroys their effectiveness.
5. Repeat the steps above with the chlorine buffer bottle.
6. Close the analyzing unit door.
7. Locate the Pump button on HydroGuard's control panel.
Press the Pump button for fifteen (15) seconds until the water visible through the viewing window
appears with a red tint.
8. Locate the LCD detail readings window in the HydroGuard control panel.
Check if the Low Reagent alarm message appears in the bottom row.
9. Locate the red LED Cl and pH readings indicators in the HydroGuard control panel.
A number should appear in both displays.
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